Children in United States vaccinated for polio elsewhere may require revaccination

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Fri, 01/18/2019 - 16:28

 

Poliovirus vaccinations for children in the United States who may have been vaccinated elsewhere must meet Advisory Committee on Immunization Practices recommendations to ensure protection against all three poliovirus types, according to guidance published in the Centers for Disease Control and Prevention’s Morbidity and Mortality Weekly Report.

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“Children living in the United States who might have received poliovirus vaccination outside the United States should meet ACIP recommendations for poliovirus vaccination, which require protection against all three poliovirus types by age-appropriate vaccination with IPV or tOPV,” according to Mona Marin, MD, of the National Center for Immunization and Respiratory Diseases at the Centers for Disease Control and Prevention in Atlanta, and her colleagues.

The researchers note that only written, dated records are acceptable evidence of complete vaccination, and documentation of polio vaccination outside of the United States should specify that the child has been vaccinated against all three types. “If both tOPV and IPV were administered as part of a series, the total number of doses needed to complete the series is the same as that recommended for the U.S. IPV schedule,” they wrote. That is, all infants and children should receive four doses of IPV at ages 2 months, 4 months, 6-18 months, and at 4-6 years. The minimum interval between the third and fourth doses should be 6 months.

Children younger than 18 years lacking written, dated documentation of poliovirus vaccination should be vaccinated or revaccinated according to the U.S. IPV schedule for their age, according to the guidelines.

Serologic testing, once used to confirm immunity to polio, is not recommended as a measure of immunity in the United States because antibody testing against type 2 poliovirus often is not available, the researchers added.

The full guidelines are available at MMWR. 2017 Jan 13. doi: 10.15585/mmwr.mm6601a6.

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Poliovirus vaccinations for children in the United States who may have been vaccinated elsewhere must meet Advisory Committee on Immunization Practices recommendations to ensure protection against all three poliovirus types, according to guidance published in the Centers for Disease Control and Prevention’s Morbidity and Mortality Weekly Report.

designer491/Thinkstock
“Children living in the United States who might have received poliovirus vaccination outside the United States should meet ACIP recommendations for poliovirus vaccination, which require protection against all three poliovirus types by age-appropriate vaccination with IPV or tOPV,” according to Mona Marin, MD, of the National Center for Immunization and Respiratory Diseases at the Centers for Disease Control and Prevention in Atlanta, and her colleagues.

The researchers note that only written, dated records are acceptable evidence of complete vaccination, and documentation of polio vaccination outside of the United States should specify that the child has been vaccinated against all three types. “If both tOPV and IPV were administered as part of a series, the total number of doses needed to complete the series is the same as that recommended for the U.S. IPV schedule,” they wrote. That is, all infants and children should receive four doses of IPV at ages 2 months, 4 months, 6-18 months, and at 4-6 years. The minimum interval between the third and fourth doses should be 6 months.

Children younger than 18 years lacking written, dated documentation of poliovirus vaccination should be vaccinated or revaccinated according to the U.S. IPV schedule for their age, according to the guidelines.

Serologic testing, once used to confirm immunity to polio, is not recommended as a measure of immunity in the United States because antibody testing against type 2 poliovirus often is not available, the researchers added.

The full guidelines are available at MMWR. 2017 Jan 13. doi: 10.15585/mmwr.mm6601a6.

 

Poliovirus vaccinations for children in the United States who may have been vaccinated elsewhere must meet Advisory Committee on Immunization Practices recommendations to ensure protection against all three poliovirus types, according to guidance published in the Centers for Disease Control and Prevention’s Morbidity and Mortality Weekly Report.

designer491/Thinkstock
“Children living in the United States who might have received poliovirus vaccination outside the United States should meet ACIP recommendations for poliovirus vaccination, which require protection against all three poliovirus types by age-appropriate vaccination with IPV or tOPV,” according to Mona Marin, MD, of the National Center for Immunization and Respiratory Diseases at the Centers for Disease Control and Prevention in Atlanta, and her colleagues.

The researchers note that only written, dated records are acceptable evidence of complete vaccination, and documentation of polio vaccination outside of the United States should specify that the child has been vaccinated against all three types. “If both tOPV and IPV were administered as part of a series, the total number of doses needed to complete the series is the same as that recommended for the U.S. IPV schedule,” they wrote. That is, all infants and children should receive four doses of IPV at ages 2 months, 4 months, 6-18 months, and at 4-6 years. The minimum interval between the third and fourth doses should be 6 months.

Children younger than 18 years lacking written, dated documentation of poliovirus vaccination should be vaccinated or revaccinated according to the U.S. IPV schedule for their age, according to the guidelines.

Serologic testing, once used to confirm immunity to polio, is not recommended as a measure of immunity in the United States because antibody testing against type 2 poliovirus often is not available, the researchers added.

The full guidelines are available at MMWR. 2017 Jan 13. doi: 10.15585/mmwr.mm6601a6.

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PD-L1 testing in NSCLC patients shows high concordance

NSCLC treatment needs PD-L1 test harmonization
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Tue, 07/21/2020 - 14:18

 

– Several different tests for PD-L1 levels in tumor cells of patients with metastatic non–small cell lung cancer showed high concordance when run at seven French centers, boosting confidence in the clinical utility of this testing to guide first-line pembrolizumab treatment of patients with this cancer.

Among 27 laboratory-developed tests for PD-L1 (programmed death–ligand 1) levels in tumor cells that used any one of three prespecified testing platforms (made by Dako, Ventana, or Leica), 14 (52%) had “similar” concordance when compared with reference assays, Julien Adam, MD, said at the World Conference on Lung Cancer, sponsored by the International Association for the Study of Lung Cancer. “These results will provide the basis for making national recommendations for PD-L1 testing in patients with non–small cell lung cancer [NSCLC]” in France, added Dr. Adam, a pathologist at Gustave Roussy Cancer Center in Paris. “We expect to produce recommendations by the second half of 2017.”

Mitchel L. Zoler/Frontline Medical News
Dr. Julien Adam
Several single-center studies had examined harmonization of several different PD-L1 tests, but the new, multicenter study examined several different antibodies and platforms systematically, he noted.

Although the results came entirely from French centers, the results will also likely influence U.S. practice, predicted Shirish M. Gadgeel, MD, a thoracic oncologist at the Karmanos Cancer Institute in Detroit. The approval pembrolizumab (Keytruda) received from the Food and Drug Administration in October specified that patients with metastatic NSCLC had to show PD-L1 expression in the tumor using a FDA-approved test to receive pembrolizumab as first-line treatment.

“Before pembrolizumab’s approval there was no incentive to do PD-L1 testing,” but now it is becoming routine, he said. “It has been challenging to U.S. laboratories to decide which platform and antibody to use. Harmonization gives us confidence that if you have a platform and appropriate antibody you should be able to use the results clinically. I think the French results can be extrapolated” to U.S. practice because the results “came from multiple labs using multiple antibodies and platforms,” Dr. Gadgeel said.

Mitchel L. Zoler/Frontline Medical News
Dr. Julie R. Brahmer
The new French study “is unique by being very real-world, in one country across multiple institutions,” commented Julie R. Brahmer, MD, director of thoracic oncology at the Johns Hopkins Kimmel Cancer Center in Baltimore. “It behooves every physician [caring for advanced NSCLC patients] to know what a PD-L1 test means when they get a result.” An ongoing effort to assess performance of PD-L1 testing at U.S. centers began in late 2015 by the National Comprehensive Cancer Network.

The French study arranged for PD-L1 testing of NSCLC specimens from 41 patients selected as broadly representative of PD-L1 expression levels. The seven participating centers used a Dako (three centers), Ventana (two centers), or Leica (two centers) testing platform and one of five available antibodies that bind PD-L1. Every center ran tests that depended on different antibodies, and tests occurred on both tumor cells and immune cells. In total the seven testing sites collectively performed 35 stainings on each specimen for a total of 1,435 slides. In tumor cells, the overall, weighted kappa coefficient for concordance was 0.81 for tests that used the SP263 antibody and 0.78 for those using the E1L3N antibody, both high enough to make them potential candidates for routine use, said Dr. Adam. The 28-8 and 22C3 antibodies also showed high concordance levels. In contrast, some antibodies used at certain centers produced unacceptable results with concordance coefficients of less than 0.5. The best performing antibody overall was SP263.

No test measuring PD-L1 level in immune cells had an acceptable concordance rate, Dr. Adam also reported.

Body

 

Researchers have developed several different antibodies for measuring levels of PD-L1 in tumor cells and the antibodies can be used in several different testing platforms. Although most laboratories focus on using one specific immunohistochemical platform, the overall status of real-world PD-L1 testing is messy.

In the results reported by Dr. Adam, concordance weighted kappa coefficients of 0.8 or higher show extremely good concordance, and coefficients of 0.6-0.79 show good concordance. Several of the tests and testing sites reported by Dr. Adam showed concordance coefficients within these ranges. In certain other cases the concordance coefficients were very low, which prompts concern about the reliability of these low-scoring tests. The results show that the results you see in one laboratory with a specific antibody and platform test may not always remain consistent with the same antibody and platform used elsewhere.

Mitchel L. Zoler/Frontline Medical News
Dr. Michael Boyer
Testing for PD-L1 is important because right now it is how we identify patients with metastatic non–small cell lung cancer who are candidates for first-line pembrolizumab treatment. Knowing how individual laboratories perform PD-L1 testing and having confidence in the results is very important for managing these patients. We need to understand what individual laboratories do and what their results mean. A close collaboration between clinicians and pathologists is needed to optimize patient care.

Michael Boyer, MD, is a professor of medicine at the University of Sydney and a thoracic oncologist and chief clinical officer of the Chris O’Brien Lifehouse in Sydney. He has received research support from Merck and from AstraZeneca, Bristol-Myers Squibb, Clovis, Eli Lilly, Pfizer, and Roche. He made these comments as designated discussant for the report.

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Researchers have developed several different antibodies for measuring levels of PD-L1 in tumor cells and the antibodies can be used in several different testing platforms. Although most laboratories focus on using one specific immunohistochemical platform, the overall status of real-world PD-L1 testing is messy.

In the results reported by Dr. Adam, concordance weighted kappa coefficients of 0.8 or higher show extremely good concordance, and coefficients of 0.6-0.79 show good concordance. Several of the tests and testing sites reported by Dr. Adam showed concordance coefficients within these ranges. In certain other cases the concordance coefficients were very low, which prompts concern about the reliability of these low-scoring tests. The results show that the results you see in one laboratory with a specific antibody and platform test may not always remain consistent with the same antibody and platform used elsewhere.

Mitchel L. Zoler/Frontline Medical News
Dr. Michael Boyer
Testing for PD-L1 is important because right now it is how we identify patients with metastatic non–small cell lung cancer who are candidates for first-line pembrolizumab treatment. Knowing how individual laboratories perform PD-L1 testing and having confidence in the results is very important for managing these patients. We need to understand what individual laboratories do and what their results mean. A close collaboration between clinicians and pathologists is needed to optimize patient care.

Michael Boyer, MD, is a professor of medicine at the University of Sydney and a thoracic oncologist and chief clinical officer of the Chris O’Brien Lifehouse in Sydney. He has received research support from Merck and from AstraZeneca, Bristol-Myers Squibb, Clovis, Eli Lilly, Pfizer, and Roche. He made these comments as designated discussant for the report.

Body

 

Researchers have developed several different antibodies for measuring levels of PD-L1 in tumor cells and the antibodies can be used in several different testing platforms. Although most laboratories focus on using one specific immunohistochemical platform, the overall status of real-world PD-L1 testing is messy.

In the results reported by Dr. Adam, concordance weighted kappa coefficients of 0.8 or higher show extremely good concordance, and coefficients of 0.6-0.79 show good concordance. Several of the tests and testing sites reported by Dr. Adam showed concordance coefficients within these ranges. In certain other cases the concordance coefficients were very low, which prompts concern about the reliability of these low-scoring tests. The results show that the results you see in one laboratory with a specific antibody and platform test may not always remain consistent with the same antibody and platform used elsewhere.

Mitchel L. Zoler/Frontline Medical News
Dr. Michael Boyer
Testing for PD-L1 is important because right now it is how we identify patients with metastatic non–small cell lung cancer who are candidates for first-line pembrolizumab treatment. Knowing how individual laboratories perform PD-L1 testing and having confidence in the results is very important for managing these patients. We need to understand what individual laboratories do and what their results mean. A close collaboration between clinicians and pathologists is needed to optimize patient care.

Michael Boyer, MD, is a professor of medicine at the University of Sydney and a thoracic oncologist and chief clinical officer of the Chris O’Brien Lifehouse in Sydney. He has received research support from Merck and from AstraZeneca, Bristol-Myers Squibb, Clovis, Eli Lilly, Pfizer, and Roche. He made these comments as designated discussant for the report.

Title
NSCLC treatment needs PD-L1 test harmonization
NSCLC treatment needs PD-L1 test harmonization

 

– Several different tests for PD-L1 levels in tumor cells of patients with metastatic non–small cell lung cancer showed high concordance when run at seven French centers, boosting confidence in the clinical utility of this testing to guide first-line pembrolizumab treatment of patients with this cancer.

Among 27 laboratory-developed tests for PD-L1 (programmed death–ligand 1) levels in tumor cells that used any one of three prespecified testing platforms (made by Dako, Ventana, or Leica), 14 (52%) had “similar” concordance when compared with reference assays, Julien Adam, MD, said at the World Conference on Lung Cancer, sponsored by the International Association for the Study of Lung Cancer. “These results will provide the basis for making national recommendations for PD-L1 testing in patients with non–small cell lung cancer [NSCLC]” in France, added Dr. Adam, a pathologist at Gustave Roussy Cancer Center in Paris. “We expect to produce recommendations by the second half of 2017.”

Mitchel L. Zoler/Frontline Medical News
Dr. Julien Adam
Several single-center studies had examined harmonization of several different PD-L1 tests, but the new, multicenter study examined several different antibodies and platforms systematically, he noted.

Although the results came entirely from French centers, the results will also likely influence U.S. practice, predicted Shirish M. Gadgeel, MD, a thoracic oncologist at the Karmanos Cancer Institute in Detroit. The approval pembrolizumab (Keytruda) received from the Food and Drug Administration in October specified that patients with metastatic NSCLC had to show PD-L1 expression in the tumor using a FDA-approved test to receive pembrolizumab as first-line treatment.

“Before pembrolizumab’s approval there was no incentive to do PD-L1 testing,” but now it is becoming routine, he said. “It has been challenging to U.S. laboratories to decide which platform and antibody to use. Harmonization gives us confidence that if you have a platform and appropriate antibody you should be able to use the results clinically. I think the French results can be extrapolated” to U.S. practice because the results “came from multiple labs using multiple antibodies and platforms,” Dr. Gadgeel said.

Mitchel L. Zoler/Frontline Medical News
Dr. Julie R. Brahmer
The new French study “is unique by being very real-world, in one country across multiple institutions,” commented Julie R. Brahmer, MD, director of thoracic oncology at the Johns Hopkins Kimmel Cancer Center in Baltimore. “It behooves every physician [caring for advanced NSCLC patients] to know what a PD-L1 test means when they get a result.” An ongoing effort to assess performance of PD-L1 testing at U.S. centers began in late 2015 by the National Comprehensive Cancer Network.

The French study arranged for PD-L1 testing of NSCLC specimens from 41 patients selected as broadly representative of PD-L1 expression levels. The seven participating centers used a Dako (three centers), Ventana (two centers), or Leica (two centers) testing platform and one of five available antibodies that bind PD-L1. Every center ran tests that depended on different antibodies, and tests occurred on both tumor cells and immune cells. In total the seven testing sites collectively performed 35 stainings on each specimen for a total of 1,435 slides. In tumor cells, the overall, weighted kappa coefficient for concordance was 0.81 for tests that used the SP263 antibody and 0.78 for those using the E1L3N antibody, both high enough to make them potential candidates for routine use, said Dr. Adam. The 28-8 and 22C3 antibodies also showed high concordance levels. In contrast, some antibodies used at certain centers produced unacceptable results with concordance coefficients of less than 0.5. The best performing antibody overall was SP263.

No test measuring PD-L1 level in immune cells had an acceptable concordance rate, Dr. Adam also reported.

 

– Several different tests for PD-L1 levels in tumor cells of patients with metastatic non–small cell lung cancer showed high concordance when run at seven French centers, boosting confidence in the clinical utility of this testing to guide first-line pembrolizumab treatment of patients with this cancer.

Among 27 laboratory-developed tests for PD-L1 (programmed death–ligand 1) levels in tumor cells that used any one of three prespecified testing platforms (made by Dako, Ventana, or Leica), 14 (52%) had “similar” concordance when compared with reference assays, Julien Adam, MD, said at the World Conference on Lung Cancer, sponsored by the International Association for the Study of Lung Cancer. “These results will provide the basis for making national recommendations for PD-L1 testing in patients with non–small cell lung cancer [NSCLC]” in France, added Dr. Adam, a pathologist at Gustave Roussy Cancer Center in Paris. “We expect to produce recommendations by the second half of 2017.”

Mitchel L. Zoler/Frontline Medical News
Dr. Julien Adam
Several single-center studies had examined harmonization of several different PD-L1 tests, but the new, multicenter study examined several different antibodies and platforms systematically, he noted.

Although the results came entirely from French centers, the results will also likely influence U.S. practice, predicted Shirish M. Gadgeel, MD, a thoracic oncologist at the Karmanos Cancer Institute in Detroit. The approval pembrolizumab (Keytruda) received from the Food and Drug Administration in October specified that patients with metastatic NSCLC had to show PD-L1 expression in the tumor using a FDA-approved test to receive pembrolizumab as first-line treatment.

“Before pembrolizumab’s approval there was no incentive to do PD-L1 testing,” but now it is becoming routine, he said. “It has been challenging to U.S. laboratories to decide which platform and antibody to use. Harmonization gives us confidence that if you have a platform and appropriate antibody you should be able to use the results clinically. I think the French results can be extrapolated” to U.S. practice because the results “came from multiple labs using multiple antibodies and platforms,” Dr. Gadgeel said.

Mitchel L. Zoler/Frontline Medical News
Dr. Julie R. Brahmer
The new French study “is unique by being very real-world, in one country across multiple institutions,” commented Julie R. Brahmer, MD, director of thoracic oncology at the Johns Hopkins Kimmel Cancer Center in Baltimore. “It behooves every physician [caring for advanced NSCLC patients] to know what a PD-L1 test means when they get a result.” An ongoing effort to assess performance of PD-L1 testing at U.S. centers began in late 2015 by the National Comprehensive Cancer Network.

The French study arranged for PD-L1 testing of NSCLC specimens from 41 patients selected as broadly representative of PD-L1 expression levels. The seven participating centers used a Dako (three centers), Ventana (two centers), or Leica (two centers) testing platform and one of five available antibodies that bind PD-L1. Every center ran tests that depended on different antibodies, and tests occurred on both tumor cells and immune cells. In total the seven testing sites collectively performed 35 stainings on each specimen for a total of 1,435 slides. In tumor cells, the overall, weighted kappa coefficient for concordance was 0.81 for tests that used the SP263 antibody and 0.78 for those using the E1L3N antibody, both high enough to make them potential candidates for routine use, said Dr. Adam. The 28-8 and 22C3 antibodies also showed high concordance levels. In contrast, some antibodies used at certain centers produced unacceptable results with concordance coefficients of less than 0.5. The best performing antibody overall was SP263.

No test measuring PD-L1 level in immune cells had an acceptable concordance rate, Dr. Adam also reported.

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Key clinical point: Several French laboratory–developed tests for assessing PD-L1 levels in non–small cell lung cancer cells showed high levels of concordance, a key step in harmonizing PD-L1 detection using multiple testing options.

Major finding: The concordance weighted kappa coefficient was highest for tests using the SP263 antibody, with an average coefficient of 0.81.

Data source: Forty-one non–small cell lung cancer specimens subjected to a total of 35 different tests.

Disclosures: Funding for the study came from AstraZeneca, Bristol Myers Squibb, Merck Sharp and Dohme, and Roche. Dr. Adam has been a consultant to AstraZeneca, Bristol-Myers Squibb, HalioDx, Merck Sharp and Dohme, and Roche. Dr. Gadgeel has been a speaker on behalf of Eli Lilly, Genentech, and GlaxoSmithKline and has received research funding from AstraZeneca, Eli Lilly, and Genentech. Dr. Brahmer has served on an advisory board for Merck.

Lenalidomide maintenance extended progression-free survival in high-risk CLL

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Thu, 01/12/2023 - 10:46

 

– Patients with chronic lymphocytic leukemia at risk for early relapse were about 85% less likely to progress on lenalidomide maintenance therapy compared with placebo, based on an interim analysis of the randomized phase III CLLM1 study.

After a typical follow-up time of 17.5 months, median durations of progression-free survival were not reached with lenalidomide and were 13 months with placebo, for a hazard ratio of 0.15 (95% confidence interval, 0.06-0.35). These results were “statistically significant, robust, and reliable in favor of lenalidomide,” Anna Fink, MD, said at the 2016 meeting of the American Society of Hematology. Several patients in the lenalidomide arm also converted to minimal residual disease (MRD) negativity, added Dr. Fink of University Hospital Cologne (Germany).

The study included patients whose CLL responded at least partially to front-line chemoimmunotherapy, but who were at high risk of progression – minimal residual disease levels were at least 10–2, or were between 10–4 and 10–2 in patients who also had an unmutated IGHV gene status or del(17p) or TP53 mutations at baseline. Among 89 patients who met these criteria, 60 received lenalidomide maintenance and 20 received placebo.

The initial lenalidomide cycle consisted of 5 mg daily for 28 days. To achieve MRD negativity, clinicians increased this dose during subsequent cycles to a maximum of 15 mg daily for patients who were MRD negative after cycle 12, 20 mg for patients who were MRD negative after cycle 18, and 25 mg for patients who remained MRD positive. Median age was 64 years, more than 80% of patients were male, and the median cumulative illness rating was relatively low at 2, ranging between 0 and 8.

A total of 37% of patients had a high MRD level and 63% had an intermediate level. For both cohorts, lenalidomide maintenance significantly prolonged progression-free survival, compared with placebo, with hazard ratios of 0.17 and 0.13, respectively. Patients received a median of 11 and up to 40 cycles of lenalidomide, but a median of only 8 cycles of placebo.

In all, 43% of lenalidomide patients and 72% of placebo patients stopped maintenance. Nearly a third of those who discontinued lenalidomide did so because of adverse events, but 45% of patients who stopped placebo did so because of progressive disease, Dr. Fink said. Lenalidomide was associated with more neutropenia, gastrointestinal disorders, nervous system disorders, and respiratory and skin disorders than was placebo, but the events were usually mild to moderate in severity, she added.

The three deaths in this study yielded no treatment-based difference in rates of overall survival. Causes of death included acute lymphoblastic leukemia (lenalidomide arm), progressive multifocal leukoencephalopathy (placebo), and Richter’s syndrome (placebo). Venous thromboembolic events were uncommon because patients were given low-dose aspirin or anticoagulant therapy, Dr. Fink noted.

“Lenalidomide is a feasible and efficacious maintenance option for high-risk CLL after chemoimmunotherapy,” she concluded. The low duration of progression-free survival in the placebo group confirms the prognostic utility of assessing risk based on MRD, which might be useful in future studies, she added.

The German CLL Study Group sponsored the trial. Dr. Fink disclosed ties to Mundipharma, Roche, Celgene, and AbbVie.

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– Patients with chronic lymphocytic leukemia at risk for early relapse were about 85% less likely to progress on lenalidomide maintenance therapy compared with placebo, based on an interim analysis of the randomized phase III CLLM1 study.

After a typical follow-up time of 17.5 months, median durations of progression-free survival were not reached with lenalidomide and were 13 months with placebo, for a hazard ratio of 0.15 (95% confidence interval, 0.06-0.35). These results were “statistically significant, robust, and reliable in favor of lenalidomide,” Anna Fink, MD, said at the 2016 meeting of the American Society of Hematology. Several patients in the lenalidomide arm also converted to minimal residual disease (MRD) negativity, added Dr. Fink of University Hospital Cologne (Germany).

The study included patients whose CLL responded at least partially to front-line chemoimmunotherapy, but who were at high risk of progression – minimal residual disease levels were at least 10–2, or were between 10–4 and 10–2 in patients who also had an unmutated IGHV gene status or del(17p) or TP53 mutations at baseline. Among 89 patients who met these criteria, 60 received lenalidomide maintenance and 20 received placebo.

The initial lenalidomide cycle consisted of 5 mg daily for 28 days. To achieve MRD negativity, clinicians increased this dose during subsequent cycles to a maximum of 15 mg daily for patients who were MRD negative after cycle 12, 20 mg for patients who were MRD negative after cycle 18, and 25 mg for patients who remained MRD positive. Median age was 64 years, more than 80% of patients were male, and the median cumulative illness rating was relatively low at 2, ranging between 0 and 8.

A total of 37% of patients had a high MRD level and 63% had an intermediate level. For both cohorts, lenalidomide maintenance significantly prolonged progression-free survival, compared with placebo, with hazard ratios of 0.17 and 0.13, respectively. Patients received a median of 11 and up to 40 cycles of lenalidomide, but a median of only 8 cycles of placebo.

In all, 43% of lenalidomide patients and 72% of placebo patients stopped maintenance. Nearly a third of those who discontinued lenalidomide did so because of adverse events, but 45% of patients who stopped placebo did so because of progressive disease, Dr. Fink said. Lenalidomide was associated with more neutropenia, gastrointestinal disorders, nervous system disorders, and respiratory and skin disorders than was placebo, but the events were usually mild to moderate in severity, she added.

The three deaths in this study yielded no treatment-based difference in rates of overall survival. Causes of death included acute lymphoblastic leukemia (lenalidomide arm), progressive multifocal leukoencephalopathy (placebo), and Richter’s syndrome (placebo). Venous thromboembolic events were uncommon because patients were given low-dose aspirin or anticoagulant therapy, Dr. Fink noted.

“Lenalidomide is a feasible and efficacious maintenance option for high-risk CLL after chemoimmunotherapy,” she concluded. The low duration of progression-free survival in the placebo group confirms the prognostic utility of assessing risk based on MRD, which might be useful in future studies, she added.

The German CLL Study Group sponsored the trial. Dr. Fink disclosed ties to Mundipharma, Roche, Celgene, and AbbVie.

 

– Patients with chronic lymphocytic leukemia at risk for early relapse were about 85% less likely to progress on lenalidomide maintenance therapy compared with placebo, based on an interim analysis of the randomized phase III CLLM1 study.

After a typical follow-up time of 17.5 months, median durations of progression-free survival were not reached with lenalidomide and were 13 months with placebo, for a hazard ratio of 0.15 (95% confidence interval, 0.06-0.35). These results were “statistically significant, robust, and reliable in favor of lenalidomide,” Anna Fink, MD, said at the 2016 meeting of the American Society of Hematology. Several patients in the lenalidomide arm also converted to minimal residual disease (MRD) negativity, added Dr. Fink of University Hospital Cologne (Germany).

The study included patients whose CLL responded at least partially to front-line chemoimmunotherapy, but who were at high risk of progression – minimal residual disease levels were at least 10–2, or were between 10–4 and 10–2 in patients who also had an unmutated IGHV gene status or del(17p) or TP53 mutations at baseline. Among 89 patients who met these criteria, 60 received lenalidomide maintenance and 20 received placebo.

The initial lenalidomide cycle consisted of 5 mg daily for 28 days. To achieve MRD negativity, clinicians increased this dose during subsequent cycles to a maximum of 15 mg daily for patients who were MRD negative after cycle 12, 20 mg for patients who were MRD negative after cycle 18, and 25 mg for patients who remained MRD positive. Median age was 64 years, more than 80% of patients were male, and the median cumulative illness rating was relatively low at 2, ranging between 0 and 8.

A total of 37% of patients had a high MRD level and 63% had an intermediate level. For both cohorts, lenalidomide maintenance significantly prolonged progression-free survival, compared with placebo, with hazard ratios of 0.17 and 0.13, respectively. Patients received a median of 11 and up to 40 cycles of lenalidomide, but a median of only 8 cycles of placebo.

In all, 43% of lenalidomide patients and 72% of placebo patients stopped maintenance. Nearly a third of those who discontinued lenalidomide did so because of adverse events, but 45% of patients who stopped placebo did so because of progressive disease, Dr. Fink said. Lenalidomide was associated with more neutropenia, gastrointestinal disorders, nervous system disorders, and respiratory and skin disorders than was placebo, but the events were usually mild to moderate in severity, she added.

The three deaths in this study yielded no treatment-based difference in rates of overall survival. Causes of death included acute lymphoblastic leukemia (lenalidomide arm), progressive multifocal leukoencephalopathy (placebo), and Richter’s syndrome (placebo). Venous thromboembolic events were uncommon because patients were given low-dose aspirin or anticoagulant therapy, Dr. Fink noted.

“Lenalidomide is a feasible and efficacious maintenance option for high-risk CLL after chemoimmunotherapy,” she concluded. The low duration of progression-free survival in the placebo group confirms the prognostic utility of assessing risk based on MRD, which might be useful in future studies, she added.

The German CLL Study Group sponsored the trial. Dr. Fink disclosed ties to Mundipharma, Roche, Celgene, and AbbVie.

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Key clinical point: Lenalidomide maintenance may be an option for patients with chronic lymphocytic leukemia at risk of early progression.

Major finding: Median progression-free survival times were 13 months with placebo but were not reached with lenalidomide, for a hazard ratio of 0.15 (95% confidence interval, 0.06-0.35).

Data source: An interim analysis of 89 partial responders to frontline chemotherapy in the randomized, phase III CLLM1 study.

Disclosures: The German CLL Study Group sponsored the trial. Dr. Fink disclosed ties to Mundipharma, Roche, Celgene, and AbbVie.

Prominent clinical guidelines fall short of conflict of interest standards

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Two recent clinical practice guidelines – one for cholesterol management and another for treatment of chronic hepatitis C – did not meet the Institute of Medicine’s standards for limiting commercial conflicts of interest, according to results of a new analysis.

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Two recent clinical practice guidelines – one for cholesterol management and another for treatment of chronic hepatitis C – did not meet the Institute of Medicine’s standards for limiting commercial conflicts of interest, according to results of a new analysis.

 

Two recent clinical practice guidelines – one for cholesterol management and another for treatment of chronic hepatitis C – did not meet the Institute of Medicine’s standards for limiting commercial conflicts of interest, according to results of a new analysis.

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Key clinical point: Two major clinical practice guidelines did not meet IOM standards for limiting conflicts of interest.

Major finding: In total, 72% of members of the hepatitis C virus guideline committee disclosed conflicts of interest, while 44% of members of the cholesterol guideline committee reported commercial conflicts.

Data source: A retrospective review of the ACA/AHA’s cholesterol guideline and the AASLD/IDSA’s hepatitis C virus guideline.

Disclosures: The research was funded by a grant from the National Institutes of Health. Dr. Pearson reported research grants from foundations and membership dues paid by insurance and pharmaceutical companies. No other disclosures were reported.

Music Therapy Increases Comfort and Reduces Pain in Patients Recovering From Spine Surgery

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Music Therapy Increases Comfort and Reduces Pain in Patients Recovering From Spine Surgery

Take-Home Points

  • Music therapists use patient-preferred live music, increasing neurologic cues that enhance movement—a seminal recovery function in postoperative spine patients.
  • Music therapy is an evidence-based, integrative treatment addressing body, mind, and spirit.
  • Tension release through music therapy can serve as a critical mechanism for building resilience related to pain management.
  • Music therapy and music medicine are distinct forms of clinical practice that focus on mind-body integration in the healing process.
  • Music therapists, board-certified and licensed by the state as recognized healthcare professionals, address pain management, which is an increasing subspecialty in postoperative care.

About 70% of people in the United States experience at least 1 episode of back pain in their lifetime,1 and more than 5 million are temporarily or permanently disabled by spinal disorders.2-4 Some require surgery, which may rectify injury, but pain during recovery is often inevitable, and the road to recovery is not guaranteed to be smooth.5-20

Postoperative spine patients are at major risk for pain management challenges.14,15,18,20 Treatment is primarily pharmacologic and based on the surgical team’s pain management orders. Nursing care consists of monitoring the airway, vital signs, and neurovascular status and having patients rate their pain on a visual analog scale (VAS; 0 = no pain, 10 = worst pain imaginable). Nurses have the challenge of monitoring and continually assessing to make sure patients are achieving the optimal outcomes, particularly during the immediate postoperative period, when pain and anxiety are prominently increased.

Variability in spine surgery outcomes can be explained at least partly on the basis of prognostic psychological factors, including hypochondriasis, hysteria, depression, and poor pain coping strategies (eg, catastrophizing).21 In spine surgery patients, kinesiophobia (fear of moving) is a common component of distress that can impede recuperation.21-23Psychological interventions that assist with the secondary stressors associated with pain and loss during physical recuperation are recommended, with increased attention given to the importance of treating the whole person: body, mind, and spirit.24-29 Conventional pain-alleviating medical interventions can be enhanced with integrative therapies that empower patients to marshal their inner resources during recovery.25-28Music therapy may be particularly suited to this effort, as it is adaptable to the patient’s individual and culturally specific needs.29-33

Rationale for Live Music

Pain is subjective and personal, and warrants an individualized approach to care. There is a body of music medicine research on the use of recorded music in modulating psychological and physiological factors in pain perception.30,32,34-54 This research supports the unique relationship of music to well-being, and the understanding that controlling any of these factors affects the duration, intensity, and quality of that experience.41,43,52

These findings provide incentive for breathing-entrained music therapy interventions, which enhance the relaxation response and release of pain-related tension;32,55-58 empower patients to unlock physical and emotional tension;32,57,58 provide a channel for expression and body movement; and enhance blood flow and/or alleviate pain by activating neurologic areas involved in the experience of pain.59-62Studies have found that physical endurance may be enhanced when movement is rhythmically coordinated with a musical stimulus.63-66 Music may prolong physical endurance by inhibiting psychological feedback associated with physical exertion related to fatigue, which may translate into accelerated recovery periods. When we listen to a rhythmic sound, our brains tend to automatically synchronize, or entrain, to external rhythmic cues that can stimulate increased motor control and coordination.63 Sound can arouse and raise the excitability of spinal motor neurons mediated by auditory-motor neuronal connections on the brain stem and spinal cord level.64-66 Rhythmically organized sounds serve as a neurological function in our capacity to organize predictable timing cues that are apparent in music, and may result in an effective treatment intervention in recovery.63,64

Music Therapy in Recovery From Spine Surgery

In music therapy, music is used within a therapeutic relationship to support or affect change in the patient and the treatment regimen.32,33,56-58 Research on music therapy with patients who are recovering from spine surgery is scant.67-69 Kleiber and Adamek67 studied perceptions of music therapy in 8 adolescents after spinal fusion surgery. In their study, a music therapist provided patients with a postoperative music therapy session focusing on the use of patient-preferred live music for relaxation and expression. Although their qualitative query was based on a therapeutic approach similar to that used in the present study, only 1 session was offered during the recovery period, and follow-up was conducted by survey invitation and telephone. In addition, the number of participants was small, and there was no quantitative measure of pain or other symptoms.

 

 

Another study focused on the effects of listening to music on pain intensity and distress after spine surgery.68 Patients in the study’s music group made their selections from prerecorded classical music and domestic and international popular songs from various genres and listened to their chosen recordings 30 minutes a day. Although the study was not a music therapy study per se, it showed a positive impact of listening to music on anxiety and pain perception in 60 adults who were randomly assigned to the music group or to a non-music control group (n = 30 in each). Differences between the music and control groups’ VAS ratings of anxiety (Ps = .018-.001) and pain (P = .001) were statistically significant.

Different from our study, the aforementioned studies did not include tension release–focused live music offered within a therapeutic relationship. Our 1.5-year pilot study, conducted prior to the present study indicated that music therapy led to increased resilience and recovery mechanisms.58

Methods

Our mixed-methods study design combined standard medical treatment with integrative music therapy interventions based on pain assessments to better understand the effects of music therapy on the recovery of patients after spine surgery.

The Spine Institute of New York within the Department of Orthopedic Surgery at Mount Sinai Beth Israel provides surgical treatment of common spinal cord conditions. Prioritizing patient satisfaction and positive outcomes,27,28 the institute integrates music therapy through the Louis Armstrong Center for Music and Medicine to enhance treatment of pain symptoms.

Patients were recruited by the research team as per the daily surgical schedule, or through referral by the medical team or patient care navigator. Sixty patients (35 female, 25 male) ranging in age from 40 to 55 years underwent anterior, posterior, or anterior-posterior spinal fusion and were enrolled in the study after signing a participation consent form. Minorities, women, and patients with Medicaid and Medicare were included. Patients who received a diagnosis of clinical psychosis or depression prior to spine injury were excluded.

The experimental group received music therapy plus standard care (medical and nursing care with scheduled pharmacologic pain intervention), and a wait-listed control group received standard care only. A randomization chart created by a blinded statistician who did not have access to the patient census determined the intervention–nonintervention schedule. Patients in the music therapy group received one 30-minute music therapy session during an 8-hour period within 72 hours after surgery.

For both groups, measurements were completed before and after the study window. Control patients were offered music therapy after completion of the post-intervention surveys in order to minimize the ethical dilemma of denying potentially helpful pain intervention. For this same reason, both groups were given the option of receiving follow-up music therapy sessions for the duration of their hospitalization.

The research team consisted of 2 licensed, board-certified music therapists. In addition, Master’s-level music therapy interns completing clinical hours as part of the trajectory for board certification served on the research team over the 5-year period 2009 to 2014, and 13 blinded research assistants helped with enrolling and collecting data on patients.

Intervention

Each music therapy session included a warm-up phase of verbal or musical discourse. Next was the treatment phase, which was based on patient need as assessed during warm-up. Treatment options included use of patient-preferred live music that supported tension release/relaxation through incentive-based clinical improvisation, singing, and/or rhythmic drumming or through breathwork and visualization. Psychoeducation about mind–body awareness through the use of breath and imagery was introduced and explained by the therapist at this time.

The improvised music intervention was focused on making salient the natural harmonic tension-resolution cycles that occur in music and that were entrained to the patient’s presentation (respiratory rate, verbal report, clinical presentation). When patient-preferred precomposed songs were used, tension resolution was achieved by sustaining cadence and resolution, also entrained to the patient’s respiratory cycles.32,57,58

After the music therapy intervention, a period of closure or integration was facilitated by the therapist contingent on the patient’s degree of alertness. If awake, the patient was supported in a reflexive process of thoughts, impressions, or issues that may have contributed to the overall experience. If the patient was asleep, the researcher returned within 30 minutes for post-intervention interviewing. Interview information was recorded in a qualitative post-participation survey. To prevent bias, researchers who were not the treating clinicians conducted the surveys.

Outcome Measures

Both primary and secondary outcome measures were collected before and after the intervention. The primary outcome measure was VAS pain ratings, and the secondary outcome measures were scores on the Hospital Anxiety and Depression Scale (HADS), the Tampa Scale for Kinesiophobia (TSK), and the Color Analysis Scale (CAS).

 

 

VAS. With the VAS, images are used to rate pain. The scale has points labeled 0 to 10 and corresponding faces representing progression in pain intensity. The scale is quickly rendered and can be interpreted according to the patient’s recovery phase at time of rendering.

HADS. The HADS70 provides a specific baseline for anxiety and depression as an indicator of how the patient might fare during hospitalization (admission through recovery and discharge).

TSK. The TSK71 provides insight into the patient’s perception of fear-related movement, which is an important factor in this study because of the movement required for rehabilitation. We used a shortened version of the TSK to accommodate the sensitive threshold for pain tolerance and pharmacologic side effects commonly experienced by spine patients.

CAS. The CAS was developed at the Louis Armstrong Center for Music and Medicine to assess comorbidities and dynamic aspects of pain. Through a coloring exercise, patients illustrate their pain experience, which gives tangible form to the abstract experience of pain.

Coding

We collected patients’ demographic data, including age, sex, and diagnoses. Clinical indicators of the preoperative baseline included lifestyle, surgical history, and prior experience with music or other mind–body strategies for self-regulation.

As fundamental to qualitative methodology,72,73 the reported responses to questions were grouped into themes that were peer-tested with members of the research team before and during the coding process.

Appendix.
The Appendix shows the Spine Study: Data Collection Form that was used.

VAS, HADS, and TSK data were tabulated by blinded research assistants and analyzed by a statistician. Patients were identified by number assignment, and their data and personal information were kept confidentially stored.

Statistical Methods

Means and standard deviations were used for continuous variables, and frequencies (percentages) for categorical variables. All outcomes were analyzed on an intent-to-treat basis. Repeated-measures analysis of variance was used to compare changes in outcomes from before to after intervention for the music and control groups. In particular, a statistically significant Group (music vs control) × Time (before vs after intervention) interaction would support the hypothesis that there would be more benefit (less pain) in the music group as a result of the music therapy. For all tests, significance was set at P < .05. SPSS Version 20 (IBM) was used for all statistical analyses. Based on previously found differences in heart rate and mobility,31 we assumed an effect size of 0.71 for the difference between music and control (no music), which would require 32 patients per group to achieve a power of 0.8 with an α of 0.05.

Results

Of the 136 patients who were asked to participate in the study, 76 were not enrolled; the other 60 were equally assigned to either the control group or the music therapy group (n = 30 in each) according to randomization indicated by a blinded statistician (Figure 1).

Figure 1.
All outcomes were measured before and after intervention. Table 1 summarizes the demographic and clinical characteristics of the control and music therapy patients.
Table 1.
There were no statistically significant clinical differences between the groups in terms of any demographic or clinical characteristic. Mean age was 48 years for the control group and 49 years for the music group (P = .58). Sixty-seven percent of control patients and 50% of music patients were female (P = .24). Baseline perspectives with regard to the outcome of their surgery are also included (Ps > .05).

Table 2 lists the pre-intervention and post-intervention comparisons of the main outcomes between groups.

Table 2.
The groups showed significant differences in degree and direction of change in VAS pain ratings (P = .01). VAS pain levels increased slightly in the control group (to 5.87 from 5.20) but decreased by more than 1 point in the music group (to 5.09 from 6.20) (Figure 2).
Figure 2.
The control and music groups did not differ in the rate of change in scores on HADS Anxiety (P = .62), HADS Depression (P = .85), or TSK (P = .93). Both groups had slight increases in HADS Anxiety, comparable decreases in HADS Depression, and minimal changes in TSK.

The emerging themes of the responses are listed in Tables 3 and 4 and are explained here:

Relationship with music was coded for significance and included reports of music as a resource accessed for stimulation and/or relaxation through listening; direct involvement with instrument playing; and history of music training. 

Table 3.
This area was left broad because we think any of the listed criteria would define music as an inner resource for enhanced coping.

Perceptions of surgical outcome in patients’ responses were coded across 3 themes: (1) optimistic (belief and hope in returning to original baseline of functionality), (2) indifferent (neither hopeful nor cynical about results of surgery), and (3) pessimistic (belief that nothing will restore the quality of life that existed before the spinal condition).

The CAS helped us better understand the diversity and complexity of the pain experience.

Table 4.
With use of this nonverbal form of expression, patients’ reports of postoperative pain often included pain that otherwise had been perceived by patients as unrelated and therefore underreported.

 

 

Discussion

Our hospital has the unique capability of providing music therapy to postoperative and other hospitalized patients. In this study, we compared the impact of a structured postoperative music therapy program on spine patients relative to control patients who did not receive music therapy after spine surgery.

We found a significant benefit in VAS pain levels (>1 point) but no statistically significant differences in HADS Anxiety, HADS Depression, or TSK scores. Although a 2-point difference is usually considered clinically significant, the degree of change in the music group is notable for having been achieved by nonpharmacologic means with scant chance of adverse effects. We suspect the lack of significant change in HADS Anxiety, HADS Depression, and TSK scores is attributable to the narrow study window. Given the observational data from our pilot study58 and ongoing results with spine patients,32 it seems clear that both mood state and resilience in coping are enhanced through an ongoing relationship with music therapy.

The study of a population as vulnerable as patients recovering from spine surgery raises many issues for providers and researchers. Although it is worthwhile to determine the efficacy of integrative modalities in serving these patients, the request for participation in a protocol at such a vulnerable time was often resisted. During our pilot work, it became clear that the ability of potential subjects to comprehend and complete protocol surveys was impacted by adverse effects, including sedation drowsiness; respiratory depression; nausea and vomiting; pruritus; and urinary retention caused by the medications used for postoperative pain management. Consequently, after piloting 5 cases before the main study, we extended the enrollment window to 72 hours.

Other unforeseen intrinsic or external obstacles were identified: Patient-related issues—including availability, level of interest in participation, and inability to participate because of the medication adverse effects mentioned.

Staff investment/education—addressed over the first 3 study years with several in-services, starting with the surgical team and continuing with nursing and support staff in various combinations. These meetings led to the creation of an Institutional Review Board (IRB) approved educational sheet for inclusion in the information packet given to surgical patients on registration.

Programming interruptions—caused by the convergence of several unanticipated factors, including a delay in expedited review of the IRB renewal during the year of Hurricane Sandy and an interruption in the spine team’s service for administrative and program modification.

Conclusion

Music therapy interventions (eg, use of patient-preferred live music) offered within a therapeutic relationship favorably affected pain perceptions in patients recovering from spine surgery. This effect was achieved through several therapeutic entry points, including support of expression and opportunities for emotional catharsis.

At the core of music therapy’s efficacy is individualized treatment, through which patients are supported in their recovery of “self.” Measurable benefits—including increased comfort; reduced pain; improved gait; increased range of motion, endurance, and ability to relax; and empowerment to actively participate in one’s own care through daily activities imbued with an enhanced sense of agency—are of cardinal importance, as they may lead to quicker recovery perceptions and enhanced quality of life.

Am J Orthop. 2017;46(1):E13-E22. Copyright Frontline Medical Communications Inc. 2017. All rights reserved.

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71. Woby SR, Roach NK, Urmston M, Watson PJ. Psychometric properties of the TSK-11: a shortened version of the Tampa Scale for Kinesiophobia. Pain. 2005;117(1-2):137-144.

72. Humrichouse J, Chmielewski M, McDade-Montez EA, Watson D. Affect assessment through self-report methods. In: Rottenberg J, Johnson SL, eds. Emotion and Psychopathology: Bridging Affective and Clinical Science. Washington, DC: American Psychological Association; 2007:13-34.

73. Lincoln YS, Guba EG. Naturalistic Inquiry. Beverly Hills, CA: Sage; 1985.

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Author and Disclosure Information

Authors’ Disclosure Statement: This research was supported independently and internally by the Louis Armstrong Center for Music and Medicine. The authors report no actual or potential conflict of interest in relation to this article. The views expressed in this article are the authors’ and may not represent the official views of Mount Sinai Beth Israel.

Acknowledgments: For invaluable involvement and support during the study the authors would like to thank Peter D. McCann, MD, Daphne Ridley, RN, Marissa Petsakos, Brandee Raimer, Jessica Hyde, MA, MT-BC, Clarissa Lacson, MA, MT-BC, Erin Bolding, MT-BC, Crista Orefice, MA, MT-BC, Brenda Buchanen, MA, MT-BC, Soniya Brar, MA, MT-BC, Thomas Biglin, MA, MT-BC, and Emily Autrey, BM.

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The American Journal of Orthopedics - 46(1)
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E13-E22
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Author and Disclosure Information

Authors’ Disclosure Statement: This research was supported independently and internally by the Louis Armstrong Center for Music and Medicine. The authors report no actual or potential conflict of interest in relation to this article. The views expressed in this article are the authors’ and may not represent the official views of Mount Sinai Beth Israel.

Acknowledgments: For invaluable involvement and support during the study the authors would like to thank Peter D. McCann, MD, Daphne Ridley, RN, Marissa Petsakos, Brandee Raimer, Jessica Hyde, MA, MT-BC, Clarissa Lacson, MA, MT-BC, Erin Bolding, MT-BC, Crista Orefice, MA, MT-BC, Brenda Buchanen, MA, MT-BC, Soniya Brar, MA, MT-BC, Thomas Biglin, MA, MT-BC, and Emily Autrey, BM.

Author and Disclosure Information

Authors’ Disclosure Statement: This research was supported independently and internally by the Louis Armstrong Center for Music and Medicine. The authors report no actual or potential conflict of interest in relation to this article. The views expressed in this article are the authors’ and may not represent the official views of Mount Sinai Beth Israel.

Acknowledgments: For invaluable involvement and support during the study the authors would like to thank Peter D. McCann, MD, Daphne Ridley, RN, Marissa Petsakos, Brandee Raimer, Jessica Hyde, MA, MT-BC, Clarissa Lacson, MA, MT-BC, Erin Bolding, MT-BC, Crista Orefice, MA, MT-BC, Brenda Buchanen, MA, MT-BC, Soniya Brar, MA, MT-BC, Thomas Biglin, MA, MT-BC, and Emily Autrey, BM.

Article PDF
Article PDF

Take-Home Points

  • Music therapists use patient-preferred live music, increasing neurologic cues that enhance movement—a seminal recovery function in postoperative spine patients.
  • Music therapy is an evidence-based, integrative treatment addressing body, mind, and spirit.
  • Tension release through music therapy can serve as a critical mechanism for building resilience related to pain management.
  • Music therapy and music medicine are distinct forms of clinical practice that focus on mind-body integration in the healing process.
  • Music therapists, board-certified and licensed by the state as recognized healthcare professionals, address pain management, which is an increasing subspecialty in postoperative care.

About 70% of people in the United States experience at least 1 episode of back pain in their lifetime,1 and more than 5 million are temporarily or permanently disabled by spinal disorders.2-4 Some require surgery, which may rectify injury, but pain during recovery is often inevitable, and the road to recovery is not guaranteed to be smooth.5-20

Postoperative spine patients are at major risk for pain management challenges.14,15,18,20 Treatment is primarily pharmacologic and based on the surgical team’s pain management orders. Nursing care consists of monitoring the airway, vital signs, and neurovascular status and having patients rate their pain on a visual analog scale (VAS; 0 = no pain, 10 = worst pain imaginable). Nurses have the challenge of monitoring and continually assessing to make sure patients are achieving the optimal outcomes, particularly during the immediate postoperative period, when pain and anxiety are prominently increased.

Variability in spine surgery outcomes can be explained at least partly on the basis of prognostic psychological factors, including hypochondriasis, hysteria, depression, and poor pain coping strategies (eg, catastrophizing).21 In spine surgery patients, kinesiophobia (fear of moving) is a common component of distress that can impede recuperation.21-23Psychological interventions that assist with the secondary stressors associated with pain and loss during physical recuperation are recommended, with increased attention given to the importance of treating the whole person: body, mind, and spirit.24-29 Conventional pain-alleviating medical interventions can be enhanced with integrative therapies that empower patients to marshal their inner resources during recovery.25-28Music therapy may be particularly suited to this effort, as it is adaptable to the patient’s individual and culturally specific needs.29-33

Rationale for Live Music

Pain is subjective and personal, and warrants an individualized approach to care. There is a body of music medicine research on the use of recorded music in modulating psychological and physiological factors in pain perception.30,32,34-54 This research supports the unique relationship of music to well-being, and the understanding that controlling any of these factors affects the duration, intensity, and quality of that experience.41,43,52

These findings provide incentive for breathing-entrained music therapy interventions, which enhance the relaxation response and release of pain-related tension;32,55-58 empower patients to unlock physical and emotional tension;32,57,58 provide a channel for expression and body movement; and enhance blood flow and/or alleviate pain by activating neurologic areas involved in the experience of pain.59-62Studies have found that physical endurance may be enhanced when movement is rhythmically coordinated with a musical stimulus.63-66 Music may prolong physical endurance by inhibiting psychological feedback associated with physical exertion related to fatigue, which may translate into accelerated recovery periods. When we listen to a rhythmic sound, our brains tend to automatically synchronize, or entrain, to external rhythmic cues that can stimulate increased motor control and coordination.63 Sound can arouse and raise the excitability of spinal motor neurons mediated by auditory-motor neuronal connections on the brain stem and spinal cord level.64-66 Rhythmically organized sounds serve as a neurological function in our capacity to organize predictable timing cues that are apparent in music, and may result in an effective treatment intervention in recovery.63,64

Music Therapy in Recovery From Spine Surgery

In music therapy, music is used within a therapeutic relationship to support or affect change in the patient and the treatment regimen.32,33,56-58 Research on music therapy with patients who are recovering from spine surgery is scant.67-69 Kleiber and Adamek67 studied perceptions of music therapy in 8 adolescents after spinal fusion surgery. In their study, a music therapist provided patients with a postoperative music therapy session focusing on the use of patient-preferred live music for relaxation and expression. Although their qualitative query was based on a therapeutic approach similar to that used in the present study, only 1 session was offered during the recovery period, and follow-up was conducted by survey invitation and telephone. In addition, the number of participants was small, and there was no quantitative measure of pain or other symptoms.

 

 

Another study focused on the effects of listening to music on pain intensity and distress after spine surgery.68 Patients in the study’s music group made their selections from prerecorded classical music and domestic and international popular songs from various genres and listened to their chosen recordings 30 minutes a day. Although the study was not a music therapy study per se, it showed a positive impact of listening to music on anxiety and pain perception in 60 adults who were randomly assigned to the music group or to a non-music control group (n = 30 in each). Differences between the music and control groups’ VAS ratings of anxiety (Ps = .018-.001) and pain (P = .001) were statistically significant.

Different from our study, the aforementioned studies did not include tension release–focused live music offered within a therapeutic relationship. Our 1.5-year pilot study, conducted prior to the present study indicated that music therapy led to increased resilience and recovery mechanisms.58

Methods

Our mixed-methods study design combined standard medical treatment with integrative music therapy interventions based on pain assessments to better understand the effects of music therapy on the recovery of patients after spine surgery.

The Spine Institute of New York within the Department of Orthopedic Surgery at Mount Sinai Beth Israel provides surgical treatment of common spinal cord conditions. Prioritizing patient satisfaction and positive outcomes,27,28 the institute integrates music therapy through the Louis Armstrong Center for Music and Medicine to enhance treatment of pain symptoms.

Patients were recruited by the research team as per the daily surgical schedule, or through referral by the medical team or patient care navigator. Sixty patients (35 female, 25 male) ranging in age from 40 to 55 years underwent anterior, posterior, or anterior-posterior spinal fusion and were enrolled in the study after signing a participation consent form. Minorities, women, and patients with Medicaid and Medicare were included. Patients who received a diagnosis of clinical psychosis or depression prior to spine injury were excluded.

The experimental group received music therapy plus standard care (medical and nursing care with scheduled pharmacologic pain intervention), and a wait-listed control group received standard care only. A randomization chart created by a blinded statistician who did not have access to the patient census determined the intervention–nonintervention schedule. Patients in the music therapy group received one 30-minute music therapy session during an 8-hour period within 72 hours after surgery.

For both groups, measurements were completed before and after the study window. Control patients were offered music therapy after completion of the post-intervention surveys in order to minimize the ethical dilemma of denying potentially helpful pain intervention. For this same reason, both groups were given the option of receiving follow-up music therapy sessions for the duration of their hospitalization.

The research team consisted of 2 licensed, board-certified music therapists. In addition, Master’s-level music therapy interns completing clinical hours as part of the trajectory for board certification served on the research team over the 5-year period 2009 to 2014, and 13 blinded research assistants helped with enrolling and collecting data on patients.

Intervention

Each music therapy session included a warm-up phase of verbal or musical discourse. Next was the treatment phase, which was based on patient need as assessed during warm-up. Treatment options included use of patient-preferred live music that supported tension release/relaxation through incentive-based clinical improvisation, singing, and/or rhythmic drumming or through breathwork and visualization. Psychoeducation about mind–body awareness through the use of breath and imagery was introduced and explained by the therapist at this time.

The improvised music intervention was focused on making salient the natural harmonic tension-resolution cycles that occur in music and that were entrained to the patient’s presentation (respiratory rate, verbal report, clinical presentation). When patient-preferred precomposed songs were used, tension resolution was achieved by sustaining cadence and resolution, also entrained to the patient’s respiratory cycles.32,57,58

After the music therapy intervention, a period of closure or integration was facilitated by the therapist contingent on the patient’s degree of alertness. If awake, the patient was supported in a reflexive process of thoughts, impressions, or issues that may have contributed to the overall experience. If the patient was asleep, the researcher returned within 30 minutes for post-intervention interviewing. Interview information was recorded in a qualitative post-participation survey. To prevent bias, researchers who were not the treating clinicians conducted the surveys.

Outcome Measures

Both primary and secondary outcome measures were collected before and after the intervention. The primary outcome measure was VAS pain ratings, and the secondary outcome measures were scores on the Hospital Anxiety and Depression Scale (HADS), the Tampa Scale for Kinesiophobia (TSK), and the Color Analysis Scale (CAS).

 

 

VAS. With the VAS, images are used to rate pain. The scale has points labeled 0 to 10 and corresponding faces representing progression in pain intensity. The scale is quickly rendered and can be interpreted according to the patient’s recovery phase at time of rendering.

HADS. The HADS70 provides a specific baseline for anxiety and depression as an indicator of how the patient might fare during hospitalization (admission through recovery and discharge).

TSK. The TSK71 provides insight into the patient’s perception of fear-related movement, which is an important factor in this study because of the movement required for rehabilitation. We used a shortened version of the TSK to accommodate the sensitive threshold for pain tolerance and pharmacologic side effects commonly experienced by spine patients.

CAS. The CAS was developed at the Louis Armstrong Center for Music and Medicine to assess comorbidities and dynamic aspects of pain. Through a coloring exercise, patients illustrate their pain experience, which gives tangible form to the abstract experience of pain.

Coding

We collected patients’ demographic data, including age, sex, and diagnoses. Clinical indicators of the preoperative baseline included lifestyle, surgical history, and prior experience with music or other mind–body strategies for self-regulation.

As fundamental to qualitative methodology,72,73 the reported responses to questions were grouped into themes that were peer-tested with members of the research team before and during the coding process.

Appendix.
The Appendix shows the Spine Study: Data Collection Form that was used.

VAS, HADS, and TSK data were tabulated by blinded research assistants and analyzed by a statistician. Patients were identified by number assignment, and their data and personal information were kept confidentially stored.

Statistical Methods

Means and standard deviations were used for continuous variables, and frequencies (percentages) for categorical variables. All outcomes were analyzed on an intent-to-treat basis. Repeated-measures analysis of variance was used to compare changes in outcomes from before to after intervention for the music and control groups. In particular, a statistically significant Group (music vs control) × Time (before vs after intervention) interaction would support the hypothesis that there would be more benefit (less pain) in the music group as a result of the music therapy. For all tests, significance was set at P < .05. SPSS Version 20 (IBM) was used for all statistical analyses. Based on previously found differences in heart rate and mobility,31 we assumed an effect size of 0.71 for the difference between music and control (no music), which would require 32 patients per group to achieve a power of 0.8 with an α of 0.05.

Results

Of the 136 patients who were asked to participate in the study, 76 were not enrolled; the other 60 were equally assigned to either the control group or the music therapy group (n = 30 in each) according to randomization indicated by a blinded statistician (Figure 1).

Figure 1.
All outcomes were measured before and after intervention. Table 1 summarizes the demographic and clinical characteristics of the control and music therapy patients.
Table 1.
There were no statistically significant clinical differences between the groups in terms of any demographic or clinical characteristic. Mean age was 48 years for the control group and 49 years for the music group (P = .58). Sixty-seven percent of control patients and 50% of music patients were female (P = .24). Baseline perspectives with regard to the outcome of their surgery are also included (Ps > .05).

Table 2 lists the pre-intervention and post-intervention comparisons of the main outcomes between groups.

Table 2.
The groups showed significant differences in degree and direction of change in VAS pain ratings (P = .01). VAS pain levels increased slightly in the control group (to 5.87 from 5.20) but decreased by more than 1 point in the music group (to 5.09 from 6.20) (Figure 2).
Figure 2.
The control and music groups did not differ in the rate of change in scores on HADS Anxiety (P = .62), HADS Depression (P = .85), or TSK (P = .93). Both groups had slight increases in HADS Anxiety, comparable decreases in HADS Depression, and minimal changes in TSK.

The emerging themes of the responses are listed in Tables 3 and 4 and are explained here:

Relationship with music was coded for significance and included reports of music as a resource accessed for stimulation and/or relaxation through listening; direct involvement with instrument playing; and history of music training. 

Table 3.
This area was left broad because we think any of the listed criteria would define music as an inner resource for enhanced coping.

Perceptions of surgical outcome in patients’ responses were coded across 3 themes: (1) optimistic (belief and hope in returning to original baseline of functionality), (2) indifferent (neither hopeful nor cynical about results of surgery), and (3) pessimistic (belief that nothing will restore the quality of life that existed before the spinal condition).

The CAS helped us better understand the diversity and complexity of the pain experience.

Table 4.
With use of this nonverbal form of expression, patients’ reports of postoperative pain often included pain that otherwise had been perceived by patients as unrelated and therefore underreported.

 

 

Discussion

Our hospital has the unique capability of providing music therapy to postoperative and other hospitalized patients. In this study, we compared the impact of a structured postoperative music therapy program on spine patients relative to control patients who did not receive music therapy after spine surgery.

We found a significant benefit in VAS pain levels (>1 point) but no statistically significant differences in HADS Anxiety, HADS Depression, or TSK scores. Although a 2-point difference is usually considered clinically significant, the degree of change in the music group is notable for having been achieved by nonpharmacologic means with scant chance of adverse effects. We suspect the lack of significant change in HADS Anxiety, HADS Depression, and TSK scores is attributable to the narrow study window. Given the observational data from our pilot study58 and ongoing results with spine patients,32 it seems clear that both mood state and resilience in coping are enhanced through an ongoing relationship with music therapy.

The study of a population as vulnerable as patients recovering from spine surgery raises many issues for providers and researchers. Although it is worthwhile to determine the efficacy of integrative modalities in serving these patients, the request for participation in a protocol at such a vulnerable time was often resisted. During our pilot work, it became clear that the ability of potential subjects to comprehend and complete protocol surveys was impacted by adverse effects, including sedation drowsiness; respiratory depression; nausea and vomiting; pruritus; and urinary retention caused by the medications used for postoperative pain management. Consequently, after piloting 5 cases before the main study, we extended the enrollment window to 72 hours.

Other unforeseen intrinsic or external obstacles were identified: Patient-related issues—including availability, level of interest in participation, and inability to participate because of the medication adverse effects mentioned.

Staff investment/education—addressed over the first 3 study years with several in-services, starting with the surgical team and continuing with nursing and support staff in various combinations. These meetings led to the creation of an Institutional Review Board (IRB) approved educational sheet for inclusion in the information packet given to surgical patients on registration.

Programming interruptions—caused by the convergence of several unanticipated factors, including a delay in expedited review of the IRB renewal during the year of Hurricane Sandy and an interruption in the spine team’s service for administrative and program modification.

Conclusion

Music therapy interventions (eg, use of patient-preferred live music) offered within a therapeutic relationship favorably affected pain perceptions in patients recovering from spine surgery. This effect was achieved through several therapeutic entry points, including support of expression and opportunities for emotional catharsis.

At the core of music therapy’s efficacy is individualized treatment, through which patients are supported in their recovery of “self.” Measurable benefits—including increased comfort; reduced pain; improved gait; increased range of motion, endurance, and ability to relax; and empowerment to actively participate in one’s own care through daily activities imbued with an enhanced sense of agency—are of cardinal importance, as they may lead to quicker recovery perceptions and enhanced quality of life.

Am J Orthop. 2017;46(1):E13-E22. Copyright Frontline Medical Communications Inc. 2017. All rights reserved.

Take-Home Points

  • Music therapists use patient-preferred live music, increasing neurologic cues that enhance movement—a seminal recovery function in postoperative spine patients.
  • Music therapy is an evidence-based, integrative treatment addressing body, mind, and spirit.
  • Tension release through music therapy can serve as a critical mechanism for building resilience related to pain management.
  • Music therapy and music medicine are distinct forms of clinical practice that focus on mind-body integration in the healing process.
  • Music therapists, board-certified and licensed by the state as recognized healthcare professionals, address pain management, which is an increasing subspecialty in postoperative care.

About 70% of people in the United States experience at least 1 episode of back pain in their lifetime,1 and more than 5 million are temporarily or permanently disabled by spinal disorders.2-4 Some require surgery, which may rectify injury, but pain during recovery is often inevitable, and the road to recovery is not guaranteed to be smooth.5-20

Postoperative spine patients are at major risk for pain management challenges.14,15,18,20 Treatment is primarily pharmacologic and based on the surgical team’s pain management orders. Nursing care consists of monitoring the airway, vital signs, and neurovascular status and having patients rate their pain on a visual analog scale (VAS; 0 = no pain, 10 = worst pain imaginable). Nurses have the challenge of monitoring and continually assessing to make sure patients are achieving the optimal outcomes, particularly during the immediate postoperative period, when pain and anxiety are prominently increased.

Variability in spine surgery outcomes can be explained at least partly on the basis of prognostic psychological factors, including hypochondriasis, hysteria, depression, and poor pain coping strategies (eg, catastrophizing).21 In spine surgery patients, kinesiophobia (fear of moving) is a common component of distress that can impede recuperation.21-23Psychological interventions that assist with the secondary stressors associated with pain and loss during physical recuperation are recommended, with increased attention given to the importance of treating the whole person: body, mind, and spirit.24-29 Conventional pain-alleviating medical interventions can be enhanced with integrative therapies that empower patients to marshal their inner resources during recovery.25-28Music therapy may be particularly suited to this effort, as it is adaptable to the patient’s individual and culturally specific needs.29-33

Rationale for Live Music

Pain is subjective and personal, and warrants an individualized approach to care. There is a body of music medicine research on the use of recorded music in modulating psychological and physiological factors in pain perception.30,32,34-54 This research supports the unique relationship of music to well-being, and the understanding that controlling any of these factors affects the duration, intensity, and quality of that experience.41,43,52

These findings provide incentive for breathing-entrained music therapy interventions, which enhance the relaxation response and release of pain-related tension;32,55-58 empower patients to unlock physical and emotional tension;32,57,58 provide a channel for expression and body movement; and enhance blood flow and/or alleviate pain by activating neurologic areas involved in the experience of pain.59-62Studies have found that physical endurance may be enhanced when movement is rhythmically coordinated with a musical stimulus.63-66 Music may prolong physical endurance by inhibiting psychological feedback associated with physical exertion related to fatigue, which may translate into accelerated recovery periods. When we listen to a rhythmic sound, our brains tend to automatically synchronize, or entrain, to external rhythmic cues that can stimulate increased motor control and coordination.63 Sound can arouse and raise the excitability of spinal motor neurons mediated by auditory-motor neuronal connections on the brain stem and spinal cord level.64-66 Rhythmically organized sounds serve as a neurological function in our capacity to organize predictable timing cues that are apparent in music, and may result in an effective treatment intervention in recovery.63,64

Music Therapy in Recovery From Spine Surgery

In music therapy, music is used within a therapeutic relationship to support or affect change in the patient and the treatment regimen.32,33,56-58 Research on music therapy with patients who are recovering from spine surgery is scant.67-69 Kleiber and Adamek67 studied perceptions of music therapy in 8 adolescents after spinal fusion surgery. In their study, a music therapist provided patients with a postoperative music therapy session focusing on the use of patient-preferred live music for relaxation and expression. Although their qualitative query was based on a therapeutic approach similar to that used in the present study, only 1 session was offered during the recovery period, and follow-up was conducted by survey invitation and telephone. In addition, the number of participants was small, and there was no quantitative measure of pain or other symptoms.

 

 

Another study focused on the effects of listening to music on pain intensity and distress after spine surgery.68 Patients in the study’s music group made their selections from prerecorded classical music and domestic and international popular songs from various genres and listened to their chosen recordings 30 minutes a day. Although the study was not a music therapy study per se, it showed a positive impact of listening to music on anxiety and pain perception in 60 adults who were randomly assigned to the music group or to a non-music control group (n = 30 in each). Differences between the music and control groups’ VAS ratings of anxiety (Ps = .018-.001) and pain (P = .001) were statistically significant.

Different from our study, the aforementioned studies did not include tension release–focused live music offered within a therapeutic relationship. Our 1.5-year pilot study, conducted prior to the present study indicated that music therapy led to increased resilience and recovery mechanisms.58

Methods

Our mixed-methods study design combined standard medical treatment with integrative music therapy interventions based on pain assessments to better understand the effects of music therapy on the recovery of patients after spine surgery.

The Spine Institute of New York within the Department of Orthopedic Surgery at Mount Sinai Beth Israel provides surgical treatment of common spinal cord conditions. Prioritizing patient satisfaction and positive outcomes,27,28 the institute integrates music therapy through the Louis Armstrong Center for Music and Medicine to enhance treatment of pain symptoms.

Patients were recruited by the research team as per the daily surgical schedule, or through referral by the medical team or patient care navigator. Sixty patients (35 female, 25 male) ranging in age from 40 to 55 years underwent anterior, posterior, or anterior-posterior spinal fusion and were enrolled in the study after signing a participation consent form. Minorities, women, and patients with Medicaid and Medicare were included. Patients who received a diagnosis of clinical psychosis or depression prior to spine injury were excluded.

The experimental group received music therapy plus standard care (medical and nursing care with scheduled pharmacologic pain intervention), and a wait-listed control group received standard care only. A randomization chart created by a blinded statistician who did not have access to the patient census determined the intervention–nonintervention schedule. Patients in the music therapy group received one 30-minute music therapy session during an 8-hour period within 72 hours after surgery.

For both groups, measurements were completed before and after the study window. Control patients were offered music therapy after completion of the post-intervention surveys in order to minimize the ethical dilemma of denying potentially helpful pain intervention. For this same reason, both groups were given the option of receiving follow-up music therapy sessions for the duration of their hospitalization.

The research team consisted of 2 licensed, board-certified music therapists. In addition, Master’s-level music therapy interns completing clinical hours as part of the trajectory for board certification served on the research team over the 5-year period 2009 to 2014, and 13 blinded research assistants helped with enrolling and collecting data on patients.

Intervention

Each music therapy session included a warm-up phase of verbal or musical discourse. Next was the treatment phase, which was based on patient need as assessed during warm-up. Treatment options included use of patient-preferred live music that supported tension release/relaxation through incentive-based clinical improvisation, singing, and/or rhythmic drumming or through breathwork and visualization. Psychoeducation about mind–body awareness through the use of breath and imagery was introduced and explained by the therapist at this time.

The improvised music intervention was focused on making salient the natural harmonic tension-resolution cycles that occur in music and that were entrained to the patient’s presentation (respiratory rate, verbal report, clinical presentation). When patient-preferred precomposed songs were used, tension resolution was achieved by sustaining cadence and resolution, also entrained to the patient’s respiratory cycles.32,57,58

After the music therapy intervention, a period of closure or integration was facilitated by the therapist contingent on the patient’s degree of alertness. If awake, the patient was supported in a reflexive process of thoughts, impressions, or issues that may have contributed to the overall experience. If the patient was asleep, the researcher returned within 30 minutes for post-intervention interviewing. Interview information was recorded in a qualitative post-participation survey. To prevent bias, researchers who were not the treating clinicians conducted the surveys.

Outcome Measures

Both primary and secondary outcome measures were collected before and after the intervention. The primary outcome measure was VAS pain ratings, and the secondary outcome measures were scores on the Hospital Anxiety and Depression Scale (HADS), the Tampa Scale for Kinesiophobia (TSK), and the Color Analysis Scale (CAS).

 

 

VAS. With the VAS, images are used to rate pain. The scale has points labeled 0 to 10 and corresponding faces representing progression in pain intensity. The scale is quickly rendered and can be interpreted according to the patient’s recovery phase at time of rendering.

HADS. The HADS70 provides a specific baseline for anxiety and depression as an indicator of how the patient might fare during hospitalization (admission through recovery and discharge).

TSK. The TSK71 provides insight into the patient’s perception of fear-related movement, which is an important factor in this study because of the movement required for rehabilitation. We used a shortened version of the TSK to accommodate the sensitive threshold for pain tolerance and pharmacologic side effects commonly experienced by spine patients.

CAS. The CAS was developed at the Louis Armstrong Center for Music and Medicine to assess comorbidities and dynamic aspects of pain. Through a coloring exercise, patients illustrate their pain experience, which gives tangible form to the abstract experience of pain.

Coding

We collected patients’ demographic data, including age, sex, and diagnoses. Clinical indicators of the preoperative baseline included lifestyle, surgical history, and prior experience with music or other mind–body strategies for self-regulation.

As fundamental to qualitative methodology,72,73 the reported responses to questions were grouped into themes that were peer-tested with members of the research team before and during the coding process.

Appendix.
The Appendix shows the Spine Study: Data Collection Form that was used.

VAS, HADS, and TSK data were tabulated by blinded research assistants and analyzed by a statistician. Patients were identified by number assignment, and their data and personal information were kept confidentially stored.

Statistical Methods

Means and standard deviations were used for continuous variables, and frequencies (percentages) for categorical variables. All outcomes were analyzed on an intent-to-treat basis. Repeated-measures analysis of variance was used to compare changes in outcomes from before to after intervention for the music and control groups. In particular, a statistically significant Group (music vs control) × Time (before vs after intervention) interaction would support the hypothesis that there would be more benefit (less pain) in the music group as a result of the music therapy. For all tests, significance was set at P < .05. SPSS Version 20 (IBM) was used for all statistical analyses. Based on previously found differences in heart rate and mobility,31 we assumed an effect size of 0.71 for the difference between music and control (no music), which would require 32 patients per group to achieve a power of 0.8 with an α of 0.05.

Results

Of the 136 patients who were asked to participate in the study, 76 were not enrolled; the other 60 were equally assigned to either the control group or the music therapy group (n = 30 in each) according to randomization indicated by a blinded statistician (Figure 1).

Figure 1.
All outcomes were measured before and after intervention. Table 1 summarizes the demographic and clinical characteristics of the control and music therapy patients.
Table 1.
There were no statistically significant clinical differences between the groups in terms of any demographic or clinical characteristic. Mean age was 48 years for the control group and 49 years for the music group (P = .58). Sixty-seven percent of control patients and 50% of music patients were female (P = .24). Baseline perspectives with regard to the outcome of their surgery are also included (Ps > .05).

Table 2 lists the pre-intervention and post-intervention comparisons of the main outcomes between groups.

Table 2.
The groups showed significant differences in degree and direction of change in VAS pain ratings (P = .01). VAS pain levels increased slightly in the control group (to 5.87 from 5.20) but decreased by more than 1 point in the music group (to 5.09 from 6.20) (Figure 2).
Figure 2.
The control and music groups did not differ in the rate of change in scores on HADS Anxiety (P = .62), HADS Depression (P = .85), or TSK (P = .93). Both groups had slight increases in HADS Anxiety, comparable decreases in HADS Depression, and minimal changes in TSK.

The emerging themes of the responses are listed in Tables 3 and 4 and are explained here:

Relationship with music was coded for significance and included reports of music as a resource accessed for stimulation and/or relaxation through listening; direct involvement with instrument playing; and history of music training. 

Table 3.
This area was left broad because we think any of the listed criteria would define music as an inner resource for enhanced coping.

Perceptions of surgical outcome in patients’ responses were coded across 3 themes: (1) optimistic (belief and hope in returning to original baseline of functionality), (2) indifferent (neither hopeful nor cynical about results of surgery), and (3) pessimistic (belief that nothing will restore the quality of life that existed before the spinal condition).

The CAS helped us better understand the diversity and complexity of the pain experience.

Table 4.
With use of this nonverbal form of expression, patients’ reports of postoperative pain often included pain that otherwise had been perceived by patients as unrelated and therefore underreported.

 

 

Discussion

Our hospital has the unique capability of providing music therapy to postoperative and other hospitalized patients. In this study, we compared the impact of a structured postoperative music therapy program on spine patients relative to control patients who did not receive music therapy after spine surgery.

We found a significant benefit in VAS pain levels (>1 point) but no statistically significant differences in HADS Anxiety, HADS Depression, or TSK scores. Although a 2-point difference is usually considered clinically significant, the degree of change in the music group is notable for having been achieved by nonpharmacologic means with scant chance of adverse effects. We suspect the lack of significant change in HADS Anxiety, HADS Depression, and TSK scores is attributable to the narrow study window. Given the observational data from our pilot study58 and ongoing results with spine patients,32 it seems clear that both mood state and resilience in coping are enhanced through an ongoing relationship with music therapy.

The study of a population as vulnerable as patients recovering from spine surgery raises many issues for providers and researchers. Although it is worthwhile to determine the efficacy of integrative modalities in serving these patients, the request for participation in a protocol at such a vulnerable time was often resisted. During our pilot work, it became clear that the ability of potential subjects to comprehend and complete protocol surveys was impacted by adverse effects, including sedation drowsiness; respiratory depression; nausea and vomiting; pruritus; and urinary retention caused by the medications used for postoperative pain management. Consequently, after piloting 5 cases before the main study, we extended the enrollment window to 72 hours.

Other unforeseen intrinsic or external obstacles were identified: Patient-related issues—including availability, level of interest in participation, and inability to participate because of the medication adverse effects mentioned.

Staff investment/education—addressed over the first 3 study years with several in-services, starting with the surgical team and continuing with nursing and support staff in various combinations. These meetings led to the creation of an Institutional Review Board (IRB) approved educational sheet for inclusion in the information packet given to surgical patients on registration.

Programming interruptions—caused by the convergence of several unanticipated factors, including a delay in expedited review of the IRB renewal during the year of Hurricane Sandy and an interruption in the spine team’s service for administrative and program modification.

Conclusion

Music therapy interventions (eg, use of patient-preferred live music) offered within a therapeutic relationship favorably affected pain perceptions in patients recovering from spine surgery. This effect was achieved through several therapeutic entry points, including support of expression and opportunities for emotional catharsis.

At the core of music therapy’s efficacy is individualized treatment, through which patients are supported in their recovery of “self.” Measurable benefits—including increased comfort; reduced pain; improved gait; increased range of motion, endurance, and ability to relax; and empowerment to actively participate in one’s own care through daily activities imbued with an enhanced sense of agency—are of cardinal importance, as they may lead to quicker recovery perceptions and enhanced quality of life.

Am J Orthop. 2017;46(1):E13-E22. Copyright Frontline Medical Communications Inc. 2017. All rights reserved.

References

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2. Aebi M. The adult scoliosis. Eur Spine J. 2005;14(10):925-948.

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4. Cavanaugh JM, Lu Y, Chen C, Kallakuri S. Pain generation in lumbar and cervical facet joints. J Bone Joint Surg Am. 2006;88(suppl 2):63-67.

5. Hart RA, Prendergast MA. Spine surgery for lumbar degenerative disease in elderly and osteoporotic patients. Instr Course Lect. 2007;56:257-272.

6. Boswell MV, Trescot AM, Datta S, et al; American Society of Interventional Pain Physicians. Interventional techniques: evidence-based practice guidelines in the management of chronic spinal pain. Pain Physician. 2007;10(1):7-111.

7. Weinstein JN, Lurie JD, Tosteson TD, et al. Surgical versus nonsurgical treatment for lumbar degenerative spondylolisthesis. N Engl J Med. 2007;356(22):2257-2270.

8. Weinstein JN, Tosteson TD, Lurie JD, et al. Surgical vs nonoperative treatment for lumbar disk herniation: the Spine Patient Outcomes Research Trial (SPORT): A randomized trial. JAMA. 2006;296(20):2441-2450.

9. Malmivaara A, Slätis P, Heliövaara M, et al; Finnish Lumbar Spinal Research Group. Surgical or nonoperative treatment for lumbar spinal stenosis? A randomized controlled trial. Spine. 2007;32(1):1-8.

10. Chang Y, Singer DE, Wu YA, Keller RB, Atlas SJ. The effect of surgical and nonsurgical treatment on longitudinal outcomes of lumbar spinal stenosis over 10 years. J Am Geriatr Soc. 2005;53(5):785-792.

11. Cowan JA Jr, Dimick JB, Wainess R, Upchurch GR Jr, Chandler WF, La Marca F. Changes in the utilization of spinal fusion in the United States. Neurosurgery. 2006;59(1):15-20.

12. Lonner BS, Scharf CS, Antonacci D, Goldstein Y, Panagopoulos G. The learning curve associated with thoracoscopic spinal instrumentation. Spine. 2005;30(24):2835-2840.

13. Lonner BS, Kondrachov D, Siddiqi F, Hayes V, Scharf C. Thoracoscopic spinal fusion compared with posterior spinal fusion for the treatment of thoracic adolescent idiopathic scoliosis. J Bone Joint Surg Am. 2006;88(5):1022-1034.

14. Boakye M, Patil CG, Santarelli J, Ho C, Tian W, Lad SP. Cervical spondylotic myelopathy: complications and outcomes after spinal fusion. Neurosurgery. 2008;62(2):455-461.

15. Boakye M, Patil CG, Santarelli J, Ho C, Tian W, Lad SP. Laminectomy and fusion after spinal cord injury: national inpatient complications and outcomes. J Neurotrauma. 2008;25(3):173-183.

16. Dekutoski MB, Norvell DC, Dettori JR, Fehlings MG, Chapman JR. Surgeon perceptions and reported complications in spine surgery. Spine. 2010;35(9 suppl):S9-S21.

17. Nasser R, Yadla S, Maltenfort MG, et al. Complications in spine surgery. J Neurosurg Spine. 2010;13(2):144-157.

18. Patil CG, Santarelli J, Lad SP, Ho C, Tian W, Boakye M. Inpatient complications, mortality, and discharge disposition after surgical correction of idiopathic scoliosis: a national perspective. Spine J. 2008;8(6):904-910.

19. Rampersaud YR, Moro ER, Neary MA, et al. Intraoperative adverse events and related postoperative complications in spine surgery: implications for enhancing patient safety founded on evidence-based protocols. Spine. 2006;31(13):1503-1510.

20. Shen Y, Silverstein JC, Roth S. In-hospital complications and mortality after elective spinal fusion surgery in the United States: a study of the Nationwide Inpatient Sample from 2001 to 2005. J Neurosurg Anesthesiol. 2009;21(1):21-30.

21. Picavet HSJ, Vlaeyen JWS, Schouten JSAG. Pain catastrophizing and kinesiophobia: predictors of chronic low back pain. Am J Epidemiol. 2002;156(11):1028-1034.

22. French DJ, France CR, Vigneau F, French JA, Evans RT. Fear of movement/(re)injury in chronic pain: a psychometric assessment of the original English version of the Tampa Scale for Kinesiophobia (TSK). Pain. 2007;127(1-2):42-51.

23. Goubert L, Crombez G, Van Damme S, Vlaeyen JW, Bijttebier P, Roelofs J. Confirmatory factor analysis of the Tampa Scale for Kinesiophobia: invariant two-factor model across low back pain patients and fibromyalgia patients. Clin J Pain. 2004;20(2):103-110.

24. Selimen D, Andsoy II. The importance of a holistic approach during the perioperative period. AORN J. 2011;93(4):482-487.

25. Zheng Z. Xue CC. Pain research in complementary and alternative medicine in Australia: a critical review. J Altern Complement Med. 2013;19(2):81-91.

26. Wright J, Adams D, Vohra S. Complementary, holistic, and integrative medicine: music for procedural pain. Pediatr Rev. 2013;34(11):e42-e46.

27. McCann PD. Orthopedic surgery and integrative medicine—strange bedfellows. Am J Orthop. 2009;38(2):66, 71.

28. McCann PD. Customer satisfaction: are hospitals “hospitable”? Am J Orthop. 2006;35(2):59.

29. Joanna Briggs Institute. The Joanna Briggs Institute best practice information sheet: music as an intervention in hospitals. Nurs Health Sci. 2011;13(1):99-102.

30. Spintge R. Thirty-five years of anxiolytic music (AAM) in pain and aversive clinical settings. In: Mondanaro J, Sara G, eds. Music and Medicine: Integrative Models in the Treatment of Pain. New York, NY: Satchnote Press; 2013:29-42.

31. Cepeda MS, Carr DB, Lau J, Alvarez H. Music for pain relief. Cochrane Database Syst Rev. 2006;(2):CD004843.

32. Mondanaro J. Music therapy based release strategies in the treatment of acute and chronic pain: an individualized approach. In: Mondanaro J, Sara G, eds. Music and Medicine: Integrative Models in the Treatment of Pain. New York, NY: Satchnote Press; 2013:133-148.

 

 

33. Quentzel S. Music has charms to soothe a savage breast. In: Mondanaro J, Sara G, eds. Music and Medicine: Integrative Models in the Treatment of Pain. New York, NY: Satchnote Press; 2013:11-28.

34. Ko YL. Lin PC. The effect of using a relaxation tape on pulse, respiration, blood pressure and anxiety levels of surgical patients. J Clin Nurs. 2012;21(5-6):689-697.

35. Roy M, Lebuis A, Hugueville L, Peretz I, Rainville P. Spinal modulation of nociception by music. Eur J Pain. 2012;16(6):870-877.

36. Roy M, Peretz I, Rainville P. Emotional valence contributes to music-induced analgesia. Pain. 2008;134(1-2):140-147.

37. Schröter T. Medicine needs music! Music therapy for chronic pain [in German]. Rev Med Suisse. 2014;10(415):286.

38. Bellieni CV, Cioncoloni D, Mazzanti S, et al. Music provided through a portable media player (iPod) blunts pain during physical therapy. Pain Manag Nurs. 2013;14(4):e151-e155.

39. Bernatzky G, Presch M, Anderson M, Panksepp J. Emotional foundations of music as a non-pharmacological pain management tool in modern medicine. Neurosci Biobehav Rev. 2011;35(9):1989-1999.

40. Bradshaw DH, Chapman CR, Jacobson RC, Donaldson GW. Effects of music engagement on response to painful stimulation. Clin J Pain. 2012;28(5):418-427.

41. Bradshaw DH, Donaldson GW, Jacobson RC, Nakamura Y, Chapman CR. Individual differences in the effects of music engagement on responses to painful stimulation. J Pain. 2011;12(12):1262-1273.

42. Chlan L, Halm MA. Does music ease pain and anxiety in the critically ill? Am J Crit Care. 2013;22(6):528-532.

43. Guétin S, Giniès P, Siou DK, et al. The effects of music intervention in the management of chronic pain: a single-blind, randomized, controlled trial. Clin J Pain. 2012;28(4):329-337.

44. Matsota P, Christodoulopoulou T, Smyrnioti ME, et al. Music’s use for anesthesia and analgesia. J Altern Complement Med. 2013;19(4):298-307.

45. Gooding L, Swezey S, Zwischenberger JB. Using music interventions in perioperative care. South Med J. 2012;105(9):486-490.

46. Graversen M, Sommer T. Perioperative music may reduce pain and fatigue in patients undergoing laparoscopic cholecystectomy. Acta Anaesthesiol Scand. 2013;57(8):1010-1016.

47. Ni CH, Tsai WH, Lee LM, Kao CC, Chen YC. Minimising preoperative anxiety with music for day surgery patients—a randomised clinical trial. J Clin Nurs. 2012;21(5-6):620-625.

48. Good M, Albert JM, Anderson GC, et al. Supplementing relaxation and music for pain after surgery. Nurs Res. 2010;59(4):259-269.

49. Moris DN, Linos D. Music meets surgery: two sides to the art of “healing.” Surg Endosc. 2013;27(3):719-723.

50. Nilsson U, Rawal N, Unosson M. A comparison of intra-operative or postoperative exposure to music—a controlled trial of the effects on postoperative pain. Anaesthesia. 2003;58(7):699-703.

51. Özer N, Karaman Özlü Z, Arslan S, Günes N. Effect of music on postoperative pain and physiologic parameters of patients after open heart surgery. Pain Manag Nurs. 2013;14(1):20-28.

52. Sen H, Yanarateş O, Sızlan A, Kılıç E, Ozkan S, Dağlı G. The efficiency and duration of the analgesic effects of musical therapy on postoperative pain. Agri. 2010;22(4):145-150.

53. Vaajoki A, Pietilä AM, Kankkunen P, Vehviläinen-Julkunen K. Music intervention study in abdominal surgery patients: challenges of an intervention study in clinical practice. Int J Nurs Pract. 2013;19(2):206-213.

54. Vaajoki A, Pietilä AM, Kankkunen P, Vehviläinen-Julkunen K. Effects of listening to music on pain intensity and pain distress after surgery: an intervention. J Clin Nurs. 2012;21(5-6):708-717.

55. Whitaker MH. Sounds soothing: music therapy for postoperative pain. Nursing. 2010;40(12):53-54.

56. Edwards J. Developing pain management approaches in music therapy with hospitalized children. In: Loewy J, Dileo C, eds. Music Therapy at the End of Life. Cherry Hill, NJ: Jeffrey Books; 2005:57-76.

57. Loewy J. The quiet soldier: pain and sickle cell anemia. In: Hibben J, ed. Inside Music Therapy: Client Experiences. Gilsum, NH: Barcelona; 1999:69-76.

58. Lichtensztejn M. The clinical use of piano with patients suffering from breathing distress related to pain. In: Azoulay R, Loewy JV, eds. Music, the Breath and Health: Advances in Integrative Music Therapy. New York, NY: Satchnote Press; 2009:213-222.

59. Kwon IS, Kim J, Park KM. Effects of music therapy on pain, discomfort, and depression for patients with leg fractures. Taehan Kanho Hakhoe Chi. 2006;36(4):630-636.

60. Zengin S, Kabul S, Al B, Sarcan E, Doğan M, Yildirim C. Effects of music therapy on pain and anxiety in patients undergoing port catheter placement procedure. Complement Ther Med. 2013;21(6):689-696.

61. Boso M, Politi P, Barale F, Emanuele E. Neurophysiology and neurobiology of the musical experience. Funct Neurol. 2006;21(4):187-191.

62. Salimpoor VN, Benovoy M, Larcher K, Dagher A, Zatorre RJ. Anatomically distinct dopamine release during anticipation and experience of peak emotion to music. Nat Neurosci. 2011;14(2):257-262.

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64. Molinari M, Leggio MG, De Martin M, Cerasa A, Thaut M. Neurobiology of rhythmic motor entrainment. Ann N Y Acad Sci. 2003;999:313-321.

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69. Maeyama A, Kodaka M, Miyao H. Effect of the music-therapy under spinal anesthesia [in Japanese]. Masui. 2009;58(6):684-691.

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References

1. Miller B, Gatchel RJ, Lou L, Stowell A, Robinson R, Polatin PB. Interdisciplinary treatment of failed back surgery syndrome (FBSS): a comparison of FBSS and non-FBSS patients. Pain Pract. 2005;5(3):190-202.

2. Aebi M. The adult scoliosis. Eur Spine J. 2005;14(10):925-948.

3. Engstrom JW, Deyo, RA. Back and neck pain. In: Kasper DL, Braunwald E, Fauci AS, et al, eds. Harrison’s Principles of Internal Medicine, 19th edition. New York, NY: McGraw-Hill; 2007:207-214.

4. Cavanaugh JM, Lu Y, Chen C, Kallakuri S. Pain generation in lumbar and cervical facet joints. J Bone Joint Surg Am. 2006;88(suppl 2):63-67.

5. Hart RA, Prendergast MA. Spine surgery for lumbar degenerative disease in elderly and osteoporotic patients. Instr Course Lect. 2007;56:257-272.

6. Boswell MV, Trescot AM, Datta S, et al; American Society of Interventional Pain Physicians. Interventional techniques: evidence-based practice guidelines in the management of chronic spinal pain. Pain Physician. 2007;10(1):7-111.

7. Weinstein JN, Lurie JD, Tosteson TD, et al. Surgical versus nonsurgical treatment for lumbar degenerative spondylolisthesis. N Engl J Med. 2007;356(22):2257-2270.

8. Weinstein JN, Tosteson TD, Lurie JD, et al. Surgical vs nonoperative treatment for lumbar disk herniation: the Spine Patient Outcomes Research Trial (SPORT): A randomized trial. JAMA. 2006;296(20):2441-2450.

9. Malmivaara A, Slätis P, Heliövaara M, et al; Finnish Lumbar Spinal Research Group. Surgical or nonoperative treatment for lumbar spinal stenosis? A randomized controlled trial. Spine. 2007;32(1):1-8.

10. Chang Y, Singer DE, Wu YA, Keller RB, Atlas SJ. The effect of surgical and nonsurgical treatment on longitudinal outcomes of lumbar spinal stenosis over 10 years. J Am Geriatr Soc. 2005;53(5):785-792.

11. Cowan JA Jr, Dimick JB, Wainess R, Upchurch GR Jr, Chandler WF, La Marca F. Changes in the utilization of spinal fusion in the United States. Neurosurgery. 2006;59(1):15-20.

12. Lonner BS, Scharf CS, Antonacci D, Goldstein Y, Panagopoulos G. The learning curve associated with thoracoscopic spinal instrumentation. Spine. 2005;30(24):2835-2840.

13. Lonner BS, Kondrachov D, Siddiqi F, Hayes V, Scharf C. Thoracoscopic spinal fusion compared with posterior spinal fusion for the treatment of thoracic adolescent idiopathic scoliosis. J Bone Joint Surg Am. 2006;88(5):1022-1034.

14. Boakye M, Patil CG, Santarelli J, Ho C, Tian W, Lad SP. Cervical spondylotic myelopathy: complications and outcomes after spinal fusion. Neurosurgery. 2008;62(2):455-461.

15. Boakye M, Patil CG, Santarelli J, Ho C, Tian W, Lad SP. Laminectomy and fusion after spinal cord injury: national inpatient complications and outcomes. J Neurotrauma. 2008;25(3):173-183.

16. Dekutoski MB, Norvell DC, Dettori JR, Fehlings MG, Chapman JR. Surgeon perceptions and reported complications in spine surgery. Spine. 2010;35(9 suppl):S9-S21.

17. Nasser R, Yadla S, Maltenfort MG, et al. Complications in spine surgery. J Neurosurg Spine. 2010;13(2):144-157.

18. Patil CG, Santarelli J, Lad SP, Ho C, Tian W, Boakye M. Inpatient complications, mortality, and discharge disposition after surgical correction of idiopathic scoliosis: a national perspective. Spine J. 2008;8(6):904-910.

19. Rampersaud YR, Moro ER, Neary MA, et al. Intraoperative adverse events and related postoperative complications in spine surgery: implications for enhancing patient safety founded on evidence-based protocols. Spine. 2006;31(13):1503-1510.

20. Shen Y, Silverstein JC, Roth S. In-hospital complications and mortality after elective spinal fusion surgery in the United States: a study of the Nationwide Inpatient Sample from 2001 to 2005. J Neurosurg Anesthesiol. 2009;21(1):21-30.

21. Picavet HSJ, Vlaeyen JWS, Schouten JSAG. Pain catastrophizing and kinesiophobia: predictors of chronic low back pain. Am J Epidemiol. 2002;156(11):1028-1034.

22. French DJ, France CR, Vigneau F, French JA, Evans RT. Fear of movement/(re)injury in chronic pain: a psychometric assessment of the original English version of the Tampa Scale for Kinesiophobia (TSK). Pain. 2007;127(1-2):42-51.

23. Goubert L, Crombez G, Van Damme S, Vlaeyen JW, Bijttebier P, Roelofs J. Confirmatory factor analysis of the Tampa Scale for Kinesiophobia: invariant two-factor model across low back pain patients and fibromyalgia patients. Clin J Pain. 2004;20(2):103-110.

24. Selimen D, Andsoy II. The importance of a holistic approach during the perioperative period. AORN J. 2011;93(4):482-487.

25. Zheng Z. Xue CC. Pain research in complementary and alternative medicine in Australia: a critical review. J Altern Complement Med. 2013;19(2):81-91.

26. Wright J, Adams D, Vohra S. Complementary, holistic, and integrative medicine: music for procedural pain. Pediatr Rev. 2013;34(11):e42-e46.

27. McCann PD. Orthopedic surgery and integrative medicine—strange bedfellows. Am J Orthop. 2009;38(2):66, 71.

28. McCann PD. Customer satisfaction: are hospitals “hospitable”? Am J Orthop. 2006;35(2):59.

29. Joanna Briggs Institute. The Joanna Briggs Institute best practice information sheet: music as an intervention in hospitals. Nurs Health Sci. 2011;13(1):99-102.

30. Spintge R. Thirty-five years of anxiolytic music (AAM) in pain and aversive clinical settings. In: Mondanaro J, Sara G, eds. Music and Medicine: Integrative Models in the Treatment of Pain. New York, NY: Satchnote Press; 2013:29-42.

31. Cepeda MS, Carr DB, Lau J, Alvarez H. Music for pain relief. Cochrane Database Syst Rev. 2006;(2):CD004843.

32. Mondanaro J. Music therapy based release strategies in the treatment of acute and chronic pain: an individualized approach. In: Mondanaro J, Sara G, eds. Music and Medicine: Integrative Models in the Treatment of Pain. New York, NY: Satchnote Press; 2013:133-148.

 

 

33. Quentzel S. Music has charms to soothe a savage breast. In: Mondanaro J, Sara G, eds. Music and Medicine: Integrative Models in the Treatment of Pain. New York, NY: Satchnote Press; 2013:11-28.

34. Ko YL. Lin PC. The effect of using a relaxation tape on pulse, respiration, blood pressure and anxiety levels of surgical patients. J Clin Nurs. 2012;21(5-6):689-697.

35. Roy M, Lebuis A, Hugueville L, Peretz I, Rainville P. Spinal modulation of nociception by music. Eur J Pain. 2012;16(6):870-877.

36. Roy M, Peretz I, Rainville P. Emotional valence contributes to music-induced analgesia. Pain. 2008;134(1-2):140-147.

37. Schröter T. Medicine needs music! Music therapy for chronic pain [in German]. Rev Med Suisse. 2014;10(415):286.

38. Bellieni CV, Cioncoloni D, Mazzanti S, et al. Music provided through a portable media player (iPod) blunts pain during physical therapy. Pain Manag Nurs. 2013;14(4):e151-e155.

39. Bernatzky G, Presch M, Anderson M, Panksepp J. Emotional foundations of music as a non-pharmacological pain management tool in modern medicine. Neurosci Biobehav Rev. 2011;35(9):1989-1999.

40. Bradshaw DH, Chapman CR, Jacobson RC, Donaldson GW. Effects of music engagement on response to painful stimulation. Clin J Pain. 2012;28(5):418-427.

41. Bradshaw DH, Donaldson GW, Jacobson RC, Nakamura Y, Chapman CR. Individual differences in the effects of music engagement on responses to painful stimulation. J Pain. 2011;12(12):1262-1273.

42. Chlan L, Halm MA. Does music ease pain and anxiety in the critically ill? Am J Crit Care. 2013;22(6):528-532.

43. Guétin S, Giniès P, Siou DK, et al. The effects of music intervention in the management of chronic pain: a single-blind, randomized, controlled trial. Clin J Pain. 2012;28(4):329-337.

44. Matsota P, Christodoulopoulou T, Smyrnioti ME, et al. Music’s use for anesthesia and analgesia. J Altern Complement Med. 2013;19(4):298-307.

45. Gooding L, Swezey S, Zwischenberger JB. Using music interventions in perioperative care. South Med J. 2012;105(9):486-490.

46. Graversen M, Sommer T. Perioperative music may reduce pain and fatigue in patients undergoing laparoscopic cholecystectomy. Acta Anaesthesiol Scand. 2013;57(8):1010-1016.

47. Ni CH, Tsai WH, Lee LM, Kao CC, Chen YC. Minimising preoperative anxiety with music for day surgery patients—a randomised clinical trial. J Clin Nurs. 2012;21(5-6):620-625.

48. Good M, Albert JM, Anderson GC, et al. Supplementing relaxation and music for pain after surgery. Nurs Res. 2010;59(4):259-269.

49. Moris DN, Linos D. Music meets surgery: two sides to the art of “healing.” Surg Endosc. 2013;27(3):719-723.

50. Nilsson U, Rawal N, Unosson M. A comparison of intra-operative or postoperative exposure to music—a controlled trial of the effects on postoperative pain. Anaesthesia. 2003;58(7):699-703.

51. Özer N, Karaman Özlü Z, Arslan S, Günes N. Effect of music on postoperative pain and physiologic parameters of patients after open heart surgery. Pain Manag Nurs. 2013;14(1):20-28.

52. Sen H, Yanarateş O, Sızlan A, Kılıç E, Ozkan S, Dağlı G. The efficiency and duration of the analgesic effects of musical therapy on postoperative pain. Agri. 2010;22(4):145-150.

53. Vaajoki A, Pietilä AM, Kankkunen P, Vehviläinen-Julkunen K. Music intervention study in abdominal surgery patients: challenges of an intervention study in clinical practice. Int J Nurs Pract. 2013;19(2):206-213.

54. Vaajoki A, Pietilä AM, Kankkunen P, Vehviläinen-Julkunen K. Effects of listening to music on pain intensity and pain distress after surgery: an intervention. J Clin Nurs. 2012;21(5-6):708-717.

55. Whitaker MH. Sounds soothing: music therapy for postoperative pain. Nursing. 2010;40(12):53-54.

56. Edwards J. Developing pain management approaches in music therapy with hospitalized children. In: Loewy J, Dileo C, eds. Music Therapy at the End of Life. Cherry Hill, NJ: Jeffrey Books; 2005:57-76.

57. Loewy J. The quiet soldier: pain and sickle cell anemia. In: Hibben J, ed. Inside Music Therapy: Client Experiences. Gilsum, NH: Barcelona; 1999:69-76.

58. Lichtensztejn M. The clinical use of piano with patients suffering from breathing distress related to pain. In: Azoulay R, Loewy JV, eds. Music, the Breath and Health: Advances in Integrative Music Therapy. New York, NY: Satchnote Press; 2009:213-222.

59. Kwon IS, Kim J, Park KM. Effects of music therapy on pain, discomfort, and depression for patients with leg fractures. Taehan Kanho Hakhoe Chi. 2006;36(4):630-636.

60. Zengin S, Kabul S, Al B, Sarcan E, Doğan M, Yildirim C. Effects of music therapy on pain and anxiety in patients undergoing port catheter placement procedure. Complement Ther Med. 2013;21(6):689-696.

61. Boso M, Politi P, Barale F, Emanuele E. Neurophysiology and neurobiology of the musical experience. Funct Neurol. 2006;21(4):187-191.

62. Salimpoor VN, Benovoy M, Larcher K, Dagher A, Zatorre RJ. Anatomically distinct dopamine release during anticipation and experience of peak emotion to music. Nat Neurosci. 2011;14(2):257-262.

63. Tomaino CM. Using rhythm for rehabilitation. Institute for Music and Neurologic Function website. http://musictherapy.imnf.org/images/uploads/rhythm.pdf. Published 2006. Accessed August 21, 2007.

64. Molinari M, Leggio MG, De Martin M, Cerasa A, Thaut M. Neurobiology of rhythmic motor entrainment. Ann N Y Acad Sci. 2003;999:313-321.

65. Thaut M. Neuropsychological processes in music perception. In: Unkefer R, ed. Music Therapy in the Treatment of Adults With Mental Disorders: Theoretical Bases and Clinical Interventions. Toronto, Canada: Schirmer Books; 2002:2-32.

66. Thaut M. Physiological and motor responses to music stimuli. In: Unkefer R, ed. Music Therapy in the Treatment of Adults With Mental Disorders: Theoretical Bases and Clinical Interventions. Toronto, Canada: Schimer Books; 2002:33-41.

67. Kleiber C, Adamek MS. Adolescents’ perceptions of music therapy following spinal fusion surgery. J Clin Nurs. 2013;22(3-4):414-422.

68. Lin PC, Lin ML, Huang LC, Hsu HC, Lin CC. Music therapy for patients receiving spine surgery. J Clin Nurs. 2011;20(7-8):960-968.

69. Maeyama A, Kodaka M, Miyao H. Effect of the music-therapy under spinal anesthesia [in Japanese]. Masui. 2009;58(6):684-691.

70. Golden J, Conroy RM, O’Dwyer AM. Reliability and validity of the Hospital Anxiety and Depression Scale and the Beck Depression Inventory (Full and FastScreen scales) in detecting depression in persons with hepatitis C. J Affect Disord. 2006;100(1-3):265-269.

71. Woby SR, Roach NK, Urmston M, Watson PJ. Psychometric properties of the TSK-11: a shortened version of the Tampa Scale for Kinesiophobia. Pain. 2005;117(1-2):137-144.

72. Humrichouse J, Chmielewski M, McDade-Montez EA, Watson D. Affect assessment through self-report methods. In: Rottenberg J, Johnson SL, eds. Emotion and Psychopathology: Bridging Affective and Clinical Science. Washington, DC: American Psychological Association; 2007:13-34.

73. Lincoln YS, Guba EG. Naturalistic Inquiry. Beverly Hills, CA: Sage; 1985.

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PCV effective against HNIs, pHNIs that require hospitalization in immunized children

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Pneumococcal conjugate vaccines (PCV) in immunized children show effectiveness against head and neck infections (HNIs), especially against pneumococcal HNIs (pHNIs) that require hospitalization, according to Tal Marom, MD, of Tel Aviv University, Zerifin, Israel, and associates.

In a retrospective study, researchers identified children aged 0-16 years who were hospitalized with HNIs between Jan. 1, 2007 and Dec. 31, 2014. HNIs accounted for 2.5%-4.7% of admissions to the pediatric department, and there was a downward trend in the incidence in the post-PCV years, compared with previous years. Of the 820 children admitted with HNIs, 11% children were identified with pHNIs, 5% with acute otitis media, 4% with acute mastoiditis, and 2% with meningitis; there were no cases of pneumococcal acute bacterial sinusitis or pneumococcal head and neck abscesses. In 2009-2010 (considered as the “transition years,” in which both PCV7 and PCV13 were implemented in Israel), pHNIs incidence sharply decreased, from 7/1,000 to 1.74/1,000 hospitalized children per year, because of a 55% reduction of pneumococcal acute otitis media episodes. There also was an additional decrease observed in the post-PCV years of 2012-2014 (1.62/1,000 hospitalized children per year).

It was noted that unimmunized children were more likely to suffer from pneumococcal infections than immunized children (P = .001). There were no significant differences in the clinical presentation of these two groups, except for the need for surgery, which was significantly greater in immunized children (P = .042).

“The findings of the current study provide further evidence of PCV effectiveness against HNIs in PCV immunized children, and particularly against pHNI which required hospitalization,” Dr. Marom and associates concluded. “A substantial reduction in the all-cause HNIs incidence, and more specifically in pHNIs, in PCV immunized children who required hospitalization, was evident in the present study. This was also followed by a significant reduction in [acute otitis media] rates and to a much lesser extent, in [acute mastoiditis] and meningitis rates.”

Find the full study in the Pediatric Infectious Disease Journal (2016. doi: 10.1097/INF.0000000000001425).

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Pneumococcal conjugate vaccines (PCV) in immunized children show effectiveness against head and neck infections (HNIs), especially against pneumococcal HNIs (pHNIs) that require hospitalization, according to Tal Marom, MD, of Tel Aviv University, Zerifin, Israel, and associates.

In a retrospective study, researchers identified children aged 0-16 years who were hospitalized with HNIs between Jan. 1, 2007 and Dec. 31, 2014. HNIs accounted for 2.5%-4.7% of admissions to the pediatric department, and there was a downward trend in the incidence in the post-PCV years, compared with previous years. Of the 820 children admitted with HNIs, 11% children were identified with pHNIs, 5% with acute otitis media, 4% with acute mastoiditis, and 2% with meningitis; there were no cases of pneumococcal acute bacterial sinusitis or pneumococcal head and neck abscesses. In 2009-2010 (considered as the “transition years,” in which both PCV7 and PCV13 were implemented in Israel), pHNIs incidence sharply decreased, from 7/1,000 to 1.74/1,000 hospitalized children per year, because of a 55% reduction of pneumococcal acute otitis media episodes. There also was an additional decrease observed in the post-PCV years of 2012-2014 (1.62/1,000 hospitalized children per year).

It was noted that unimmunized children were more likely to suffer from pneumococcal infections than immunized children (P = .001). There were no significant differences in the clinical presentation of these two groups, except for the need for surgery, which was significantly greater in immunized children (P = .042).

“The findings of the current study provide further evidence of PCV effectiveness against HNIs in PCV immunized children, and particularly against pHNI which required hospitalization,” Dr. Marom and associates concluded. “A substantial reduction in the all-cause HNIs incidence, and more specifically in pHNIs, in PCV immunized children who required hospitalization, was evident in the present study. This was also followed by a significant reduction in [acute otitis media] rates and to a much lesser extent, in [acute mastoiditis] and meningitis rates.”

Find the full study in the Pediatric Infectious Disease Journal (2016. doi: 10.1097/INF.0000000000001425).

 

Pneumococcal conjugate vaccines (PCV) in immunized children show effectiveness against head and neck infections (HNIs), especially against pneumococcal HNIs (pHNIs) that require hospitalization, according to Tal Marom, MD, of Tel Aviv University, Zerifin, Israel, and associates.

In a retrospective study, researchers identified children aged 0-16 years who were hospitalized with HNIs between Jan. 1, 2007 and Dec. 31, 2014. HNIs accounted for 2.5%-4.7% of admissions to the pediatric department, and there was a downward trend in the incidence in the post-PCV years, compared with previous years. Of the 820 children admitted with HNIs, 11% children were identified with pHNIs, 5% with acute otitis media, 4% with acute mastoiditis, and 2% with meningitis; there were no cases of pneumococcal acute bacterial sinusitis or pneumococcal head and neck abscesses. In 2009-2010 (considered as the “transition years,” in which both PCV7 and PCV13 were implemented in Israel), pHNIs incidence sharply decreased, from 7/1,000 to 1.74/1,000 hospitalized children per year, because of a 55% reduction of pneumococcal acute otitis media episodes. There also was an additional decrease observed in the post-PCV years of 2012-2014 (1.62/1,000 hospitalized children per year).

It was noted that unimmunized children were more likely to suffer from pneumococcal infections than immunized children (P = .001). There were no significant differences in the clinical presentation of these two groups, except for the need for surgery, which was significantly greater in immunized children (P = .042).

“The findings of the current study provide further evidence of PCV effectiveness against HNIs in PCV immunized children, and particularly against pHNI which required hospitalization,” Dr. Marom and associates concluded. “A substantial reduction in the all-cause HNIs incidence, and more specifically in pHNIs, in PCV immunized children who required hospitalization, was evident in the present study. This was also followed by a significant reduction in [acute otitis media] rates and to a much lesser extent, in [acute mastoiditis] and meningitis rates.”

Find the full study in the Pediatric Infectious Disease Journal (2016. doi: 10.1097/INF.0000000000001425).

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Delayed cord clamping cuts anemia for 1 year

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Delaying the clamping of the umbilical cord for 3 minutes after delivery decreased anemia for as long as 8-12 months in a population at high risk for the disorder, according to a report published online Jan. 17 in JAMA Pediatrics.

arztsamui/Thinkstock
They performed a prospective randomized trial in Nepal, a low-income region with a high prevalence of anemia, comparing the two approaches in 540 deliveries during a 7-week period. A study surveillance officer attended all the births. In the delayed-clamping group (270 infants), the neonate was placed on the mother’s abdomen until the officer informed the nurse-midwife that 3 minutes had passed and the cord should be clamped. In the control group (270 infants), the officer informed the nurse-midwife as 60 seconds approached so the cord could be clamped, if she had not already done so.

The primary outcome measure – the hemoglobin level at 8 months of age – was a significant 0.2 g/dL higher after delayed clamping. Also, anemia was significantly less prevalent with delayed cord clamping (73.0% vs. 82.2%). This represents an 11% reduction in the risk of anemia and a 42% reduction in the risk of iron deficiency. “The relative risk for having iron deficiency anemia was 0.58, with a number needed to treat of 7,” Dr. KC and associates said (JAMA Ped. 2017 Jan 17. doi: 10.1001/jamapediatrics.2016.3971).

The benefits of delayed cord clamping persisted at 12 months of age; the mean hemoglobin was 0.3 g/dL higher in the delayed group. Anemia was less prevalent in the delayed clamping group; the relative risk was 0.91, the investigators said.

If this intervention were implemented worldwide, “this could translate to 5 million fewer infants with anemia at 8 months of age, with particular public health significance in South Asia and sub-Saharan Africa, where the prevalence of anemia is highest,” the investigators said. This study was supported by the Midwifery Society of Nepal, the Swedish Society of Medicine, the Little Child’s Foundation, the Swedish Society of Medical Research, and the United Nations Children’s Fund. Dr. KC and associates reported having no relevant financial disclosures.

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Delaying the clamping of the umbilical cord for 3 minutes after delivery decreased anemia for as long as 8-12 months in a population at high risk for the disorder, according to a report published online Jan. 17 in JAMA Pediatrics.

arztsamui/Thinkstock
They performed a prospective randomized trial in Nepal, a low-income region with a high prevalence of anemia, comparing the two approaches in 540 deliveries during a 7-week period. A study surveillance officer attended all the births. In the delayed-clamping group (270 infants), the neonate was placed on the mother’s abdomen until the officer informed the nurse-midwife that 3 minutes had passed and the cord should be clamped. In the control group (270 infants), the officer informed the nurse-midwife as 60 seconds approached so the cord could be clamped, if she had not already done so.

The primary outcome measure – the hemoglobin level at 8 months of age – was a significant 0.2 g/dL higher after delayed clamping. Also, anemia was significantly less prevalent with delayed cord clamping (73.0% vs. 82.2%). This represents an 11% reduction in the risk of anemia and a 42% reduction in the risk of iron deficiency. “The relative risk for having iron deficiency anemia was 0.58, with a number needed to treat of 7,” Dr. KC and associates said (JAMA Ped. 2017 Jan 17. doi: 10.1001/jamapediatrics.2016.3971).

The benefits of delayed cord clamping persisted at 12 months of age; the mean hemoglobin was 0.3 g/dL higher in the delayed group. Anemia was less prevalent in the delayed clamping group; the relative risk was 0.91, the investigators said.

If this intervention were implemented worldwide, “this could translate to 5 million fewer infants with anemia at 8 months of age, with particular public health significance in South Asia and sub-Saharan Africa, where the prevalence of anemia is highest,” the investigators said. This study was supported by the Midwifery Society of Nepal, the Swedish Society of Medicine, the Little Child’s Foundation, the Swedish Society of Medical Research, and the United Nations Children’s Fund. Dr. KC and associates reported having no relevant financial disclosures.

 

Delaying the clamping of the umbilical cord for 3 minutes after delivery decreased anemia for as long as 8-12 months in a population at high risk for the disorder, according to a report published online Jan. 17 in JAMA Pediatrics.

arztsamui/Thinkstock
They performed a prospective randomized trial in Nepal, a low-income region with a high prevalence of anemia, comparing the two approaches in 540 deliveries during a 7-week period. A study surveillance officer attended all the births. In the delayed-clamping group (270 infants), the neonate was placed on the mother’s abdomen until the officer informed the nurse-midwife that 3 minutes had passed and the cord should be clamped. In the control group (270 infants), the officer informed the nurse-midwife as 60 seconds approached so the cord could be clamped, if she had not already done so.

The primary outcome measure – the hemoglobin level at 8 months of age – was a significant 0.2 g/dL higher after delayed clamping. Also, anemia was significantly less prevalent with delayed cord clamping (73.0% vs. 82.2%). This represents an 11% reduction in the risk of anemia and a 42% reduction in the risk of iron deficiency. “The relative risk for having iron deficiency anemia was 0.58, with a number needed to treat of 7,” Dr. KC and associates said (JAMA Ped. 2017 Jan 17. doi: 10.1001/jamapediatrics.2016.3971).

The benefits of delayed cord clamping persisted at 12 months of age; the mean hemoglobin was 0.3 g/dL higher in the delayed group. Anemia was less prevalent in the delayed clamping group; the relative risk was 0.91, the investigators said.

If this intervention were implemented worldwide, “this could translate to 5 million fewer infants with anemia at 8 months of age, with particular public health significance in South Asia and sub-Saharan Africa, where the prevalence of anemia is highest,” the investigators said. This study was supported by the Midwifery Society of Nepal, the Swedish Society of Medicine, the Little Child’s Foundation, the Swedish Society of Medical Research, and the United Nations Children’s Fund. Dr. KC and associates reported having no relevant financial disclosures.

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Key clinical point: Delaying the clamping of the umbilical cord for 3 minutes decreased anemia for as long as 8-12 months in a population at high risk for the disorder.

Major finding: Delayed cord clamping yielded an 11% reduction in the risk of anemia and a 42% reduction in the risk of iron deficiency, compared with early cord clamping.

Data source: A prospective randomized trial involving 540 term and late preterm infants born in Nepal during a 7-week period

Disclosures: This study was supported by the Midwifery Society of Nepal, the Swedish Society of Medicine, the Little Child’s Foundation, the Swedish Society of Medical Research, and the United Nations Children’s Fund. Dr. KC and associates reported having no relevant financial disclosures.

Asthma ruled out in 33% of diagnosed adults

Revisiting asthma diagnoses important
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Asthma was ruled out in 33% of adults in the general Canadian population who had been diagnosed by a physician during the preceding 5 years, according to a report published online Jan. 17 in JAMA.

In a prospective multicenter cohort study involving 613 asthma patients, 203 had no evidence of current asthma when they underwent serial assessments of respiratory symptoms, lung function, and bronchial provocation testing while not taking asthma medications. More than 90% of these 203 participants safely refrained from using the medications for an additional 1-year follow-up period, said Shawn D. Aaron, MD, of Ottawa (Ont.) Hospital Research Institute, and his associates in the Canadian Respiratory Research Network.

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Some of these patients were likely misdiagnosed initially and some likely experienced remission since their initial diagnosis. Either way, reassessing asthma diagnoses may be warranted in many patients, the investigators said (JAMA 2017;317[3]:269-79).

To assess whether some patients could safely discontinue asthma medications because they no longer had the disease, the researchers performed a random sampling of the general adult population (approximately 17,000 people) living in urban, suburban, or rural areas in and around the 10 largest cities in Canada during a 3-year period. Those who reported that a member of the household had been diagnosed as having asthma within the previous 5 years were invited to participate in the study.

A total of 613 men and women (mean age, 51 years) completed the study, undergoing spirometry to assess airflow obstruction, methacholine challenges to assess airway hyperresponsiveness, clinical examination by a pulmonologist, and, if indicated, tapering and discontinuation of asthma medications. Those in whom asthma was ruled out were closely followed for 1 year, undergoing repeat bronchial challenge testing and reporting any worsening of asthma signs and symptoms.

At baseline, 87% of the participants said that they had recently used asthma medications and 45% said they used such medications daily. The remainder had already stopped using asthma medications, an indication that many patients can tell when their asthma has remitted (or was never present) and may adjust their medication use with or without a physician’s guidance, Dr. Aaron and his associates said.

Current asthma was confirmed in 62.3% of the study participants. The primary study outcome – the proportion of patients in whom a current asthma diagnosis was ruled out – was 33.1%, or 203 patients. Only 44% of these participants who did not have current asthma had undergone objective testing before their initial diagnosis, compared with 56% of patients in whom asthma was confirmed. This indicates that “whenever possible, physicians should order objective tests, such as prebronchodilator and postbronchodilator spirometry, serial peak flow measurements, or bronchial challenge tests, to confirm asthma at the time of initial diagnosis,” the investigators said.

A total of 35% of the participants in whom asthma was ruled out had been using daily asthma medications. “Use of asthma medications in these patients presumably provided only risks for medication adverse effects and cost, with little opportunity for therapeutic benefit,” the researchers noted. Twelve patients – 2% of the study population – were found to have serious cardiorespiratory conditions that had been misdiagnosed as asthma: four people with ischemic heart disease (two requiring percutaneous coronary intervention), two with subglottic stenosis (both requiring airway dilation procedures), two with bronchiectasis, and one each with interstitial lung disease, pulmonary hypertension, sarcoidosis, and tracheobronchomalacia.

During the additional year of follow-up, 22 of the 203 patients in whom asthma had been ruled out had a positive bronchial challenge test result at 6 or 12 months. Six resumed using asthma medications, one was treated with a brief course of oral corticosteroid, and the others did not require asthma medications.

The Canadian Institutes of Health Research supported the study. Methapharm provided provocholine and Trudell Medical International provided the peak flow meters used in the study. Dr. Aaron reported having no relevant financial disclosures; his associates reported ties to numerous industry sources.

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“The study by Aaron [et al.] is an important reminder that in addition to reviewing asthma symptoms and treatment, trying to understand if the diagnosis is still appropriate is an important part of clinical care.”

The study gives clinicians two insights: First, adults diagnosed as having asthma may not continue to have the disease years later, or at least may not require treatment indefinitely. And second, physiological testing is an essential component of diagnosis and will help avoid unnecessary treatment and missed alternative causes for signs and symptoms.
 

Helen M. Hollingsworth, MD, and George T. O’Connor, MD, are at the Pulmonary Center at Boston University. Dr. O’Connor is an associate editor of JAMA. He reported serving as a consultant for AstraZeneca and receiving grants from Janssen Pharmaceuticals. Dr. Hollingsworth and Dr. O’Connor made these remarks in an editorial accompanying Dr. Aaron’s report (JAMA 2017;317[3]:262-3).

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“The study by Aaron [et al.] is an important reminder that in addition to reviewing asthma symptoms and treatment, trying to understand if the diagnosis is still appropriate is an important part of clinical care.”

The study gives clinicians two insights: First, adults diagnosed as having asthma may not continue to have the disease years later, or at least may not require treatment indefinitely. And second, physiological testing is an essential component of diagnosis and will help avoid unnecessary treatment and missed alternative causes for signs and symptoms.
 

Helen M. Hollingsworth, MD, and George T. O’Connor, MD, are at the Pulmonary Center at Boston University. Dr. O’Connor is an associate editor of JAMA. He reported serving as a consultant for AstraZeneca and receiving grants from Janssen Pharmaceuticals. Dr. Hollingsworth and Dr. O’Connor made these remarks in an editorial accompanying Dr. Aaron’s report (JAMA 2017;317[3]:262-3).

Body

 

“The study by Aaron [et al.] is an important reminder that in addition to reviewing asthma symptoms and treatment, trying to understand if the diagnosis is still appropriate is an important part of clinical care.”

The study gives clinicians two insights: First, adults diagnosed as having asthma may not continue to have the disease years later, or at least may not require treatment indefinitely. And second, physiological testing is an essential component of diagnosis and will help avoid unnecessary treatment and missed alternative causes for signs and symptoms.
 

Helen M. Hollingsworth, MD, and George T. O’Connor, MD, are at the Pulmonary Center at Boston University. Dr. O’Connor is an associate editor of JAMA. He reported serving as a consultant for AstraZeneca and receiving grants from Janssen Pharmaceuticals. Dr. Hollingsworth and Dr. O’Connor made these remarks in an editorial accompanying Dr. Aaron’s report (JAMA 2017;317[3]:262-3).

Title
Revisiting asthma diagnoses important
Revisiting asthma diagnoses important

 

Asthma was ruled out in 33% of adults in the general Canadian population who had been diagnosed by a physician during the preceding 5 years, according to a report published online Jan. 17 in JAMA.

In a prospective multicenter cohort study involving 613 asthma patients, 203 had no evidence of current asthma when they underwent serial assessments of respiratory symptoms, lung function, and bronchial provocation testing while not taking asthma medications. More than 90% of these 203 participants safely refrained from using the medications for an additional 1-year follow-up period, said Shawn D. Aaron, MD, of Ottawa (Ont.) Hospital Research Institute, and his associates in the Canadian Respiratory Research Network.

copyright marekuliasz/Thinkstock


Some of these patients were likely misdiagnosed initially and some likely experienced remission since their initial diagnosis. Either way, reassessing asthma diagnoses may be warranted in many patients, the investigators said (JAMA 2017;317[3]:269-79).

To assess whether some patients could safely discontinue asthma medications because they no longer had the disease, the researchers performed a random sampling of the general adult population (approximately 17,000 people) living in urban, suburban, or rural areas in and around the 10 largest cities in Canada during a 3-year period. Those who reported that a member of the household had been diagnosed as having asthma within the previous 5 years were invited to participate in the study.

A total of 613 men and women (mean age, 51 years) completed the study, undergoing spirometry to assess airflow obstruction, methacholine challenges to assess airway hyperresponsiveness, clinical examination by a pulmonologist, and, if indicated, tapering and discontinuation of asthma medications. Those in whom asthma was ruled out were closely followed for 1 year, undergoing repeat bronchial challenge testing and reporting any worsening of asthma signs and symptoms.

At baseline, 87% of the participants said that they had recently used asthma medications and 45% said they used such medications daily. The remainder had already stopped using asthma medications, an indication that many patients can tell when their asthma has remitted (or was never present) and may adjust their medication use with or without a physician’s guidance, Dr. Aaron and his associates said.

Current asthma was confirmed in 62.3% of the study participants. The primary study outcome – the proportion of patients in whom a current asthma diagnosis was ruled out – was 33.1%, or 203 patients. Only 44% of these participants who did not have current asthma had undergone objective testing before their initial diagnosis, compared with 56% of patients in whom asthma was confirmed. This indicates that “whenever possible, physicians should order objective tests, such as prebronchodilator and postbronchodilator spirometry, serial peak flow measurements, or bronchial challenge tests, to confirm asthma at the time of initial diagnosis,” the investigators said.

A total of 35% of the participants in whom asthma was ruled out had been using daily asthma medications. “Use of asthma medications in these patients presumably provided only risks for medication adverse effects and cost, with little opportunity for therapeutic benefit,” the researchers noted. Twelve patients – 2% of the study population – were found to have serious cardiorespiratory conditions that had been misdiagnosed as asthma: four people with ischemic heart disease (two requiring percutaneous coronary intervention), two with subglottic stenosis (both requiring airway dilation procedures), two with bronchiectasis, and one each with interstitial lung disease, pulmonary hypertension, sarcoidosis, and tracheobronchomalacia.

During the additional year of follow-up, 22 of the 203 patients in whom asthma had been ruled out had a positive bronchial challenge test result at 6 or 12 months. Six resumed using asthma medications, one was treated with a brief course of oral corticosteroid, and the others did not require asthma medications.

The Canadian Institutes of Health Research supported the study. Methapharm provided provocholine and Trudell Medical International provided the peak flow meters used in the study. Dr. Aaron reported having no relevant financial disclosures; his associates reported ties to numerous industry sources.

 

Asthma was ruled out in 33% of adults in the general Canadian population who had been diagnosed by a physician during the preceding 5 years, according to a report published online Jan. 17 in JAMA.

In a prospective multicenter cohort study involving 613 asthma patients, 203 had no evidence of current asthma when they underwent serial assessments of respiratory symptoms, lung function, and bronchial provocation testing while not taking asthma medications. More than 90% of these 203 participants safely refrained from using the medications for an additional 1-year follow-up period, said Shawn D. Aaron, MD, of Ottawa (Ont.) Hospital Research Institute, and his associates in the Canadian Respiratory Research Network.

copyright marekuliasz/Thinkstock


Some of these patients were likely misdiagnosed initially and some likely experienced remission since their initial diagnosis. Either way, reassessing asthma diagnoses may be warranted in many patients, the investigators said (JAMA 2017;317[3]:269-79).

To assess whether some patients could safely discontinue asthma medications because they no longer had the disease, the researchers performed a random sampling of the general adult population (approximately 17,000 people) living in urban, suburban, or rural areas in and around the 10 largest cities in Canada during a 3-year period. Those who reported that a member of the household had been diagnosed as having asthma within the previous 5 years were invited to participate in the study.

A total of 613 men and women (mean age, 51 years) completed the study, undergoing spirometry to assess airflow obstruction, methacholine challenges to assess airway hyperresponsiveness, clinical examination by a pulmonologist, and, if indicated, tapering and discontinuation of asthma medications. Those in whom asthma was ruled out were closely followed for 1 year, undergoing repeat bronchial challenge testing and reporting any worsening of asthma signs and symptoms.

At baseline, 87% of the participants said that they had recently used asthma medications and 45% said they used such medications daily. The remainder had already stopped using asthma medications, an indication that many patients can tell when their asthma has remitted (or was never present) and may adjust their medication use with or without a physician’s guidance, Dr. Aaron and his associates said.

Current asthma was confirmed in 62.3% of the study participants. The primary study outcome – the proportion of patients in whom a current asthma diagnosis was ruled out – was 33.1%, or 203 patients. Only 44% of these participants who did not have current asthma had undergone objective testing before their initial diagnosis, compared with 56% of patients in whom asthma was confirmed. This indicates that “whenever possible, physicians should order objective tests, such as prebronchodilator and postbronchodilator spirometry, serial peak flow measurements, or bronchial challenge tests, to confirm asthma at the time of initial diagnosis,” the investigators said.

A total of 35% of the participants in whom asthma was ruled out had been using daily asthma medications. “Use of asthma medications in these patients presumably provided only risks for medication adverse effects and cost, with little opportunity for therapeutic benefit,” the researchers noted. Twelve patients – 2% of the study population – were found to have serious cardiorespiratory conditions that had been misdiagnosed as asthma: four people with ischemic heart disease (two requiring percutaneous coronary intervention), two with subglottic stenosis (both requiring airway dilation procedures), two with bronchiectasis, and one each with interstitial lung disease, pulmonary hypertension, sarcoidosis, and tracheobronchomalacia.

During the additional year of follow-up, 22 of the 203 patients in whom asthma had been ruled out had a positive bronchial challenge test result at 6 or 12 months. Six resumed using asthma medications, one was treated with a brief course of oral corticosteroid, and the others did not require asthma medications.

The Canadian Institutes of Health Research supported the study. Methapharm provided provocholine and Trudell Medical International provided the peak flow meters used in the study. Dr. Aaron reported having no relevant financial disclosures; his associates reported ties to numerous industry sources.

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Key clinical point: Asthma was ruled out in 33% of adults in the general Canadian population who had been diagnosed by a physician.

Major finding: Only 44% of the participants in whom asthma was ruled out had undergone objective testing before their initial diagnosis, compared with 56% of patients in whom asthma was confirmed.

Data source: A prospective multicenter cohort study involving 613 adults who had been diagnosed as having asthma during the preceding 5 years.

Disclosures: The Canadian Institutes of Health Research supported the study. Methapharm provided provocholine and Trudell Medical International provided the peak flow meters used in the study. Dr. Aaron reported having no relevant financial disclosures; his associates reported ties to numerous industry sources.

Assay testing accurate in distinguishing bacterial from viral respiratory tract infections

Study results are promising, but come with caveats
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An assay designed to distinguish between bacterial and viral infections of the lower respiratory tract appears effective and shows promise for helping hospital physicians reduce overprescribing of antibiotics to children, a study showed.

“It is often not possible to differentiate between bacterial and nonbacterial disease on the basis of clinical judgment alone, [so] antibiotics are prescribed almost twice as often as required in children with acute respiratory tract infections in the USA,” wrote Chantal B. van Houten of the University Medical Centre Utrecht (the Netherlands) and associates in a study published in the Lancet Infectious Diseases.

The assay in question is called ImmunoXpert, which uses three biomarkers – tumor necrosis factor–related apoptosis-inducing ligand (TRAIL), interferon-gamma–induced protein-10 (IP-10), and C-reactive protein (CRP) – to determine if a lower respiratory tract infection has a viral or bacterial origin. A total of 777 subjects, aged 2-60 months, were recruited from four hospitals in the Netherlands and two hospitals in Israel between October 16, 2013, and March 1, 2015 (Lancet Inf Dis. 2016 Dec. doi: 10.1016/S1473-3099(16)30519-9).

The patients all had fevers with unidentified sources when they presented, and had a follow-up assessment carried out 28 days after baseline. Blood samples and nasal swabs were collected within 24 hours of presentation for assay analysis. Additionally, every subject was diagnosed as “bacterial” or “viral” by a three-member panel of pediatricians, whose diagnoses were based on the data available from the follow-up assessment and from clinical and laboratory data. The panel diagnosis for each subject was used as the reference standard.

Of the 777 subjects initially recruited, 200 were excluded from the final analysis for various reasons. Of the 577 who remained, the panel diagnosed 435 as having a viral infection and 71 as having a bacterial infection; 71 were deemed “inconclusive.” The panel was unanimous in 354 of these cases, and a majority of the panel (two of the three experts) agreed in 443 of these cases. In unanimous cases, the sensitivity of distinguishing between viral and bacterial cases correctly was 87.8%, with a specificity of 93.0%. The panel’s positive and negative predictive value were 62.1% and 98.3%, respectively.

The assay’s sensitivity rate in distinguishing between viral and bacterial infections was very close: 86.7%, with a specificity of 91.1%, which the authors noted was “promising diagnostic accuracy.” The positive predictive value of the assay was 60.5%, while the negative predictive value was found to be 97.8%.

Regarding the 71 cases that were deemed “inconclusive,” Dr. van Houten and coauthors acknowledged that “such inconclusive cases are inherent to studies without a gold standard, and this was taken into account when calculating the sample size.” Additionally, they noted that follow-up studies should take into consideration the costs of utilizing assay testing like ImmunoXpert, in order to better assess the financial implications that adopting the technology would have on a health care facility.

Nevertheless, the investigators concluded, “our findings [support] the need for implementation research to examine the added clinical utility of ImmunoXpert to diagnose bacterial infection in clinical care for children with lower respiratory tract infection and fever without source presenting at the hospital.”

Funding for this study was provided by MeMed Diagnostics. Dr. van Houten and coauthors did not report any relevant financial disclosures.

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“A study by Chantal van Houten and colleagues in this issue of the Lancet Infectious Diseases tested the combined measurement of CRP, TRAIL, and IP-10, and found that this test distinguished bacterial from viral infections with a sensitivity of 86.7% and a specificity of 91.1%. This assay is significantly more effective than procalcitonin determinations in identifying the cause of infection because it improves the diagnostic classification of bacterial infections by 6.3% and of viral infections by 5.4%. However, by comparison with CRP, the CRP, TRAIL, and IP-10 combined assay is as effective at classifying bacterial cases, although it does improve the identification of patients with viral infections by 8.6%. Furthermore, it still has some limitations that currently preclude its routine use in clinical practice.

“First, the test requires advanced laboratory techniques and cannot be used outside hospitals. Second, the collected data came from a relatively small number of children, none of whom had an underlying disease that might modify host response to infection. Third – as in the case of all of the studies that have tried to differentiate bacterial and viral infection – the definition of cause of infection used in these studies varies. Finally, respiratory infections are frequently classified on the basis of clinical and radiological findings, and the results of a microbiological assessment of nasopharyngeal swabs.

“However, it is well known that the investigation into upper respiratory secretions in children can be confounding and lead to the erroneous classification of a lower respiratory disease, and that bacteria and viruses can simply be carried and could have no association with the cause of a disease. This means that future studies should confirm the results of host protein-based assays in larger study populations with various characteristics, and consider their cost to benefit ratios in relation to their real effect on reducing antibiotic use.”
 

Susanna Esposito, MD, and Nicola Principi, MD, are with the University of Milan. Their opinions are excerpted from a commentary on the article by Dr. van Houten et al. (Lancet Inf Dis. 2016 Dec. doi: 10.1016/S1473-3099(16)30536-9). They had no relevant financial disclosures.

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“A study by Chantal van Houten and colleagues in this issue of the Lancet Infectious Diseases tested the combined measurement of CRP, TRAIL, and IP-10, and found that this test distinguished bacterial from viral infections with a sensitivity of 86.7% and a specificity of 91.1%. This assay is significantly more effective than procalcitonin determinations in identifying the cause of infection because it improves the diagnostic classification of bacterial infections by 6.3% and of viral infections by 5.4%. However, by comparison with CRP, the CRP, TRAIL, and IP-10 combined assay is as effective at classifying bacterial cases, although it does improve the identification of patients with viral infections by 8.6%. Furthermore, it still has some limitations that currently preclude its routine use in clinical practice.

“First, the test requires advanced laboratory techniques and cannot be used outside hospitals. Second, the collected data came from a relatively small number of children, none of whom had an underlying disease that might modify host response to infection. Third – as in the case of all of the studies that have tried to differentiate bacterial and viral infection – the definition of cause of infection used in these studies varies. Finally, respiratory infections are frequently classified on the basis of clinical and radiological findings, and the results of a microbiological assessment of nasopharyngeal swabs.

“However, it is well known that the investigation into upper respiratory secretions in children can be confounding and lead to the erroneous classification of a lower respiratory disease, and that bacteria and viruses can simply be carried and could have no association with the cause of a disease. This means that future studies should confirm the results of host protein-based assays in larger study populations with various characteristics, and consider their cost to benefit ratios in relation to their real effect on reducing antibiotic use.”
 

Susanna Esposito, MD, and Nicola Principi, MD, are with the University of Milan. Their opinions are excerpted from a commentary on the article by Dr. van Houten et al. (Lancet Inf Dis. 2016 Dec. doi: 10.1016/S1473-3099(16)30536-9). They had no relevant financial disclosures.

Body

 

“A study by Chantal van Houten and colleagues in this issue of the Lancet Infectious Diseases tested the combined measurement of CRP, TRAIL, and IP-10, and found that this test distinguished bacterial from viral infections with a sensitivity of 86.7% and a specificity of 91.1%. This assay is significantly more effective than procalcitonin determinations in identifying the cause of infection because it improves the diagnostic classification of bacterial infections by 6.3% and of viral infections by 5.4%. However, by comparison with CRP, the CRP, TRAIL, and IP-10 combined assay is as effective at classifying bacterial cases, although it does improve the identification of patients with viral infections by 8.6%. Furthermore, it still has some limitations that currently preclude its routine use in clinical practice.

“First, the test requires advanced laboratory techniques and cannot be used outside hospitals. Second, the collected data came from a relatively small number of children, none of whom had an underlying disease that might modify host response to infection. Third – as in the case of all of the studies that have tried to differentiate bacterial and viral infection – the definition of cause of infection used in these studies varies. Finally, respiratory infections are frequently classified on the basis of clinical and radiological findings, and the results of a microbiological assessment of nasopharyngeal swabs.

“However, it is well known that the investigation into upper respiratory secretions in children can be confounding and lead to the erroneous classification of a lower respiratory disease, and that bacteria and viruses can simply be carried and could have no association with the cause of a disease. This means that future studies should confirm the results of host protein-based assays in larger study populations with various characteristics, and consider their cost to benefit ratios in relation to their real effect on reducing antibiotic use.”
 

Susanna Esposito, MD, and Nicola Principi, MD, are with the University of Milan. Their opinions are excerpted from a commentary on the article by Dr. van Houten et al. (Lancet Inf Dis. 2016 Dec. doi: 10.1016/S1473-3099(16)30536-9). They had no relevant financial disclosures.

Title
Study results are promising, but come with caveats
Study results are promising, but come with caveats

 

An assay designed to distinguish between bacterial and viral infections of the lower respiratory tract appears effective and shows promise for helping hospital physicians reduce overprescribing of antibiotics to children, a study showed.

“It is often not possible to differentiate between bacterial and nonbacterial disease on the basis of clinical judgment alone, [so] antibiotics are prescribed almost twice as often as required in children with acute respiratory tract infections in the USA,” wrote Chantal B. van Houten of the University Medical Centre Utrecht (the Netherlands) and associates in a study published in the Lancet Infectious Diseases.

The assay in question is called ImmunoXpert, which uses three biomarkers – tumor necrosis factor–related apoptosis-inducing ligand (TRAIL), interferon-gamma–induced protein-10 (IP-10), and C-reactive protein (CRP) – to determine if a lower respiratory tract infection has a viral or bacterial origin. A total of 777 subjects, aged 2-60 months, were recruited from four hospitals in the Netherlands and two hospitals in Israel between October 16, 2013, and March 1, 2015 (Lancet Inf Dis. 2016 Dec. doi: 10.1016/S1473-3099(16)30519-9).

The patients all had fevers with unidentified sources when they presented, and had a follow-up assessment carried out 28 days after baseline. Blood samples and nasal swabs were collected within 24 hours of presentation for assay analysis. Additionally, every subject was diagnosed as “bacterial” or “viral” by a three-member panel of pediatricians, whose diagnoses were based on the data available from the follow-up assessment and from clinical and laboratory data. The panel diagnosis for each subject was used as the reference standard.

Of the 777 subjects initially recruited, 200 were excluded from the final analysis for various reasons. Of the 577 who remained, the panel diagnosed 435 as having a viral infection and 71 as having a bacterial infection; 71 were deemed “inconclusive.” The panel was unanimous in 354 of these cases, and a majority of the panel (two of the three experts) agreed in 443 of these cases. In unanimous cases, the sensitivity of distinguishing between viral and bacterial cases correctly was 87.8%, with a specificity of 93.0%. The panel’s positive and negative predictive value were 62.1% and 98.3%, respectively.

The assay’s sensitivity rate in distinguishing between viral and bacterial infections was very close: 86.7%, with a specificity of 91.1%, which the authors noted was “promising diagnostic accuracy.” The positive predictive value of the assay was 60.5%, while the negative predictive value was found to be 97.8%.

Regarding the 71 cases that were deemed “inconclusive,” Dr. van Houten and coauthors acknowledged that “such inconclusive cases are inherent to studies without a gold standard, and this was taken into account when calculating the sample size.” Additionally, they noted that follow-up studies should take into consideration the costs of utilizing assay testing like ImmunoXpert, in order to better assess the financial implications that adopting the technology would have on a health care facility.

Nevertheless, the investigators concluded, “our findings [support] the need for implementation research to examine the added clinical utility of ImmunoXpert to diagnose bacterial infection in clinical care for children with lower respiratory tract infection and fever without source presenting at the hospital.”

Funding for this study was provided by MeMed Diagnostics. Dr. van Houten and coauthors did not report any relevant financial disclosures.

 

An assay designed to distinguish between bacterial and viral infections of the lower respiratory tract appears effective and shows promise for helping hospital physicians reduce overprescribing of antibiotics to children, a study showed.

“It is often not possible to differentiate between bacterial and nonbacterial disease on the basis of clinical judgment alone, [so] antibiotics are prescribed almost twice as often as required in children with acute respiratory tract infections in the USA,” wrote Chantal B. van Houten of the University Medical Centre Utrecht (the Netherlands) and associates in a study published in the Lancet Infectious Diseases.

The assay in question is called ImmunoXpert, which uses three biomarkers – tumor necrosis factor–related apoptosis-inducing ligand (TRAIL), interferon-gamma–induced protein-10 (IP-10), and C-reactive protein (CRP) – to determine if a lower respiratory tract infection has a viral or bacterial origin. A total of 777 subjects, aged 2-60 months, were recruited from four hospitals in the Netherlands and two hospitals in Israel between October 16, 2013, and March 1, 2015 (Lancet Inf Dis. 2016 Dec. doi: 10.1016/S1473-3099(16)30519-9).

The patients all had fevers with unidentified sources when they presented, and had a follow-up assessment carried out 28 days after baseline. Blood samples and nasal swabs were collected within 24 hours of presentation for assay analysis. Additionally, every subject was diagnosed as “bacterial” or “viral” by a three-member panel of pediatricians, whose diagnoses were based on the data available from the follow-up assessment and from clinical and laboratory data. The panel diagnosis for each subject was used as the reference standard.

Of the 777 subjects initially recruited, 200 were excluded from the final analysis for various reasons. Of the 577 who remained, the panel diagnosed 435 as having a viral infection and 71 as having a bacterial infection; 71 were deemed “inconclusive.” The panel was unanimous in 354 of these cases, and a majority of the panel (two of the three experts) agreed in 443 of these cases. In unanimous cases, the sensitivity of distinguishing between viral and bacterial cases correctly was 87.8%, with a specificity of 93.0%. The panel’s positive and negative predictive value were 62.1% and 98.3%, respectively.

The assay’s sensitivity rate in distinguishing between viral and bacterial infections was very close: 86.7%, with a specificity of 91.1%, which the authors noted was “promising diagnostic accuracy.” The positive predictive value of the assay was 60.5%, while the negative predictive value was found to be 97.8%.

Regarding the 71 cases that were deemed “inconclusive,” Dr. van Houten and coauthors acknowledged that “such inconclusive cases are inherent to studies without a gold standard, and this was taken into account when calculating the sample size.” Additionally, they noted that follow-up studies should take into consideration the costs of utilizing assay testing like ImmunoXpert, in order to better assess the financial implications that adopting the technology would have on a health care facility.

Nevertheless, the investigators concluded, “our findings [support] the need for implementation research to examine the added clinical utility of ImmunoXpert to diagnose bacterial infection in clinical care for children with lower respiratory tract infection and fever without source presenting at the hospital.”

Funding for this study was provided by MeMed Diagnostics. Dr. van Houten and coauthors did not report any relevant financial disclosures.

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Key clinical point: Wrongly prescribing antibiotics to children may be mitigated by using new assay technology to identify bacterial and viral respiratory infections.

Major finding: The assay distinguished between bacterial and viral infections with 86.7% sensitivity, compared with unanimous panel diagnosis, which did so with 87.8% sensitivity.

Data source: A double-blind, multicenter, validation study of 577 children aged 2-60 months from October 2013 through March 2015.

Disclosures: The study was funded by MeMed Diagnostics. The authors reported no relevant financial disclosures.

How to limit radiation in endovascular procedures

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Wed, 04/03/2019 - 10:29

 

– Applying the key principles for limiting radiation exposure for vascular surgeons and staff – not to mention patients – during endovascular procedures involves a thorough understanding of dose metrics as well as risk factors for high-dose interventions, according to recent findings reported at a symposium on vascular surgery sponsored by Northwestern University.

 

 

Dr. Melissa Kirkwood
To achieve those results, UTSW employed a number of principles that include limiting fluoroscopy time, digital-acquisition runs and magnification, using tight collimation, keeping patient extremities from the x-ray beam, maximizing table height and patient distance from the radiation source, minimizing source-to-detector distance by lowering the image intensifier, using appropriate shielding, and monitoring dose.

Vigilance regarding these principles for vascular surgeons is paramount, Dr. Kirkwood said, noting that the National Council on Radiation Protection and Measurements threshold for substantial radiation dose is 5 Gy or greater. “When you’re doing complex endovascular work, your doses can get that high,” she said.

As a means of measuring dose, Dr. Kirkwood called fluoroscopy time a “universally poor indicator” because in current practice vascular surgeons use digital acquisition mode in addition to fluoroscopy. “The digital acquisitions generate 10-100 times more dose than fluoroscopy, so if you’re only looking at fluoroscopy time, your potentially missing the majority of the dose for that case,” she said.

More applicable dose measures, she said, are kerma area product that measures total radiation beam output from the x-ray tube, which she called “a better reflection of operator exposure,” and reference air kerma (RAK), a measure of the dose at a reference point 15 cm along the beam axis toward the focal spot from the isocenter, which she said is the best approximation for patient peak skin dose exposure. However, the latter does not account for angle of the x-ray tube or patient position, which can vary based on the type of procedure or the patient’s size.

Dr. Kirkwood’s work at UTSW also determined that operator exposure during an endovascular procedure depends on where they stand. “Doubling the distance from the source can decrease the radiation level by a factor of four,” she said. For femoral access in the right groin, the operator is at greatest risk for exposure followed by the assistant when the assistant is standing to the right of the operator. The left brachial access site carries an even higher exposure for the operator, she said.

The table-mounted lead skirt plays a key role in limiting operator exposure, Dr. Kirkwood said. “It can be cumbersome, but it is very important in lowering your lower-body dose,” she said, because it will block radiation scatter coming off the bottom of the table.

At UTSW, the endovascular operators had a tutorial with the staff medical physicist on best practices to limit radiation exposure. “What we found was that we were significantly able to decrease the dose across all cases by simply going over a few principles,” she said.

Among those principles: “Always be aware when you’re on the fluoroscopy pedal and always use the lowest fluoroscopy mode possible,” she said. However, she noted that in difficult-to-visualize cases, a short-duration boost in fluoroscopy level might reduce overall fluoroscopy time and hence limit exposure. To limit digital acquisition mode, the use of fluoroscopic looping can allow for review of images during the procedure with a fraction of the dose that would be needed for a digital acquisition run.

Limiting magnification and using collimation can be complementary, Dr. Kirkwood said. “If you really have to magnify to see the area of interest, make sure you have tight collimation to try to decrease the scatter to you and your colleagues in the OR,” she said.

Dr. Kirkwood noted that raising the angio table as high as is comfortable and decreasing the distance between the source and image detector can limit patient exposure. Operators should avoid steep angulations of the x-ray tube, she said, but when angulations are necessary, operators should stand on the opposite side of the x-ray tube. “The best operating practice if you know you’re going to have a high-dose case with a lot of gantry angulation would be to tightly collimate to the area of interest and minimize the magnification,” she said.

Though not necessarily a principle, keeping up with software advances for imaging devices can also prove valuable for limiting radiation exposure, Dr. Kirkwood said. “It’s important to know about them because if you are purchasing new equipment, they are not necessarily included if you’re institution is looking to hold down costs,” she said.

Dr. Kirkwood had no relevant financial disclosures.

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– Applying the key principles for limiting radiation exposure for vascular surgeons and staff – not to mention patients – during endovascular procedures involves a thorough understanding of dose metrics as well as risk factors for high-dose interventions, according to recent findings reported at a symposium on vascular surgery sponsored by Northwestern University.

 

 

Dr. Melissa Kirkwood
To achieve those results, UTSW employed a number of principles that include limiting fluoroscopy time, digital-acquisition runs and magnification, using tight collimation, keeping patient extremities from the x-ray beam, maximizing table height and patient distance from the radiation source, minimizing source-to-detector distance by lowering the image intensifier, using appropriate shielding, and monitoring dose.

Vigilance regarding these principles for vascular surgeons is paramount, Dr. Kirkwood said, noting that the National Council on Radiation Protection and Measurements threshold for substantial radiation dose is 5 Gy or greater. “When you’re doing complex endovascular work, your doses can get that high,” she said.

As a means of measuring dose, Dr. Kirkwood called fluoroscopy time a “universally poor indicator” because in current practice vascular surgeons use digital acquisition mode in addition to fluoroscopy. “The digital acquisitions generate 10-100 times more dose than fluoroscopy, so if you’re only looking at fluoroscopy time, your potentially missing the majority of the dose for that case,” she said.

More applicable dose measures, she said, are kerma area product that measures total radiation beam output from the x-ray tube, which she called “a better reflection of operator exposure,” and reference air kerma (RAK), a measure of the dose at a reference point 15 cm along the beam axis toward the focal spot from the isocenter, which she said is the best approximation for patient peak skin dose exposure. However, the latter does not account for angle of the x-ray tube or patient position, which can vary based on the type of procedure or the patient’s size.

Dr. Kirkwood’s work at UTSW also determined that operator exposure during an endovascular procedure depends on where they stand. “Doubling the distance from the source can decrease the radiation level by a factor of four,” she said. For femoral access in the right groin, the operator is at greatest risk for exposure followed by the assistant when the assistant is standing to the right of the operator. The left brachial access site carries an even higher exposure for the operator, she said.

The table-mounted lead skirt plays a key role in limiting operator exposure, Dr. Kirkwood said. “It can be cumbersome, but it is very important in lowering your lower-body dose,” she said, because it will block radiation scatter coming off the bottom of the table.

At UTSW, the endovascular operators had a tutorial with the staff medical physicist on best practices to limit radiation exposure. “What we found was that we were significantly able to decrease the dose across all cases by simply going over a few principles,” she said.

Among those principles: “Always be aware when you’re on the fluoroscopy pedal and always use the lowest fluoroscopy mode possible,” she said. However, she noted that in difficult-to-visualize cases, a short-duration boost in fluoroscopy level might reduce overall fluoroscopy time and hence limit exposure. To limit digital acquisition mode, the use of fluoroscopic looping can allow for review of images during the procedure with a fraction of the dose that would be needed for a digital acquisition run.

Limiting magnification and using collimation can be complementary, Dr. Kirkwood said. “If you really have to magnify to see the area of interest, make sure you have tight collimation to try to decrease the scatter to you and your colleagues in the OR,” she said.

Dr. Kirkwood noted that raising the angio table as high as is comfortable and decreasing the distance between the source and image detector can limit patient exposure. Operators should avoid steep angulations of the x-ray tube, she said, but when angulations are necessary, operators should stand on the opposite side of the x-ray tube. “The best operating practice if you know you’re going to have a high-dose case with a lot of gantry angulation would be to tightly collimate to the area of interest and minimize the magnification,” she said.

Though not necessarily a principle, keeping up with software advances for imaging devices can also prove valuable for limiting radiation exposure, Dr. Kirkwood said. “It’s important to know about them because if you are purchasing new equipment, they are not necessarily included if you’re institution is looking to hold down costs,” she said.

Dr. Kirkwood had no relevant financial disclosures.

 

– Applying the key principles for limiting radiation exposure for vascular surgeons and staff – not to mention patients – during endovascular procedures involves a thorough understanding of dose metrics as well as risk factors for high-dose interventions, according to recent findings reported at a symposium on vascular surgery sponsored by Northwestern University.

 

 

Dr. Melissa Kirkwood
To achieve those results, UTSW employed a number of principles that include limiting fluoroscopy time, digital-acquisition runs and magnification, using tight collimation, keeping patient extremities from the x-ray beam, maximizing table height and patient distance from the radiation source, minimizing source-to-detector distance by lowering the image intensifier, using appropriate shielding, and monitoring dose.

Vigilance regarding these principles for vascular surgeons is paramount, Dr. Kirkwood said, noting that the National Council on Radiation Protection and Measurements threshold for substantial radiation dose is 5 Gy or greater. “When you’re doing complex endovascular work, your doses can get that high,” she said.

As a means of measuring dose, Dr. Kirkwood called fluoroscopy time a “universally poor indicator” because in current practice vascular surgeons use digital acquisition mode in addition to fluoroscopy. “The digital acquisitions generate 10-100 times more dose than fluoroscopy, so if you’re only looking at fluoroscopy time, your potentially missing the majority of the dose for that case,” she said.

More applicable dose measures, she said, are kerma area product that measures total radiation beam output from the x-ray tube, which she called “a better reflection of operator exposure,” and reference air kerma (RAK), a measure of the dose at a reference point 15 cm along the beam axis toward the focal spot from the isocenter, which she said is the best approximation for patient peak skin dose exposure. However, the latter does not account for angle of the x-ray tube or patient position, which can vary based on the type of procedure or the patient’s size.

Dr. Kirkwood’s work at UTSW also determined that operator exposure during an endovascular procedure depends on where they stand. “Doubling the distance from the source can decrease the radiation level by a factor of four,” she said. For femoral access in the right groin, the operator is at greatest risk for exposure followed by the assistant when the assistant is standing to the right of the operator. The left brachial access site carries an even higher exposure for the operator, she said.

The table-mounted lead skirt plays a key role in limiting operator exposure, Dr. Kirkwood said. “It can be cumbersome, but it is very important in lowering your lower-body dose,” she said, because it will block radiation scatter coming off the bottom of the table.

At UTSW, the endovascular operators had a tutorial with the staff medical physicist on best practices to limit radiation exposure. “What we found was that we were significantly able to decrease the dose across all cases by simply going over a few principles,” she said.

Among those principles: “Always be aware when you’re on the fluoroscopy pedal and always use the lowest fluoroscopy mode possible,” she said. However, she noted that in difficult-to-visualize cases, a short-duration boost in fluoroscopy level might reduce overall fluoroscopy time and hence limit exposure. To limit digital acquisition mode, the use of fluoroscopic looping can allow for review of images during the procedure with a fraction of the dose that would be needed for a digital acquisition run.

Limiting magnification and using collimation can be complementary, Dr. Kirkwood said. “If you really have to magnify to see the area of interest, make sure you have tight collimation to try to decrease the scatter to you and your colleagues in the OR,” she said.

Dr. Kirkwood noted that raising the angio table as high as is comfortable and decreasing the distance between the source and image detector can limit patient exposure. Operators should avoid steep angulations of the x-ray tube, she said, but when angulations are necessary, operators should stand on the opposite side of the x-ray tube. “The best operating practice if you know you’re going to have a high-dose case with a lot of gantry angulation would be to tightly collimate to the area of interest and minimize the magnification,” she said.

Though not necessarily a principle, keeping up with software advances for imaging devices can also prove valuable for limiting radiation exposure, Dr. Kirkwood said. “It’s important to know about them because if you are purchasing new equipment, they are not necessarily included if you’re institution is looking to hold down costs,” she said.

Dr. Kirkwood had no relevant financial disclosures.

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Key clinical point: Vascular surgeons can lower their radiation exposure during endovascular procedures by employing key principles like appropriate shielding.

Major finding: Familiarity with dose terminology and metrics, possible radiation-induced injuries, and techniques to lower radiation dosing are keys to limiting radiation exposure.

Data source: Review of literature, including National Council on Radiation and Protection guidelines and National Cancer Institute grades of skin toxicity for radiation dermatitis.

Disclosures: Dr. Kirkwood had no financial relationships to disclose.