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Unnecessary pelvic exams, Pap tests common in young women
according to estimates from a study published online in JAMA Internal Medicine.
Approximately 2.6 million young women – about a quarter of those in this age group – reported receiving a pelvic exam in the previous year even though fewer than 10% were pregnant or receiving treatment for a sexually transmitted infection (STI) at the time.
Similarly, an estimated three in four Pap tests given to women aged 15-20 years likely were unnecessary. Based on Medicare payments for screening Pap tests and pelvic exams, the unnecessary procedures represented an estimated $123 million in a year.
“The American College of Obstetricians and Gynecologists recognizes that no evidence supports routine speculum examination or BPE in healthy, asymptomatic women younger than 21 years and recommends that these examinations be performed only when medically indicated,” said Jin Qin, ScD, of the Centers for Disease Control and Prevention and colleagues.
“Our results showed that, despite the recommendation, many young women without discernible medical indication received potentially unnecessary BPE or Pap tests, which may be a reflection of a long-standing clinical practice in the United States.”
These findings “demonstrate what happens to vulnerable populations (in this case, girls and young women) when clinicians do not keep up with or do not adhere to new guidelines,” Melissa A. Simon, MD, MPH, wrote in an invited commentary. She acknowledged the challenges of keeping up with new guidelines but noted the potential for harm from unnecessary screening. Dr. Simon is vice chair for clinical research in the department of obstetrics and gynecology at Northwestern University, Chicago.
The researchers analyzed responses from 3,410 young women aged 15-20 years in the National Survey of Family Growth (NSFG) during 2011-2017 and extrapolated the results to estimate nationwide statistics. The researchers found that 23% of young women – 2.6 million in the United States – had received a bimanual pelvic exam during the previous year.
“This analysis focused on the bimanual component of the pelvic examination because it is the most invasive of the pelvic examination components and less likely to be confused with a speculum examination for cervical cancer or STI screening,” the authors note.
More than half of these pelvic exams (54%) – an estimated 1.4 million exams – potentially were unnecessary. The authors classified these pelvic exams as potentially unnecessary if it was not indicated for pregnancy, intrauterine device (IUD) use, or STI treatment in the past 12 months or for another medical problem.
Among the respondents, 5% were pregnant, 22% had been tested for an STI, and 5% had been treated for an STI during the previous year. About a third of respondents (33%) had used at least one type of hormonal contraception besides an IUD in the past year, but only 2% had used an IUD.
Dr. Simon said that some have advocated for routine bimanual pelvic exams to prompt women to see their provider every year, but without evidence to support the practice.
“In fact, many women (younger and older) associate the bimanual pelvic and speculum examinations with fear, anxiety, embarrassment, discomfort, and pain,” Dr. Simon emphasized. “Girls and women with a history of sexual violence may be more vulnerable to these harms. In addition, adolescent girls may delay starting contraception use or obtaining screening for sexually transmitted infections because of fear of pelvic examination, which thus creates unnecessary barriers to obtaining important screening and family-planning methods.”
The researchers also found that 19% of young women, about 2.2 million, had received a Pap test in the previous year. The majority of these (72%) likely were unnecessary, they wrote, explaining that cervical cancer screening is not recommended for those younger than 21 years unless they are HIV positive and sexually active.
“Because HIV infection status is not available in the NSFG, we estimated prevalence of Pap tests performed as part of a routine examination and considered them potentially unnecessary,” the authors explained.
Young women were seven times more likely to have undergone a bimanual pelvic exam if they received a Pap test (adjusted prevalence ratio [aPR], 7.12). In fact, the authors reported that nearly all potentially unnecessary bimanual pelvic exams (98%) occurred during the same visit as a Pap test that was potentially unnecessary as well.
Young women also were more likely to receive a bimanual pelvic exam if they underwent STI testing or used any hormonal contraception besides an IUD (aPR, 1.6 and 1.31, respectively). Those with public insurance or no insurance were less likely to receive a pelvic exam compared with those who had private insurance, although no associations were found with race/ethnicity.
Young women were about four times more likely to have a Pap test if they had STI testing (aPR, 3.77). Odds of a Pap test also were greater among those aged 18-20 years (aPR, 1.54), those with a pregnancy (aPR, 2.31), those with an IUD (aPR, 1.54), and those using any non-IUD hormonal contraception (aPR, 1.75).
Staying up to date on current guidelines and consistently delivering evidence-based care according to those guidelines “is not easy,” Dr. Simon commented. It involves building and maintaining a trusting clinician-patient relationship that centers on shared decision making, keeping up with research, and “unlearn[ing] deeply ingrained practices,” which is difficult.
“Clinicians are not well instructed on how to pivot or unlearn a practice,” Dr. Simon continued. “The science of deimplementation, especially with respect to guideline-concordant care, is in its infancy.” She also noted the value of annual visits, even without routine pelvic exams.
“Rethinking the goals of the annual health examination for young women and learning to unlearn will not put anyone out of business,” Dr. Simon concluded. “Rather, change can increase patients’ connectivity, trust, and engagement with primary care clinicians and, most importantly, avoid harms, especially to those who are most vulnerable.”
No external funding was used. The study authors and Dr. Simon have disclosed no relevant financial relationships.
SOURCE: Qin J et al. JAMA Intern Med. 2019 Jan 6. doi: 10.1001/jamainternmed.2019.5727.
An earlier version of this story appeared on Medscape.com.
A call for shared decision making
The experts who wrote American College of Obstetricians and Gynecologists’ clinical guideline on the pelvic exam (Obstet Gynecol. 2018 Oct;132[4]:e174-80) reviewed available evidence and found insufficient evidence to support routine screening for asymptomatic nonpregnant women who have no increased risk for specific gynecologic conditions (e.g., history of gynecologic cancer). Hence, ACOG recommends routine screening based on a shared decision between the asymptomatic woman and her doctor keeping in mind her medical and family history and her preference. This decision should be made after reviewing the limitations of the exam with regard to insufficient evidence to support its accuracy in screening for ovarian cancer, bacterial vaginosis, trichomoniasis, and genital herpes, plus lack of evidence for other gynecologic conditions.
In addition, we physicians must educate women, especially vulnerable populations, that deferring a pelvic exam for asymptomatic women entails judicious care. Deferring an exam does not mean that we are withholding medical care. If she wants an exam, understanding its limitations, then this preference is an indication itself for the exam as stated in our guideline.
It is important to emphasize to patients that we are deferring Pap smears until age 21 years per ACOG and the American Society for Colposcopy and Cervical Pathology, and that there is no need for a pelvic exam for sexually transmitted infection screening per the Centers for Disease Control and Prevention. Likewise, there is no need for a pelvic exam prior initiation of contraception except for intrauterine device insertion also according to the CDC.
Catherine Cansino, MD, MPH , is associate clinical professor of obstetrics and gynecology at the University of California, Davis. She was asked to comment on the Qin et al. article. Dr. Cansino is a coauthor of the ACOG 2018 guideline on the utility of pelvic exam. She also is a member of the Ob.Gyn. News editorial advisory board. She reported no relevant financial disclosures.
A call for shared decision making
The experts who wrote American College of Obstetricians and Gynecologists’ clinical guideline on the pelvic exam (Obstet Gynecol. 2018 Oct;132[4]:e174-80) reviewed available evidence and found insufficient evidence to support routine screening for asymptomatic nonpregnant women who have no increased risk for specific gynecologic conditions (e.g., history of gynecologic cancer). Hence, ACOG recommends routine screening based on a shared decision between the asymptomatic woman and her doctor keeping in mind her medical and family history and her preference. This decision should be made after reviewing the limitations of the exam with regard to insufficient evidence to support its accuracy in screening for ovarian cancer, bacterial vaginosis, trichomoniasis, and genital herpes, plus lack of evidence for other gynecologic conditions.
In addition, we physicians must educate women, especially vulnerable populations, that deferring a pelvic exam for asymptomatic women entails judicious care. Deferring an exam does not mean that we are withholding medical care. If she wants an exam, understanding its limitations, then this preference is an indication itself for the exam as stated in our guideline.
It is important to emphasize to patients that we are deferring Pap smears until age 21 years per ACOG and the American Society for Colposcopy and Cervical Pathology, and that there is no need for a pelvic exam for sexually transmitted infection screening per the Centers for Disease Control and Prevention. Likewise, there is no need for a pelvic exam prior initiation of contraception except for intrauterine device insertion also according to the CDC.
Catherine Cansino, MD, MPH , is associate clinical professor of obstetrics and gynecology at the University of California, Davis. She was asked to comment on the Qin et al. article. Dr. Cansino is a coauthor of the ACOG 2018 guideline on the utility of pelvic exam. She also is a member of the Ob.Gyn. News editorial advisory board. She reported no relevant financial disclosures.
A call for shared decision making
The experts who wrote American College of Obstetricians and Gynecologists’ clinical guideline on the pelvic exam (Obstet Gynecol. 2018 Oct;132[4]:e174-80) reviewed available evidence and found insufficient evidence to support routine screening for asymptomatic nonpregnant women who have no increased risk for specific gynecologic conditions (e.g., history of gynecologic cancer). Hence, ACOG recommends routine screening based on a shared decision between the asymptomatic woman and her doctor keeping in mind her medical and family history and her preference. This decision should be made after reviewing the limitations of the exam with regard to insufficient evidence to support its accuracy in screening for ovarian cancer, bacterial vaginosis, trichomoniasis, and genital herpes, plus lack of evidence for other gynecologic conditions.
In addition, we physicians must educate women, especially vulnerable populations, that deferring a pelvic exam for asymptomatic women entails judicious care. Deferring an exam does not mean that we are withholding medical care. If she wants an exam, understanding its limitations, then this preference is an indication itself for the exam as stated in our guideline.
It is important to emphasize to patients that we are deferring Pap smears until age 21 years per ACOG and the American Society for Colposcopy and Cervical Pathology, and that there is no need for a pelvic exam for sexually transmitted infection screening per the Centers for Disease Control and Prevention. Likewise, there is no need for a pelvic exam prior initiation of contraception except for intrauterine device insertion also according to the CDC.
Catherine Cansino, MD, MPH , is associate clinical professor of obstetrics and gynecology at the University of California, Davis. She was asked to comment on the Qin et al. article. Dr. Cansino is a coauthor of the ACOG 2018 guideline on the utility of pelvic exam. She also is a member of the Ob.Gyn. News editorial advisory board. She reported no relevant financial disclosures.
according to estimates from a study published online in JAMA Internal Medicine.
Approximately 2.6 million young women – about a quarter of those in this age group – reported receiving a pelvic exam in the previous year even though fewer than 10% were pregnant or receiving treatment for a sexually transmitted infection (STI) at the time.
Similarly, an estimated three in four Pap tests given to women aged 15-20 years likely were unnecessary. Based on Medicare payments for screening Pap tests and pelvic exams, the unnecessary procedures represented an estimated $123 million in a year.
“The American College of Obstetricians and Gynecologists recognizes that no evidence supports routine speculum examination or BPE in healthy, asymptomatic women younger than 21 years and recommends that these examinations be performed only when medically indicated,” said Jin Qin, ScD, of the Centers for Disease Control and Prevention and colleagues.
“Our results showed that, despite the recommendation, many young women without discernible medical indication received potentially unnecessary BPE or Pap tests, which may be a reflection of a long-standing clinical practice in the United States.”
These findings “demonstrate what happens to vulnerable populations (in this case, girls and young women) when clinicians do not keep up with or do not adhere to new guidelines,” Melissa A. Simon, MD, MPH, wrote in an invited commentary. She acknowledged the challenges of keeping up with new guidelines but noted the potential for harm from unnecessary screening. Dr. Simon is vice chair for clinical research in the department of obstetrics and gynecology at Northwestern University, Chicago.
The researchers analyzed responses from 3,410 young women aged 15-20 years in the National Survey of Family Growth (NSFG) during 2011-2017 and extrapolated the results to estimate nationwide statistics. The researchers found that 23% of young women – 2.6 million in the United States – had received a bimanual pelvic exam during the previous year.
“This analysis focused on the bimanual component of the pelvic examination because it is the most invasive of the pelvic examination components and less likely to be confused with a speculum examination for cervical cancer or STI screening,” the authors note.
More than half of these pelvic exams (54%) – an estimated 1.4 million exams – potentially were unnecessary. The authors classified these pelvic exams as potentially unnecessary if it was not indicated for pregnancy, intrauterine device (IUD) use, or STI treatment in the past 12 months or for another medical problem.
Among the respondents, 5% were pregnant, 22% had been tested for an STI, and 5% had been treated for an STI during the previous year. About a third of respondents (33%) had used at least one type of hormonal contraception besides an IUD in the past year, but only 2% had used an IUD.
Dr. Simon said that some have advocated for routine bimanual pelvic exams to prompt women to see their provider every year, but without evidence to support the practice.
“In fact, many women (younger and older) associate the bimanual pelvic and speculum examinations with fear, anxiety, embarrassment, discomfort, and pain,” Dr. Simon emphasized. “Girls and women with a history of sexual violence may be more vulnerable to these harms. In addition, adolescent girls may delay starting contraception use or obtaining screening for sexually transmitted infections because of fear of pelvic examination, which thus creates unnecessary barriers to obtaining important screening and family-planning methods.”
The researchers also found that 19% of young women, about 2.2 million, had received a Pap test in the previous year. The majority of these (72%) likely were unnecessary, they wrote, explaining that cervical cancer screening is not recommended for those younger than 21 years unless they are HIV positive and sexually active.
“Because HIV infection status is not available in the NSFG, we estimated prevalence of Pap tests performed as part of a routine examination and considered them potentially unnecessary,” the authors explained.
Young women were seven times more likely to have undergone a bimanual pelvic exam if they received a Pap test (adjusted prevalence ratio [aPR], 7.12). In fact, the authors reported that nearly all potentially unnecessary bimanual pelvic exams (98%) occurred during the same visit as a Pap test that was potentially unnecessary as well.
Young women also were more likely to receive a bimanual pelvic exam if they underwent STI testing or used any hormonal contraception besides an IUD (aPR, 1.6 and 1.31, respectively). Those with public insurance or no insurance were less likely to receive a pelvic exam compared with those who had private insurance, although no associations were found with race/ethnicity.
Young women were about four times more likely to have a Pap test if they had STI testing (aPR, 3.77). Odds of a Pap test also were greater among those aged 18-20 years (aPR, 1.54), those with a pregnancy (aPR, 2.31), those with an IUD (aPR, 1.54), and those using any non-IUD hormonal contraception (aPR, 1.75).
Staying up to date on current guidelines and consistently delivering evidence-based care according to those guidelines “is not easy,” Dr. Simon commented. It involves building and maintaining a trusting clinician-patient relationship that centers on shared decision making, keeping up with research, and “unlearn[ing] deeply ingrained practices,” which is difficult.
“Clinicians are not well instructed on how to pivot or unlearn a practice,” Dr. Simon continued. “The science of deimplementation, especially with respect to guideline-concordant care, is in its infancy.” She also noted the value of annual visits, even without routine pelvic exams.
“Rethinking the goals of the annual health examination for young women and learning to unlearn will not put anyone out of business,” Dr. Simon concluded. “Rather, change can increase patients’ connectivity, trust, and engagement with primary care clinicians and, most importantly, avoid harms, especially to those who are most vulnerable.”
No external funding was used. The study authors and Dr. Simon have disclosed no relevant financial relationships.
SOURCE: Qin J et al. JAMA Intern Med. 2019 Jan 6. doi: 10.1001/jamainternmed.2019.5727.
An earlier version of this story appeared on Medscape.com.
according to estimates from a study published online in JAMA Internal Medicine.
Approximately 2.6 million young women – about a quarter of those in this age group – reported receiving a pelvic exam in the previous year even though fewer than 10% were pregnant or receiving treatment for a sexually transmitted infection (STI) at the time.
Similarly, an estimated three in four Pap tests given to women aged 15-20 years likely were unnecessary. Based on Medicare payments for screening Pap tests and pelvic exams, the unnecessary procedures represented an estimated $123 million in a year.
“The American College of Obstetricians and Gynecologists recognizes that no evidence supports routine speculum examination or BPE in healthy, asymptomatic women younger than 21 years and recommends that these examinations be performed only when medically indicated,” said Jin Qin, ScD, of the Centers for Disease Control and Prevention and colleagues.
“Our results showed that, despite the recommendation, many young women without discernible medical indication received potentially unnecessary BPE or Pap tests, which may be a reflection of a long-standing clinical practice in the United States.”
These findings “demonstrate what happens to vulnerable populations (in this case, girls and young women) when clinicians do not keep up with or do not adhere to new guidelines,” Melissa A. Simon, MD, MPH, wrote in an invited commentary. She acknowledged the challenges of keeping up with new guidelines but noted the potential for harm from unnecessary screening. Dr. Simon is vice chair for clinical research in the department of obstetrics and gynecology at Northwestern University, Chicago.
The researchers analyzed responses from 3,410 young women aged 15-20 years in the National Survey of Family Growth (NSFG) during 2011-2017 and extrapolated the results to estimate nationwide statistics. The researchers found that 23% of young women – 2.6 million in the United States – had received a bimanual pelvic exam during the previous year.
“This analysis focused on the bimanual component of the pelvic examination because it is the most invasive of the pelvic examination components and less likely to be confused with a speculum examination for cervical cancer or STI screening,” the authors note.
More than half of these pelvic exams (54%) – an estimated 1.4 million exams – potentially were unnecessary. The authors classified these pelvic exams as potentially unnecessary if it was not indicated for pregnancy, intrauterine device (IUD) use, or STI treatment in the past 12 months or for another medical problem.
Among the respondents, 5% were pregnant, 22% had been tested for an STI, and 5% had been treated for an STI during the previous year. About a third of respondents (33%) had used at least one type of hormonal contraception besides an IUD in the past year, but only 2% had used an IUD.
Dr. Simon said that some have advocated for routine bimanual pelvic exams to prompt women to see their provider every year, but without evidence to support the practice.
“In fact, many women (younger and older) associate the bimanual pelvic and speculum examinations with fear, anxiety, embarrassment, discomfort, and pain,” Dr. Simon emphasized. “Girls and women with a history of sexual violence may be more vulnerable to these harms. In addition, adolescent girls may delay starting contraception use or obtaining screening for sexually transmitted infections because of fear of pelvic examination, which thus creates unnecessary barriers to obtaining important screening and family-planning methods.”
The researchers also found that 19% of young women, about 2.2 million, had received a Pap test in the previous year. The majority of these (72%) likely were unnecessary, they wrote, explaining that cervical cancer screening is not recommended for those younger than 21 years unless they are HIV positive and sexually active.
“Because HIV infection status is not available in the NSFG, we estimated prevalence of Pap tests performed as part of a routine examination and considered them potentially unnecessary,” the authors explained.
Young women were seven times more likely to have undergone a bimanual pelvic exam if they received a Pap test (adjusted prevalence ratio [aPR], 7.12). In fact, the authors reported that nearly all potentially unnecessary bimanual pelvic exams (98%) occurred during the same visit as a Pap test that was potentially unnecessary as well.
Young women also were more likely to receive a bimanual pelvic exam if they underwent STI testing or used any hormonal contraception besides an IUD (aPR, 1.6 and 1.31, respectively). Those with public insurance or no insurance were less likely to receive a pelvic exam compared with those who had private insurance, although no associations were found with race/ethnicity.
Young women were about four times more likely to have a Pap test if they had STI testing (aPR, 3.77). Odds of a Pap test also were greater among those aged 18-20 years (aPR, 1.54), those with a pregnancy (aPR, 2.31), those with an IUD (aPR, 1.54), and those using any non-IUD hormonal contraception (aPR, 1.75).
Staying up to date on current guidelines and consistently delivering evidence-based care according to those guidelines “is not easy,” Dr. Simon commented. It involves building and maintaining a trusting clinician-patient relationship that centers on shared decision making, keeping up with research, and “unlearn[ing] deeply ingrained practices,” which is difficult.
“Clinicians are not well instructed on how to pivot or unlearn a practice,” Dr. Simon continued. “The science of deimplementation, especially with respect to guideline-concordant care, is in its infancy.” She also noted the value of annual visits, even without routine pelvic exams.
“Rethinking the goals of the annual health examination for young women and learning to unlearn will not put anyone out of business,” Dr. Simon concluded. “Rather, change can increase patients’ connectivity, trust, and engagement with primary care clinicians and, most importantly, avoid harms, especially to those who are most vulnerable.”
No external funding was used. The study authors and Dr. Simon have disclosed no relevant financial relationships.
SOURCE: Qin J et al. JAMA Intern Med. 2019 Jan 6. doi: 10.1001/jamainternmed.2019.5727.
An earlier version of this story appeared on Medscape.com.
ID consult for Candida bloodstream infections can reduce mortality risk
findings from a large retrospective study suggest.
Mortality attributable to Candida bloodstream infection ranges between 15% and 47%, and delay in initiation of appropriate treatment has been associated with increased mortality. Previous small studies showed that ID consultation has conferred benefits to patients with Candida bloodstream infections. Carlos Mejia-Chew, MD, and colleagues from Washington University, St. Louis, sought to explore this further by performing a retrospective, single-center cohort study of 1,691 patients aged 18 years or older with Candida bloodstream infection from 2002 to 2015. They analyzed demographics, comorbidities, predisposing factors, all-cause mortality, antifungal use, central-line removal, and ophthalmological and echocardiographic evaluation in order to compare 90-day all-cause mortality between individuals with and without an ID consultation.
They found that those patients who received an ID consult for a Candida bloodstream infection had a significantly lower 90-day mortality rate than did those who did not (29% vs. 51%).
With a model using inverse weighting by the propensity score, they found that ID consultation was associated with a hazard ratio of 0.81 for mortality (95% confidence interval, 0.73-0.91; P less than .0001). In the ID consultation group, the median duration of antifungal therapy was significantly longer (18 vs. 14 days; P less than .0001); central-line removal was significantly more common (76% vs. 59%; P less than .0001); echocardiography use was more frequent (57% vs. 33%; P less than .0001); and ophthalmological examinations were performed more often (53% vs. 17%; P less than .0001). Importantly, fewer patients in the ID consultation group were untreated (2% vs. 14%; P less than .0001).
In an accompanying commentary, Katrien Lagrou, MD, and Eric Van Wijngaerden, MD, of the department of microbiology, immunology and transplantation, University Hospitals Leuven (Belgium) stated: “We think that the high proportion of patients (14%) with a Candida bloodstream infection who did not receive any antifungal treatment and did not have an infectious disease consultation is a particularly alarming finding. ... Ninety-day mortality in these untreated patients was high (67%).”
“We believe every hospital should have an expert management strategy addressing all individual cases of candidaemia. The need for such expert management should be incorporated in all future candidaemia management guidelines,” they concluded.
The study was funded by the Astellas Global Development Pharma, the Washington University Institute of Clinical and Translational Sciences, and the Agency for Healthcare Research and Quality. Several of the authors had financial connections to Astellas Global Development or other pharmaceutical companies. Dr. Lagrou and Dr. Van Wijngaerden both reported receiving personal fees and nonfinancial support from a number of pharmaceutical companies, but all outside the scope of the study.
SOURCE: Mejia-Chew C et al. Lancet Infect Dis. 2019;19:1336-44.
findings from a large retrospective study suggest.
Mortality attributable to Candida bloodstream infection ranges between 15% and 47%, and delay in initiation of appropriate treatment has been associated with increased mortality. Previous small studies showed that ID consultation has conferred benefits to patients with Candida bloodstream infections. Carlos Mejia-Chew, MD, and colleagues from Washington University, St. Louis, sought to explore this further by performing a retrospective, single-center cohort study of 1,691 patients aged 18 years or older with Candida bloodstream infection from 2002 to 2015. They analyzed demographics, comorbidities, predisposing factors, all-cause mortality, antifungal use, central-line removal, and ophthalmological and echocardiographic evaluation in order to compare 90-day all-cause mortality between individuals with and without an ID consultation.
They found that those patients who received an ID consult for a Candida bloodstream infection had a significantly lower 90-day mortality rate than did those who did not (29% vs. 51%).
With a model using inverse weighting by the propensity score, they found that ID consultation was associated with a hazard ratio of 0.81 for mortality (95% confidence interval, 0.73-0.91; P less than .0001). In the ID consultation group, the median duration of antifungal therapy was significantly longer (18 vs. 14 days; P less than .0001); central-line removal was significantly more common (76% vs. 59%; P less than .0001); echocardiography use was more frequent (57% vs. 33%; P less than .0001); and ophthalmological examinations were performed more often (53% vs. 17%; P less than .0001). Importantly, fewer patients in the ID consultation group were untreated (2% vs. 14%; P less than .0001).
In an accompanying commentary, Katrien Lagrou, MD, and Eric Van Wijngaerden, MD, of the department of microbiology, immunology and transplantation, University Hospitals Leuven (Belgium) stated: “We think that the high proportion of patients (14%) with a Candida bloodstream infection who did not receive any antifungal treatment and did not have an infectious disease consultation is a particularly alarming finding. ... Ninety-day mortality in these untreated patients was high (67%).”
“We believe every hospital should have an expert management strategy addressing all individual cases of candidaemia. The need for such expert management should be incorporated in all future candidaemia management guidelines,” they concluded.
The study was funded by the Astellas Global Development Pharma, the Washington University Institute of Clinical and Translational Sciences, and the Agency for Healthcare Research and Quality. Several of the authors had financial connections to Astellas Global Development or other pharmaceutical companies. Dr. Lagrou and Dr. Van Wijngaerden both reported receiving personal fees and nonfinancial support from a number of pharmaceutical companies, but all outside the scope of the study.
SOURCE: Mejia-Chew C et al. Lancet Infect Dis. 2019;19:1336-44.
findings from a large retrospective study suggest.
Mortality attributable to Candida bloodstream infection ranges between 15% and 47%, and delay in initiation of appropriate treatment has been associated with increased mortality. Previous small studies showed that ID consultation has conferred benefits to patients with Candida bloodstream infections. Carlos Mejia-Chew, MD, and colleagues from Washington University, St. Louis, sought to explore this further by performing a retrospective, single-center cohort study of 1,691 patients aged 18 years or older with Candida bloodstream infection from 2002 to 2015. They analyzed demographics, comorbidities, predisposing factors, all-cause mortality, antifungal use, central-line removal, and ophthalmological and echocardiographic evaluation in order to compare 90-day all-cause mortality between individuals with and without an ID consultation.
They found that those patients who received an ID consult for a Candida bloodstream infection had a significantly lower 90-day mortality rate than did those who did not (29% vs. 51%).
With a model using inverse weighting by the propensity score, they found that ID consultation was associated with a hazard ratio of 0.81 for mortality (95% confidence interval, 0.73-0.91; P less than .0001). In the ID consultation group, the median duration of antifungal therapy was significantly longer (18 vs. 14 days; P less than .0001); central-line removal was significantly more common (76% vs. 59%; P less than .0001); echocardiography use was more frequent (57% vs. 33%; P less than .0001); and ophthalmological examinations were performed more often (53% vs. 17%; P less than .0001). Importantly, fewer patients in the ID consultation group were untreated (2% vs. 14%; P less than .0001).
In an accompanying commentary, Katrien Lagrou, MD, and Eric Van Wijngaerden, MD, of the department of microbiology, immunology and transplantation, University Hospitals Leuven (Belgium) stated: “We think that the high proportion of patients (14%) with a Candida bloodstream infection who did not receive any antifungal treatment and did not have an infectious disease consultation is a particularly alarming finding. ... Ninety-day mortality in these untreated patients was high (67%).”
“We believe every hospital should have an expert management strategy addressing all individual cases of candidaemia. The need for such expert management should be incorporated in all future candidaemia management guidelines,” they concluded.
The study was funded by the Astellas Global Development Pharma, the Washington University Institute of Clinical and Translational Sciences, and the Agency for Healthcare Research and Quality. Several of the authors had financial connections to Astellas Global Development or other pharmaceutical companies. Dr. Lagrou and Dr. Van Wijngaerden both reported receiving personal fees and nonfinancial support from a number of pharmaceutical companies, but all outside the scope of the study.
SOURCE: Mejia-Chew C et al. Lancet Infect Dis. 2019;19:1336-44.
FROM LANCET: INFECTIOUS DISEASES
Why is AOM frequency decreasing in the pneumococcal conjugate vaccine era?
In 2000, pneumococcal conjugate vaccine 7 (PCV7) was introduced in the United States, and in 2010, PCV13 was introduced. When each of those vaccines were used, they reduced acute otitis media (AOM) incidence caused by the pneumococcal types included in the vaccines. In the time frame of those vaccine introductions, about one-third of AOM cases occurred because of pneumococci and half of those cases occurred because of strains expressing the serotypes in the two formulations of the vaccines. Efficacy is about 70% for AOM prevention for PCVs. The math matches clinical trial results that have shown about an 11%-12% reduction of all AOM attributable to PCVs. However, our group continues to do tympanocentesis to track the etiology of AOM, and we have reported that elimination of strains of pneumococci expressing capsular types included in the PCVs has been followed by emergence of replacement strains of pneumococci that express non-PCV capsules. We also have shown that Haemophilus influenzae has increased proportionally as a cause of AOM and is the most frequent cause of recurrent AOM. So what else is going on?
My colleague, Stephen I. Pelton, MD, – another ID Consult columnist – is a coauthor of a paper along with Ron Dagan, MD; Lauren Bakaletz, PhD; and Robert Cohen, MD, (all major figures in pneumococcal disease or AOM) that was published in Lancet Infectious Diseases (Dagan R et al. Lancet Infect Dis. 2016 Apr;16[4]:480-92.). They gathered evidence suggesting that prevention of early AOM episodes caused by pneumococci expressing PCV serotypes resulted in a reduction of subsequent complex cases caused by nonvaccine serotypes and other otopathogens. Thus, PCVs may have an impact on AOM indirectly attributable to vaccination.
However, the American Academy of Pediatrics made several recommendations in the 2004 and 2013 guidelines for diagnosis and management of AOM that had a remarkable impact in reducing the frequency that this infection is diagnosed and treated as well. The recommendations included:
- Stricter diagnostic criteria in 2004 that became more strict in 2013 requiring bulging of the eardrum.
- Introduction of “watchful waiting” as an option in management that possibly led to no antibiotic treatment.
- Introduction of delayed prescription of antibiotic when diagnosis was uncertain that possibly led to no antibiotic treatment.
- Endorsement of specific antibiotics with the greatest anticipated efficacy taking into consideration spectrum of activity, safety, and costs.
In the same general time frame, a second development occurred: The Centers for Disease Control and Prevention launched a national campaign to reduce unnecessary and inappropriate antibiotic use in an effort to reduce rising antibiotic resistance among bacteria. The public media and professional communication campaign emphasized that antibiotic treatment carried with it risks that should be considered by patients and clinicians.
Because of the AAP and CDC recommendations, clinicians diagnosed AOM less frequently, and they treated it less frequently. Parents of children took note of the fact that their children with viral upper respiratory infections suspected to have AOM were diagnosed with AOM less often; even when a diagnosis was made, an antibiotic was prescribed less often. Therefore, parents brought their children to clinicians less often when their child had a viral upper respiratory infections or when they suspected AOM.
In addition, guidelines endorsed specific antibiotics that had better efficacy in treatment of AOM. Therefore, when clinicians did treat the infection with antibiotics, they used more effective drugs resulting in fewer treatment failures. This gives the impression of less-frequent AOM as well.
Both universal PCV use and universal influenza vaccine use have been endorsed in recent years, and uptake of that recommendation has increased over time. Clinical trials have shown that influenza is a common virus associated with secondary bacterial AOM.
Lastly, returning to antibiotic use, we now increasingly appreciate the adverse effect on the natural microbiome of the nasopharynx and gut when antibiotics are given. Natural resistance provided by commensals is disrupted when antibiotics are given. This may allow otopathogens to colonize the nasopharynx more readily, an effect that may last for months after a single antibiotic course. We also appreciate more that the microbiome modulates our immune system favorably, so antibiotics that disrupt the microbiome may have an adverse effect on innate or adaptive immunity as well. These adverse consequences of antibiotic use on microbiome and immunity are reduced when less antibiotics are given to children, as has been occurring over the past 2 decades.
Dr. Pichichero is a specialist in pediatric infectious diseases and director of the Research Institute at Rochester (N.Y.) General Hospital. He said he had no relevent financial disclosures. Email him at [email protected].
In 2000, pneumococcal conjugate vaccine 7 (PCV7) was introduced in the United States, and in 2010, PCV13 was introduced. When each of those vaccines were used, they reduced acute otitis media (AOM) incidence caused by the pneumococcal types included in the vaccines. In the time frame of those vaccine introductions, about one-third of AOM cases occurred because of pneumococci and half of those cases occurred because of strains expressing the serotypes in the two formulations of the vaccines. Efficacy is about 70% for AOM prevention for PCVs. The math matches clinical trial results that have shown about an 11%-12% reduction of all AOM attributable to PCVs. However, our group continues to do tympanocentesis to track the etiology of AOM, and we have reported that elimination of strains of pneumococci expressing capsular types included in the PCVs has been followed by emergence of replacement strains of pneumococci that express non-PCV capsules. We also have shown that Haemophilus influenzae has increased proportionally as a cause of AOM and is the most frequent cause of recurrent AOM. So what else is going on?
My colleague, Stephen I. Pelton, MD, – another ID Consult columnist – is a coauthor of a paper along with Ron Dagan, MD; Lauren Bakaletz, PhD; and Robert Cohen, MD, (all major figures in pneumococcal disease or AOM) that was published in Lancet Infectious Diseases (Dagan R et al. Lancet Infect Dis. 2016 Apr;16[4]:480-92.). They gathered evidence suggesting that prevention of early AOM episodes caused by pneumococci expressing PCV serotypes resulted in a reduction of subsequent complex cases caused by nonvaccine serotypes and other otopathogens. Thus, PCVs may have an impact on AOM indirectly attributable to vaccination.
However, the American Academy of Pediatrics made several recommendations in the 2004 and 2013 guidelines for diagnosis and management of AOM that had a remarkable impact in reducing the frequency that this infection is diagnosed and treated as well. The recommendations included:
- Stricter diagnostic criteria in 2004 that became more strict in 2013 requiring bulging of the eardrum.
- Introduction of “watchful waiting” as an option in management that possibly led to no antibiotic treatment.
- Introduction of delayed prescription of antibiotic when diagnosis was uncertain that possibly led to no antibiotic treatment.
- Endorsement of specific antibiotics with the greatest anticipated efficacy taking into consideration spectrum of activity, safety, and costs.
In the same general time frame, a second development occurred: The Centers for Disease Control and Prevention launched a national campaign to reduce unnecessary and inappropriate antibiotic use in an effort to reduce rising antibiotic resistance among bacteria. The public media and professional communication campaign emphasized that antibiotic treatment carried with it risks that should be considered by patients and clinicians.
Because of the AAP and CDC recommendations, clinicians diagnosed AOM less frequently, and they treated it less frequently. Parents of children took note of the fact that their children with viral upper respiratory infections suspected to have AOM were diagnosed with AOM less often; even when a diagnosis was made, an antibiotic was prescribed less often. Therefore, parents brought their children to clinicians less often when their child had a viral upper respiratory infections or when they suspected AOM.
In addition, guidelines endorsed specific antibiotics that had better efficacy in treatment of AOM. Therefore, when clinicians did treat the infection with antibiotics, they used more effective drugs resulting in fewer treatment failures. This gives the impression of less-frequent AOM as well.
Both universal PCV use and universal influenza vaccine use have been endorsed in recent years, and uptake of that recommendation has increased over time. Clinical trials have shown that influenza is a common virus associated with secondary bacterial AOM.
Lastly, returning to antibiotic use, we now increasingly appreciate the adverse effect on the natural microbiome of the nasopharynx and gut when antibiotics are given. Natural resistance provided by commensals is disrupted when antibiotics are given. This may allow otopathogens to colonize the nasopharynx more readily, an effect that may last for months after a single antibiotic course. We also appreciate more that the microbiome modulates our immune system favorably, so antibiotics that disrupt the microbiome may have an adverse effect on innate or adaptive immunity as well. These adverse consequences of antibiotic use on microbiome and immunity are reduced when less antibiotics are given to children, as has been occurring over the past 2 decades.
Dr. Pichichero is a specialist in pediatric infectious diseases and director of the Research Institute at Rochester (N.Y.) General Hospital. He said he had no relevent financial disclosures. Email him at [email protected].
In 2000, pneumococcal conjugate vaccine 7 (PCV7) was introduced in the United States, and in 2010, PCV13 was introduced. When each of those vaccines were used, they reduced acute otitis media (AOM) incidence caused by the pneumococcal types included in the vaccines. In the time frame of those vaccine introductions, about one-third of AOM cases occurred because of pneumococci and half of those cases occurred because of strains expressing the serotypes in the two formulations of the vaccines. Efficacy is about 70% for AOM prevention for PCVs. The math matches clinical trial results that have shown about an 11%-12% reduction of all AOM attributable to PCVs. However, our group continues to do tympanocentesis to track the etiology of AOM, and we have reported that elimination of strains of pneumococci expressing capsular types included in the PCVs has been followed by emergence of replacement strains of pneumococci that express non-PCV capsules. We also have shown that Haemophilus influenzae has increased proportionally as a cause of AOM and is the most frequent cause of recurrent AOM. So what else is going on?
My colleague, Stephen I. Pelton, MD, – another ID Consult columnist – is a coauthor of a paper along with Ron Dagan, MD; Lauren Bakaletz, PhD; and Robert Cohen, MD, (all major figures in pneumococcal disease or AOM) that was published in Lancet Infectious Diseases (Dagan R et al. Lancet Infect Dis. 2016 Apr;16[4]:480-92.). They gathered evidence suggesting that prevention of early AOM episodes caused by pneumococci expressing PCV serotypes resulted in a reduction of subsequent complex cases caused by nonvaccine serotypes and other otopathogens. Thus, PCVs may have an impact on AOM indirectly attributable to vaccination.
However, the American Academy of Pediatrics made several recommendations in the 2004 and 2013 guidelines for diagnosis and management of AOM that had a remarkable impact in reducing the frequency that this infection is diagnosed and treated as well. The recommendations included:
- Stricter diagnostic criteria in 2004 that became more strict in 2013 requiring bulging of the eardrum.
- Introduction of “watchful waiting” as an option in management that possibly led to no antibiotic treatment.
- Introduction of delayed prescription of antibiotic when diagnosis was uncertain that possibly led to no antibiotic treatment.
- Endorsement of specific antibiotics with the greatest anticipated efficacy taking into consideration spectrum of activity, safety, and costs.
In the same general time frame, a second development occurred: The Centers for Disease Control and Prevention launched a national campaign to reduce unnecessary and inappropriate antibiotic use in an effort to reduce rising antibiotic resistance among bacteria. The public media and professional communication campaign emphasized that antibiotic treatment carried with it risks that should be considered by patients and clinicians.
Because of the AAP and CDC recommendations, clinicians diagnosed AOM less frequently, and they treated it less frequently. Parents of children took note of the fact that their children with viral upper respiratory infections suspected to have AOM were diagnosed with AOM less often; even when a diagnosis was made, an antibiotic was prescribed less often. Therefore, parents brought their children to clinicians less often when their child had a viral upper respiratory infections or when they suspected AOM.
In addition, guidelines endorsed specific antibiotics that had better efficacy in treatment of AOM. Therefore, when clinicians did treat the infection with antibiotics, they used more effective drugs resulting in fewer treatment failures. This gives the impression of less-frequent AOM as well.
Both universal PCV use and universal influenza vaccine use have been endorsed in recent years, and uptake of that recommendation has increased over time. Clinical trials have shown that influenza is a common virus associated with secondary bacterial AOM.
Lastly, returning to antibiotic use, we now increasingly appreciate the adverse effect on the natural microbiome of the nasopharynx and gut when antibiotics are given. Natural resistance provided by commensals is disrupted when antibiotics are given. This may allow otopathogens to colonize the nasopharynx more readily, an effect that may last for months after a single antibiotic course. We also appreciate more that the microbiome modulates our immune system favorably, so antibiotics that disrupt the microbiome may have an adverse effect on innate or adaptive immunity as well. These adverse consequences of antibiotic use on microbiome and immunity are reduced when less antibiotics are given to children, as has been occurring over the past 2 decades.
Dr. Pichichero is a specialist in pediatric infectious diseases and director of the Research Institute at Rochester (N.Y.) General Hospital. He said he had no relevent financial disclosures. Email him at [email protected].
Long-term entecavir looks safe, effective in HBV
For patients with chronic hepatitis B virus (HBV) infection, up to 10 years of treatment with entecavir was safe and produced a superior rate of sustained virologic response, compared with other HBV nucleoside or nucleotide analogues in a global randomized clinical trial.
Virologic responses were confirmed and maintained in 80% of entecavir patients and 61% of patients who received other therapies, said Jin-Lin Hou, MD, of Southern Medical University in Guangzhou, China, and associates. Regardless of which treatment patients received, a sustained virologic response was associated with a significantly lower rate of liver-related hepatitis B virus (HBV) disease progression and hepatocellular carcinoma. Rates of serious treatment-related adverse events were 0.2% in the entecavir arm and 0.8% in the nonentecavir arm. Moreover, the primary outcome of time-to-adjudicated clinical outcome events “showed that entecavir treatment, compared with nonentecavir, was not associated with an increased risk of malignant neoplasms, including hepatocellular carcinoma, nonhepatocellular carcinoma malignancies, and overall malignancies,” they wrote in Clinical Gastroenterology and Hepatology.
Entecavir is approved for the treatment of adults with chronic HBV infection, and its long-term use has been linked to the regression of hepatic fibrosis and cirrhosis. In treatment-naive patients, genotypic resistance and virologic breakthrough are rare even after up to 5 years of entecavir therapy. Although human studies have not linked this treatment duration with an increased risk of adverse events, murine studies have identified benign and malignant tumors of the brain, lung, and liver in entecavir-treated mice and rats. “With the exception of lung tumors, which were limited to male mice, rodent tumors occurred only at entecavir exposures [that were] significantly higher than those achieved in human beings with standard approved doses,” the researchers wrote.
For the trial, they assigned more than 12,000 patients with chronic HBV infection to receive long-term treatment with entecavir or investigators’ choice of another HBV nucleoside or nucleotide analogue. Patients were from 229 centers in Asia, Europe, and North and South America, and a total of 6,216 received entecavir, while 6,162 received another therapy.
Compared with other HBV nucleoside and nucleotide analogues, long-term treatment with entecavir “provided a high margin of safety” and was not tied to higher rates of liver or nonliver malignancies, the researchers found. The carcinogenicity of entecavir in rodents did not appear to extend to humans. Furthermore, among 5,305 trial participants in China, a sustained virologic response was associated with a clinically and statistically significant reduction in the risk of liver-related HBV disease progression (hazard ratio, 0.09; 95% CI, 0.04-0.22) and hepatocellular carcinoma (HR, 0.03; 95% CI, 0.009-0.113).
The results confirm the appropriateness of long-term entecavir therapy for chronic HBV infection, as recommended by current guidelines, Dr. Hou and associates concluded. However, patients in this trial were relatively young, with a median age of only 39 years. Therefore, the risk of entecavir-associated malignancies in older age cohorts could not be evaluated.
Bristol-Myers Squibb designed the study, performed statistical analyses, and funded the study and manuscript preparation. The Ministry of Science and Technology of China and the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program provided partial support. Dr. Hou disclosed grants and personal fees from Bristol-Myers Squibb, GlaxoSmithKline, and Novartis. Several coinvestigators also disclosed ties to Bristol-Myers Squibb and to several other pharmaceutical companies.
SOURCE: Hou J-L et al. Clin Gastroenterol Hepatol. 2019 Jul 12. doi: 10.1016/j.cgh.2019.07.010.
For patients with chronic hepatitis B virus (HBV) infection, up to 10 years of treatment with entecavir was safe and produced a superior rate of sustained virologic response, compared with other HBV nucleoside or nucleotide analogues in a global randomized clinical trial.
Virologic responses were confirmed and maintained in 80% of entecavir patients and 61% of patients who received other therapies, said Jin-Lin Hou, MD, of Southern Medical University in Guangzhou, China, and associates. Regardless of which treatment patients received, a sustained virologic response was associated with a significantly lower rate of liver-related hepatitis B virus (HBV) disease progression and hepatocellular carcinoma. Rates of serious treatment-related adverse events were 0.2% in the entecavir arm and 0.8% in the nonentecavir arm. Moreover, the primary outcome of time-to-adjudicated clinical outcome events “showed that entecavir treatment, compared with nonentecavir, was not associated with an increased risk of malignant neoplasms, including hepatocellular carcinoma, nonhepatocellular carcinoma malignancies, and overall malignancies,” they wrote in Clinical Gastroenterology and Hepatology.
Entecavir is approved for the treatment of adults with chronic HBV infection, and its long-term use has been linked to the regression of hepatic fibrosis and cirrhosis. In treatment-naive patients, genotypic resistance and virologic breakthrough are rare even after up to 5 years of entecavir therapy. Although human studies have not linked this treatment duration with an increased risk of adverse events, murine studies have identified benign and malignant tumors of the brain, lung, and liver in entecavir-treated mice and rats. “With the exception of lung tumors, which were limited to male mice, rodent tumors occurred only at entecavir exposures [that were] significantly higher than those achieved in human beings with standard approved doses,” the researchers wrote.
For the trial, they assigned more than 12,000 patients with chronic HBV infection to receive long-term treatment with entecavir or investigators’ choice of another HBV nucleoside or nucleotide analogue. Patients were from 229 centers in Asia, Europe, and North and South America, and a total of 6,216 received entecavir, while 6,162 received another therapy.
Compared with other HBV nucleoside and nucleotide analogues, long-term treatment with entecavir “provided a high margin of safety” and was not tied to higher rates of liver or nonliver malignancies, the researchers found. The carcinogenicity of entecavir in rodents did not appear to extend to humans. Furthermore, among 5,305 trial participants in China, a sustained virologic response was associated with a clinically and statistically significant reduction in the risk of liver-related HBV disease progression (hazard ratio, 0.09; 95% CI, 0.04-0.22) and hepatocellular carcinoma (HR, 0.03; 95% CI, 0.009-0.113).
The results confirm the appropriateness of long-term entecavir therapy for chronic HBV infection, as recommended by current guidelines, Dr. Hou and associates concluded. However, patients in this trial were relatively young, with a median age of only 39 years. Therefore, the risk of entecavir-associated malignancies in older age cohorts could not be evaluated.
Bristol-Myers Squibb designed the study, performed statistical analyses, and funded the study and manuscript preparation. The Ministry of Science and Technology of China and the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program provided partial support. Dr. Hou disclosed grants and personal fees from Bristol-Myers Squibb, GlaxoSmithKline, and Novartis. Several coinvestigators also disclosed ties to Bristol-Myers Squibb and to several other pharmaceutical companies.
SOURCE: Hou J-L et al. Clin Gastroenterol Hepatol. 2019 Jul 12. doi: 10.1016/j.cgh.2019.07.010.
For patients with chronic hepatitis B virus (HBV) infection, up to 10 years of treatment with entecavir was safe and produced a superior rate of sustained virologic response, compared with other HBV nucleoside or nucleotide analogues in a global randomized clinical trial.
Virologic responses were confirmed and maintained in 80% of entecavir patients and 61% of patients who received other therapies, said Jin-Lin Hou, MD, of Southern Medical University in Guangzhou, China, and associates. Regardless of which treatment patients received, a sustained virologic response was associated with a significantly lower rate of liver-related hepatitis B virus (HBV) disease progression and hepatocellular carcinoma. Rates of serious treatment-related adverse events were 0.2% in the entecavir arm and 0.8% in the nonentecavir arm. Moreover, the primary outcome of time-to-adjudicated clinical outcome events “showed that entecavir treatment, compared with nonentecavir, was not associated with an increased risk of malignant neoplasms, including hepatocellular carcinoma, nonhepatocellular carcinoma malignancies, and overall malignancies,” they wrote in Clinical Gastroenterology and Hepatology.
Entecavir is approved for the treatment of adults with chronic HBV infection, and its long-term use has been linked to the regression of hepatic fibrosis and cirrhosis. In treatment-naive patients, genotypic resistance and virologic breakthrough are rare even after up to 5 years of entecavir therapy. Although human studies have not linked this treatment duration with an increased risk of adverse events, murine studies have identified benign and malignant tumors of the brain, lung, and liver in entecavir-treated mice and rats. “With the exception of lung tumors, which were limited to male mice, rodent tumors occurred only at entecavir exposures [that were] significantly higher than those achieved in human beings with standard approved doses,” the researchers wrote.
For the trial, they assigned more than 12,000 patients with chronic HBV infection to receive long-term treatment with entecavir or investigators’ choice of another HBV nucleoside or nucleotide analogue. Patients were from 229 centers in Asia, Europe, and North and South America, and a total of 6,216 received entecavir, while 6,162 received another therapy.
Compared with other HBV nucleoside and nucleotide analogues, long-term treatment with entecavir “provided a high margin of safety” and was not tied to higher rates of liver or nonliver malignancies, the researchers found. The carcinogenicity of entecavir in rodents did not appear to extend to humans. Furthermore, among 5,305 trial participants in China, a sustained virologic response was associated with a clinically and statistically significant reduction in the risk of liver-related HBV disease progression (hazard ratio, 0.09; 95% CI, 0.04-0.22) and hepatocellular carcinoma (HR, 0.03; 95% CI, 0.009-0.113).
The results confirm the appropriateness of long-term entecavir therapy for chronic HBV infection, as recommended by current guidelines, Dr. Hou and associates concluded. However, patients in this trial were relatively young, with a median age of only 39 years. Therefore, the risk of entecavir-associated malignancies in older age cohorts could not be evaluated.
Bristol-Myers Squibb designed the study, performed statistical analyses, and funded the study and manuscript preparation. The Ministry of Science and Technology of China and the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program provided partial support. Dr. Hou disclosed grants and personal fees from Bristol-Myers Squibb, GlaxoSmithKline, and Novartis. Several coinvestigators also disclosed ties to Bristol-Myers Squibb and to several other pharmaceutical companies.
SOURCE: Hou J-L et al. Clin Gastroenterol Hepatol. 2019 Jul 12. doi: 10.1016/j.cgh.2019.07.010.
FROM CLINICAL GASTROENTEROLOGY AND HEPATOLOGY
Mystery pneumonia in China has health officials on alert
An according to a statement from the Centers for Disease Control and Prevention.
As of Jan. 5, 2020, 59 cases of the disease have been reported by the Wuhan Municipal Health Commission. The cluster of cases is linked to the Wuhan South China Seafood City market where – in addition to seafood – chickens, bats, marmots, and other animals were sold. That market has been closed since Jan. 1, 2020, for cleaning and disinfection.
Wuhan health authorities are closely monitoring over 150 contacts for symptoms. Laboratory results have been negative for influenza, avian influenza, adenovirus, and the viruses that caused SARS (severe acute respiratory syndrome) and MERS (Middle East respiratory syndrome). So far, there are no reports of person-to-person transmission or health care worker infection of this pneumonia.
The World Health Organization reported that, as of Dec. 31, 2019, about one-quarter of patients were severely ill with the pneumonia and the rest were stable. Symptoms reported include fever, difficulty breathing, and chest radiographs showing invasive lesions in both lungs. All patients are being treated in isolation and efforts to identify the pathogen are ongoing.
The WHO is monitoring the situation closely and is in close contact with Chinese health authorities.
The CDC has recommended that travelers to Wuhan, a city of over 19 million people, avoid animal and meat markets, avoid contact with sick people, and wash hands often with soap and water. Travelers who have been in Wuhan recently and who experience respiratory symptoms should notify the local health department immediately. In addition, the CDC has issued a Level 1 travel alert, which recommends travelers observe usual precautions against infectious disease.
In addition, the CDC recommends that, for symptomatic patients with a history of travel to Wuhan, caution should be exercised in the health care setting. “Ask such patients to don a surgical mask as soon as they are identified. Conduct their evaluation in a private room with the door closed. Personnel entering the room to evaluate the patient should use contact precautions and wear an N95 disposable facepiece respirator. For patients admitted for inpatient care, implement contact and airborne isolation precautions, in addition to standard precautions, until further information becomes available. For additional infection control guidance see: www.cdc.gov/infectioncontrol/guidelines/isolation/index.html.”
An according to a statement from the Centers for Disease Control and Prevention.
As of Jan. 5, 2020, 59 cases of the disease have been reported by the Wuhan Municipal Health Commission. The cluster of cases is linked to the Wuhan South China Seafood City market where – in addition to seafood – chickens, bats, marmots, and other animals were sold. That market has been closed since Jan. 1, 2020, for cleaning and disinfection.
Wuhan health authorities are closely monitoring over 150 contacts for symptoms. Laboratory results have been negative for influenza, avian influenza, adenovirus, and the viruses that caused SARS (severe acute respiratory syndrome) and MERS (Middle East respiratory syndrome). So far, there are no reports of person-to-person transmission or health care worker infection of this pneumonia.
The World Health Organization reported that, as of Dec. 31, 2019, about one-quarter of patients were severely ill with the pneumonia and the rest were stable. Symptoms reported include fever, difficulty breathing, and chest radiographs showing invasive lesions in both lungs. All patients are being treated in isolation and efforts to identify the pathogen are ongoing.
The WHO is monitoring the situation closely and is in close contact with Chinese health authorities.
The CDC has recommended that travelers to Wuhan, a city of over 19 million people, avoid animal and meat markets, avoid contact with sick people, and wash hands often with soap and water. Travelers who have been in Wuhan recently and who experience respiratory symptoms should notify the local health department immediately. In addition, the CDC has issued a Level 1 travel alert, which recommends travelers observe usual precautions against infectious disease.
In addition, the CDC recommends that, for symptomatic patients with a history of travel to Wuhan, caution should be exercised in the health care setting. “Ask such patients to don a surgical mask as soon as they are identified. Conduct their evaluation in a private room with the door closed. Personnel entering the room to evaluate the patient should use contact precautions and wear an N95 disposable facepiece respirator. For patients admitted for inpatient care, implement contact and airborne isolation precautions, in addition to standard precautions, until further information becomes available. For additional infection control guidance see: www.cdc.gov/infectioncontrol/guidelines/isolation/index.html.”
An according to a statement from the Centers for Disease Control and Prevention.
As of Jan. 5, 2020, 59 cases of the disease have been reported by the Wuhan Municipal Health Commission. The cluster of cases is linked to the Wuhan South China Seafood City market where – in addition to seafood – chickens, bats, marmots, and other animals were sold. That market has been closed since Jan. 1, 2020, for cleaning and disinfection.
Wuhan health authorities are closely monitoring over 150 contacts for symptoms. Laboratory results have been negative for influenza, avian influenza, adenovirus, and the viruses that caused SARS (severe acute respiratory syndrome) and MERS (Middle East respiratory syndrome). So far, there are no reports of person-to-person transmission or health care worker infection of this pneumonia.
The World Health Organization reported that, as of Dec. 31, 2019, about one-quarter of patients were severely ill with the pneumonia and the rest were stable. Symptoms reported include fever, difficulty breathing, and chest radiographs showing invasive lesions in both lungs. All patients are being treated in isolation and efforts to identify the pathogen are ongoing.
The WHO is monitoring the situation closely and is in close contact with Chinese health authorities.
The CDC has recommended that travelers to Wuhan, a city of over 19 million people, avoid animal and meat markets, avoid contact with sick people, and wash hands often with soap and water. Travelers who have been in Wuhan recently and who experience respiratory symptoms should notify the local health department immediately. In addition, the CDC has issued a Level 1 travel alert, which recommends travelers observe usual precautions against infectious disease.
In addition, the CDC recommends that, for symptomatic patients with a history of travel to Wuhan, caution should be exercised in the health care setting. “Ask such patients to don a surgical mask as soon as they are identified. Conduct their evaluation in a private room with the door closed. Personnel entering the room to evaluate the patient should use contact precautions and wear an N95 disposable facepiece respirator. For patients admitted for inpatient care, implement contact and airborne isolation precautions, in addition to standard precautions, until further information becomes available. For additional infection control guidance see: www.cdc.gov/infectioncontrol/guidelines/isolation/index.html.”
Flu records most active December since 2003
The 2019-2020 flu season took a big jump in severity during the last full week of 2019, according to the Centers for Disease Control and Prevention.
For the week ending Dec. 28, 6.9% of all outpatient visits to health care providers were for influenza-like illness (ILI), the CDC’s influenza division reported Jan. 3. That is up from 5.1% the previous week and is the highest rate recorded in December since 2003. During the flu pandemic season of 2009-2010, the rate peaked in October and dropped to relatively normal levels by the end of November, CDC data show.
This marks the eighth consecutive week that the outpatient visit rate has been at or above the nation’s baseline level of 2.4%, but the data for this week “may in part be influenced by changes in healthcare-seeking behavior that can occur during the holidays,” the CDC suggested.
All those outpatient visits mean that the ILI activity map is getting quite red. Thirty states, as well as the District of Columbia and Puerto Rico, were at the highest level on the CDC’s 1-10 activity scale during the week ending Dec. 28, compared with 20 the week before. Four states were categorized in the “high” range with activity levels of 8 and 9.
There have been approximately 6.4 million flu illnesses so far this season, the CDC estimated, along with 55,000 hospitalizations, although the ILI admission rate of 9.2 per 100,000 population is fairly typical for this time of year.
The week of Dec. 28 also brought reports of five more ILI-related pediatric deaths, which all occurred in the two previous weeks. A total of 27 children have died from the flu so far during the 2019-2020 season, the CDC said.
The 2019-2020 flu season took a big jump in severity during the last full week of 2019, according to the Centers for Disease Control and Prevention.
For the week ending Dec. 28, 6.9% of all outpatient visits to health care providers were for influenza-like illness (ILI), the CDC’s influenza division reported Jan. 3. That is up from 5.1% the previous week and is the highest rate recorded in December since 2003. During the flu pandemic season of 2009-2010, the rate peaked in October and dropped to relatively normal levels by the end of November, CDC data show.
This marks the eighth consecutive week that the outpatient visit rate has been at or above the nation’s baseline level of 2.4%, but the data for this week “may in part be influenced by changes in healthcare-seeking behavior that can occur during the holidays,” the CDC suggested.
All those outpatient visits mean that the ILI activity map is getting quite red. Thirty states, as well as the District of Columbia and Puerto Rico, were at the highest level on the CDC’s 1-10 activity scale during the week ending Dec. 28, compared with 20 the week before. Four states were categorized in the “high” range with activity levels of 8 and 9.
There have been approximately 6.4 million flu illnesses so far this season, the CDC estimated, along with 55,000 hospitalizations, although the ILI admission rate of 9.2 per 100,000 population is fairly typical for this time of year.
The week of Dec. 28 also brought reports of five more ILI-related pediatric deaths, which all occurred in the two previous weeks. A total of 27 children have died from the flu so far during the 2019-2020 season, the CDC said.
The 2019-2020 flu season took a big jump in severity during the last full week of 2019, according to the Centers for Disease Control and Prevention.
For the week ending Dec. 28, 6.9% of all outpatient visits to health care providers were for influenza-like illness (ILI), the CDC’s influenza division reported Jan. 3. That is up from 5.1% the previous week and is the highest rate recorded in December since 2003. During the flu pandemic season of 2009-2010, the rate peaked in October and dropped to relatively normal levels by the end of November, CDC data show.
This marks the eighth consecutive week that the outpatient visit rate has been at or above the nation’s baseline level of 2.4%, but the data for this week “may in part be influenced by changes in healthcare-seeking behavior that can occur during the holidays,” the CDC suggested.
All those outpatient visits mean that the ILI activity map is getting quite red. Thirty states, as well as the District of Columbia and Puerto Rico, were at the highest level on the CDC’s 1-10 activity scale during the week ending Dec. 28, compared with 20 the week before. Four states were categorized in the “high” range with activity levels of 8 and 9.
There have been approximately 6.4 million flu illnesses so far this season, the CDC estimated, along with 55,000 hospitalizations, although the ILI admission rate of 9.2 per 100,000 population is fairly typical for this time of year.
The week of Dec. 28 also brought reports of five more ILI-related pediatric deaths, which all occurred in the two previous weeks. A total of 27 children have died from the flu so far during the 2019-2020 season, the CDC said.
Despite PCV, pediatric asthma patients face pneumococcal risks
Even on-time pneumococcal vaccines don’t completely protect children with asthma from developing invasive pneumococcal disease, a meta-analysis has determined.
Despite receiving pneumococcal valent 7, 10, or 13, children with asthma were still almost twice as likely to develop the disease as were children without asthma, Jose A. Castro-Rodriguez, MD, PhD, and colleagues reported in Pediatrics (2020 Jan. doi: 10.1542/peds.2019-1200). None of the studies included rates for those who received the pneumococcal polysaccharide vaccine (PPSV23).
“For the first time, this meta-analysis reveals 90% increased odds of invasive pneumococcal disease (IPD) among [vaccinated] children with asthma,” said Dr. Castro-Rodriguez, of Pontificia Universidad Católica de Chile, Santiago, and colleagues. “If confirmed, these findings will bear clinical and public health importance,” they noted, because guidelines now recommend PPSV23 after age 2 in children with asthma only if they’re treated with prolonged high-dose oral corticosteroids.
However, because the analysis comprised only four studies, the authors cautioned that the results aren’t enough to justify changes to practice recommendations.
Asthma treatment with inhaled corticosteroids (ICS) may be driving the increased risk, Dr. Castro-Rodriguez and his coauthors suggested. ICS deposition in the oropharynx could boost oropharyngeal candidiasis risk by weakening the mucosal immune response, the researchers noted. And that same process may be at work with Streptococcus pneumoniae.
A prior study found that children with asthma who received ICS for at least 1 month were almost four times more likely to have oropharyngeal colonization by S. pneumoniae as were those who didn’t get the drugs. Thus, a higher carrier rate of S. pneumoniae in the oropharynx, along with asthma’s impaired airway clearance, might increase the risk of pneumococcal diseases, the investigators explained.
Dr. Castro-Rodriguez and colleagues analyzed four studies with more than 4,000 cases and controls, and about 26 million person-years of follow-up.
Rates and risks of IPD in the four studies were as follows:
- Among those with IPD, 27% had asthma, with 18% of those without, an adjusted odds ratio (aOR) of 1.8.
- In a European of patients who received at least 3 doses of PCV7, IPD rates per 100,000 person-years for 5-year-olds were 11.6 for children with asthma and 7.3 for those without. For 5- to 17-year-olds with and without asthma, the rates were 2.3 and 1.6, respectively.
- In 2001, a Korean found an aOR of 2.08 for IPD in children with asthma, compared with those without. In 2010, the aOR was 3.26. No vaccine types were reported in the study.
- of IPD were 3.7 per 100,000 person-years for children with asthma, compared with 2.5 for healthy controls – an adjusted relative risk of 1.5.
The pooled estimate of the four studies revealed an aOR of 1.9 for IPD among children with asthma, compared with those without, Dr. Castro-Rodriguez and his team concluded.
None of the studies reported hospital admissions, mortality, length of hospital stay, intensive care admission, invasive respiratory support, or additional medication use.
One, however, did find asthma severity was significantly associated with increasing IPD treatment costs per 100,000 person-years: $72,581 for healthy controls, compared with $100,020 for children with mild asthma, $172,002 for moderate asthma, and $638,452 for severe asthma.
In addition, treating all-cause pneumonia was more expensive in children with asthma. For all-cause pneumonia, the researchers found that estimated costs per 100,000 person-years for mild, moderate, and severe asthma were $7.5 million, $14.6 million, and $46.8 million, respectively, compared with $1.7 million for healthy controls.
The authors had no relevant financial disclosures.
SOURCE: Castro-Rodriguez J et al. Pediatrics. 2020 Jan. doi: 10.1542/peds.2019-1200.
The meta-analysis contains some important lessons for pediatricians, Tina Q. Tan, MD, wrote in an accompanying editorial.
“First, asthma remains a risk factor for invasive pneumococcal disease and pneumococcal pneumonia, even in the era of widespread use of PCV,” Dr. Tan noted. “Second, it is important that all patients, especially those with asthma, are receiving their vaccinations on time and, most notably, are up to date on their pneumococcal vaccinations. This will provide the best protection against pneumococcal infections and their complications for pediatric patients with asthma.”
Pneumococcal conjugate vaccines (PCV) have impressively decreased rates of invasive pneumococcal disease (IPD) and pneumonia in children in the United States, Dr. Tan explained. Overall, incidence dropped from 95 cases per 100,000 person-years in 1998 to only 9 cases per 100,000 in 2016.
In addition, the incidence of IPD caused by 13-valent PCV serotypes fell, from 88 cases per 100,000 in 1998 to 2 cases per 100,000 in 2016.
The threat is not over, however.
“IPD still remains a leading cause of morbidity and mortality in the United States and worldwide,” Dr. Tan cautioned. “In 2017, the CDC’s Active Bacterial Core surveillance network reported that there were 31,000 cases of IPD (meningitis, bacteremia, and bacteremic pneumonia) and 3,590 deaths, of which 147 cases and 9 deaths occurred in children younger than 5 years of age.”
Dr. Tan is a professor of pediatrics at Northwestern University, Chicago. Her comments appear in Pediatrics 2020 Jan. doi: 10.1542/peds.2019-3360 .
The meta-analysis contains some important lessons for pediatricians, Tina Q. Tan, MD, wrote in an accompanying editorial.
“First, asthma remains a risk factor for invasive pneumococcal disease and pneumococcal pneumonia, even in the era of widespread use of PCV,” Dr. Tan noted. “Second, it is important that all patients, especially those with asthma, are receiving their vaccinations on time and, most notably, are up to date on their pneumococcal vaccinations. This will provide the best protection against pneumococcal infections and their complications for pediatric patients with asthma.”
Pneumococcal conjugate vaccines (PCV) have impressively decreased rates of invasive pneumococcal disease (IPD) and pneumonia in children in the United States, Dr. Tan explained. Overall, incidence dropped from 95 cases per 100,000 person-years in 1998 to only 9 cases per 100,000 in 2016.
In addition, the incidence of IPD caused by 13-valent PCV serotypes fell, from 88 cases per 100,000 in 1998 to 2 cases per 100,000 in 2016.
The threat is not over, however.
“IPD still remains a leading cause of morbidity and mortality in the United States and worldwide,” Dr. Tan cautioned. “In 2017, the CDC’s Active Bacterial Core surveillance network reported that there were 31,000 cases of IPD (meningitis, bacteremia, and bacteremic pneumonia) and 3,590 deaths, of which 147 cases and 9 deaths occurred in children younger than 5 years of age.”
Dr. Tan is a professor of pediatrics at Northwestern University, Chicago. Her comments appear in Pediatrics 2020 Jan. doi: 10.1542/peds.2019-3360 .
The meta-analysis contains some important lessons for pediatricians, Tina Q. Tan, MD, wrote in an accompanying editorial.
“First, asthma remains a risk factor for invasive pneumococcal disease and pneumococcal pneumonia, even in the era of widespread use of PCV,” Dr. Tan noted. “Second, it is important that all patients, especially those with asthma, are receiving their vaccinations on time and, most notably, are up to date on their pneumococcal vaccinations. This will provide the best protection against pneumococcal infections and their complications for pediatric patients with asthma.”
Pneumococcal conjugate vaccines (PCV) have impressively decreased rates of invasive pneumococcal disease (IPD) and pneumonia in children in the United States, Dr. Tan explained. Overall, incidence dropped from 95 cases per 100,000 person-years in 1998 to only 9 cases per 100,000 in 2016.
In addition, the incidence of IPD caused by 13-valent PCV serotypes fell, from 88 cases per 100,000 in 1998 to 2 cases per 100,000 in 2016.
The threat is not over, however.
“IPD still remains a leading cause of morbidity and mortality in the United States and worldwide,” Dr. Tan cautioned. “In 2017, the CDC’s Active Bacterial Core surveillance network reported that there were 31,000 cases of IPD (meningitis, bacteremia, and bacteremic pneumonia) and 3,590 deaths, of which 147 cases and 9 deaths occurred in children younger than 5 years of age.”
Dr. Tan is a professor of pediatrics at Northwestern University, Chicago. Her comments appear in Pediatrics 2020 Jan. doi: 10.1542/peds.2019-3360 .
Even on-time pneumococcal vaccines don’t completely protect children with asthma from developing invasive pneumococcal disease, a meta-analysis has determined.
Despite receiving pneumococcal valent 7, 10, or 13, children with asthma were still almost twice as likely to develop the disease as were children without asthma, Jose A. Castro-Rodriguez, MD, PhD, and colleagues reported in Pediatrics (2020 Jan. doi: 10.1542/peds.2019-1200). None of the studies included rates for those who received the pneumococcal polysaccharide vaccine (PPSV23).
“For the first time, this meta-analysis reveals 90% increased odds of invasive pneumococcal disease (IPD) among [vaccinated] children with asthma,” said Dr. Castro-Rodriguez, of Pontificia Universidad Católica de Chile, Santiago, and colleagues. “If confirmed, these findings will bear clinical and public health importance,” they noted, because guidelines now recommend PPSV23 after age 2 in children with asthma only if they’re treated with prolonged high-dose oral corticosteroids.
However, because the analysis comprised only four studies, the authors cautioned that the results aren’t enough to justify changes to practice recommendations.
Asthma treatment with inhaled corticosteroids (ICS) may be driving the increased risk, Dr. Castro-Rodriguez and his coauthors suggested. ICS deposition in the oropharynx could boost oropharyngeal candidiasis risk by weakening the mucosal immune response, the researchers noted. And that same process may be at work with Streptococcus pneumoniae.
A prior study found that children with asthma who received ICS for at least 1 month were almost four times more likely to have oropharyngeal colonization by S. pneumoniae as were those who didn’t get the drugs. Thus, a higher carrier rate of S. pneumoniae in the oropharynx, along with asthma’s impaired airway clearance, might increase the risk of pneumococcal diseases, the investigators explained.
Dr. Castro-Rodriguez and colleagues analyzed four studies with more than 4,000 cases and controls, and about 26 million person-years of follow-up.
Rates and risks of IPD in the four studies were as follows:
- Among those with IPD, 27% had asthma, with 18% of those without, an adjusted odds ratio (aOR) of 1.8.
- In a European of patients who received at least 3 doses of PCV7, IPD rates per 100,000 person-years for 5-year-olds were 11.6 for children with asthma and 7.3 for those without. For 5- to 17-year-olds with and without asthma, the rates were 2.3 and 1.6, respectively.
- In 2001, a Korean found an aOR of 2.08 for IPD in children with asthma, compared with those without. In 2010, the aOR was 3.26. No vaccine types were reported in the study.
- of IPD were 3.7 per 100,000 person-years for children with asthma, compared with 2.5 for healthy controls – an adjusted relative risk of 1.5.
The pooled estimate of the four studies revealed an aOR of 1.9 for IPD among children with asthma, compared with those without, Dr. Castro-Rodriguez and his team concluded.
None of the studies reported hospital admissions, mortality, length of hospital stay, intensive care admission, invasive respiratory support, or additional medication use.
One, however, did find asthma severity was significantly associated with increasing IPD treatment costs per 100,000 person-years: $72,581 for healthy controls, compared with $100,020 for children with mild asthma, $172,002 for moderate asthma, and $638,452 for severe asthma.
In addition, treating all-cause pneumonia was more expensive in children with asthma. For all-cause pneumonia, the researchers found that estimated costs per 100,000 person-years for mild, moderate, and severe asthma were $7.5 million, $14.6 million, and $46.8 million, respectively, compared with $1.7 million for healthy controls.
The authors had no relevant financial disclosures.
SOURCE: Castro-Rodriguez J et al. Pediatrics. 2020 Jan. doi: 10.1542/peds.2019-1200.
Even on-time pneumococcal vaccines don’t completely protect children with asthma from developing invasive pneumococcal disease, a meta-analysis has determined.
Despite receiving pneumococcal valent 7, 10, or 13, children with asthma were still almost twice as likely to develop the disease as were children without asthma, Jose A. Castro-Rodriguez, MD, PhD, and colleagues reported in Pediatrics (2020 Jan. doi: 10.1542/peds.2019-1200). None of the studies included rates for those who received the pneumococcal polysaccharide vaccine (PPSV23).
“For the first time, this meta-analysis reveals 90% increased odds of invasive pneumococcal disease (IPD) among [vaccinated] children with asthma,” said Dr. Castro-Rodriguez, of Pontificia Universidad Católica de Chile, Santiago, and colleagues. “If confirmed, these findings will bear clinical and public health importance,” they noted, because guidelines now recommend PPSV23 after age 2 in children with asthma only if they’re treated with prolonged high-dose oral corticosteroids.
However, because the analysis comprised only four studies, the authors cautioned that the results aren’t enough to justify changes to practice recommendations.
Asthma treatment with inhaled corticosteroids (ICS) may be driving the increased risk, Dr. Castro-Rodriguez and his coauthors suggested. ICS deposition in the oropharynx could boost oropharyngeal candidiasis risk by weakening the mucosal immune response, the researchers noted. And that same process may be at work with Streptococcus pneumoniae.
A prior study found that children with asthma who received ICS for at least 1 month were almost four times more likely to have oropharyngeal colonization by S. pneumoniae as were those who didn’t get the drugs. Thus, a higher carrier rate of S. pneumoniae in the oropharynx, along with asthma’s impaired airway clearance, might increase the risk of pneumococcal diseases, the investigators explained.
Dr. Castro-Rodriguez and colleagues analyzed four studies with more than 4,000 cases and controls, and about 26 million person-years of follow-up.
Rates and risks of IPD in the four studies were as follows:
- Among those with IPD, 27% had asthma, with 18% of those without, an adjusted odds ratio (aOR) of 1.8.
- In a European of patients who received at least 3 doses of PCV7, IPD rates per 100,000 person-years for 5-year-olds were 11.6 for children with asthma and 7.3 for those without. For 5- to 17-year-olds with and without asthma, the rates were 2.3 and 1.6, respectively.
- In 2001, a Korean found an aOR of 2.08 for IPD in children with asthma, compared with those without. In 2010, the aOR was 3.26. No vaccine types were reported in the study.
- of IPD were 3.7 per 100,000 person-years for children with asthma, compared with 2.5 for healthy controls – an adjusted relative risk of 1.5.
The pooled estimate of the four studies revealed an aOR of 1.9 for IPD among children with asthma, compared with those without, Dr. Castro-Rodriguez and his team concluded.
None of the studies reported hospital admissions, mortality, length of hospital stay, intensive care admission, invasive respiratory support, or additional medication use.
One, however, did find asthma severity was significantly associated with increasing IPD treatment costs per 100,000 person-years: $72,581 for healthy controls, compared with $100,020 for children with mild asthma, $172,002 for moderate asthma, and $638,452 for severe asthma.
In addition, treating all-cause pneumonia was more expensive in children with asthma. For all-cause pneumonia, the researchers found that estimated costs per 100,000 person-years for mild, moderate, and severe asthma were $7.5 million, $14.6 million, and $46.8 million, respectively, compared with $1.7 million for healthy controls.
The authors had no relevant financial disclosures.
SOURCE: Castro-Rodriguez J et al. Pediatrics. 2020 Jan. doi: 10.1542/peds.2019-1200.
FROM PEDIATRICS
Early increase in flu activity shows no signs of slowing
An important measure of U.S. flu activity for the 2019-2020 season has already surpassed last season’s high, and more than half the states are experiencing high levels of activity, according to the Centers for Disease Control and Prevention.
reported Dec. 27.
The last time the outpatient visit rate was higher than that was in February of the 2017-2018 season, when it peaked at 7.5%. The peak month of flu activity occurs most often – about once every 3 years – in February, and the odds of a December peak are about one in five, the CDC has said.
Outpatient illness activity also increased at the state level during the week ending Dec. 21. There were 20 jurisdictions – 18 states, the District of Columbia, and Puerto Rico – at level 10 on the CDC’s 1-10 scale of activity, compared with 13 the previous week, and the number of jurisdictions in the “high” range (levels 8-10) jumped from 21 to 28, the CDC data show.
The influenza division estimated that there have been 4.6 million flu illnesses so far this season, nearly a million more than the total after last week, along with 39,000 hospitalizations. The overall hospitalization rate for the season is up to 6.6 per 100,000 population, which is about average at this point. The proportion of deaths attributed to pneumonia and influenza increased to 5.7%, which is below the epidemic threshold, the CDC said.
Three pediatric deaths related to influenza-like illness were reported during the week ending Dec. 21, two of which occurred in an earlier week. For the 2019-2020 season so far, a total of 22 pediatric deaths have been reported to the CDC.
An important measure of U.S. flu activity for the 2019-2020 season has already surpassed last season’s high, and more than half the states are experiencing high levels of activity, according to the Centers for Disease Control and Prevention.
reported Dec. 27.
The last time the outpatient visit rate was higher than that was in February of the 2017-2018 season, when it peaked at 7.5%. The peak month of flu activity occurs most often – about once every 3 years – in February, and the odds of a December peak are about one in five, the CDC has said.
Outpatient illness activity also increased at the state level during the week ending Dec. 21. There were 20 jurisdictions – 18 states, the District of Columbia, and Puerto Rico – at level 10 on the CDC’s 1-10 scale of activity, compared with 13 the previous week, and the number of jurisdictions in the “high” range (levels 8-10) jumped from 21 to 28, the CDC data show.
The influenza division estimated that there have been 4.6 million flu illnesses so far this season, nearly a million more than the total after last week, along with 39,000 hospitalizations. The overall hospitalization rate for the season is up to 6.6 per 100,000 population, which is about average at this point. The proportion of deaths attributed to pneumonia and influenza increased to 5.7%, which is below the epidemic threshold, the CDC said.
Three pediatric deaths related to influenza-like illness were reported during the week ending Dec. 21, two of which occurred in an earlier week. For the 2019-2020 season so far, a total of 22 pediatric deaths have been reported to the CDC.
An important measure of U.S. flu activity for the 2019-2020 season has already surpassed last season’s high, and more than half the states are experiencing high levels of activity, according to the Centers for Disease Control and Prevention.
reported Dec. 27.
The last time the outpatient visit rate was higher than that was in February of the 2017-2018 season, when it peaked at 7.5%. The peak month of flu activity occurs most often – about once every 3 years – in February, and the odds of a December peak are about one in five, the CDC has said.
Outpatient illness activity also increased at the state level during the week ending Dec. 21. There were 20 jurisdictions – 18 states, the District of Columbia, and Puerto Rico – at level 10 on the CDC’s 1-10 scale of activity, compared with 13 the previous week, and the number of jurisdictions in the “high” range (levels 8-10) jumped from 21 to 28, the CDC data show.
The influenza division estimated that there have been 4.6 million flu illnesses so far this season, nearly a million more than the total after last week, along with 39,000 hospitalizations. The overall hospitalization rate for the season is up to 6.6 per 100,000 population, which is about average at this point. The proportion of deaths attributed to pneumonia and influenza increased to 5.7%, which is below the epidemic threshold, the CDC said.
Three pediatric deaths related to influenza-like illness were reported during the week ending Dec. 21, two of which occurred in an earlier week. For the 2019-2020 season so far, a total of 22 pediatric deaths have been reported to the CDC.
The measles comeback of 2019
Measles made a comeback in 2019.
The Centers for Disease Control and Prevention reported that, as of Dec. 5, 2019, 1,276 individual cases of measles of measles were confirmed in 31 states, the largest number since 1992. This number is a major uptick in cases, compared with previous years since 2000 when the CDC declared measles eliminated from the United States. No deaths have been reported for 2019.
Three-quarters of these cases in 2019 were linked to recent outbreaks in New York and occurred in primarily in underimmunized, close-knit communities and in patients with links to international travel. A total of 124 of the people who got measles this year were hospitalized, and 61 reported having complications, including pneumonia and encephalitis. The overall median patient age was 6 years (31% aged 1-4 years, 27% aged 5-17 years, and 29% aged at least 18 years).
The good news is that most of these cases occurred in unvaccinated patients. The national vaccination rate for the almost 4 million kindergartners reported as enrolled in 2018-2019 was 94.7% for two doses of the MMR vaccine, falling just short of the CDC recommended 95% vaccination rate threshold. The CDC reported an approximate 2.5% rate of vaccination exemptions among school-age children.
The bad news is that, despite the high rate of MMR vaccination rates among U.S. children, there are gaps in measles protection in the U.S. population because of factors leaving patients immunocompromised and antivaccination sentiment that has led some parents to defer or refuse the MMR.
In addition, adults who were vaccinated prior to 1968 with either inactivated measles vaccine or measles vaccine of unknown type may have limited immunity. The inactivated measles vaccine, which was available in 1963-1967, did not achieve effective measles protection.
A global measles surge
While antivaccination sentiment contributed to the 2019 measles cases, a more significant factor may be the global surge of measles. More than 140,000 people worldwide died from measles in 2018, according to the World Health Organization and the CDC.
“[Recent data on measles] indicates that during the first 6 months of the year there have been more measles cases reported worldwide than in any year since 2006. From Jan. 1 to July 31, 2019, 182 countries reported 364,808 measles cases to the WHO. This surpasses the 129,239 reported during the same time period in 2018. WHO regions with the biggest increases in cases include the African region (900%), the Western Pacific region (230%), and the European region (150%),” according to a CDC report.
Studies on hospitalization and complications linked to measles in the United States are scarce, but two outbreaks in Minnesota (2011 and 2017) provided some data on what to expect if the measles surge continues into 2020. The investigators found that poor feeding was a primary reason for admission (97%); additional complications included otitis media (42%), pneumonia (30%), and tracheitis (6%). Three-quarters received antibiotics, 30% required oxygen, and 21% received vitamin A. Median length of stay was 3.7 days (range, 1.1-26.2 days) (Pediatr Infect Dis J. 2019 Jun;38[6]:547-52. doi: 10.1097/INF.0000000000002221).
‘Immunological amnesia’
Infection with the measles virus appears to reduce immunity to other pathogens, according to a paper published in Science (2019 Nov 1;366[6465]599-606).
The hypothesis that the measles virus could cause “immunological amnesia” by impairing immune memory is supported by early research showing children with measles had negative cutaneous tuberculin reactions after having previously tested positive.
“Subsequent studies have shown decreased interferon signaling, skewed cytokine responses, lymphopenia, and suppression of lymphocyte proliferation shortly after infection,” wrote Michael Mina, MD, from Brigham and Women’s Hospital in Boston, and coauthors.
“Given the variation in the degree of immune repertoire modulation we observed, we anticipate that future risk of morbidity and mortality after measles would not be homogeneous but would be skewed toward individuals with the most severe elimination of immunological memory,” they wrote. “These findings underscore the crucial need for continued widespread vaccination.”
In this study, researchers compared the levels of around 400 pathogen-specific antibodies in blood samples from 77 unvaccinated children, taken before and 2 months after natural measles infection, with 5 unvaccinated children who did not contract measles. A total of 34 children experienced mild measles, and 43 had severe measles.
They found that the samples taken after measles infection showed “substantial” reductions in the number of pathogen epitopes, compared with the samples from children who did not get infected with measles.
This amounted to approximately a 20% mean reduction in overall diversity or size of the antibody repertoire. However, in children who experienced severe measles, there was a median loss of 40% (range, 11%-62%) of antibody repertoire, compared with a median of 33% (range, 12%-73%) range in children who experienced mild infection. Meanwhile, the control subjects retained approximately 90% of their antibody repertoire over a similar or longer time period. Some children lost up to 70% of antibodies for specific pathogens.
Maternal-acquired immunity fades
In another study of measles immunity, maternal antibodies were found to be insufficient to provide immunity to infants after 6 months.
The study of 196 infants showed that maternal measles antibodies had dropped below the protective threshold by 3 months of age – well before the recommended age of 12-15 months for the first dose of MMR vaccine.
The odds of inadequate protection doubled for each additional month of age, Michelle Science, MD, of the University of Toronto and associates reported in Pediatrics (2019 Dec 1. doi 10.1542/peds.2019-0630).
“The widening gap between loss of maternal antibodies and measles vaccination described in our study leaves infants vulnerable to measles for much of their infancy and highlights the need for further research to support public health policy,” Dr. Science and colleagues wrote.
The researchers randomly selected 25 samples for each of eight different age groups: up to 30 days old; 1 month (31-60 days), 2 months (61-89 days), 3 months (90-119 days), 4 months, 5 months, 6-9 months, and 9-11 months.
Just over half the babies (56%) were male, and 35% had an underlying condition, but none had conditions that might affect antibody levels. The conditions were primarily a developmental delay or otherwise affecting the central nervous system, liver, or gastrointestinal function. Mean maternal age was 32 years.
To ensure high test sensitivity, the researchers used the plaque-reduction neutralization test to test for measles-neutralizing antibodies instead of using enzyme-linked immunosorbent assay, because “ELISA sensitivity decreases as antibody titers decrease,” Dr. Science and colleagues wrote. They used a neutralization titer of less than 192 mIU/mL as the threshold for protection against measles.
When the researchers calculated the predicted standardized mean antibody titer for infants with a mother aged 32 years, they determined their mean to be 541 mIU/mL at 1 month, 142 mIU/mL at 3 months (below the measles threshold of susceptibility of 192 mIU/mL), and 64 mIU/mL at 6 months. None of the infants had measles antibodies above the protective threshold at 6 months old, the authors noted.
Children’s odds of susceptibility to measles doubled for each additional month of age, after adjustment for infant sex and maternal age (odds ratio, 2.13). Children’s likelihood of susceptibility to measles modestly increased as maternal age increased in 5-year increments from 25 to 40 years.
Children with an underlying conditions had greater susceptibility to measles (83%), compared with those without a comorbidity (68%, P = .03). No difference in susceptibility existed between males and females or based on gestational age at birth (ranging from 37 to 41 weeks).
The Advisory Committee on Immunization Practices permits measles vaccination “as early as 6 months for infants who plan to travel internationally, infants with ongoing risk for exposure during measles outbreaks and as postexposure prophylaxis,” Huong Q. McLean, PhD, of Marshfield (Wisc.) Clinic Research Institute, and Walter A. Orenstein, MD, of Emory University, Atlanta, noted in an editorial.
The research was funded by the Public Health Ontario Project Initiation Fund. The authors had no relevant financial disclosures.
Bianca Nogrady and Tara Haelle contributed to this story.
Measles made a comeback in 2019.
The Centers for Disease Control and Prevention reported that, as of Dec. 5, 2019, 1,276 individual cases of measles of measles were confirmed in 31 states, the largest number since 1992. This number is a major uptick in cases, compared with previous years since 2000 when the CDC declared measles eliminated from the United States. No deaths have been reported for 2019.
Three-quarters of these cases in 2019 were linked to recent outbreaks in New York and occurred in primarily in underimmunized, close-knit communities and in patients with links to international travel. A total of 124 of the people who got measles this year were hospitalized, and 61 reported having complications, including pneumonia and encephalitis. The overall median patient age was 6 years (31% aged 1-4 years, 27% aged 5-17 years, and 29% aged at least 18 years).
The good news is that most of these cases occurred in unvaccinated patients. The national vaccination rate for the almost 4 million kindergartners reported as enrolled in 2018-2019 was 94.7% for two doses of the MMR vaccine, falling just short of the CDC recommended 95% vaccination rate threshold. The CDC reported an approximate 2.5% rate of vaccination exemptions among school-age children.
The bad news is that, despite the high rate of MMR vaccination rates among U.S. children, there are gaps in measles protection in the U.S. population because of factors leaving patients immunocompromised and antivaccination sentiment that has led some parents to defer or refuse the MMR.
In addition, adults who were vaccinated prior to 1968 with either inactivated measles vaccine or measles vaccine of unknown type may have limited immunity. The inactivated measles vaccine, which was available in 1963-1967, did not achieve effective measles protection.
A global measles surge
While antivaccination sentiment contributed to the 2019 measles cases, a more significant factor may be the global surge of measles. More than 140,000 people worldwide died from measles in 2018, according to the World Health Organization and the CDC.
“[Recent data on measles] indicates that during the first 6 months of the year there have been more measles cases reported worldwide than in any year since 2006. From Jan. 1 to July 31, 2019, 182 countries reported 364,808 measles cases to the WHO. This surpasses the 129,239 reported during the same time period in 2018. WHO regions with the biggest increases in cases include the African region (900%), the Western Pacific region (230%), and the European region (150%),” according to a CDC report.
Studies on hospitalization and complications linked to measles in the United States are scarce, but two outbreaks in Minnesota (2011 and 2017) provided some data on what to expect if the measles surge continues into 2020. The investigators found that poor feeding was a primary reason for admission (97%); additional complications included otitis media (42%), pneumonia (30%), and tracheitis (6%). Three-quarters received antibiotics, 30% required oxygen, and 21% received vitamin A. Median length of stay was 3.7 days (range, 1.1-26.2 days) (Pediatr Infect Dis J. 2019 Jun;38[6]:547-52. doi: 10.1097/INF.0000000000002221).
‘Immunological amnesia’
Infection with the measles virus appears to reduce immunity to other pathogens, according to a paper published in Science (2019 Nov 1;366[6465]599-606).
The hypothesis that the measles virus could cause “immunological amnesia” by impairing immune memory is supported by early research showing children with measles had negative cutaneous tuberculin reactions after having previously tested positive.
“Subsequent studies have shown decreased interferon signaling, skewed cytokine responses, lymphopenia, and suppression of lymphocyte proliferation shortly after infection,” wrote Michael Mina, MD, from Brigham and Women’s Hospital in Boston, and coauthors.
“Given the variation in the degree of immune repertoire modulation we observed, we anticipate that future risk of morbidity and mortality after measles would not be homogeneous but would be skewed toward individuals with the most severe elimination of immunological memory,” they wrote. “These findings underscore the crucial need for continued widespread vaccination.”
In this study, researchers compared the levels of around 400 pathogen-specific antibodies in blood samples from 77 unvaccinated children, taken before and 2 months after natural measles infection, with 5 unvaccinated children who did not contract measles. A total of 34 children experienced mild measles, and 43 had severe measles.
They found that the samples taken after measles infection showed “substantial” reductions in the number of pathogen epitopes, compared with the samples from children who did not get infected with measles.
This amounted to approximately a 20% mean reduction in overall diversity or size of the antibody repertoire. However, in children who experienced severe measles, there was a median loss of 40% (range, 11%-62%) of antibody repertoire, compared with a median of 33% (range, 12%-73%) range in children who experienced mild infection. Meanwhile, the control subjects retained approximately 90% of their antibody repertoire over a similar or longer time period. Some children lost up to 70% of antibodies for specific pathogens.
Maternal-acquired immunity fades
In another study of measles immunity, maternal antibodies were found to be insufficient to provide immunity to infants after 6 months.
The study of 196 infants showed that maternal measles antibodies had dropped below the protective threshold by 3 months of age – well before the recommended age of 12-15 months for the first dose of MMR vaccine.
The odds of inadequate protection doubled for each additional month of age, Michelle Science, MD, of the University of Toronto and associates reported in Pediatrics (2019 Dec 1. doi 10.1542/peds.2019-0630).
“The widening gap between loss of maternal antibodies and measles vaccination described in our study leaves infants vulnerable to measles for much of their infancy and highlights the need for further research to support public health policy,” Dr. Science and colleagues wrote.
The researchers randomly selected 25 samples for each of eight different age groups: up to 30 days old; 1 month (31-60 days), 2 months (61-89 days), 3 months (90-119 days), 4 months, 5 months, 6-9 months, and 9-11 months.
Just over half the babies (56%) were male, and 35% had an underlying condition, but none had conditions that might affect antibody levels. The conditions were primarily a developmental delay or otherwise affecting the central nervous system, liver, or gastrointestinal function. Mean maternal age was 32 years.
To ensure high test sensitivity, the researchers used the plaque-reduction neutralization test to test for measles-neutralizing antibodies instead of using enzyme-linked immunosorbent assay, because “ELISA sensitivity decreases as antibody titers decrease,” Dr. Science and colleagues wrote. They used a neutralization titer of less than 192 mIU/mL as the threshold for protection against measles.
When the researchers calculated the predicted standardized mean antibody titer for infants with a mother aged 32 years, they determined their mean to be 541 mIU/mL at 1 month, 142 mIU/mL at 3 months (below the measles threshold of susceptibility of 192 mIU/mL), and 64 mIU/mL at 6 months. None of the infants had measles antibodies above the protective threshold at 6 months old, the authors noted.
Children’s odds of susceptibility to measles doubled for each additional month of age, after adjustment for infant sex and maternal age (odds ratio, 2.13). Children’s likelihood of susceptibility to measles modestly increased as maternal age increased in 5-year increments from 25 to 40 years.
Children with an underlying conditions had greater susceptibility to measles (83%), compared with those without a comorbidity (68%, P = .03). No difference in susceptibility existed between males and females or based on gestational age at birth (ranging from 37 to 41 weeks).
The Advisory Committee on Immunization Practices permits measles vaccination “as early as 6 months for infants who plan to travel internationally, infants with ongoing risk for exposure during measles outbreaks and as postexposure prophylaxis,” Huong Q. McLean, PhD, of Marshfield (Wisc.) Clinic Research Institute, and Walter A. Orenstein, MD, of Emory University, Atlanta, noted in an editorial.
The research was funded by the Public Health Ontario Project Initiation Fund. The authors had no relevant financial disclosures.
Bianca Nogrady and Tara Haelle contributed to this story.
Measles made a comeback in 2019.
The Centers for Disease Control and Prevention reported that, as of Dec. 5, 2019, 1,276 individual cases of measles of measles were confirmed in 31 states, the largest number since 1992. This number is a major uptick in cases, compared with previous years since 2000 when the CDC declared measles eliminated from the United States. No deaths have been reported for 2019.
Three-quarters of these cases in 2019 were linked to recent outbreaks in New York and occurred in primarily in underimmunized, close-knit communities and in patients with links to international travel. A total of 124 of the people who got measles this year were hospitalized, and 61 reported having complications, including pneumonia and encephalitis. The overall median patient age was 6 years (31% aged 1-4 years, 27% aged 5-17 years, and 29% aged at least 18 years).
The good news is that most of these cases occurred in unvaccinated patients. The national vaccination rate for the almost 4 million kindergartners reported as enrolled in 2018-2019 was 94.7% for two doses of the MMR vaccine, falling just short of the CDC recommended 95% vaccination rate threshold. The CDC reported an approximate 2.5% rate of vaccination exemptions among school-age children.
The bad news is that, despite the high rate of MMR vaccination rates among U.S. children, there are gaps in measles protection in the U.S. population because of factors leaving patients immunocompromised and antivaccination sentiment that has led some parents to defer or refuse the MMR.
In addition, adults who were vaccinated prior to 1968 with either inactivated measles vaccine or measles vaccine of unknown type may have limited immunity. The inactivated measles vaccine, which was available in 1963-1967, did not achieve effective measles protection.
A global measles surge
While antivaccination sentiment contributed to the 2019 measles cases, a more significant factor may be the global surge of measles. More than 140,000 people worldwide died from measles in 2018, according to the World Health Organization and the CDC.
“[Recent data on measles] indicates that during the first 6 months of the year there have been more measles cases reported worldwide than in any year since 2006. From Jan. 1 to July 31, 2019, 182 countries reported 364,808 measles cases to the WHO. This surpasses the 129,239 reported during the same time period in 2018. WHO regions with the biggest increases in cases include the African region (900%), the Western Pacific region (230%), and the European region (150%),” according to a CDC report.
Studies on hospitalization and complications linked to measles in the United States are scarce, but two outbreaks in Minnesota (2011 and 2017) provided some data on what to expect if the measles surge continues into 2020. The investigators found that poor feeding was a primary reason for admission (97%); additional complications included otitis media (42%), pneumonia (30%), and tracheitis (6%). Three-quarters received antibiotics, 30% required oxygen, and 21% received vitamin A. Median length of stay was 3.7 days (range, 1.1-26.2 days) (Pediatr Infect Dis J. 2019 Jun;38[6]:547-52. doi: 10.1097/INF.0000000000002221).
‘Immunological amnesia’
Infection with the measles virus appears to reduce immunity to other pathogens, according to a paper published in Science (2019 Nov 1;366[6465]599-606).
The hypothesis that the measles virus could cause “immunological amnesia” by impairing immune memory is supported by early research showing children with measles had negative cutaneous tuberculin reactions after having previously tested positive.
“Subsequent studies have shown decreased interferon signaling, skewed cytokine responses, lymphopenia, and suppression of lymphocyte proliferation shortly after infection,” wrote Michael Mina, MD, from Brigham and Women’s Hospital in Boston, and coauthors.
“Given the variation in the degree of immune repertoire modulation we observed, we anticipate that future risk of morbidity and mortality after measles would not be homogeneous but would be skewed toward individuals with the most severe elimination of immunological memory,” they wrote. “These findings underscore the crucial need for continued widespread vaccination.”
In this study, researchers compared the levels of around 400 pathogen-specific antibodies in blood samples from 77 unvaccinated children, taken before and 2 months after natural measles infection, with 5 unvaccinated children who did not contract measles. A total of 34 children experienced mild measles, and 43 had severe measles.
They found that the samples taken after measles infection showed “substantial” reductions in the number of pathogen epitopes, compared with the samples from children who did not get infected with measles.
This amounted to approximately a 20% mean reduction in overall diversity or size of the antibody repertoire. However, in children who experienced severe measles, there was a median loss of 40% (range, 11%-62%) of antibody repertoire, compared with a median of 33% (range, 12%-73%) range in children who experienced mild infection. Meanwhile, the control subjects retained approximately 90% of their antibody repertoire over a similar or longer time period. Some children lost up to 70% of antibodies for specific pathogens.
Maternal-acquired immunity fades
In another study of measles immunity, maternal antibodies were found to be insufficient to provide immunity to infants after 6 months.
The study of 196 infants showed that maternal measles antibodies had dropped below the protective threshold by 3 months of age – well before the recommended age of 12-15 months for the first dose of MMR vaccine.
The odds of inadequate protection doubled for each additional month of age, Michelle Science, MD, of the University of Toronto and associates reported in Pediatrics (2019 Dec 1. doi 10.1542/peds.2019-0630).
“The widening gap between loss of maternal antibodies and measles vaccination described in our study leaves infants vulnerable to measles for much of their infancy and highlights the need for further research to support public health policy,” Dr. Science and colleagues wrote.
The researchers randomly selected 25 samples for each of eight different age groups: up to 30 days old; 1 month (31-60 days), 2 months (61-89 days), 3 months (90-119 days), 4 months, 5 months, 6-9 months, and 9-11 months.
Just over half the babies (56%) were male, and 35% had an underlying condition, but none had conditions that might affect antibody levels. The conditions were primarily a developmental delay or otherwise affecting the central nervous system, liver, or gastrointestinal function. Mean maternal age was 32 years.
To ensure high test sensitivity, the researchers used the plaque-reduction neutralization test to test for measles-neutralizing antibodies instead of using enzyme-linked immunosorbent assay, because “ELISA sensitivity decreases as antibody titers decrease,” Dr. Science and colleagues wrote. They used a neutralization titer of less than 192 mIU/mL as the threshold for protection against measles.
When the researchers calculated the predicted standardized mean antibody titer for infants with a mother aged 32 years, they determined their mean to be 541 mIU/mL at 1 month, 142 mIU/mL at 3 months (below the measles threshold of susceptibility of 192 mIU/mL), and 64 mIU/mL at 6 months. None of the infants had measles antibodies above the protective threshold at 6 months old, the authors noted.
Children’s odds of susceptibility to measles doubled for each additional month of age, after adjustment for infant sex and maternal age (odds ratio, 2.13). Children’s likelihood of susceptibility to measles modestly increased as maternal age increased in 5-year increments from 25 to 40 years.
Children with an underlying conditions had greater susceptibility to measles (83%), compared with those without a comorbidity (68%, P = .03). No difference in susceptibility existed between males and females or based on gestational age at birth (ranging from 37 to 41 weeks).
The Advisory Committee on Immunization Practices permits measles vaccination “as early as 6 months for infants who plan to travel internationally, infants with ongoing risk for exposure during measles outbreaks and as postexposure prophylaxis,” Huong Q. McLean, PhD, of Marshfield (Wisc.) Clinic Research Institute, and Walter A. Orenstein, MD, of Emory University, Atlanta, noted in an editorial.
The research was funded by the Public Health Ontario Project Initiation Fund. The authors had no relevant financial disclosures.
Bianca Nogrady and Tara Haelle contributed to this story.
North American Blastomycosis in an Immunocompromised Patient
Blastomycosis is a systemic fungal infection that is endemic in the South Central, Midwest, and southeastern regions of the United States, as well as in provinces of Canada bordering the Great Lakes. After inhalation of Blastomyces dermatitidis spores, which are taken up by bronchopulmonary macrophages, there is an approximate 30- to 45-day incubation period. The initial response at the infected site is suppurative, which progresses to granuloma formation. Blastomyces dermatitidis most commonly infects the lungs, followed by the skin, bones, prostate, and central nervous system (CNS). Therapy for blastomycosis is determined by the severity of the clinical presentation and consideration of the toxicities of the antifungal agent.
We present the case of a 38-year-old man with a medical history of human immunodeficiency virus (HIV) infection and AIDS who reported a 3- to 4-week history of respiratory and cutaneous symptoms. Initial clinical impression favored secondary syphilis; however, after laboratory evaluation and lack of response to treatment for syphilis, further investigation revealed a diagnosis of widespread cutaneous North American blastomycosis.
Case Report
A 38-year-old man with a medical history of HIV infection and AIDS presented to the emergency department at a medical center in Minneapolis, Minnesota, with a cough; chest discomfort; and concomitant nonpainful, mildly pruritic papules and plaques of 3 to 4 weeks’ duration that initially appeared on the face and ears and spread to the trunk, arms, palms, legs, and feet. He had a nonpainful ulcer on the glans penis. Symptoms began while he was living in Atlanta, Georgia, before relocating to Minneapolis. A chest radiograph was negative.
The initial clinical impression favored secondary syphilis. Intramuscular penicillin G benzathine (2.4 million U) weekly for 3 weeks was initiated by the primary care team based on clinical suspicion alone without laboratory evidence of a positive rapid plasma reagin or VDRL test. Because laboratory evaluation and lack of response to treatment did not support syphilis, dermatology consultation was requested.
The patient had a history of crack cocaine abuse. He reported sexual activity with a single female partner while living in a halfway house in the Minneapolis–St. Paul area. Physical examination showed an age-appropriate man in no acute distress who was alert and oriented. He had well-demarcated papules and plaques on the forehead, ears, nose, cutaneous and mucosal lips, chest, back, arms, legs, palms, and soles. Many of the facial papules were pink, nonscaly, and concentrated around the nose and mouth; some were umbilicated (Figure 1). Trunk and extensor papules and plaques were well demarcated, oval, and scaly; some had erosions centrally and were excoriated. Palmar papules were round and had peripheral brown hyperpigmentation and central scale (Figure 2). A 1-cm, shallow, nontender, oval ulceration withraised borders was located on the glans penis under the foreskin (Figure 3).
A rapid plasma reagin test was nonreactive; a fluorescent treponemal antibody absorption test was negative. Chest radiograph, magnetic resonance imaging, and electroencephalogram were normal. In addition, spinal fluid drawn from a tap was negative on India ink and Gram stain preparations and was negative for cryptococcal antigen. In addition, spinal fluid was negative for fungal and bacterial growth, as were blood cultures.
Abnormal tests included a positive enzyme-linked immunosorbent assay and Western blot test for HIV, with an absolute CD4 count of 6 cells/mL and a viral load more than 100,000 copies/mL. Urine histoplasmosis antigen was markedly elevated. A potassium hydroxide preparation was performed on the skin of the right forearm, revealing broad-based budding yeast, later confirmed on skin and sputum cultures to be B dermatitidis.
Punch biopsy from the upper back revealed a mixed acute and granulomatous infiltrate with numerous yeast forms (Figure 4A) that were highlighted by Grocott-Gomori methenamine-silver (Figure 4B) and periodic acid–Schiff (Figure 4C) stains.
The patient was treated with intravenous amphotericin with improvement in skin lesions. A healing ointment and occlusive dressing were used on eroded skin lesions. The patient was discharged on oral itraconazole 200 mg twice daily for 6 months (for blastomycosis); oral sulfamethoxazole-trimethoprim 15 mg/kg/d every 8 hours for 21 days (for Pneumocystis carinii pneumonia prophylaxis); oral azithromycin 500 mg daily (for Mycobacterium avium-intracellulare prophylaxis); oral levetiracetam 500 mg every 12 hours (as an antiseizure agent); albuterol 90 µg per actuation; and healing ointment. He continues his chemical dependency program and is being followed by the neurology seizure clinic as well as the outpatient HIV infectious disease clinic for planned reinitiation of highly active antiretroviral therapy.
Comment
Diagnosis
Our patient had an interesting and dramatic presentation of widespread cutaneous North American blastomycosis that was initially considered to be secondary syphilis because of involvement of the palms and soles and the presence of the painless penile ulcer. In addition, the initial skin biopsy finding was considered morphologically consistent with Cryptococcus neoformans based on positive Grocott-Gomori methenamine-silver and periodic acid–Schiff stains and an equivocal mucicarmine stain. However, the potassium hydroxide preparation of skin and positive urine histoplasmosis antigen strongly suggested blastomycosis, which was confirmed by culture of B dermatitidis. The urine histoplasmosis antigen can cross-react with B dermatitidis and other mycoses (eg, Paracoccidioides brasiliensis and Penicillium marneffei); however, because the treatment of either of these mycoses is similar, the value of the test remains high.1
Skin tests and serologic markers are useful epidemiologic tools but are of inadequate sensitivity and specificity to be diagnostic for B dermatitidis. Diagnosis depends on direct examination of tissue or isolation of the fungus in culture.2
Source of Infection
The probable occult source of cutaneous infection was the lungs, given the natural history of disseminated blastomycosis; the history of cough and chest discomfort; the widespread nature of skin lesions; and the ultimate growth of rare yeast forms in sputum. Cutaneous infection generally is from disseminated disease and rarely from direct inoculation.
Unlike many other systemic dimorphic mycoses, blastomycosis usually occurs in healthy hosts and is frequently associated with point-source outbreak. Immunosuppressed patients typically develop infection following exposure to the organism, but reactivation also can occur. Blastomycosis is uncommon among HIV-infected individuals and is not recognized as an AIDS-defining illness.
In a review from Canada of 133 patients with blastomycosis, nearly half had an underlying medical condition but not one typically associated with marked immunosuppression.3 Only 2 of 133 patients had HIV infection. Overall mortality was 6.3%, and the average duration of symptoms before diagnosis was less in those who died vs those who survived the disease.3 In the setting of AIDS or other marked immunosuppression, disease usually is more severe, with multiple-system involvement, including the CNS, and can progress rapidly to death.2
Treatment
Therapy for blastomycosis is determined by the severity of the clinical presentation and consideration of the toxicities of the antifungal agent. There are no randomized, blinded trials comparing antifungal agents, and data on the treatment of blastomycosis in patients infected with HIV are limited. Amphotericin B 3 mg/kg every 24 hours is recommended in life-threatening systemic disease and CNS disease as well as in patients with immune suppression, including AIDS.4 In a retrospective study of 326 patients with blastomycosis, those receiving amphotericin B had a cure rate of 86.5% with a relapse rate of 3.9%; patients receiving ketoconazole had a cure rate of 81.7% with a relapse rate of 14%.4 Although data are limited, chronic suppressive therapy generally is recommended in patients with HIV who have been treated for blastomycosis. Fluconazole, itraconazole, and ketoconazole are all used as chronic suppressive therapy; however, given the higher relapse rate observed with ketoconazole, itraconazole is preferred. Because neither ketoconazole nor itraconazole penetrates the blood-brain barrier, these drugs are not recommended in cases of CNS involvement. Patients with CNS disease or intolerance to itraconazole should be treated with fluconazole for chronic suppression.3
- Wheat J, Wheat H, Connolly P, et al. Cross-reactivity in Histoplasma capsulatum variety capsulatum antigen assays of urine samples from patients with endemic mycoses. Clin Infect Dis. 1997;24:1169-1171.
- Pappas PG, Pottage JC, Powderly WG, et al. Blastomycosis in patients with the acquired immunodeficiency syndrome. Ann Intern Med. 1992;116:847-853.
- Crampton TL, Light RB, Berg GM, et al. Epidemiology and clinical spectrum of blastomycosis diagnosed at Manitoba hospitals. Clin Infect Dis. 2002;34:1310-1316. Cited by: Aberg JA. Blastomycosis and HIV. HIV In Site Knowledge Base Chapter. http://hivinsite.ucsf.edu/InSite?page=kb-05-02-09#SIX. Published April 2003. Updated January 2006. Accessed December 16, 2019.
- Chapman SW, Bradsher RW Jr, Campbell GD Jr, et al. Practice guidelines for the management of patients with blastomycosis. Infectious Diseases Society of America. Clin Infect Dis. 2000;30:679-683.
Blastomycosis is a systemic fungal infection that is endemic in the South Central, Midwest, and southeastern regions of the United States, as well as in provinces of Canada bordering the Great Lakes. After inhalation of Blastomyces dermatitidis spores, which are taken up by bronchopulmonary macrophages, there is an approximate 30- to 45-day incubation period. The initial response at the infected site is suppurative, which progresses to granuloma formation. Blastomyces dermatitidis most commonly infects the lungs, followed by the skin, bones, prostate, and central nervous system (CNS). Therapy for blastomycosis is determined by the severity of the clinical presentation and consideration of the toxicities of the antifungal agent.
We present the case of a 38-year-old man with a medical history of human immunodeficiency virus (HIV) infection and AIDS who reported a 3- to 4-week history of respiratory and cutaneous symptoms. Initial clinical impression favored secondary syphilis; however, after laboratory evaluation and lack of response to treatment for syphilis, further investigation revealed a diagnosis of widespread cutaneous North American blastomycosis.
Case Report
A 38-year-old man with a medical history of HIV infection and AIDS presented to the emergency department at a medical center in Minneapolis, Minnesota, with a cough; chest discomfort; and concomitant nonpainful, mildly pruritic papules and plaques of 3 to 4 weeks’ duration that initially appeared on the face and ears and spread to the trunk, arms, palms, legs, and feet. He had a nonpainful ulcer on the glans penis. Symptoms began while he was living in Atlanta, Georgia, before relocating to Minneapolis. A chest radiograph was negative.
The initial clinical impression favored secondary syphilis. Intramuscular penicillin G benzathine (2.4 million U) weekly for 3 weeks was initiated by the primary care team based on clinical suspicion alone without laboratory evidence of a positive rapid plasma reagin or VDRL test. Because laboratory evaluation and lack of response to treatment did not support syphilis, dermatology consultation was requested.
The patient had a history of crack cocaine abuse. He reported sexual activity with a single female partner while living in a halfway house in the Minneapolis–St. Paul area. Physical examination showed an age-appropriate man in no acute distress who was alert and oriented. He had well-demarcated papules and plaques on the forehead, ears, nose, cutaneous and mucosal lips, chest, back, arms, legs, palms, and soles. Many of the facial papules were pink, nonscaly, and concentrated around the nose and mouth; some were umbilicated (Figure 1). Trunk and extensor papules and plaques were well demarcated, oval, and scaly; some had erosions centrally and were excoriated. Palmar papules were round and had peripheral brown hyperpigmentation and central scale (Figure 2). A 1-cm, shallow, nontender, oval ulceration withraised borders was located on the glans penis under the foreskin (Figure 3).
A rapid plasma reagin test was nonreactive; a fluorescent treponemal antibody absorption test was negative. Chest radiograph, magnetic resonance imaging, and electroencephalogram were normal. In addition, spinal fluid drawn from a tap was negative on India ink and Gram stain preparations and was negative for cryptococcal antigen. In addition, spinal fluid was negative for fungal and bacterial growth, as were blood cultures.
Abnormal tests included a positive enzyme-linked immunosorbent assay and Western blot test for HIV, with an absolute CD4 count of 6 cells/mL and a viral load more than 100,000 copies/mL. Urine histoplasmosis antigen was markedly elevated. A potassium hydroxide preparation was performed on the skin of the right forearm, revealing broad-based budding yeast, later confirmed on skin and sputum cultures to be B dermatitidis.
Punch biopsy from the upper back revealed a mixed acute and granulomatous infiltrate with numerous yeast forms (Figure 4A) that were highlighted by Grocott-Gomori methenamine-silver (Figure 4B) and periodic acid–Schiff (Figure 4C) stains.
The patient was treated with intravenous amphotericin with improvement in skin lesions. A healing ointment and occlusive dressing were used on eroded skin lesions. The patient was discharged on oral itraconazole 200 mg twice daily for 6 months (for blastomycosis); oral sulfamethoxazole-trimethoprim 15 mg/kg/d every 8 hours for 21 days (for Pneumocystis carinii pneumonia prophylaxis); oral azithromycin 500 mg daily (for Mycobacterium avium-intracellulare prophylaxis); oral levetiracetam 500 mg every 12 hours (as an antiseizure agent); albuterol 90 µg per actuation; and healing ointment. He continues his chemical dependency program and is being followed by the neurology seizure clinic as well as the outpatient HIV infectious disease clinic for planned reinitiation of highly active antiretroviral therapy.
Comment
Diagnosis
Our patient had an interesting and dramatic presentation of widespread cutaneous North American blastomycosis that was initially considered to be secondary syphilis because of involvement of the palms and soles and the presence of the painless penile ulcer. In addition, the initial skin biopsy finding was considered morphologically consistent with Cryptococcus neoformans based on positive Grocott-Gomori methenamine-silver and periodic acid–Schiff stains and an equivocal mucicarmine stain. However, the potassium hydroxide preparation of skin and positive urine histoplasmosis antigen strongly suggested blastomycosis, which was confirmed by culture of B dermatitidis. The urine histoplasmosis antigen can cross-react with B dermatitidis and other mycoses (eg, Paracoccidioides brasiliensis and Penicillium marneffei); however, because the treatment of either of these mycoses is similar, the value of the test remains high.1
Skin tests and serologic markers are useful epidemiologic tools but are of inadequate sensitivity and specificity to be diagnostic for B dermatitidis. Diagnosis depends on direct examination of tissue or isolation of the fungus in culture.2
Source of Infection
The probable occult source of cutaneous infection was the lungs, given the natural history of disseminated blastomycosis; the history of cough and chest discomfort; the widespread nature of skin lesions; and the ultimate growth of rare yeast forms in sputum. Cutaneous infection generally is from disseminated disease and rarely from direct inoculation.
Unlike many other systemic dimorphic mycoses, blastomycosis usually occurs in healthy hosts and is frequently associated with point-source outbreak. Immunosuppressed patients typically develop infection following exposure to the organism, but reactivation also can occur. Blastomycosis is uncommon among HIV-infected individuals and is not recognized as an AIDS-defining illness.
In a review from Canada of 133 patients with blastomycosis, nearly half had an underlying medical condition but not one typically associated with marked immunosuppression.3 Only 2 of 133 patients had HIV infection. Overall mortality was 6.3%, and the average duration of symptoms before diagnosis was less in those who died vs those who survived the disease.3 In the setting of AIDS or other marked immunosuppression, disease usually is more severe, with multiple-system involvement, including the CNS, and can progress rapidly to death.2
Treatment
Therapy for blastomycosis is determined by the severity of the clinical presentation and consideration of the toxicities of the antifungal agent. There are no randomized, blinded trials comparing antifungal agents, and data on the treatment of blastomycosis in patients infected with HIV are limited. Amphotericin B 3 mg/kg every 24 hours is recommended in life-threatening systemic disease and CNS disease as well as in patients with immune suppression, including AIDS.4 In a retrospective study of 326 patients with blastomycosis, those receiving amphotericin B had a cure rate of 86.5% with a relapse rate of 3.9%; patients receiving ketoconazole had a cure rate of 81.7% with a relapse rate of 14%.4 Although data are limited, chronic suppressive therapy generally is recommended in patients with HIV who have been treated for blastomycosis. Fluconazole, itraconazole, and ketoconazole are all used as chronic suppressive therapy; however, given the higher relapse rate observed with ketoconazole, itraconazole is preferred. Because neither ketoconazole nor itraconazole penetrates the blood-brain barrier, these drugs are not recommended in cases of CNS involvement. Patients with CNS disease or intolerance to itraconazole should be treated with fluconazole for chronic suppression.3
Blastomycosis is a systemic fungal infection that is endemic in the South Central, Midwest, and southeastern regions of the United States, as well as in provinces of Canada bordering the Great Lakes. After inhalation of Blastomyces dermatitidis spores, which are taken up by bronchopulmonary macrophages, there is an approximate 30- to 45-day incubation period. The initial response at the infected site is suppurative, which progresses to granuloma formation. Blastomyces dermatitidis most commonly infects the lungs, followed by the skin, bones, prostate, and central nervous system (CNS). Therapy for blastomycosis is determined by the severity of the clinical presentation and consideration of the toxicities of the antifungal agent.
We present the case of a 38-year-old man with a medical history of human immunodeficiency virus (HIV) infection and AIDS who reported a 3- to 4-week history of respiratory and cutaneous symptoms. Initial clinical impression favored secondary syphilis; however, after laboratory evaluation and lack of response to treatment for syphilis, further investigation revealed a diagnosis of widespread cutaneous North American blastomycosis.
Case Report
A 38-year-old man with a medical history of HIV infection and AIDS presented to the emergency department at a medical center in Minneapolis, Minnesota, with a cough; chest discomfort; and concomitant nonpainful, mildly pruritic papules and plaques of 3 to 4 weeks’ duration that initially appeared on the face and ears and spread to the trunk, arms, palms, legs, and feet. He had a nonpainful ulcer on the glans penis. Symptoms began while he was living in Atlanta, Georgia, before relocating to Minneapolis. A chest radiograph was negative.
The initial clinical impression favored secondary syphilis. Intramuscular penicillin G benzathine (2.4 million U) weekly for 3 weeks was initiated by the primary care team based on clinical suspicion alone without laboratory evidence of a positive rapid plasma reagin or VDRL test. Because laboratory evaluation and lack of response to treatment did not support syphilis, dermatology consultation was requested.
The patient had a history of crack cocaine abuse. He reported sexual activity with a single female partner while living in a halfway house in the Minneapolis–St. Paul area. Physical examination showed an age-appropriate man in no acute distress who was alert and oriented. He had well-demarcated papules and plaques on the forehead, ears, nose, cutaneous and mucosal lips, chest, back, arms, legs, palms, and soles. Many of the facial papules were pink, nonscaly, and concentrated around the nose and mouth; some were umbilicated (Figure 1). Trunk and extensor papules and plaques were well demarcated, oval, and scaly; some had erosions centrally and were excoriated. Palmar papules were round and had peripheral brown hyperpigmentation and central scale (Figure 2). A 1-cm, shallow, nontender, oval ulceration withraised borders was located on the glans penis under the foreskin (Figure 3).
A rapid plasma reagin test was nonreactive; a fluorescent treponemal antibody absorption test was negative. Chest radiograph, magnetic resonance imaging, and electroencephalogram were normal. In addition, spinal fluid drawn from a tap was negative on India ink and Gram stain preparations and was negative for cryptococcal antigen. In addition, spinal fluid was negative for fungal and bacterial growth, as were blood cultures.
Abnormal tests included a positive enzyme-linked immunosorbent assay and Western blot test for HIV, with an absolute CD4 count of 6 cells/mL and a viral load more than 100,000 copies/mL. Urine histoplasmosis antigen was markedly elevated. A potassium hydroxide preparation was performed on the skin of the right forearm, revealing broad-based budding yeast, later confirmed on skin and sputum cultures to be B dermatitidis.
Punch biopsy from the upper back revealed a mixed acute and granulomatous infiltrate with numerous yeast forms (Figure 4A) that were highlighted by Grocott-Gomori methenamine-silver (Figure 4B) and periodic acid–Schiff (Figure 4C) stains.
The patient was treated with intravenous amphotericin with improvement in skin lesions. A healing ointment and occlusive dressing were used on eroded skin lesions. The patient was discharged on oral itraconazole 200 mg twice daily for 6 months (for blastomycosis); oral sulfamethoxazole-trimethoprim 15 mg/kg/d every 8 hours for 21 days (for Pneumocystis carinii pneumonia prophylaxis); oral azithromycin 500 mg daily (for Mycobacterium avium-intracellulare prophylaxis); oral levetiracetam 500 mg every 12 hours (as an antiseizure agent); albuterol 90 µg per actuation; and healing ointment. He continues his chemical dependency program and is being followed by the neurology seizure clinic as well as the outpatient HIV infectious disease clinic for planned reinitiation of highly active antiretroviral therapy.
Comment
Diagnosis
Our patient had an interesting and dramatic presentation of widespread cutaneous North American blastomycosis that was initially considered to be secondary syphilis because of involvement of the palms and soles and the presence of the painless penile ulcer. In addition, the initial skin biopsy finding was considered morphologically consistent with Cryptococcus neoformans based on positive Grocott-Gomori methenamine-silver and periodic acid–Schiff stains and an equivocal mucicarmine stain. However, the potassium hydroxide preparation of skin and positive urine histoplasmosis antigen strongly suggested blastomycosis, which was confirmed by culture of B dermatitidis. The urine histoplasmosis antigen can cross-react with B dermatitidis and other mycoses (eg, Paracoccidioides brasiliensis and Penicillium marneffei); however, because the treatment of either of these mycoses is similar, the value of the test remains high.1
Skin tests and serologic markers are useful epidemiologic tools but are of inadequate sensitivity and specificity to be diagnostic for B dermatitidis. Diagnosis depends on direct examination of tissue or isolation of the fungus in culture.2
Source of Infection
The probable occult source of cutaneous infection was the lungs, given the natural history of disseminated blastomycosis; the history of cough and chest discomfort; the widespread nature of skin lesions; and the ultimate growth of rare yeast forms in sputum. Cutaneous infection generally is from disseminated disease and rarely from direct inoculation.
Unlike many other systemic dimorphic mycoses, blastomycosis usually occurs in healthy hosts and is frequently associated with point-source outbreak. Immunosuppressed patients typically develop infection following exposure to the organism, but reactivation also can occur. Blastomycosis is uncommon among HIV-infected individuals and is not recognized as an AIDS-defining illness.
In a review from Canada of 133 patients with blastomycosis, nearly half had an underlying medical condition but not one typically associated with marked immunosuppression.3 Only 2 of 133 patients had HIV infection. Overall mortality was 6.3%, and the average duration of symptoms before diagnosis was less in those who died vs those who survived the disease.3 In the setting of AIDS or other marked immunosuppression, disease usually is more severe, with multiple-system involvement, including the CNS, and can progress rapidly to death.2
Treatment
Therapy for blastomycosis is determined by the severity of the clinical presentation and consideration of the toxicities of the antifungal agent. There are no randomized, blinded trials comparing antifungal agents, and data on the treatment of blastomycosis in patients infected with HIV are limited. Amphotericin B 3 mg/kg every 24 hours is recommended in life-threatening systemic disease and CNS disease as well as in patients with immune suppression, including AIDS.4 In a retrospective study of 326 patients with blastomycosis, those receiving amphotericin B had a cure rate of 86.5% with a relapse rate of 3.9%; patients receiving ketoconazole had a cure rate of 81.7% with a relapse rate of 14%.4 Although data are limited, chronic suppressive therapy generally is recommended in patients with HIV who have been treated for blastomycosis. Fluconazole, itraconazole, and ketoconazole are all used as chronic suppressive therapy; however, given the higher relapse rate observed with ketoconazole, itraconazole is preferred. Because neither ketoconazole nor itraconazole penetrates the blood-brain barrier, these drugs are not recommended in cases of CNS involvement. Patients with CNS disease or intolerance to itraconazole should be treated with fluconazole for chronic suppression.3
- Wheat J, Wheat H, Connolly P, et al. Cross-reactivity in Histoplasma capsulatum variety capsulatum antigen assays of urine samples from patients with endemic mycoses. Clin Infect Dis. 1997;24:1169-1171.
- Pappas PG, Pottage JC, Powderly WG, et al. Blastomycosis in patients with the acquired immunodeficiency syndrome. Ann Intern Med. 1992;116:847-853.
- Crampton TL, Light RB, Berg GM, et al. Epidemiology and clinical spectrum of blastomycosis diagnosed at Manitoba hospitals. Clin Infect Dis. 2002;34:1310-1316. Cited by: Aberg JA. Blastomycosis and HIV. HIV In Site Knowledge Base Chapter. http://hivinsite.ucsf.edu/InSite?page=kb-05-02-09#SIX. Published April 2003. Updated January 2006. Accessed December 16, 2019.
- Chapman SW, Bradsher RW Jr, Campbell GD Jr, et al. Practice guidelines for the management of patients with blastomycosis. Infectious Diseases Society of America. Clin Infect Dis. 2000;30:679-683.
- Wheat J, Wheat H, Connolly P, et al. Cross-reactivity in Histoplasma capsulatum variety capsulatum antigen assays of urine samples from patients with endemic mycoses. Clin Infect Dis. 1997;24:1169-1171.
- Pappas PG, Pottage JC, Powderly WG, et al. Blastomycosis in patients with the acquired immunodeficiency syndrome. Ann Intern Med. 1992;116:847-853.
- Crampton TL, Light RB, Berg GM, et al. Epidemiology and clinical spectrum of blastomycosis diagnosed at Manitoba hospitals. Clin Infect Dis. 2002;34:1310-1316. Cited by: Aberg JA. Blastomycosis and HIV. HIV In Site Knowledge Base Chapter. http://hivinsite.ucsf.edu/InSite?page=kb-05-02-09#SIX. Published April 2003. Updated January 2006. Accessed December 16, 2019.
- Chapman SW, Bradsher RW Jr, Campbell GD Jr, et al. Practice guidelines for the management of patients with blastomycosis. Infectious Diseases Society of America. Clin Infect Dis. 2000;30:679-683.
Practice Points
- Blastomycosis generally produces a pulmonary form of the disease and, to a lesser extent, extrapulmonary forms, such as cutaneous, osteoarticular, and genitourinary.
- Blastomycosis can be diagnosed by culture, direct visualization of the yeast in affected tissue, antigen testing, or a combination of these methods.
- After inhalation of Blastomyces dermatitidis spores, which are taken up by bronchopulmonary macrophages, there is an approximate 30- to 45-day incubation period.
