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In COVID-19 patients, risk of bleeding rivals risk of thromboembolism
There is no question that COVID-19 infection increases the risks of serious thromboembolic events, including pulmonary embolism (PE), but it also increases the risk of bleeding, complicating the benefit-to-risk calculations for anticoagulation, according to a review of data at the virtual Going Back to the Heart of Cardiology meeting.
“Bleeding is a significant cause of morbidity in patients with COVID-19, and this is an important concept to appreciate,” reported Rachel P. Rosovsky, MD, director of thrombosis research, Massachusetts General Hospital, Boston.
At least five guidelines, including those issued by the American College of Cardiology, International Society on Thrombosis and Haemostasis (ISTH), and the American College of Chest Physicians, have recently addressed anticoagulation in patients infected with COVID-19, but there are “substantive differences” between them, according to Dr. Rosovsky. The reason is that they are essentially no high quality trials to guide practice. Rather, the recommendations are based primarily on retrospective studies and expert opinion.
The single most common theme from the guidelines is that anticoagulation must be individualized to balance patient-specific risks of venous thromboembolism (VTE) and bleeding, said Dr. Rosovsky, whose group published a recent comparison of these guidelines (Flaczyk A et al. Crit Care 2020;24:559).
Although there is general consensus that all hospitalized patients with COVID-19 should receive anticoagulation unless there are contraindications, there are differences in the recommended intensity of the anticoagulation for different risk groups and there is even less is less consensus on the need to anticoagulate outpatients or patients after discharge, according to Dr. Rosovsky
In her own center, the standard is a prophylactic dose of low molecular weight heparin (LMWH) in an algorithm that calls for dose adjustments for some groups such as those with renal impairment or obesity. Alternative forms of anticoagulation are recommended for patients with a history of thrombocytopenia or are at high risk for hemorrhage. Full dose LMWH is recommended in patients already on an oral anticoagulant at time of hospitalization.
“The biggest question right now is when to consider increasing from a prophylactic dose to intermediate or full dose anticoagulation in high risk patients, especially those in the ICU patients,” Dr. Rosovsky said.
Current practices are diverse, according to a recently published survey led by Dr. Rosovsky (Rosovsky RP et al. Res Pract Thromb Haemost. 2020;4:969-83). According to the survey, which had responses from more than 500 physicians in 41 countries, 30% of centers escalate from a prophylactic dose of anticoagulation to an intermediate dose when patients move to the ICU. Although not all answered this question, 25% reported that they do not escalate at ICU transfer. For 15% of respondents, dose escalation is being offered to patients with a D-dimer exceeding six-times the upper limit of normal.
These practices have developed in the absence of prospective clinical trials, which are urgently needed, according to Dr. Rosovsky. The reason that trials specific to COVID-19 are particularly important is that this infection also engenders a high risk of major bleeding.
For example, in a multicenter retrospective study of 400 hospital-admitted COVID-19 patients the rates of major bleeding was 4.8% or exactly the same as the rate of radiographically confirmed VTE. At 7.6%, the rates of VTE and major bleeding were also exactly the same for ICU patients (Al-Samkari H et al. Blood 2020;136:489-500).
“An elevated D-dimer was a marker for both VTE and major bleeding,” reported Dr. Rosovsky, who was the senior author of this study. On the basis of odds ratio (OR), the risk of VTE was increased more than six-fold (OR, 6.79) and the risk of major bleeding by more than three-fold (OR, 3.56) when the D-dimer exceeded 2,500 ng/mL.
The risk of VTE from COVID-19 infection is well documented. For example, autopsy studies have shown widespread thrombosis, including PE, in patients who have died from COVID-19 infection, according to Dr. Rosovsky.
There is also evidence of benefit from anticoagulation. In an retrospective study from China undertaken early in the pandemic, there was no overall mortality benefit at 28 days among those who did receive LMWH when compared to those who did not, but there was a 20% absolute mortality benefit (52.4% vs. 32.8%; P = .017) in those with a D-dimer six-fold ULN (Tang N et al. J Thromb Haemost 2020;18:1094-9).
These types of data support the use of anticoagulation to manage VTE risk in at least some patients, but the reported rates of VTE across institutions and across inpatient and outpatient settings have varied “dramatically,” according to Dr. Rosovsky. The balance of VTE and major bleeding is delicate. In one retrospective study, the mortality advantage for therapeutic versus prophylactic dose of LMWH did not reach statistical significance, but the rate of major bleeding was nearly doubled (3.0% vs. 1.7%) (Nadkarni GN et al J Am Coll Cardiol 2020;76:1815-26).
Because of the many variables that might affect risk of VTE and risk of major bleeding in any individual patient, the benefit-to-risk calculation of anticoagulation is “complex,” according to Dr. Rosovsky. It is for this reason she urged clinicians to consider entering patients into clinical trials designed to generate evidence-based answers.
There is large and growing body of retrospective data that have helped characterize the risk of VTE and bleeding in patients with COVID-19, but “there is no substitute for a well-controlled clinical trial,” agreed Robert A. Harrington, MD, chairman of the department of medicine, Stanford (Calif.) University.
He and the comoderator of the session in which these data were presented agreed that anticoagulation must be administered within a narrow therapeutic window that will be best defined through controlled trial designs.
“There is a significant risk of doing harm,” said Fatima Rodriguez, MD, assistant professor of cardiology at Stanford University. She seconded the critical role of trial participation when possible and the need for clinical trials to better guide treatment decisions.
The meeting was sponsored by MedscapeLive. MedscapeLive and this news organization are owned by the same parent company.
There is no question that COVID-19 infection increases the risks of serious thromboembolic events, including pulmonary embolism (PE), but it also increases the risk of bleeding, complicating the benefit-to-risk calculations for anticoagulation, according to a review of data at the virtual Going Back to the Heart of Cardiology meeting.
“Bleeding is a significant cause of morbidity in patients with COVID-19, and this is an important concept to appreciate,” reported Rachel P. Rosovsky, MD, director of thrombosis research, Massachusetts General Hospital, Boston.
At least five guidelines, including those issued by the American College of Cardiology, International Society on Thrombosis and Haemostasis (ISTH), and the American College of Chest Physicians, have recently addressed anticoagulation in patients infected with COVID-19, but there are “substantive differences” between them, according to Dr. Rosovsky. The reason is that they are essentially no high quality trials to guide practice. Rather, the recommendations are based primarily on retrospective studies and expert opinion.
The single most common theme from the guidelines is that anticoagulation must be individualized to balance patient-specific risks of venous thromboembolism (VTE) and bleeding, said Dr. Rosovsky, whose group published a recent comparison of these guidelines (Flaczyk A et al. Crit Care 2020;24:559).
Although there is general consensus that all hospitalized patients with COVID-19 should receive anticoagulation unless there are contraindications, there are differences in the recommended intensity of the anticoagulation for different risk groups and there is even less is less consensus on the need to anticoagulate outpatients or patients after discharge, according to Dr. Rosovsky
In her own center, the standard is a prophylactic dose of low molecular weight heparin (LMWH) in an algorithm that calls for dose adjustments for some groups such as those with renal impairment or obesity. Alternative forms of anticoagulation are recommended for patients with a history of thrombocytopenia or are at high risk for hemorrhage. Full dose LMWH is recommended in patients already on an oral anticoagulant at time of hospitalization.
“The biggest question right now is when to consider increasing from a prophylactic dose to intermediate or full dose anticoagulation in high risk patients, especially those in the ICU patients,” Dr. Rosovsky said.
Current practices are diverse, according to a recently published survey led by Dr. Rosovsky (Rosovsky RP et al. Res Pract Thromb Haemost. 2020;4:969-83). According to the survey, which had responses from more than 500 physicians in 41 countries, 30% of centers escalate from a prophylactic dose of anticoagulation to an intermediate dose when patients move to the ICU. Although not all answered this question, 25% reported that they do not escalate at ICU transfer. For 15% of respondents, dose escalation is being offered to patients with a D-dimer exceeding six-times the upper limit of normal.
These practices have developed in the absence of prospective clinical trials, which are urgently needed, according to Dr. Rosovsky. The reason that trials specific to COVID-19 are particularly important is that this infection also engenders a high risk of major bleeding.
For example, in a multicenter retrospective study of 400 hospital-admitted COVID-19 patients the rates of major bleeding was 4.8% or exactly the same as the rate of radiographically confirmed VTE. At 7.6%, the rates of VTE and major bleeding were also exactly the same for ICU patients (Al-Samkari H et al. Blood 2020;136:489-500).
“An elevated D-dimer was a marker for both VTE and major bleeding,” reported Dr. Rosovsky, who was the senior author of this study. On the basis of odds ratio (OR), the risk of VTE was increased more than six-fold (OR, 6.79) and the risk of major bleeding by more than three-fold (OR, 3.56) when the D-dimer exceeded 2,500 ng/mL.
The risk of VTE from COVID-19 infection is well documented. For example, autopsy studies have shown widespread thrombosis, including PE, in patients who have died from COVID-19 infection, according to Dr. Rosovsky.
There is also evidence of benefit from anticoagulation. In an retrospective study from China undertaken early in the pandemic, there was no overall mortality benefit at 28 days among those who did receive LMWH when compared to those who did not, but there was a 20% absolute mortality benefit (52.4% vs. 32.8%; P = .017) in those with a D-dimer six-fold ULN (Tang N et al. J Thromb Haemost 2020;18:1094-9).
These types of data support the use of anticoagulation to manage VTE risk in at least some patients, but the reported rates of VTE across institutions and across inpatient and outpatient settings have varied “dramatically,” according to Dr. Rosovsky. The balance of VTE and major bleeding is delicate. In one retrospective study, the mortality advantage for therapeutic versus prophylactic dose of LMWH did not reach statistical significance, but the rate of major bleeding was nearly doubled (3.0% vs. 1.7%) (Nadkarni GN et al J Am Coll Cardiol 2020;76:1815-26).
Because of the many variables that might affect risk of VTE and risk of major bleeding in any individual patient, the benefit-to-risk calculation of anticoagulation is “complex,” according to Dr. Rosovsky. It is for this reason she urged clinicians to consider entering patients into clinical trials designed to generate evidence-based answers.
There is large and growing body of retrospective data that have helped characterize the risk of VTE and bleeding in patients with COVID-19, but “there is no substitute for a well-controlled clinical trial,” agreed Robert A. Harrington, MD, chairman of the department of medicine, Stanford (Calif.) University.
He and the comoderator of the session in which these data were presented agreed that anticoagulation must be administered within a narrow therapeutic window that will be best defined through controlled trial designs.
“There is a significant risk of doing harm,” said Fatima Rodriguez, MD, assistant professor of cardiology at Stanford University. She seconded the critical role of trial participation when possible and the need for clinical trials to better guide treatment decisions.
The meeting was sponsored by MedscapeLive. MedscapeLive and this news organization are owned by the same parent company.
There is no question that COVID-19 infection increases the risks of serious thromboembolic events, including pulmonary embolism (PE), but it also increases the risk of bleeding, complicating the benefit-to-risk calculations for anticoagulation, according to a review of data at the virtual Going Back to the Heart of Cardiology meeting.
“Bleeding is a significant cause of morbidity in patients with COVID-19, and this is an important concept to appreciate,” reported Rachel P. Rosovsky, MD, director of thrombosis research, Massachusetts General Hospital, Boston.
At least five guidelines, including those issued by the American College of Cardiology, International Society on Thrombosis and Haemostasis (ISTH), and the American College of Chest Physicians, have recently addressed anticoagulation in patients infected with COVID-19, but there are “substantive differences” between them, according to Dr. Rosovsky. The reason is that they are essentially no high quality trials to guide practice. Rather, the recommendations are based primarily on retrospective studies and expert opinion.
The single most common theme from the guidelines is that anticoagulation must be individualized to balance patient-specific risks of venous thromboembolism (VTE) and bleeding, said Dr. Rosovsky, whose group published a recent comparison of these guidelines (Flaczyk A et al. Crit Care 2020;24:559).
Although there is general consensus that all hospitalized patients with COVID-19 should receive anticoagulation unless there are contraindications, there are differences in the recommended intensity of the anticoagulation for different risk groups and there is even less is less consensus on the need to anticoagulate outpatients or patients after discharge, according to Dr. Rosovsky
In her own center, the standard is a prophylactic dose of low molecular weight heparin (LMWH) in an algorithm that calls for dose adjustments for some groups such as those with renal impairment or obesity. Alternative forms of anticoagulation are recommended for patients with a history of thrombocytopenia or are at high risk for hemorrhage. Full dose LMWH is recommended in patients already on an oral anticoagulant at time of hospitalization.
“The biggest question right now is when to consider increasing from a prophylactic dose to intermediate or full dose anticoagulation in high risk patients, especially those in the ICU patients,” Dr. Rosovsky said.
Current practices are diverse, according to a recently published survey led by Dr. Rosovsky (Rosovsky RP et al. Res Pract Thromb Haemost. 2020;4:969-83). According to the survey, which had responses from more than 500 physicians in 41 countries, 30% of centers escalate from a prophylactic dose of anticoagulation to an intermediate dose when patients move to the ICU. Although not all answered this question, 25% reported that they do not escalate at ICU transfer. For 15% of respondents, dose escalation is being offered to patients with a D-dimer exceeding six-times the upper limit of normal.
These practices have developed in the absence of prospective clinical trials, which are urgently needed, according to Dr. Rosovsky. The reason that trials specific to COVID-19 are particularly important is that this infection also engenders a high risk of major bleeding.
For example, in a multicenter retrospective study of 400 hospital-admitted COVID-19 patients the rates of major bleeding was 4.8% or exactly the same as the rate of radiographically confirmed VTE. At 7.6%, the rates of VTE and major bleeding were also exactly the same for ICU patients (Al-Samkari H et al. Blood 2020;136:489-500).
“An elevated D-dimer was a marker for both VTE and major bleeding,” reported Dr. Rosovsky, who was the senior author of this study. On the basis of odds ratio (OR), the risk of VTE was increased more than six-fold (OR, 6.79) and the risk of major bleeding by more than three-fold (OR, 3.56) when the D-dimer exceeded 2,500 ng/mL.
The risk of VTE from COVID-19 infection is well documented. For example, autopsy studies have shown widespread thrombosis, including PE, in patients who have died from COVID-19 infection, according to Dr. Rosovsky.
There is also evidence of benefit from anticoagulation. In an retrospective study from China undertaken early in the pandemic, there was no overall mortality benefit at 28 days among those who did receive LMWH when compared to those who did not, but there was a 20% absolute mortality benefit (52.4% vs. 32.8%; P = .017) in those with a D-dimer six-fold ULN (Tang N et al. J Thromb Haemost 2020;18:1094-9).
These types of data support the use of anticoagulation to manage VTE risk in at least some patients, but the reported rates of VTE across institutions and across inpatient and outpatient settings have varied “dramatically,” according to Dr. Rosovsky. The balance of VTE and major bleeding is delicate. In one retrospective study, the mortality advantage for therapeutic versus prophylactic dose of LMWH did not reach statistical significance, but the rate of major bleeding was nearly doubled (3.0% vs. 1.7%) (Nadkarni GN et al J Am Coll Cardiol 2020;76:1815-26).
Because of the many variables that might affect risk of VTE and risk of major bleeding in any individual patient, the benefit-to-risk calculation of anticoagulation is “complex,” according to Dr. Rosovsky. It is for this reason she urged clinicians to consider entering patients into clinical trials designed to generate evidence-based answers.
There is large and growing body of retrospective data that have helped characterize the risk of VTE and bleeding in patients with COVID-19, but “there is no substitute for a well-controlled clinical trial,” agreed Robert A. Harrington, MD, chairman of the department of medicine, Stanford (Calif.) University.
He and the comoderator of the session in which these data were presented agreed that anticoagulation must be administered within a narrow therapeutic window that will be best defined through controlled trial designs.
“There is a significant risk of doing harm,” said Fatima Rodriguez, MD, assistant professor of cardiology at Stanford University. She seconded the critical role of trial participation when possible and the need for clinical trials to better guide treatment decisions.
The meeting was sponsored by MedscapeLive. MedscapeLive and this news organization are owned by the same parent company.
EXPERT ANALYSIS FROM THE GOING BACK TO THE HEART OF CARDIOLOGY MEETING
Cloth masks provide inferior protection vs. medical masks, suggests evidence review
review published Jan. 11 in Annals of Family Medicine.
according to an evidenceNevertheless, cloth masks may provide some degree of protection, filtration studies indicate. If clinicians use cloth masks, they should take into account the fit, material, and number of layers, the review authors wrote.
And if cloth masks are used as a last resort, such as during shortages of personal protective equipment (PPE), additional measures may help, such as pairing cloth masks with plastic face shields.
“We recommend frequent cloth mask changes to reduce the risk of moisture retention and washing according to hospital laundry standards to decrease the risk of ineffective cleaning,” review author Ariel Kiyomi Daoud, a researcher at the University of Colorado at Denver, Aurora, and colleagues wrote.
The investigators identified and analyzed nine studies related to cloth masks’ ability to prevent respiratory viral infections among health care clinicians. The studies generally were not specific to SARS-CoV-2. They focused on four nonrandomized trials, three laboratory efficacy studies, one single-case experiment, and one randomized controlled trial.
Filtration and fit
“Seven publications addressed the filtration efficacy of commercial cloth masks or materials used to create homemade masks ... in a laboratory setting,” the researchers wrote. These studies found that cloth materials prevent some level of penetration, but generally have “lesser filtration efficiency and greater variability than medical masks” do.
One study found that the materials with the greatest filtration efficacy – vacuum bags and tea towels – had low airflow, which limits their use.
Two studies found that additional layers may increase the viral filtration efficacy of cloth masks.
Several studies that assessed mask fit and airflow found that cloth masks “have worse fit and a greater level of particle leakage, compared to medical masks,” the authors reported. Most studies did not examine cloth masks’ ability to protect wearers from respiratory droplets or contact, which the World Health Organization consider the primary means of SARS-CoV-2 spread, with aerosols playing a smaller role. “Thus, we must interpret these results with caution in the context of COVID-19,” the authors wrote. “For a primary care clinician without access to medical masks, our qualitative synthesis of the literature suggests that it is better to wear a cloth mask than no mask,” as long as other protective measures are considered along with cloth mask use.
Generally consistent guidance
Agencies and researchers have shared similar recommendations about the use of cloth masks in health care settings.
“Health care workers are at the frontline and they need to be protected,” said Abrar Ahmad Chughtai, MBBS, MPH, PhD, an epidemiologist at University of New South Wales, Sydney, in an interview. “Many studies show that respirators are more effective, compared to medical masks, and medical masks are more effective, compared to cloth masks. So ideally, all frontline health care workers should use respirators. If respirators are not available, then medical masks should be used. Cloth masks are not as effective as medical masks and ideally should not be used in health care settings.”
Dr. Chughtai has written about cloth masks for protection against SARS-CoV-2 and was an investigator for a 2015 randomized trial that compared medical masks and cloth masks in health care workers.
In that trial, which was considered in the review, greater rates of influenza-like illness occurred in the cloth mask arm, compared with the medical mask arm.
“Studies show that three or more layers of cloth may reduce the spread of droplets and aerosols from the wearers,” Dr. Chughtai said. “So, cloth masks may be used in community settings to prevent spread of infections from the sick, particularly asymptomatic, people.”
In addition, cloth masks “may be used by health care workers as a last resort, if no other option is available,” he said. In that case, they should have at least three layers, fit to the face, and be washed regularly.
Not considered PPE
According to routine infection prevention and control recommendations for health care personnel from the Centers for Disease Control and Prevention, face masks – often referred to as surgical masks or procedure masks – should be worn by workers “at all times while they are in the healthcare facility, including in break rooms or other spaces where they might encounter coworkers.”
Unlike cloth masks, face masks offer “protection for the wearer against exposure to splashes and sprays of infectious material from others,” as well as source control, the agency says. Health care personnel “should remove their respirator or face mask, perform hand hygiene, and put on their cloth mask when leaving the facility at the end of their shift,” according to the CDC.
“Cloth masks are NOT PPE and should not be worn for the care of patients with suspected or confirmed COVID-19 or other situations where use of a respirator or face mask is recommended,” the agency notes.
When respirators or face masks are unavailable, health care personnel “might use cloth masks as a last resort for care of patients with suspected or confirmed diagnosis for which face mask or respirator use is normally recommended,” according to CDC guidance.
In that scenario, cloth masks “should ideally be used in combination with a face shield that covers the entire front (that extends to the chin or below) and sides of the face,” the CDC says.
Limited data for comparisons
A Dec. 29, 2020, update in Annals of Internal Medicine about masks for prevention of respiratory virus infections highlighted two recent studies in the United States that reported on mask use in health care settings. A study of more than 16,000 health care workers and first responders found that those who used an N95 or surgical mask all of the time were less likely to have SARS-CoV-2 antibodies, compared with workers who did not wear masks all the time. The adjusted odds ratio with consistent N95 use was 0.83, and the aOR with consistent surgical mask use was 0.86.
In the second study, which included more than 20,000 asymptomatic health care workers, risk for infection was reduced with any mask use versus no mask use (OR, 0.58). An N95 mask was associated with decreased risk versus a surgical mask (OR, 0.76). The studies had methodological limitations, however, and “evidence for various comparisons about mask use in health care settings and risk for SARS-CoV-2 remains insufficient,” the authors of the update wrote.
The Annals of Family Medicine review authors had no relevant disclosures. Dr. Chughtai has tested filtration of 3M masks and worked with CleanSpace Technology to research fit testing of respirators, and the 2015 randomized trial was funded by an Australian Research Council Linkage Grant with 3M as a partner on the grant. The Dec. 29, 2020, update was of a review that originally was supported by grants from the Agency for Healthcare Research Quality.
SOURCE: Daoud AK et al. Ann Fam Med. 2020 Jan 11. doi: 10.1370/afm.2640.
review published Jan. 11 in Annals of Family Medicine.
according to an evidenceNevertheless, cloth masks may provide some degree of protection, filtration studies indicate. If clinicians use cloth masks, they should take into account the fit, material, and number of layers, the review authors wrote.
And if cloth masks are used as a last resort, such as during shortages of personal protective equipment (PPE), additional measures may help, such as pairing cloth masks with plastic face shields.
“We recommend frequent cloth mask changes to reduce the risk of moisture retention and washing according to hospital laundry standards to decrease the risk of ineffective cleaning,” review author Ariel Kiyomi Daoud, a researcher at the University of Colorado at Denver, Aurora, and colleagues wrote.
The investigators identified and analyzed nine studies related to cloth masks’ ability to prevent respiratory viral infections among health care clinicians. The studies generally were not specific to SARS-CoV-2. They focused on four nonrandomized trials, three laboratory efficacy studies, one single-case experiment, and one randomized controlled trial.
Filtration and fit
“Seven publications addressed the filtration efficacy of commercial cloth masks or materials used to create homemade masks ... in a laboratory setting,” the researchers wrote. These studies found that cloth materials prevent some level of penetration, but generally have “lesser filtration efficiency and greater variability than medical masks” do.
One study found that the materials with the greatest filtration efficacy – vacuum bags and tea towels – had low airflow, which limits their use.
Two studies found that additional layers may increase the viral filtration efficacy of cloth masks.
Several studies that assessed mask fit and airflow found that cloth masks “have worse fit and a greater level of particle leakage, compared to medical masks,” the authors reported. Most studies did not examine cloth masks’ ability to protect wearers from respiratory droplets or contact, which the World Health Organization consider the primary means of SARS-CoV-2 spread, with aerosols playing a smaller role. “Thus, we must interpret these results with caution in the context of COVID-19,” the authors wrote. “For a primary care clinician without access to medical masks, our qualitative synthesis of the literature suggests that it is better to wear a cloth mask than no mask,” as long as other protective measures are considered along with cloth mask use.
Generally consistent guidance
Agencies and researchers have shared similar recommendations about the use of cloth masks in health care settings.
“Health care workers are at the frontline and they need to be protected,” said Abrar Ahmad Chughtai, MBBS, MPH, PhD, an epidemiologist at University of New South Wales, Sydney, in an interview. “Many studies show that respirators are more effective, compared to medical masks, and medical masks are more effective, compared to cloth masks. So ideally, all frontline health care workers should use respirators. If respirators are not available, then medical masks should be used. Cloth masks are not as effective as medical masks and ideally should not be used in health care settings.”
Dr. Chughtai has written about cloth masks for protection against SARS-CoV-2 and was an investigator for a 2015 randomized trial that compared medical masks and cloth masks in health care workers.
In that trial, which was considered in the review, greater rates of influenza-like illness occurred in the cloth mask arm, compared with the medical mask arm.
“Studies show that three or more layers of cloth may reduce the spread of droplets and aerosols from the wearers,” Dr. Chughtai said. “So, cloth masks may be used in community settings to prevent spread of infections from the sick, particularly asymptomatic, people.”
In addition, cloth masks “may be used by health care workers as a last resort, if no other option is available,” he said. In that case, they should have at least three layers, fit to the face, and be washed regularly.
Not considered PPE
According to routine infection prevention and control recommendations for health care personnel from the Centers for Disease Control and Prevention, face masks – often referred to as surgical masks or procedure masks – should be worn by workers “at all times while they are in the healthcare facility, including in break rooms or other spaces where they might encounter coworkers.”
Unlike cloth masks, face masks offer “protection for the wearer against exposure to splashes and sprays of infectious material from others,” as well as source control, the agency says. Health care personnel “should remove their respirator or face mask, perform hand hygiene, and put on their cloth mask when leaving the facility at the end of their shift,” according to the CDC.
“Cloth masks are NOT PPE and should not be worn for the care of patients with suspected or confirmed COVID-19 or other situations where use of a respirator or face mask is recommended,” the agency notes.
When respirators or face masks are unavailable, health care personnel “might use cloth masks as a last resort for care of patients with suspected or confirmed diagnosis for which face mask or respirator use is normally recommended,” according to CDC guidance.
In that scenario, cloth masks “should ideally be used in combination with a face shield that covers the entire front (that extends to the chin or below) and sides of the face,” the CDC says.
Limited data for comparisons
A Dec. 29, 2020, update in Annals of Internal Medicine about masks for prevention of respiratory virus infections highlighted two recent studies in the United States that reported on mask use in health care settings. A study of more than 16,000 health care workers and first responders found that those who used an N95 or surgical mask all of the time were less likely to have SARS-CoV-2 antibodies, compared with workers who did not wear masks all the time. The adjusted odds ratio with consistent N95 use was 0.83, and the aOR with consistent surgical mask use was 0.86.
In the second study, which included more than 20,000 asymptomatic health care workers, risk for infection was reduced with any mask use versus no mask use (OR, 0.58). An N95 mask was associated with decreased risk versus a surgical mask (OR, 0.76). The studies had methodological limitations, however, and “evidence for various comparisons about mask use in health care settings and risk for SARS-CoV-2 remains insufficient,” the authors of the update wrote.
The Annals of Family Medicine review authors had no relevant disclosures. Dr. Chughtai has tested filtration of 3M masks and worked with CleanSpace Technology to research fit testing of respirators, and the 2015 randomized trial was funded by an Australian Research Council Linkage Grant with 3M as a partner on the grant. The Dec. 29, 2020, update was of a review that originally was supported by grants from the Agency for Healthcare Research Quality.
SOURCE: Daoud AK et al. Ann Fam Med. 2020 Jan 11. doi: 10.1370/afm.2640.
review published Jan. 11 in Annals of Family Medicine.
according to an evidenceNevertheless, cloth masks may provide some degree of protection, filtration studies indicate. If clinicians use cloth masks, they should take into account the fit, material, and number of layers, the review authors wrote.
And if cloth masks are used as a last resort, such as during shortages of personal protective equipment (PPE), additional measures may help, such as pairing cloth masks with plastic face shields.
“We recommend frequent cloth mask changes to reduce the risk of moisture retention and washing according to hospital laundry standards to decrease the risk of ineffective cleaning,” review author Ariel Kiyomi Daoud, a researcher at the University of Colorado at Denver, Aurora, and colleagues wrote.
The investigators identified and analyzed nine studies related to cloth masks’ ability to prevent respiratory viral infections among health care clinicians. The studies generally were not specific to SARS-CoV-2. They focused on four nonrandomized trials, three laboratory efficacy studies, one single-case experiment, and one randomized controlled trial.
Filtration and fit
“Seven publications addressed the filtration efficacy of commercial cloth masks or materials used to create homemade masks ... in a laboratory setting,” the researchers wrote. These studies found that cloth materials prevent some level of penetration, but generally have “lesser filtration efficiency and greater variability than medical masks” do.
One study found that the materials with the greatest filtration efficacy – vacuum bags and tea towels – had low airflow, which limits their use.
Two studies found that additional layers may increase the viral filtration efficacy of cloth masks.
Several studies that assessed mask fit and airflow found that cloth masks “have worse fit and a greater level of particle leakage, compared to medical masks,” the authors reported. Most studies did not examine cloth masks’ ability to protect wearers from respiratory droplets or contact, which the World Health Organization consider the primary means of SARS-CoV-2 spread, with aerosols playing a smaller role. “Thus, we must interpret these results with caution in the context of COVID-19,” the authors wrote. “For a primary care clinician without access to medical masks, our qualitative synthesis of the literature suggests that it is better to wear a cloth mask than no mask,” as long as other protective measures are considered along with cloth mask use.
Generally consistent guidance
Agencies and researchers have shared similar recommendations about the use of cloth masks in health care settings.
“Health care workers are at the frontline and they need to be protected,” said Abrar Ahmad Chughtai, MBBS, MPH, PhD, an epidemiologist at University of New South Wales, Sydney, in an interview. “Many studies show that respirators are more effective, compared to medical masks, and medical masks are more effective, compared to cloth masks. So ideally, all frontline health care workers should use respirators. If respirators are not available, then medical masks should be used. Cloth masks are not as effective as medical masks and ideally should not be used in health care settings.”
Dr. Chughtai has written about cloth masks for protection against SARS-CoV-2 and was an investigator for a 2015 randomized trial that compared medical masks and cloth masks in health care workers.
In that trial, which was considered in the review, greater rates of influenza-like illness occurred in the cloth mask arm, compared with the medical mask arm.
“Studies show that three or more layers of cloth may reduce the spread of droplets and aerosols from the wearers,” Dr. Chughtai said. “So, cloth masks may be used in community settings to prevent spread of infections from the sick, particularly asymptomatic, people.”
In addition, cloth masks “may be used by health care workers as a last resort, if no other option is available,” he said. In that case, they should have at least three layers, fit to the face, and be washed regularly.
Not considered PPE
According to routine infection prevention and control recommendations for health care personnel from the Centers for Disease Control and Prevention, face masks – often referred to as surgical masks or procedure masks – should be worn by workers “at all times while they are in the healthcare facility, including in break rooms or other spaces where they might encounter coworkers.”
Unlike cloth masks, face masks offer “protection for the wearer against exposure to splashes and sprays of infectious material from others,” as well as source control, the agency says. Health care personnel “should remove their respirator or face mask, perform hand hygiene, and put on their cloth mask when leaving the facility at the end of their shift,” according to the CDC.
“Cloth masks are NOT PPE and should not be worn for the care of patients with suspected or confirmed COVID-19 or other situations where use of a respirator or face mask is recommended,” the agency notes.
When respirators or face masks are unavailable, health care personnel “might use cloth masks as a last resort for care of patients with suspected or confirmed diagnosis for which face mask or respirator use is normally recommended,” according to CDC guidance.
In that scenario, cloth masks “should ideally be used in combination with a face shield that covers the entire front (that extends to the chin or below) and sides of the face,” the CDC says.
Limited data for comparisons
A Dec. 29, 2020, update in Annals of Internal Medicine about masks for prevention of respiratory virus infections highlighted two recent studies in the United States that reported on mask use in health care settings. A study of more than 16,000 health care workers and first responders found that those who used an N95 or surgical mask all of the time were less likely to have SARS-CoV-2 antibodies, compared with workers who did not wear masks all the time. The adjusted odds ratio with consistent N95 use was 0.83, and the aOR with consistent surgical mask use was 0.86.
In the second study, which included more than 20,000 asymptomatic health care workers, risk for infection was reduced with any mask use versus no mask use (OR, 0.58). An N95 mask was associated with decreased risk versus a surgical mask (OR, 0.76). The studies had methodological limitations, however, and “evidence for various comparisons about mask use in health care settings and risk for SARS-CoV-2 remains insufficient,” the authors of the update wrote.
The Annals of Family Medicine review authors had no relevant disclosures. Dr. Chughtai has tested filtration of 3M masks and worked with CleanSpace Technology to research fit testing of respirators, and the 2015 randomized trial was funded by an Australian Research Council Linkage Grant with 3M as a partner on the grant. The Dec. 29, 2020, update was of a review that originally was supported by grants from the Agency for Healthcare Research Quality.
SOURCE: Daoud AK et al. Ann Fam Med. 2020 Jan 11. doi: 10.1370/afm.2640.
FROM ANNALS OF FAMILY MEDICINE
Feds authorize $3 billion to boost vaccine rollout
The CDC will send $3 billion to the states to boost a lagging national COVID-19 vaccination program.
The Department of Health and Human Services announced the new funding as only 30% of the more than 22 million doses of vaccine distributed in the U.S. has been injected into Americans’ arms.
Along with the $3 billion, HHS said another $19 billion is headed to states and jurisdictions to boost COVID-19 testing programs. The amount each state will receive will be determined by population.
The news comes days after President-elect Joe Biden said he planned to release all available doses of vaccine after he takes office on Jan. 20. The Trump administration has been holding back millions of doses to ensure supply of vaccine to provide the necessary second dose for those who received the first shot.
“This funding is another timely investment that will strengthen our nation’s efforts to stop the COVID-19 pandemic in America,” CDC Director Robert Redfield, MD, said in a statement. “Particularly now, it is crucial that states and communities have the resources they need to conduct testing, and to distribute and administer safe, high-quality COVID-19 vaccines safely and equitably.”
Federal officials and public health experts, however, expressed concerns this weekend about Biden’s plan.
Outgoing Trump administration officials and others said they worry that doing so will leave providers without enough second doses for people getting the two-shot vaccines.
If Biden releases all available doses and the vaccine-making process has an issue, they said, that could pose a supply risk.
“We have product that is going through QC right now – quality control – for sterility, identity check that we have tens and tens of millions of product. We always will. But batches fail. Sterility fails ... and then you don’t have a product for that second dose,” Alex Azar, secretary of health and human services, told the American Hospital Association on Jan. 8, according to CNN.
“And frankly, talking about that or encouraging that can really undermine a critical public health need, which is that people come back for their second vaccine,” he said.
One of the main roadblocks in the vaccine rollout has been administering the doses that have already been distributed. The U.S. has shipped 22.1 million doses, and 6.6 million first shots have been given, according to the latest CDC data updated Jan. 8. Mr. Azar and other federal health officials have encouraged states to use their current supply and expand vaccine access to more priority groups.
“We would be delighted to learn that jurisdictions have actually administered many more doses than they are presently reporting,” a spokesman for the U.S. Department of Health and Human Services told CNN. “We are encouraging jurisdictions to expand their priority groups as needed to ensure no vaccine is sitting on the shelf after having been delivered to the jurisdiction-directed locations.”
Releasing more vaccines for first doses could create ethical concerns as well, since people getting vaccines expect to get a second dose in the proper amount of time, according to The Week. Biden’s transition team said on Jan. 8 that he won’t delay the second dose but, instead, plans to ramp up production to stay on track.
To do this well, the federal government should create a coordinated vaccine strategy that sets expectations for an around-the-clock operation and help state and local vaccination programs meet their goals, Leana Wen, MD, a professor at George Washington University, wrote in an editorial for The Washington Post.
“The Biden team’s urgency around vaccinations is commendable,” she added in a Twitter post on Jan. 11. “I’d like to see a guarantee that every 1st dose given will be followed with a timely 2nd dose. Otherwise, there are ethical concerns that could add to vaccine hesitancy.”
Biden has pledged that 100 million doses will be administered in his first 100 days in office. He has grown frustrated as concerns grow that his administration could fall short of the promise, according to Politico. His coronavirus response team has noted several challenges, including what they say is a lack of long-term planning by the Trump administration and an initial refusal to share key information.
“We’re uncovering new information each day, and we’re unearthing – of course – more work to be done,” Vivek Murthy, MD, Biden’s nominee for surgeon general, told Politico.
The team has uncovered staffing shortages, technology problems, and issues with health care insurance coverage. The incoming Biden team has developed several initiatives, such as mobile vaccination units and new federal sites to give shots. It could take weeks to get the vaccine rollout on track, the news outlet reported.
“Will this be challenging? Absolutely,” Anthony Fauci, MD, director of the National Institute of Allergy and Infectious Diseases and Biden’s incoming chief medical adviser on the coronavirus, told Politico. “This is an unprecedented effort to vaccinate the entire country over a period of time that’s fighting against people dying at record numbers. To say it’s not a challenge would be unrealistic. Do I think it can be done? Yes.”
A version of this article first appeared on WebMD.com.
The CDC will send $3 billion to the states to boost a lagging national COVID-19 vaccination program.
The Department of Health and Human Services announced the new funding as only 30% of the more than 22 million doses of vaccine distributed in the U.S. has been injected into Americans’ arms.
Along with the $3 billion, HHS said another $19 billion is headed to states and jurisdictions to boost COVID-19 testing programs. The amount each state will receive will be determined by population.
The news comes days after President-elect Joe Biden said he planned to release all available doses of vaccine after he takes office on Jan. 20. The Trump administration has been holding back millions of doses to ensure supply of vaccine to provide the necessary second dose for those who received the first shot.
“This funding is another timely investment that will strengthen our nation’s efforts to stop the COVID-19 pandemic in America,” CDC Director Robert Redfield, MD, said in a statement. “Particularly now, it is crucial that states and communities have the resources they need to conduct testing, and to distribute and administer safe, high-quality COVID-19 vaccines safely and equitably.”
Federal officials and public health experts, however, expressed concerns this weekend about Biden’s plan.
Outgoing Trump administration officials and others said they worry that doing so will leave providers without enough second doses for people getting the two-shot vaccines.
If Biden releases all available doses and the vaccine-making process has an issue, they said, that could pose a supply risk.
“We have product that is going through QC right now – quality control – for sterility, identity check that we have tens and tens of millions of product. We always will. But batches fail. Sterility fails ... and then you don’t have a product for that second dose,” Alex Azar, secretary of health and human services, told the American Hospital Association on Jan. 8, according to CNN.
“And frankly, talking about that or encouraging that can really undermine a critical public health need, which is that people come back for their second vaccine,” he said.
One of the main roadblocks in the vaccine rollout has been administering the doses that have already been distributed. The U.S. has shipped 22.1 million doses, and 6.6 million first shots have been given, according to the latest CDC data updated Jan. 8. Mr. Azar and other federal health officials have encouraged states to use their current supply and expand vaccine access to more priority groups.
“We would be delighted to learn that jurisdictions have actually administered many more doses than they are presently reporting,” a spokesman for the U.S. Department of Health and Human Services told CNN. “We are encouraging jurisdictions to expand their priority groups as needed to ensure no vaccine is sitting on the shelf after having been delivered to the jurisdiction-directed locations.”
Releasing more vaccines for first doses could create ethical concerns as well, since people getting vaccines expect to get a second dose in the proper amount of time, according to The Week. Biden’s transition team said on Jan. 8 that he won’t delay the second dose but, instead, plans to ramp up production to stay on track.
To do this well, the federal government should create a coordinated vaccine strategy that sets expectations for an around-the-clock operation and help state and local vaccination programs meet their goals, Leana Wen, MD, a professor at George Washington University, wrote in an editorial for The Washington Post.
“The Biden team’s urgency around vaccinations is commendable,” she added in a Twitter post on Jan. 11. “I’d like to see a guarantee that every 1st dose given will be followed with a timely 2nd dose. Otherwise, there are ethical concerns that could add to vaccine hesitancy.”
Biden has pledged that 100 million doses will be administered in his first 100 days in office. He has grown frustrated as concerns grow that his administration could fall short of the promise, according to Politico. His coronavirus response team has noted several challenges, including what they say is a lack of long-term planning by the Trump administration and an initial refusal to share key information.
“We’re uncovering new information each day, and we’re unearthing – of course – more work to be done,” Vivek Murthy, MD, Biden’s nominee for surgeon general, told Politico.
The team has uncovered staffing shortages, technology problems, and issues with health care insurance coverage. The incoming Biden team has developed several initiatives, such as mobile vaccination units and new federal sites to give shots. It could take weeks to get the vaccine rollout on track, the news outlet reported.
“Will this be challenging? Absolutely,” Anthony Fauci, MD, director of the National Institute of Allergy and Infectious Diseases and Biden’s incoming chief medical adviser on the coronavirus, told Politico. “This is an unprecedented effort to vaccinate the entire country over a period of time that’s fighting against people dying at record numbers. To say it’s not a challenge would be unrealistic. Do I think it can be done? Yes.”
A version of this article first appeared on WebMD.com.
The CDC will send $3 billion to the states to boost a lagging national COVID-19 vaccination program.
The Department of Health and Human Services announced the new funding as only 30% of the more than 22 million doses of vaccine distributed in the U.S. has been injected into Americans’ arms.
Along with the $3 billion, HHS said another $19 billion is headed to states and jurisdictions to boost COVID-19 testing programs. The amount each state will receive will be determined by population.
The news comes days after President-elect Joe Biden said he planned to release all available doses of vaccine after he takes office on Jan. 20. The Trump administration has been holding back millions of doses to ensure supply of vaccine to provide the necessary second dose for those who received the first shot.
“This funding is another timely investment that will strengthen our nation’s efforts to stop the COVID-19 pandemic in America,” CDC Director Robert Redfield, MD, said in a statement. “Particularly now, it is crucial that states and communities have the resources they need to conduct testing, and to distribute and administer safe, high-quality COVID-19 vaccines safely and equitably.”
Federal officials and public health experts, however, expressed concerns this weekend about Biden’s plan.
Outgoing Trump administration officials and others said they worry that doing so will leave providers without enough second doses for people getting the two-shot vaccines.
If Biden releases all available doses and the vaccine-making process has an issue, they said, that could pose a supply risk.
“We have product that is going through QC right now – quality control – for sterility, identity check that we have tens and tens of millions of product. We always will. But batches fail. Sterility fails ... and then you don’t have a product for that second dose,” Alex Azar, secretary of health and human services, told the American Hospital Association on Jan. 8, according to CNN.
“And frankly, talking about that or encouraging that can really undermine a critical public health need, which is that people come back for their second vaccine,” he said.
One of the main roadblocks in the vaccine rollout has been administering the doses that have already been distributed. The U.S. has shipped 22.1 million doses, and 6.6 million first shots have been given, according to the latest CDC data updated Jan. 8. Mr. Azar and other federal health officials have encouraged states to use their current supply and expand vaccine access to more priority groups.
“We would be delighted to learn that jurisdictions have actually administered many more doses than they are presently reporting,” a spokesman for the U.S. Department of Health and Human Services told CNN. “We are encouraging jurisdictions to expand their priority groups as needed to ensure no vaccine is sitting on the shelf after having been delivered to the jurisdiction-directed locations.”
Releasing more vaccines for first doses could create ethical concerns as well, since people getting vaccines expect to get a second dose in the proper amount of time, according to The Week. Biden’s transition team said on Jan. 8 that he won’t delay the second dose but, instead, plans to ramp up production to stay on track.
To do this well, the federal government should create a coordinated vaccine strategy that sets expectations for an around-the-clock operation and help state and local vaccination programs meet their goals, Leana Wen, MD, a professor at George Washington University, wrote in an editorial for The Washington Post.
“The Biden team’s urgency around vaccinations is commendable,” she added in a Twitter post on Jan. 11. “I’d like to see a guarantee that every 1st dose given will be followed with a timely 2nd dose. Otherwise, there are ethical concerns that could add to vaccine hesitancy.”
Biden has pledged that 100 million doses will be administered in his first 100 days in office. He has grown frustrated as concerns grow that his administration could fall short of the promise, according to Politico. His coronavirus response team has noted several challenges, including what they say is a lack of long-term planning by the Trump administration and an initial refusal to share key information.
“We’re uncovering new information each day, and we’re unearthing – of course – more work to be done,” Vivek Murthy, MD, Biden’s nominee for surgeon general, told Politico.
The team has uncovered staffing shortages, technology problems, and issues with health care insurance coverage. The incoming Biden team has developed several initiatives, such as mobile vaccination units and new federal sites to give shots. It could take weeks to get the vaccine rollout on track, the news outlet reported.
“Will this be challenging? Absolutely,” Anthony Fauci, MD, director of the National Institute of Allergy and Infectious Diseases and Biden’s incoming chief medical adviser on the coronavirus, told Politico. “This is an unprecedented effort to vaccinate the entire country over a period of time that’s fighting against people dying at record numbers. To say it’s not a challenge would be unrealistic. Do I think it can be done? Yes.”
A version of this article first appeared on WebMD.com.
Physicians react: Doctors worry about patients reading their clinical notes
Patients will soon be able to read the notes that physicians make during an episode of care, as well as information about diagnostic testing and imaging results, tests for STDs, fetal ultrasounds, and cancer biopsies. This open access is raising concerns among physicians.
As part of the 21st Century Cures Act, patients have the right to see their medical notes. Known as Open Notes, the policy will go into effect on April 5, 2021. The Department of Health & Human Services recently changed the original start date, which was to be Nov. 2, 2020.
The mandate has some physicians worrying about potential legal risks and possible violation of doctor-patient confidentiality. When asked to share their views on the new Open Notes mandate, many physicians expressed their concerns but also cited some of the positive effects that could come from this.
Potentially more legal woes for physicians?
A key concern raised by one physician commenter is that patients could misunderstand legitimate medical terminology or even put a physician in legal crosshairs. For example, a medical term such as “spontaneous abortion” could be misconstrued by patients. A physician might write notes with the idea that a patient is reading them and thus might alter those notes in a way that creates legal trouble.
“This layers another level of censorship and legal liability onto physicians, who in attempting to be [politically correct], may omit critical information or have to use euphemisms in order to avoid conflict,” one physician said.
She also questioned whether notes might now have to be run through legal counsel before being posted to avoid potential liability.
Another doctor questioned how physicians would be able to document patients suspected of faking injuries for pain medication, for example. Could such documentation lead to lawsuits for the doctor?
As one physician noted, some patients “are drug seekers. Some refuse to aid in their own care. Some are malingerers. Not documenting that is bad medicine.”
The possibility of violating doctor-patient confidentiality laws, particularly for teenagers, could be another negative effect of Open Notes, said one physician.
“Won’t this violate the statutes that teenagers have the right to confidential evaluations?” the commenter mused. “If charts are to be immediately available, then STDs and pregnancies they weren’t ready to talk about will now be suddenly known by their parents.”
One doctor has already faced this issue. “I already ran into this problem once,” he noted. “Now I warn those on their parents’ insurance before I start the visit. I have literally had a patient state, ‘well then we are done,’ and leave without being seen due to it.”
Another physician questioned the possibility of having to write notes differently than they do now, especially if the patients have lower reading comprehension abilities.
One physician who uses Open Notes said he receives patient requests for changes that have little to do with the actual diagnosis and relate to ancillary issues. He highlighted patients who “don’t want psych diagnosis in their chart or are concerned a diagnosis will raise their insurance premium, so they ask me to delete it.”
Will Open Notes erode patient communication?
One physician questioned whether it would lead to patients being less open and forthcoming about their medical concerns with doctors.
“The main problem I see is the patient not telling me the whole story, or worse, telling me the story, and then asking me not to document it (as many have done in the past) because they don’t want their spouse, family, etc. to read the notes and they have already given their permission for them to do so, for a variety of reasons,” he commented. “This includes topics of STDs, infidelity, depression, suicidal thoughts, and other symptoms the patient doesn’t want their family to read about.”
Some physicians envision positive developments
Many physicians are unconcerned by the new mandate. “I see some potential good in this, such as improving doctor-patient communication and more scrupulous charting,” one physician said.
A doctor working in the U.S. federal health care system noted that open access has been a part of that system for decades.
“Since health care providers work in this unveiled setting for their entire career, they usually know how to write appropriate clinical notes and what information needs to be included in them,” he wrote. “Now it’s time for the rest of the medical community to catch up to a reality that we have worked within for decades now.
“The world did not end, malpractice complaints did not increase, and physician/patient relationships were not damaged. Living in the information age, archaic practices like private notes were surely going to end at some point.”
One doctor who has been using Open Notes has had experiences in which the patient noted an error in the medical chart that needed correcting. “I have had one patient correct me on a timeline in the HPI which was helpful and I made the requested correction in that instance,” he said.
Another physician agreed. “I’ve had patients add or correct valuable information I’ve missed. Good probably outweighs the bad if we set limits on behaviors expressed by the personality disordered group. The majority of people don’t seem to care and still ask me ‘what would you do’ or ‘tell me what to do.’ It’s all about patient/physician trust.”
Another talked about how Open Notes should have little or no impact. “Here’s a novel concept – talking to our patients,” he commented. “There is nothing in every one of my chart notes that has not already been discussed with my patients and I dictate (speech to text) my findings and plan in front of them. So, if they are reviewing my office notes, it will only serve to reinforce what we have already discussed.”
“I don’t intend to change anything,” he added. “Chances are if they were to see a test result before I have a chance to discuss it with them, they will have already ‘Googled’ its meaning and we can have more meaningful interaction if they have a basic understanding of the test.”
“I understand that this is anxiety provoking, but in general I think it is appropriate for patients to have access to their notes,” said another physician. “If physicians write lousy notes that say they did things they didn’t do, that fail to actually state a diagnosis and a plan (and they often do), that is the doc’s problem, not the patient’s.”
A version of this article first appeared on Medscape.com.
Patients will soon be able to read the notes that physicians make during an episode of care, as well as information about diagnostic testing and imaging results, tests for STDs, fetal ultrasounds, and cancer biopsies. This open access is raising concerns among physicians.
As part of the 21st Century Cures Act, patients have the right to see their medical notes. Known as Open Notes, the policy will go into effect on April 5, 2021. The Department of Health & Human Services recently changed the original start date, which was to be Nov. 2, 2020.
The mandate has some physicians worrying about potential legal risks and possible violation of doctor-patient confidentiality. When asked to share their views on the new Open Notes mandate, many physicians expressed their concerns but also cited some of the positive effects that could come from this.
Potentially more legal woes for physicians?
A key concern raised by one physician commenter is that patients could misunderstand legitimate medical terminology or even put a physician in legal crosshairs. For example, a medical term such as “spontaneous abortion” could be misconstrued by patients. A physician might write notes with the idea that a patient is reading them and thus might alter those notes in a way that creates legal trouble.
“This layers another level of censorship and legal liability onto physicians, who in attempting to be [politically correct], may omit critical information or have to use euphemisms in order to avoid conflict,” one physician said.
She also questioned whether notes might now have to be run through legal counsel before being posted to avoid potential liability.
Another doctor questioned how physicians would be able to document patients suspected of faking injuries for pain medication, for example. Could such documentation lead to lawsuits for the doctor?
As one physician noted, some patients “are drug seekers. Some refuse to aid in their own care. Some are malingerers. Not documenting that is bad medicine.”
The possibility of violating doctor-patient confidentiality laws, particularly for teenagers, could be another negative effect of Open Notes, said one physician.
“Won’t this violate the statutes that teenagers have the right to confidential evaluations?” the commenter mused. “If charts are to be immediately available, then STDs and pregnancies they weren’t ready to talk about will now be suddenly known by their parents.”
One doctor has already faced this issue. “I already ran into this problem once,” he noted. “Now I warn those on their parents’ insurance before I start the visit. I have literally had a patient state, ‘well then we are done,’ and leave without being seen due to it.”
Another physician questioned the possibility of having to write notes differently than they do now, especially if the patients have lower reading comprehension abilities.
One physician who uses Open Notes said he receives patient requests for changes that have little to do with the actual diagnosis and relate to ancillary issues. He highlighted patients who “don’t want psych diagnosis in their chart or are concerned a diagnosis will raise their insurance premium, so they ask me to delete it.”
Will Open Notes erode patient communication?
One physician questioned whether it would lead to patients being less open and forthcoming about their medical concerns with doctors.
“The main problem I see is the patient not telling me the whole story, or worse, telling me the story, and then asking me not to document it (as many have done in the past) because they don’t want their spouse, family, etc. to read the notes and they have already given their permission for them to do so, for a variety of reasons,” he commented. “This includes topics of STDs, infidelity, depression, suicidal thoughts, and other symptoms the patient doesn’t want their family to read about.”
Some physicians envision positive developments
Many physicians are unconcerned by the new mandate. “I see some potential good in this, such as improving doctor-patient communication and more scrupulous charting,” one physician said.
A doctor working in the U.S. federal health care system noted that open access has been a part of that system for decades.
“Since health care providers work in this unveiled setting for their entire career, they usually know how to write appropriate clinical notes and what information needs to be included in them,” he wrote. “Now it’s time for the rest of the medical community to catch up to a reality that we have worked within for decades now.
“The world did not end, malpractice complaints did not increase, and physician/patient relationships were not damaged. Living in the information age, archaic practices like private notes were surely going to end at some point.”
One doctor who has been using Open Notes has had experiences in which the patient noted an error in the medical chart that needed correcting. “I have had one patient correct me on a timeline in the HPI which was helpful and I made the requested correction in that instance,” he said.
Another physician agreed. “I’ve had patients add or correct valuable information I’ve missed. Good probably outweighs the bad if we set limits on behaviors expressed by the personality disordered group. The majority of people don’t seem to care and still ask me ‘what would you do’ or ‘tell me what to do.’ It’s all about patient/physician trust.”
Another talked about how Open Notes should have little or no impact. “Here’s a novel concept – talking to our patients,” he commented. “There is nothing in every one of my chart notes that has not already been discussed with my patients and I dictate (speech to text) my findings and plan in front of them. So, if they are reviewing my office notes, it will only serve to reinforce what we have already discussed.”
“I don’t intend to change anything,” he added. “Chances are if they were to see a test result before I have a chance to discuss it with them, they will have already ‘Googled’ its meaning and we can have more meaningful interaction if they have a basic understanding of the test.”
“I understand that this is anxiety provoking, but in general I think it is appropriate for patients to have access to their notes,” said another physician. “If physicians write lousy notes that say they did things they didn’t do, that fail to actually state a diagnosis and a plan (and they often do), that is the doc’s problem, not the patient’s.”
A version of this article first appeared on Medscape.com.
Patients will soon be able to read the notes that physicians make during an episode of care, as well as information about diagnostic testing and imaging results, tests for STDs, fetal ultrasounds, and cancer biopsies. This open access is raising concerns among physicians.
As part of the 21st Century Cures Act, patients have the right to see their medical notes. Known as Open Notes, the policy will go into effect on April 5, 2021. The Department of Health & Human Services recently changed the original start date, which was to be Nov. 2, 2020.
The mandate has some physicians worrying about potential legal risks and possible violation of doctor-patient confidentiality. When asked to share their views on the new Open Notes mandate, many physicians expressed their concerns but also cited some of the positive effects that could come from this.
Potentially more legal woes for physicians?
A key concern raised by one physician commenter is that patients could misunderstand legitimate medical terminology or even put a physician in legal crosshairs. For example, a medical term such as “spontaneous abortion” could be misconstrued by patients. A physician might write notes with the idea that a patient is reading them and thus might alter those notes in a way that creates legal trouble.
“This layers another level of censorship and legal liability onto physicians, who in attempting to be [politically correct], may omit critical information or have to use euphemisms in order to avoid conflict,” one physician said.
She also questioned whether notes might now have to be run through legal counsel before being posted to avoid potential liability.
Another doctor questioned how physicians would be able to document patients suspected of faking injuries for pain medication, for example. Could such documentation lead to lawsuits for the doctor?
As one physician noted, some patients “are drug seekers. Some refuse to aid in their own care. Some are malingerers. Not documenting that is bad medicine.”
The possibility of violating doctor-patient confidentiality laws, particularly for teenagers, could be another negative effect of Open Notes, said one physician.
“Won’t this violate the statutes that teenagers have the right to confidential evaluations?” the commenter mused. “If charts are to be immediately available, then STDs and pregnancies they weren’t ready to talk about will now be suddenly known by their parents.”
One doctor has already faced this issue. “I already ran into this problem once,” he noted. “Now I warn those on their parents’ insurance before I start the visit. I have literally had a patient state, ‘well then we are done,’ and leave without being seen due to it.”
Another physician questioned the possibility of having to write notes differently than they do now, especially if the patients have lower reading comprehension abilities.
One physician who uses Open Notes said he receives patient requests for changes that have little to do with the actual diagnosis and relate to ancillary issues. He highlighted patients who “don’t want psych diagnosis in their chart or are concerned a diagnosis will raise their insurance premium, so they ask me to delete it.”
Will Open Notes erode patient communication?
One physician questioned whether it would lead to patients being less open and forthcoming about their medical concerns with doctors.
“The main problem I see is the patient not telling me the whole story, or worse, telling me the story, and then asking me not to document it (as many have done in the past) because they don’t want their spouse, family, etc. to read the notes and they have already given their permission for them to do so, for a variety of reasons,” he commented. “This includes topics of STDs, infidelity, depression, suicidal thoughts, and other symptoms the patient doesn’t want their family to read about.”
Some physicians envision positive developments
Many physicians are unconcerned by the new mandate. “I see some potential good in this, such as improving doctor-patient communication and more scrupulous charting,” one physician said.
A doctor working in the U.S. federal health care system noted that open access has been a part of that system for decades.
“Since health care providers work in this unveiled setting for their entire career, they usually know how to write appropriate clinical notes and what information needs to be included in them,” he wrote. “Now it’s time for the rest of the medical community to catch up to a reality that we have worked within for decades now.
“The world did not end, malpractice complaints did not increase, and physician/patient relationships were not damaged. Living in the information age, archaic practices like private notes were surely going to end at some point.”
One doctor who has been using Open Notes has had experiences in which the patient noted an error in the medical chart that needed correcting. “I have had one patient correct me on a timeline in the HPI which was helpful and I made the requested correction in that instance,” he said.
Another physician agreed. “I’ve had patients add or correct valuable information I’ve missed. Good probably outweighs the bad if we set limits on behaviors expressed by the personality disordered group. The majority of people don’t seem to care and still ask me ‘what would you do’ or ‘tell me what to do.’ It’s all about patient/physician trust.”
Another talked about how Open Notes should have little or no impact. “Here’s a novel concept – talking to our patients,” he commented. “There is nothing in every one of my chart notes that has not already been discussed with my patients and I dictate (speech to text) my findings and plan in front of them. So, if they are reviewing my office notes, it will only serve to reinforce what we have already discussed.”
“I don’t intend to change anything,” he added. “Chances are if they were to see a test result before I have a chance to discuss it with them, they will have already ‘Googled’ its meaning and we can have more meaningful interaction if they have a basic understanding of the test.”
“I understand that this is anxiety provoking, but in general I think it is appropriate for patients to have access to their notes,” said another physician. “If physicians write lousy notes that say they did things they didn’t do, that fail to actually state a diagnosis and a plan (and they often do), that is the doc’s problem, not the patient’s.”
A version of this article first appeared on Medscape.com.
Updated ACC decision pathway embraces new heart failure treatment strategies
A newly updated expert consensus from the American College of Cardiology for management of heart failure with reduced ejection fraction includes several new guideline-directed medical therapies among other substantial changes relative to its 2017 predecessor.
The advances in treatment of heart failure with reduced ejection fraction (HFrEF) have resulted in a substantial increase in complexity in reaching treatment goals, according to the authors of the new guidance. Structured similarly to the 2017 ACC Expert Consensus Decision Pathway, the update accommodates a series of practical tips to bring all patients on board with the newer as well as the established therapies with lifesaving potential.
The potential return from implementing these recommendations is not trivial. Relative to an ACE inhibitor and a beta-blocker alone, optimal implementation of the current guideline-directed medical therapies (GDMT) “can extend medical survival by more than 6 years,” according to Gregg C. Fonarow, MD, chief of cardiology at the University of California, Los Angeles.
A member of the writing committee for the 2021 update, Dr. Fonarow explained that the consensus pathway is more than a list of therapies and recommended doses. The detailed advice on how to overcome the barriers to GDMT is meant to close the substantial gap between current practice and unmet opportunities for inhibiting HFrEF progression.
“Optimal GDMT among HFrEF patients is distressingly low, due in part to the number and complexity of medications that now constitute GDMT,” said the chair of the writing committee, Thomas M. Maddox, MD, executive director, Healthcare Innovation Lab, BJC HealthCare/Washington University, St. Louis. Like Dr. Fonarow, Dr. Maddox emphasized that the importance of the update for the practical strategies it offers to place patients on optimal care.
In the 2017 guidance, 10 pivotal issues were tackled, ranging from advice of how to put HFrEF patients on the multiple drugs that now constitute optimal therapy to when to transition patients to hospice care. The 2021 update covers the same ground but incorporates new information that has changed the definition of optimal care.
Perhaps most importantly, sacubitril/valsartan, an angiotensin receptor neprilysin inhibitor (ARNi), and SGLT2 inhibitors represent major new additions in HFrEF GDMT. Dr. Maddox called the practical information about how these should be incorporated into HFrEF management represents one of the “major highlights” of the update.
Two algorithms outline the expert consensus recommendations of the order and the dose of the multiple drugs that now constitute the current GDMT. With the goal of explaining exactly how to place patients on all the HFrEF therapies associated with improved outcome, “I think these figures can really help us in guiding our patients to optimal medication regimens and dosages,” Dr. Maddox said. If successful, clinicians “can make a significant difference in these patients’ length and quality of life.”
Most cardiologists and others who treat HFrEF are likely aware of the major improvements in outcome documented in large trials when an ARNi and a SGLT2 inhibitor were added to previously established GDMT, but the update like the 2017 document is focused on the practical strategies of implementation, according to Larry A. Allen, MD, medical director of advanced heart failure at the University of Colorado at Denver, Aurora.
“The 2017 Expert Consensus Decision Pathway got a lot of attention because it takes a very practical approach to questions that clinicians and their patients have to tackle everyday but for which there was not always clean answers from the data,” said Dr. Allen, a member of the writing committee for both the 2017 expert consensus and the 2021 update. He noted that the earlier document was one of the most downloaded articles from the ACC’s journal in the year it appeared.
“There is excellent data on the benefits of beta-blockers, ARNi, mineralocorticoid antagonists, and SGLT2 inhibitors, but how does one decide what order to use them in?” Dr. Allen asked in outlining goals of the expert consensus.
While the new update “focuses on the newer drug classes, particularly SGLT2 inhibitors,” it traces care from first-line therapies to end-of-life management, according to Dr. Allen. This includes information on when to consider advanced therapies, such as left ventricular assist devices or transplant in order to get patients to these treatments before the opportunity for benefit is missed.
Both the 2017 version and the update offer a table to summarize triggers for referral. The complexity of individualizing care in a group of patients likely to have variable manifestations of disease and multiple comorbidities was a theme of the 2017 document that has been reprised in the 2021 update,
“Good communication and team-based care” is one of common management gaps that the update addresses, Dr. Allen said. He indicated that the checklists and algorithms in the update would help with complex decision-making and encourage the multidisciplinary care that ensures optimal management.
SOURCE: Maddox TM et al. J Am Coll Cardiol. 2021 Jan 11. doi: 10.1016/j.jacc.2020.11.022.
A newly updated expert consensus from the American College of Cardiology for management of heart failure with reduced ejection fraction includes several new guideline-directed medical therapies among other substantial changes relative to its 2017 predecessor.
The advances in treatment of heart failure with reduced ejection fraction (HFrEF) have resulted in a substantial increase in complexity in reaching treatment goals, according to the authors of the new guidance. Structured similarly to the 2017 ACC Expert Consensus Decision Pathway, the update accommodates a series of practical tips to bring all patients on board with the newer as well as the established therapies with lifesaving potential.
The potential return from implementing these recommendations is not trivial. Relative to an ACE inhibitor and a beta-blocker alone, optimal implementation of the current guideline-directed medical therapies (GDMT) “can extend medical survival by more than 6 years,” according to Gregg C. Fonarow, MD, chief of cardiology at the University of California, Los Angeles.
A member of the writing committee for the 2021 update, Dr. Fonarow explained that the consensus pathway is more than a list of therapies and recommended doses. The detailed advice on how to overcome the barriers to GDMT is meant to close the substantial gap between current practice and unmet opportunities for inhibiting HFrEF progression.
“Optimal GDMT among HFrEF patients is distressingly low, due in part to the number and complexity of medications that now constitute GDMT,” said the chair of the writing committee, Thomas M. Maddox, MD, executive director, Healthcare Innovation Lab, BJC HealthCare/Washington University, St. Louis. Like Dr. Fonarow, Dr. Maddox emphasized that the importance of the update for the practical strategies it offers to place patients on optimal care.
In the 2017 guidance, 10 pivotal issues were tackled, ranging from advice of how to put HFrEF patients on the multiple drugs that now constitute optimal therapy to when to transition patients to hospice care. The 2021 update covers the same ground but incorporates new information that has changed the definition of optimal care.
Perhaps most importantly, sacubitril/valsartan, an angiotensin receptor neprilysin inhibitor (ARNi), and SGLT2 inhibitors represent major new additions in HFrEF GDMT. Dr. Maddox called the practical information about how these should be incorporated into HFrEF management represents one of the “major highlights” of the update.
Two algorithms outline the expert consensus recommendations of the order and the dose of the multiple drugs that now constitute the current GDMT. With the goal of explaining exactly how to place patients on all the HFrEF therapies associated with improved outcome, “I think these figures can really help us in guiding our patients to optimal medication regimens and dosages,” Dr. Maddox said. If successful, clinicians “can make a significant difference in these patients’ length and quality of life.”
Most cardiologists and others who treat HFrEF are likely aware of the major improvements in outcome documented in large trials when an ARNi and a SGLT2 inhibitor were added to previously established GDMT, but the update like the 2017 document is focused on the practical strategies of implementation, according to Larry A. Allen, MD, medical director of advanced heart failure at the University of Colorado at Denver, Aurora.
“The 2017 Expert Consensus Decision Pathway got a lot of attention because it takes a very practical approach to questions that clinicians and their patients have to tackle everyday but for which there was not always clean answers from the data,” said Dr. Allen, a member of the writing committee for both the 2017 expert consensus and the 2021 update. He noted that the earlier document was one of the most downloaded articles from the ACC’s journal in the year it appeared.
“There is excellent data on the benefits of beta-blockers, ARNi, mineralocorticoid antagonists, and SGLT2 inhibitors, but how does one decide what order to use them in?” Dr. Allen asked in outlining goals of the expert consensus.
While the new update “focuses on the newer drug classes, particularly SGLT2 inhibitors,” it traces care from first-line therapies to end-of-life management, according to Dr. Allen. This includes information on when to consider advanced therapies, such as left ventricular assist devices or transplant in order to get patients to these treatments before the opportunity for benefit is missed.
Both the 2017 version and the update offer a table to summarize triggers for referral. The complexity of individualizing care in a group of patients likely to have variable manifestations of disease and multiple comorbidities was a theme of the 2017 document that has been reprised in the 2021 update,
“Good communication and team-based care” is one of common management gaps that the update addresses, Dr. Allen said. He indicated that the checklists and algorithms in the update would help with complex decision-making and encourage the multidisciplinary care that ensures optimal management.
SOURCE: Maddox TM et al. J Am Coll Cardiol. 2021 Jan 11. doi: 10.1016/j.jacc.2020.11.022.
A newly updated expert consensus from the American College of Cardiology for management of heart failure with reduced ejection fraction includes several new guideline-directed medical therapies among other substantial changes relative to its 2017 predecessor.
The advances in treatment of heart failure with reduced ejection fraction (HFrEF) have resulted in a substantial increase in complexity in reaching treatment goals, according to the authors of the new guidance. Structured similarly to the 2017 ACC Expert Consensus Decision Pathway, the update accommodates a series of practical tips to bring all patients on board with the newer as well as the established therapies with lifesaving potential.
The potential return from implementing these recommendations is not trivial. Relative to an ACE inhibitor and a beta-blocker alone, optimal implementation of the current guideline-directed medical therapies (GDMT) “can extend medical survival by more than 6 years,” according to Gregg C. Fonarow, MD, chief of cardiology at the University of California, Los Angeles.
A member of the writing committee for the 2021 update, Dr. Fonarow explained that the consensus pathway is more than a list of therapies and recommended doses. The detailed advice on how to overcome the barriers to GDMT is meant to close the substantial gap between current practice and unmet opportunities for inhibiting HFrEF progression.
“Optimal GDMT among HFrEF patients is distressingly low, due in part to the number and complexity of medications that now constitute GDMT,” said the chair of the writing committee, Thomas M. Maddox, MD, executive director, Healthcare Innovation Lab, BJC HealthCare/Washington University, St. Louis. Like Dr. Fonarow, Dr. Maddox emphasized that the importance of the update for the practical strategies it offers to place patients on optimal care.
In the 2017 guidance, 10 pivotal issues were tackled, ranging from advice of how to put HFrEF patients on the multiple drugs that now constitute optimal therapy to when to transition patients to hospice care. The 2021 update covers the same ground but incorporates new information that has changed the definition of optimal care.
Perhaps most importantly, sacubitril/valsartan, an angiotensin receptor neprilysin inhibitor (ARNi), and SGLT2 inhibitors represent major new additions in HFrEF GDMT. Dr. Maddox called the practical information about how these should be incorporated into HFrEF management represents one of the “major highlights” of the update.
Two algorithms outline the expert consensus recommendations of the order and the dose of the multiple drugs that now constitute the current GDMT. With the goal of explaining exactly how to place patients on all the HFrEF therapies associated with improved outcome, “I think these figures can really help us in guiding our patients to optimal medication regimens and dosages,” Dr. Maddox said. If successful, clinicians “can make a significant difference in these patients’ length and quality of life.”
Most cardiologists and others who treat HFrEF are likely aware of the major improvements in outcome documented in large trials when an ARNi and a SGLT2 inhibitor were added to previously established GDMT, but the update like the 2017 document is focused on the practical strategies of implementation, according to Larry A. Allen, MD, medical director of advanced heart failure at the University of Colorado at Denver, Aurora.
“The 2017 Expert Consensus Decision Pathway got a lot of attention because it takes a very practical approach to questions that clinicians and their patients have to tackle everyday but for which there was not always clean answers from the data,” said Dr. Allen, a member of the writing committee for both the 2017 expert consensus and the 2021 update. He noted that the earlier document was one of the most downloaded articles from the ACC’s journal in the year it appeared.
“There is excellent data on the benefits of beta-blockers, ARNi, mineralocorticoid antagonists, and SGLT2 inhibitors, but how does one decide what order to use them in?” Dr. Allen asked in outlining goals of the expert consensus.
While the new update “focuses on the newer drug classes, particularly SGLT2 inhibitors,” it traces care from first-line therapies to end-of-life management, according to Dr. Allen. This includes information on when to consider advanced therapies, such as left ventricular assist devices or transplant in order to get patients to these treatments before the opportunity for benefit is missed.
Both the 2017 version and the update offer a table to summarize triggers for referral. The complexity of individualizing care in a group of patients likely to have variable manifestations of disease and multiple comorbidities was a theme of the 2017 document that has been reprised in the 2021 update,
“Good communication and team-based care” is one of common management gaps that the update addresses, Dr. Allen said. He indicated that the checklists and algorithms in the update would help with complex decision-making and encourage the multidisciplinary care that ensures optimal management.
SOURCE: Maddox TM et al. J Am Coll Cardiol. 2021 Jan 11. doi: 10.1016/j.jacc.2020.11.022.
FROM THE JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
Over half of COVID-19 transmission may occur via asymptomatic people
As COVID-19 cases surge and vaccinations lag, health authorities continue to seek additional ways to mitigate the spread of the novel coronavirus.
Now, a modeling study estimates that more than half of transmissions come from pre-, never-, and asymptomatic individuals, indicating that symptom-based screening will have little effect on spread.
The Centers for Disease Control and Prevention study, published online Jan. 7 in JAMA Network Open, concludes that for optimal control, protective measures such as masking and social distancing should be supplemented with strategic testing of potentially exposed but asymptomatic individuals .
“In the absence of effective and widespread use of therapeutics or vaccines that can shorten or eliminate infectivity, successful control of SARS-CoV-2 cannot rely solely on identifying and isolating symptomatic cases; even if implemented effectively, this strategy would be insufficient,” CDC biologist Michael J. Johansson, PhD, and colleagues warn. “Multiple measures that effectively address transmission risk in the absence of symptoms are imperative to control SARS-CoV-2.”
According to the authors, the effectiveness of some current transmission prevention efforts has been disputed and subject to mixed messaging. Therefore, they decided to model the proportion of COVID-19 infections that are likely the result of individuals who show no symptoms and may be unknowingly infecting others.
“Unfortunately, there continues to be some skepticism about the value of community-wide mitigation efforts for preventing transmission such as masking, distancing, and hand hygiene, particularly for people without symptoms,” corresponding author Jay C. Butler, MD, said in an interview. “So we wanted to have a base assumption about how much transmission occurs from asymptomatic people to underscore the importance of mitigation measures and of creating immunity through vaccine delivery.”
Such a yardstick is especially germane in the context of the new, more transmissible variant. “It really puts [things] in a bigger box and underscores, boldfaces, and italicizes the need to change people’s behaviors and the importance of mitigation,” Dr. Butler said. It also highlights the advisability of targeted strategic testing in congregate settings, schools, and universities, which is already underway.
The analysis
Based on data from several COVID-19 studies from last year, the CDC’s analytical model assumes at baseline that infectiousness peaks at the median point of symptom onset, and that 30% of infected individuals never develop symptoms but are nevertheless 75% as infectious as those who develop overt symptoms.
The investigators then model multiple scenarios of transmission based pre- and never-symptomatic individuals, assuming different incubation and infectious periods, and varying numbers of days from point of infection to symptom onset.
When combined, the models predicts that 59% of all transmission would come from asymptomatic transmission – 35% from presymptomatic individuals and 24% from never-symptomatic individuals.
The findings complement those of an earlier CDC analysis, according to the authors.
The overall proportion of transmission from presymptomatic and never-symptomatic individuals is key to identifying mitigation measures that may be able to control SARS-CoV-2, the authors stated.
For example, they explain, if the infection reproduction number (R) in a particular setting is 2.0, a reduction in transmission of at least 50% is needed in order to reduce R to below 1.0. “Given that in some settings R is likely much greater than 2 and more than half of transmissions may come from individuals who are asymptomatic at the time of transmission, effective control must mitigate transmission risk from people without symptoms,” they wrote.
The authors acknowledge that the study applies a simplistic model to a complex and evolving phenomenon, and that the exact proportions of presymptomatic and never-symptomatic transmission and the incubation periods are not known. They also note symptoms and transmissions appear to vary across different population groups, with older individuals more likely than younger persons to experience symptoms, according to previous studies.
“Assume that everyone is potentially infected”
Other experts agree that expanded testing of asymptomatic individuals is important. “Screening for fever and isolation of symptomatic individuals is a common-sense approach to help prevent spread, but these measures are by no means adequate since it’s been clearly documented that individuals who are either asymptomatic or presymptomatic can still spread the virus,” said Brett Williams, MD, an infectious disease specialist and assistant professor of medicine at Rush University in Chicago.
“As we saw with the White House Rose Garden superspreader outbreak, testing does not reliably exclude infection either because the tested individual has not yet become positive or the test is falsely negative,” Dr. Williams, who was not involved in the CDC study, said in an interview. He further noted that when prevalence is as high as it currently is in the United States, the rate of false negatives will be high because a large proportion of those screened will be unknowingly infected.
At his center, all visitors and staff are screened with a temperature probe on entry, and since the earliest days of the pandemic, universal masking has been required. “Nationally there have been many instances of hospital break room outbreaks because of staff eating lunch together, and these outbreaks also demonstrate the incompleteness of symptomatic isolation,” Dr. Williams said.
For his part, virologist Frank Esper, MD, a pediatric infectious disease specialist at the Cleveland Clinic, said that while it’s been understood for some time that many infected people will not exhibit symptoms, “the question that remains is just how infectious are they?”
Dr. Esper’s takeaway from the modeling study is not so much that we need more screening of possibly exposed but asymptomatic people, but rather testing symptomatic people and tracing their contacts is not enough.
“We need to continue to assume that everyone is potentially infected whether they know it or not. And even though we have ramped up our testing to a much greater capacity than in the first wave, we need to continue to wear masks and socially distance because just identifying people who are sick and isolating or quarantining them is not going to be enough to contain the pandemic.”
And although assumption-based modeling is helpful, it cannot tell us “how many asymptomatic people are actually infected,” said Dr. Esper, who was not involved in the CDC study.
Dr. Esper also pointed out that the study estimates are based on data from early Chinese studies, but the virus has since changed. The new, more transmissible strain in the United States and elsewhere may involve not only more infections but also a longer presymptomatic stage. “So the CDC study may actually undershoot asymptomatic infections,” he said.
He also agreed with the authors that when it comes to infection, not all humans are equal. “Older people tend to be more symptomatic and become symptomatic more quickly so the asymptomatic rate is not the same across board from young people age 20 to older people.”
The bottom line, said David. A. Hirschwerk, MD, an infectious disease specialist at Northwell Health in Manhasset, N.Y., is that these data support the maintenance of protective measures we’ve been taking over the past months. “They support the concept that asymptomatic people are a significant source of transmission and that we need to adhere to mask wearing and social distancing, particularly indoors,” Dr. Hirschwerk, who was not involved in the analysis, said in an interview. “More testing would be better but it has to be fast and it has to be efficient, and there are a lot of challenges to overcome.”
The study was done as part of the CDC’s coronavirus disease 2019 response and was supported solely by federal base and response funding. The authors and commentators have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
As COVID-19 cases surge and vaccinations lag, health authorities continue to seek additional ways to mitigate the spread of the novel coronavirus.
Now, a modeling study estimates that more than half of transmissions come from pre-, never-, and asymptomatic individuals, indicating that symptom-based screening will have little effect on spread.
The Centers for Disease Control and Prevention study, published online Jan. 7 in JAMA Network Open, concludes that for optimal control, protective measures such as masking and social distancing should be supplemented with strategic testing of potentially exposed but asymptomatic individuals .
“In the absence of effective and widespread use of therapeutics or vaccines that can shorten or eliminate infectivity, successful control of SARS-CoV-2 cannot rely solely on identifying and isolating symptomatic cases; even if implemented effectively, this strategy would be insufficient,” CDC biologist Michael J. Johansson, PhD, and colleagues warn. “Multiple measures that effectively address transmission risk in the absence of symptoms are imperative to control SARS-CoV-2.”
According to the authors, the effectiveness of some current transmission prevention efforts has been disputed and subject to mixed messaging. Therefore, they decided to model the proportion of COVID-19 infections that are likely the result of individuals who show no symptoms and may be unknowingly infecting others.
“Unfortunately, there continues to be some skepticism about the value of community-wide mitigation efforts for preventing transmission such as masking, distancing, and hand hygiene, particularly for people without symptoms,” corresponding author Jay C. Butler, MD, said in an interview. “So we wanted to have a base assumption about how much transmission occurs from asymptomatic people to underscore the importance of mitigation measures and of creating immunity through vaccine delivery.”
Such a yardstick is especially germane in the context of the new, more transmissible variant. “It really puts [things] in a bigger box and underscores, boldfaces, and italicizes the need to change people’s behaviors and the importance of mitigation,” Dr. Butler said. It also highlights the advisability of targeted strategic testing in congregate settings, schools, and universities, which is already underway.
The analysis
Based on data from several COVID-19 studies from last year, the CDC’s analytical model assumes at baseline that infectiousness peaks at the median point of symptom onset, and that 30% of infected individuals never develop symptoms but are nevertheless 75% as infectious as those who develop overt symptoms.
The investigators then model multiple scenarios of transmission based pre- and never-symptomatic individuals, assuming different incubation and infectious periods, and varying numbers of days from point of infection to symptom onset.
When combined, the models predicts that 59% of all transmission would come from asymptomatic transmission – 35% from presymptomatic individuals and 24% from never-symptomatic individuals.
The findings complement those of an earlier CDC analysis, according to the authors.
The overall proportion of transmission from presymptomatic and never-symptomatic individuals is key to identifying mitigation measures that may be able to control SARS-CoV-2, the authors stated.
For example, they explain, if the infection reproduction number (R) in a particular setting is 2.0, a reduction in transmission of at least 50% is needed in order to reduce R to below 1.0. “Given that in some settings R is likely much greater than 2 and more than half of transmissions may come from individuals who are asymptomatic at the time of transmission, effective control must mitigate transmission risk from people without symptoms,” they wrote.
The authors acknowledge that the study applies a simplistic model to a complex and evolving phenomenon, and that the exact proportions of presymptomatic and never-symptomatic transmission and the incubation periods are not known. They also note symptoms and transmissions appear to vary across different population groups, with older individuals more likely than younger persons to experience symptoms, according to previous studies.
“Assume that everyone is potentially infected”
Other experts agree that expanded testing of asymptomatic individuals is important. “Screening for fever and isolation of symptomatic individuals is a common-sense approach to help prevent spread, but these measures are by no means adequate since it’s been clearly documented that individuals who are either asymptomatic or presymptomatic can still spread the virus,” said Brett Williams, MD, an infectious disease specialist and assistant professor of medicine at Rush University in Chicago.
“As we saw with the White House Rose Garden superspreader outbreak, testing does not reliably exclude infection either because the tested individual has not yet become positive or the test is falsely negative,” Dr. Williams, who was not involved in the CDC study, said in an interview. He further noted that when prevalence is as high as it currently is in the United States, the rate of false negatives will be high because a large proportion of those screened will be unknowingly infected.
At his center, all visitors and staff are screened with a temperature probe on entry, and since the earliest days of the pandemic, universal masking has been required. “Nationally there have been many instances of hospital break room outbreaks because of staff eating lunch together, and these outbreaks also demonstrate the incompleteness of symptomatic isolation,” Dr. Williams said.
For his part, virologist Frank Esper, MD, a pediatric infectious disease specialist at the Cleveland Clinic, said that while it’s been understood for some time that many infected people will not exhibit symptoms, “the question that remains is just how infectious are they?”
Dr. Esper’s takeaway from the modeling study is not so much that we need more screening of possibly exposed but asymptomatic people, but rather testing symptomatic people and tracing their contacts is not enough.
“We need to continue to assume that everyone is potentially infected whether they know it or not. And even though we have ramped up our testing to a much greater capacity than in the first wave, we need to continue to wear masks and socially distance because just identifying people who are sick and isolating or quarantining them is not going to be enough to contain the pandemic.”
And although assumption-based modeling is helpful, it cannot tell us “how many asymptomatic people are actually infected,” said Dr. Esper, who was not involved in the CDC study.
Dr. Esper also pointed out that the study estimates are based on data from early Chinese studies, but the virus has since changed. The new, more transmissible strain in the United States and elsewhere may involve not only more infections but also a longer presymptomatic stage. “So the CDC study may actually undershoot asymptomatic infections,” he said.
He also agreed with the authors that when it comes to infection, not all humans are equal. “Older people tend to be more symptomatic and become symptomatic more quickly so the asymptomatic rate is not the same across board from young people age 20 to older people.”
The bottom line, said David. A. Hirschwerk, MD, an infectious disease specialist at Northwell Health in Manhasset, N.Y., is that these data support the maintenance of protective measures we’ve been taking over the past months. “They support the concept that asymptomatic people are a significant source of transmission and that we need to adhere to mask wearing and social distancing, particularly indoors,” Dr. Hirschwerk, who was not involved in the analysis, said in an interview. “More testing would be better but it has to be fast and it has to be efficient, and there are a lot of challenges to overcome.”
The study was done as part of the CDC’s coronavirus disease 2019 response and was supported solely by federal base and response funding. The authors and commentators have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
As COVID-19 cases surge and vaccinations lag, health authorities continue to seek additional ways to mitigate the spread of the novel coronavirus.
Now, a modeling study estimates that more than half of transmissions come from pre-, never-, and asymptomatic individuals, indicating that symptom-based screening will have little effect on spread.
The Centers for Disease Control and Prevention study, published online Jan. 7 in JAMA Network Open, concludes that for optimal control, protective measures such as masking and social distancing should be supplemented with strategic testing of potentially exposed but asymptomatic individuals .
“In the absence of effective and widespread use of therapeutics or vaccines that can shorten or eliminate infectivity, successful control of SARS-CoV-2 cannot rely solely on identifying and isolating symptomatic cases; even if implemented effectively, this strategy would be insufficient,” CDC biologist Michael J. Johansson, PhD, and colleagues warn. “Multiple measures that effectively address transmission risk in the absence of symptoms are imperative to control SARS-CoV-2.”
According to the authors, the effectiveness of some current transmission prevention efforts has been disputed and subject to mixed messaging. Therefore, they decided to model the proportion of COVID-19 infections that are likely the result of individuals who show no symptoms and may be unknowingly infecting others.
“Unfortunately, there continues to be some skepticism about the value of community-wide mitigation efforts for preventing transmission such as masking, distancing, and hand hygiene, particularly for people without symptoms,” corresponding author Jay C. Butler, MD, said in an interview. “So we wanted to have a base assumption about how much transmission occurs from asymptomatic people to underscore the importance of mitigation measures and of creating immunity through vaccine delivery.”
Such a yardstick is especially germane in the context of the new, more transmissible variant. “It really puts [things] in a bigger box and underscores, boldfaces, and italicizes the need to change people’s behaviors and the importance of mitigation,” Dr. Butler said. It also highlights the advisability of targeted strategic testing in congregate settings, schools, and universities, which is already underway.
The analysis
Based on data from several COVID-19 studies from last year, the CDC’s analytical model assumes at baseline that infectiousness peaks at the median point of symptom onset, and that 30% of infected individuals never develop symptoms but are nevertheless 75% as infectious as those who develop overt symptoms.
The investigators then model multiple scenarios of transmission based pre- and never-symptomatic individuals, assuming different incubation and infectious periods, and varying numbers of days from point of infection to symptom onset.
When combined, the models predicts that 59% of all transmission would come from asymptomatic transmission – 35% from presymptomatic individuals and 24% from never-symptomatic individuals.
The findings complement those of an earlier CDC analysis, according to the authors.
The overall proportion of transmission from presymptomatic and never-symptomatic individuals is key to identifying mitigation measures that may be able to control SARS-CoV-2, the authors stated.
For example, they explain, if the infection reproduction number (R) in a particular setting is 2.0, a reduction in transmission of at least 50% is needed in order to reduce R to below 1.0. “Given that in some settings R is likely much greater than 2 and more than half of transmissions may come from individuals who are asymptomatic at the time of transmission, effective control must mitigate transmission risk from people without symptoms,” they wrote.
The authors acknowledge that the study applies a simplistic model to a complex and evolving phenomenon, and that the exact proportions of presymptomatic and never-symptomatic transmission and the incubation periods are not known. They also note symptoms and transmissions appear to vary across different population groups, with older individuals more likely than younger persons to experience symptoms, according to previous studies.
“Assume that everyone is potentially infected”
Other experts agree that expanded testing of asymptomatic individuals is important. “Screening for fever and isolation of symptomatic individuals is a common-sense approach to help prevent spread, but these measures are by no means adequate since it’s been clearly documented that individuals who are either asymptomatic or presymptomatic can still spread the virus,” said Brett Williams, MD, an infectious disease specialist and assistant professor of medicine at Rush University in Chicago.
“As we saw with the White House Rose Garden superspreader outbreak, testing does not reliably exclude infection either because the tested individual has not yet become positive or the test is falsely negative,” Dr. Williams, who was not involved in the CDC study, said in an interview. He further noted that when prevalence is as high as it currently is in the United States, the rate of false negatives will be high because a large proportion of those screened will be unknowingly infected.
At his center, all visitors and staff are screened with a temperature probe on entry, and since the earliest days of the pandemic, universal masking has been required. “Nationally there have been many instances of hospital break room outbreaks because of staff eating lunch together, and these outbreaks also demonstrate the incompleteness of symptomatic isolation,” Dr. Williams said.
For his part, virologist Frank Esper, MD, a pediatric infectious disease specialist at the Cleveland Clinic, said that while it’s been understood for some time that many infected people will not exhibit symptoms, “the question that remains is just how infectious are they?”
Dr. Esper’s takeaway from the modeling study is not so much that we need more screening of possibly exposed but asymptomatic people, but rather testing symptomatic people and tracing their contacts is not enough.
“We need to continue to assume that everyone is potentially infected whether they know it or not. And even though we have ramped up our testing to a much greater capacity than in the first wave, we need to continue to wear masks and socially distance because just identifying people who are sick and isolating or quarantining them is not going to be enough to contain the pandemic.”
And although assumption-based modeling is helpful, it cannot tell us “how many asymptomatic people are actually infected,” said Dr. Esper, who was not involved in the CDC study.
Dr. Esper also pointed out that the study estimates are based on data from early Chinese studies, but the virus has since changed. The new, more transmissible strain in the United States and elsewhere may involve not only more infections but also a longer presymptomatic stage. “So the CDC study may actually undershoot asymptomatic infections,” he said.
He also agreed with the authors that when it comes to infection, not all humans are equal. “Older people tend to be more symptomatic and become symptomatic more quickly so the asymptomatic rate is not the same across board from young people age 20 to older people.”
The bottom line, said David. A. Hirschwerk, MD, an infectious disease specialist at Northwell Health in Manhasset, N.Y., is that these data support the maintenance of protective measures we’ve been taking over the past months. “They support the concept that asymptomatic people are a significant source of transmission and that we need to adhere to mask wearing and social distancing, particularly indoors,” Dr. Hirschwerk, who was not involved in the analysis, said in an interview. “More testing would be better but it has to be fast and it has to be efficient, and there are a lot of challenges to overcome.”
The study was done as part of the CDC’s coronavirus disease 2019 response and was supported solely by federal base and response funding. The authors and commentators have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Anaphylaxis cases after COVID-19 vaccine rising but still rare: CDC
Health care providers should be ready to treat rare cases of anaphylaxis following administration of COVID-19 vaccines, federal medical officials have urged. The officials also stressed the importance of continuing vaccinations, despite reports of the rare side effect.
There have been 29 cases of anaphylaxis to date following administration of a COVID-19 vaccine, officials from the Centers for Disease Control and Prevention said in a call with reporters on Jan. 6.
The severe allergic reaction, which appears to be rare, can happen with either the Pfizer-BioNTech vaccine or the rival Moderna product. The Food and Drug Administration granted emergency use authorizations for these two vaccines in December.
Even with the cases seen to date, the COVID-19 vaccines remain a “good value proposition,” Nancy Messonnier, MD, director of the CDC’s National Center for Immunization, said in the call.
There have been about 11.1 cases of anaphylaxis per million doses with the Pfizer-BioNTech COVID-19 vaccine, which is higher than the estimated 1.3 cases per million doses with influenza vaccines, she said. But the low risk of anaphylaxis must be balanced against the threat of COVID-19, which currently claims about 2,000 lives a day in the United States, she said. In addition, many people are reporting long-term complications with COVID-19 even if they recover.
Kept in context, the data on anaphylaxis should not scare people away from getting a COVID-19 vaccine, she added.
“Their risk from COVID and poor outcomes is still more than the risk of a severe outcome from the vaccine,” Dr. Messonnier said. “And fortunately, we know how to treat anaphylaxis.”
Dr. Messonnier urged health care workers administering COVID-19 vaccines to be prepared.
“Anybody administering vaccines needs not just to have the EpiPen available, but frankly, to know how to use it,” Dr. Messonnier said.
MMWR details
The CDC on Jan. 6 also provided an update on anaphylaxis in Morbidity and Mortality Weekly Report (MMWR).
The information included in the report was based on cases reported with the Pfizer-BioNTech vaccine – the first to get emergency use authorization from the FDA. On the call with reporters, CDC officials confirmed there have been additional reports since then and anaphylaxis has been reported with both the Pfizer-BioNTech and Moderna vaccines. CDC officials said they could not give a breakdown of how many cases were linked to each of these products at this time.
Between Dec. 14 and 23, 2020, monitoring by the Vaccine Adverse Event Reporting System detected 21 cases of anaphylaxis after administration of a reported 1,893,360 first doses of the Pfizer-BioNTech COVID-19 vaccine. Most reactions – 71% – occurred within 15 minutes of vaccination.
A version of this article first appeared on Medscape.com.
Health care providers should be ready to treat rare cases of anaphylaxis following administration of COVID-19 vaccines, federal medical officials have urged. The officials also stressed the importance of continuing vaccinations, despite reports of the rare side effect.
There have been 29 cases of anaphylaxis to date following administration of a COVID-19 vaccine, officials from the Centers for Disease Control and Prevention said in a call with reporters on Jan. 6.
The severe allergic reaction, which appears to be rare, can happen with either the Pfizer-BioNTech vaccine or the rival Moderna product. The Food and Drug Administration granted emergency use authorizations for these two vaccines in December.
Even with the cases seen to date, the COVID-19 vaccines remain a “good value proposition,” Nancy Messonnier, MD, director of the CDC’s National Center for Immunization, said in the call.
There have been about 11.1 cases of anaphylaxis per million doses with the Pfizer-BioNTech COVID-19 vaccine, which is higher than the estimated 1.3 cases per million doses with influenza vaccines, she said. But the low risk of anaphylaxis must be balanced against the threat of COVID-19, which currently claims about 2,000 lives a day in the United States, she said. In addition, many people are reporting long-term complications with COVID-19 even if they recover.
Kept in context, the data on anaphylaxis should not scare people away from getting a COVID-19 vaccine, she added.
“Their risk from COVID and poor outcomes is still more than the risk of a severe outcome from the vaccine,” Dr. Messonnier said. “And fortunately, we know how to treat anaphylaxis.”
Dr. Messonnier urged health care workers administering COVID-19 vaccines to be prepared.
“Anybody administering vaccines needs not just to have the EpiPen available, but frankly, to know how to use it,” Dr. Messonnier said.
MMWR details
The CDC on Jan. 6 also provided an update on anaphylaxis in Morbidity and Mortality Weekly Report (MMWR).
The information included in the report was based on cases reported with the Pfizer-BioNTech vaccine – the first to get emergency use authorization from the FDA. On the call with reporters, CDC officials confirmed there have been additional reports since then and anaphylaxis has been reported with both the Pfizer-BioNTech and Moderna vaccines. CDC officials said they could not give a breakdown of how many cases were linked to each of these products at this time.
Between Dec. 14 and 23, 2020, monitoring by the Vaccine Adverse Event Reporting System detected 21 cases of anaphylaxis after administration of a reported 1,893,360 first doses of the Pfizer-BioNTech COVID-19 vaccine. Most reactions – 71% – occurred within 15 minutes of vaccination.
A version of this article first appeared on Medscape.com.
Health care providers should be ready to treat rare cases of anaphylaxis following administration of COVID-19 vaccines, federal medical officials have urged. The officials also stressed the importance of continuing vaccinations, despite reports of the rare side effect.
There have been 29 cases of anaphylaxis to date following administration of a COVID-19 vaccine, officials from the Centers for Disease Control and Prevention said in a call with reporters on Jan. 6.
The severe allergic reaction, which appears to be rare, can happen with either the Pfizer-BioNTech vaccine or the rival Moderna product. The Food and Drug Administration granted emergency use authorizations for these two vaccines in December.
Even with the cases seen to date, the COVID-19 vaccines remain a “good value proposition,” Nancy Messonnier, MD, director of the CDC’s National Center for Immunization, said in the call.
There have been about 11.1 cases of anaphylaxis per million doses with the Pfizer-BioNTech COVID-19 vaccine, which is higher than the estimated 1.3 cases per million doses with influenza vaccines, she said. But the low risk of anaphylaxis must be balanced against the threat of COVID-19, which currently claims about 2,000 lives a day in the United States, she said. In addition, many people are reporting long-term complications with COVID-19 even if they recover.
Kept in context, the data on anaphylaxis should not scare people away from getting a COVID-19 vaccine, she added.
“Their risk from COVID and poor outcomes is still more than the risk of a severe outcome from the vaccine,” Dr. Messonnier said. “And fortunately, we know how to treat anaphylaxis.”
Dr. Messonnier urged health care workers administering COVID-19 vaccines to be prepared.
“Anybody administering vaccines needs not just to have the EpiPen available, but frankly, to know how to use it,” Dr. Messonnier said.
MMWR details
The CDC on Jan. 6 also provided an update on anaphylaxis in Morbidity and Mortality Weekly Report (MMWR).
The information included in the report was based on cases reported with the Pfizer-BioNTech vaccine – the first to get emergency use authorization from the FDA. On the call with reporters, CDC officials confirmed there have been additional reports since then and anaphylaxis has been reported with both the Pfizer-BioNTech and Moderna vaccines. CDC officials said they could not give a breakdown of how many cases were linked to each of these products at this time.
Between Dec. 14 and 23, 2020, monitoring by the Vaccine Adverse Event Reporting System detected 21 cases of anaphylaxis after administration of a reported 1,893,360 first doses of the Pfizer-BioNTech COVID-19 vaccine. Most reactions – 71% – occurred within 15 minutes of vaccination.
A version of this article first appeared on Medscape.com.
IDSA panel updates guidelines on COVID molecular diagnostic tests
Saliva spit tests stack up well against the gold standard for molecular COVID-19 tests – the back-of-the-nose deep swab – without the discomfort and induced coughing or sneezing of the test taker, updated guidelines indicate.
In a press briefing on Jan. 6, the Infectious Diseases Society of America explained the findings of an expert panel that reviewed the literature since the IDSA released its first guidelines in May.
The panel found that saliva tests were especially effective if the test included instructions to cough or clear the throat before spitting into the tube, said panel chair Kimberly E. Hanson, MD, MHS, of University of Utah Health, Salt Lake City.
Throat swab alone less effective
Using a throat swab alone was less effective and missed more cases than the other methods, she said.
The IDSA has updated its recommendation: A saliva test or swabs from either the middle or front of the nose front are preferred to a throat swab alone.
A combination of saliva and swabs from the front and middle of the nose and throat together “looked pretty much equivalent” to the gold-standard deep swab, the panel found.
She acknowledged, however, that multiple swabs exacerbate already challenging supply issues.
Saliva samples do come with challenges, Dr. Hanson noted. A laboratory must validate that its systems can handle the stickier material. And asking a patient to cough necessitates more personal protective equipment for the health care professional.
Each center will have to tailor the specimen type it chooses, based on what resources it has available and the setting – whether in a hospital or a drive-through operation, for instance, she said.
Rapid testing vs. standard
Panel member Angela M. Caliendo, MD, PhD, of Brown University, Providence, R.I., said the panel preferred rapid polymerase chain reaction tests and standard, laboratory-based PCR tests over a rapid isothermal test.
The panel defined rapid tests as those for which results are available within an hour after a test provider has the specimen in hand. They excluded home tests for this category.
The only rapid isothermal test that had enough data on which to issue a recommendation was the ID NOW test (Abbott Labs), she noted.
Rapid PCR tests performed just as well as the standard laboratory-based tests, she said, with a high sensitivity of “97% on average and a very high specificity.”
But the rapid isothermal test had an average sensitivity of only about 80%, compared with the lab-based PCR test, Dr. Caliendo said, yielding a substantial number of false-negative results.
Testing centers will have to weigh the considerable advantages of having results in 15 minutes with a rapid isothermal test and being able to educate positive patients about immediate isolation against the potential for false negatives, which could send positive patients home thinking they don’t have the virus – and thus potentially spreading the disease.
And if a clinician gets a negative result with the rapid isothermal test, but has a strong suspicion the person has COVID or lives in an area with high prevalence, a backup test with a rapid PCR or laboratory-based test should be administered.
“You will miss a certain percentage of people using this rapid isothermal test,” she said.
However, Dr. Caliendo said, if the only available option is the isothermal test, “you should definitely use it because it’s certainly better than not testing at all.”
On a positive note, she said, all the varieties of tests have high specificity, so “you’re not going to see a lot of false-positive results.”
The guidelines back in May didn’t make recommendations on rapid tests, she said, because there weren’t enough data in the literature.
Dr. Caliendo noted that most of the available data were for symptomatic patients, but there are some data that show the amount of virus in the respiratory tract is similar for people with and without symptoms. The panel, therefore, expects that the performance of the various assays would be similar whether or not a person had symptoms.
Testing the immunocompromised
Dr. Hanson said the original recommendation in May was to do molecular testing for asymptomatic people who were awaiting a transplant or were waiting to start immunosuppressive therapy for cancer or an autoimmune disease. Now the current guidelines “make no recommendation for or against screening” in those cases.
Dr. Hanson added that the panel feels that patients awaiting bone marrow and solid organ transplants should have the testing because of the high risks that will result if patients have contracted the virus.
But for those with cancer or an autoimmune disease, the panel decided to leave it up to each physician to assess individual risk and determine whether the patient should be tested.
Home testing
The IDSA guidelines didn’t weigh in on home testing because the products are so new and studies so far have included fewer than 200 patients. But Dr. Caliendo said they clearly perform better earlier in the disease phase – the first 5-7 days – when the amount of the virus is higher.
Dr. Hanson and Dr. Caliendo also fielded a question about what the new virus variant, first discovered in the United Kingdom and now spreading to other countries (including the United States) means for diagnostic testing.
“So far we think with the majority of tests that are [emergency use] authorized, it doesn’t look like this new variant should really affect test performance,” Dr. Hanson said.
The variant has differences in the spike gene, and many of the current tests detect and identify SARS-CoV-2 without the spike gene so they wouldn’t be affected, she added.
Dr. Caliendo agreed: “I think the vast majority of our tests should be in good shape.”
Dr. Hanson and Dr. Caliendo disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Saliva spit tests stack up well against the gold standard for molecular COVID-19 tests – the back-of-the-nose deep swab – without the discomfort and induced coughing or sneezing of the test taker, updated guidelines indicate.
In a press briefing on Jan. 6, the Infectious Diseases Society of America explained the findings of an expert panel that reviewed the literature since the IDSA released its first guidelines in May.
The panel found that saliva tests were especially effective if the test included instructions to cough or clear the throat before spitting into the tube, said panel chair Kimberly E. Hanson, MD, MHS, of University of Utah Health, Salt Lake City.
Throat swab alone less effective
Using a throat swab alone was less effective and missed more cases than the other methods, she said.
The IDSA has updated its recommendation: A saliva test or swabs from either the middle or front of the nose front are preferred to a throat swab alone.
A combination of saliva and swabs from the front and middle of the nose and throat together “looked pretty much equivalent” to the gold-standard deep swab, the panel found.
She acknowledged, however, that multiple swabs exacerbate already challenging supply issues.
Saliva samples do come with challenges, Dr. Hanson noted. A laboratory must validate that its systems can handle the stickier material. And asking a patient to cough necessitates more personal protective equipment for the health care professional.
Each center will have to tailor the specimen type it chooses, based on what resources it has available and the setting – whether in a hospital or a drive-through operation, for instance, she said.
Rapid testing vs. standard
Panel member Angela M. Caliendo, MD, PhD, of Brown University, Providence, R.I., said the panel preferred rapid polymerase chain reaction tests and standard, laboratory-based PCR tests over a rapid isothermal test.
The panel defined rapid tests as those for which results are available within an hour after a test provider has the specimen in hand. They excluded home tests for this category.
The only rapid isothermal test that had enough data on which to issue a recommendation was the ID NOW test (Abbott Labs), she noted.
Rapid PCR tests performed just as well as the standard laboratory-based tests, she said, with a high sensitivity of “97% on average and a very high specificity.”
But the rapid isothermal test had an average sensitivity of only about 80%, compared with the lab-based PCR test, Dr. Caliendo said, yielding a substantial number of false-negative results.
Testing centers will have to weigh the considerable advantages of having results in 15 minutes with a rapid isothermal test and being able to educate positive patients about immediate isolation against the potential for false negatives, which could send positive patients home thinking they don’t have the virus – and thus potentially spreading the disease.
And if a clinician gets a negative result with the rapid isothermal test, but has a strong suspicion the person has COVID or lives in an area with high prevalence, a backup test with a rapid PCR or laboratory-based test should be administered.
“You will miss a certain percentage of people using this rapid isothermal test,” she said.
However, Dr. Caliendo said, if the only available option is the isothermal test, “you should definitely use it because it’s certainly better than not testing at all.”
On a positive note, she said, all the varieties of tests have high specificity, so “you’re not going to see a lot of false-positive results.”
The guidelines back in May didn’t make recommendations on rapid tests, she said, because there weren’t enough data in the literature.
Dr. Caliendo noted that most of the available data were for symptomatic patients, but there are some data that show the amount of virus in the respiratory tract is similar for people with and without symptoms. The panel, therefore, expects that the performance of the various assays would be similar whether or not a person had symptoms.
Testing the immunocompromised
Dr. Hanson said the original recommendation in May was to do molecular testing for asymptomatic people who were awaiting a transplant or were waiting to start immunosuppressive therapy for cancer or an autoimmune disease. Now the current guidelines “make no recommendation for or against screening” in those cases.
Dr. Hanson added that the panel feels that patients awaiting bone marrow and solid organ transplants should have the testing because of the high risks that will result if patients have contracted the virus.
But for those with cancer or an autoimmune disease, the panel decided to leave it up to each physician to assess individual risk and determine whether the patient should be tested.
Home testing
The IDSA guidelines didn’t weigh in on home testing because the products are so new and studies so far have included fewer than 200 patients. But Dr. Caliendo said they clearly perform better earlier in the disease phase – the first 5-7 days – when the amount of the virus is higher.
Dr. Hanson and Dr. Caliendo also fielded a question about what the new virus variant, first discovered in the United Kingdom and now spreading to other countries (including the United States) means for diagnostic testing.
“So far we think with the majority of tests that are [emergency use] authorized, it doesn’t look like this new variant should really affect test performance,” Dr. Hanson said.
The variant has differences in the spike gene, and many of the current tests detect and identify SARS-CoV-2 without the spike gene so they wouldn’t be affected, she added.
Dr. Caliendo agreed: “I think the vast majority of our tests should be in good shape.”
Dr. Hanson and Dr. Caliendo disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Saliva spit tests stack up well against the gold standard for molecular COVID-19 tests – the back-of-the-nose deep swab – without the discomfort and induced coughing or sneezing of the test taker, updated guidelines indicate.
In a press briefing on Jan. 6, the Infectious Diseases Society of America explained the findings of an expert panel that reviewed the literature since the IDSA released its first guidelines in May.
The panel found that saliva tests were especially effective if the test included instructions to cough or clear the throat before spitting into the tube, said panel chair Kimberly E. Hanson, MD, MHS, of University of Utah Health, Salt Lake City.
Throat swab alone less effective
Using a throat swab alone was less effective and missed more cases than the other methods, she said.
The IDSA has updated its recommendation: A saliva test or swabs from either the middle or front of the nose front are preferred to a throat swab alone.
A combination of saliva and swabs from the front and middle of the nose and throat together “looked pretty much equivalent” to the gold-standard deep swab, the panel found.
She acknowledged, however, that multiple swabs exacerbate already challenging supply issues.
Saliva samples do come with challenges, Dr. Hanson noted. A laboratory must validate that its systems can handle the stickier material. And asking a patient to cough necessitates more personal protective equipment for the health care professional.
Each center will have to tailor the specimen type it chooses, based on what resources it has available and the setting – whether in a hospital or a drive-through operation, for instance, she said.
Rapid testing vs. standard
Panel member Angela M. Caliendo, MD, PhD, of Brown University, Providence, R.I., said the panel preferred rapid polymerase chain reaction tests and standard, laboratory-based PCR tests over a rapid isothermal test.
The panel defined rapid tests as those for which results are available within an hour after a test provider has the specimen in hand. They excluded home tests for this category.
The only rapid isothermal test that had enough data on which to issue a recommendation was the ID NOW test (Abbott Labs), she noted.
Rapid PCR tests performed just as well as the standard laboratory-based tests, she said, with a high sensitivity of “97% on average and a very high specificity.”
But the rapid isothermal test had an average sensitivity of only about 80%, compared with the lab-based PCR test, Dr. Caliendo said, yielding a substantial number of false-negative results.
Testing centers will have to weigh the considerable advantages of having results in 15 minutes with a rapid isothermal test and being able to educate positive patients about immediate isolation against the potential for false negatives, which could send positive patients home thinking they don’t have the virus – and thus potentially spreading the disease.
And if a clinician gets a negative result with the rapid isothermal test, but has a strong suspicion the person has COVID or lives in an area with high prevalence, a backup test with a rapid PCR or laboratory-based test should be administered.
“You will miss a certain percentage of people using this rapid isothermal test,” she said.
However, Dr. Caliendo said, if the only available option is the isothermal test, “you should definitely use it because it’s certainly better than not testing at all.”
On a positive note, she said, all the varieties of tests have high specificity, so “you’re not going to see a lot of false-positive results.”
The guidelines back in May didn’t make recommendations on rapid tests, she said, because there weren’t enough data in the literature.
Dr. Caliendo noted that most of the available data were for symptomatic patients, but there are some data that show the amount of virus in the respiratory tract is similar for people with and without symptoms. The panel, therefore, expects that the performance of the various assays would be similar whether or not a person had symptoms.
Testing the immunocompromised
Dr. Hanson said the original recommendation in May was to do molecular testing for asymptomatic people who were awaiting a transplant or were waiting to start immunosuppressive therapy for cancer or an autoimmune disease. Now the current guidelines “make no recommendation for or against screening” in those cases.
Dr. Hanson added that the panel feels that patients awaiting bone marrow and solid organ transplants should have the testing because of the high risks that will result if patients have contracted the virus.
But for those with cancer or an autoimmune disease, the panel decided to leave it up to each physician to assess individual risk and determine whether the patient should be tested.
Home testing
The IDSA guidelines didn’t weigh in on home testing because the products are so new and studies so far have included fewer than 200 patients. But Dr. Caliendo said they clearly perform better earlier in the disease phase – the first 5-7 days – when the amount of the virus is higher.
Dr. Hanson and Dr. Caliendo also fielded a question about what the new virus variant, first discovered in the United Kingdom and now spreading to other countries (including the United States) means for diagnostic testing.
“So far we think with the majority of tests that are [emergency use] authorized, it doesn’t look like this new variant should really affect test performance,” Dr. Hanson said.
The variant has differences in the spike gene, and many of the current tests detect and identify SARS-CoV-2 without the spike gene so they wouldn’t be affected, she added.
Dr. Caliendo agreed: “I think the vast majority of our tests should be in good shape.”
Dr. Hanson and Dr. Caliendo disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Early use of high-titer plasma may prevent severe COVID-19
Administering convalescent plasma that has high levels of antibodies against SARS-CoV-2 within the first 3 days of symptoms was associated with significantly lower chances of progression to severe COVID-19, new evidence demonstrates.
In a trial of 160 older adults with COVID-19, half of whom were randomly assigned to receive plasma and half to receive placebo infusion, treatment with high-titer plasma lowered the relative risk for severe disease by 48% in an intent-to-treat analysis.
“We now have evidence, in the context of a small but well-designed study, that convalescent plasma with high titers of antibody against SARS-CoV-2 administered in the first 3 days of mild symptoms to infected elderly reduces progression of illness and the rate of severe presentations,” senior author Fernando Polack, MD, said in an interview.
“Not any plasma, not any time,” added Dr. Polack, an infectious disease specialist and scientific director at Fundacion INFANT and professor of pediatrics at the University of Buenos Aires. The key, he said, is to select plasma in the upper 28th percentile of IgG antibody concentrations and to administer therapy prior to disease progression.
The study was published online Jan. 6 in The New England Journal of Medicine.
“It’s a very good study and approaches a different population from the PlasmAr study,” Ventura Simonovich, MD, chief of the clinical pharmacology section, Medical Clinic Service, Hospital Italiano de Buenos Aires, said in an interview. “This is the first published randomized controlled trial that shows real benefit in this [older adult] population, the most vulnerable in this disease,” he said.
Dr. Simonovich, who was not affiliated with the current study, was lead author of the PlasmAr trial, which was published in The New England Journal of Medicine Nov. 24, 2020. In that trial, the researchers evaluated adults aged 18 years and older and found no significant benefit with convalescent plasma treatment over placebo for patients with COVID-19 and severe pneumonia.
“We know antibodies work best when given early and in high dose. This is one of the rare reports that validates it in the outpatient setting,” David Sullivan, MD, professor of molecular biology and immunology at Johns Hopkins Bloomberg School of Public Health, Baltimore, said in an interview when asked to comment.
Dr. Sullivan pointed out that most previous studies on convalescent plasma focused on patients with COVID-19 who had severe cases late in the disease course.
Regarding the current study, he said, “The striking thing is treating people within 3 days of illness.”
A more cautious interpretation may be warranted, one expert said. “The study demonstrates the benefit of early intervention. There was a dose-dependent effect, with higher titers providing a greater benefit,” Manoj Menon, MD, MPH, a hematologist and oncologist at the University of Washington, Seattle, said in an interview.
“Taken together, the findings have biologic plausibility and produce more data on the role of convalescent plasma to a relevant age cohort,” he added.
However, Dr. Menon said: “Given the limited sample size, I do not think this study, although well conducted, definitively addresses the role of convalescent plasma for COVID-19. But it does merit additional study.”
A search for clear answers
Treatments that target the early stages of COVID-19 “remain elusive. Few strategies provide benefit, several have failed, and others are being evaluated,” the researchers noted. “In hospitalized patients with COVID-19, the infusion of convalescent plasma against SARS-CoV-2 late in the course of illness has not shown clear benefits and, consequently, the most appropriate antibody concentrations for effective treatment are unclear.”
To learn more, Dr. Polack and colleagues included patients with PCR-confirmed COVID-19 who were aged 75 years or older, regardless of comorbidities. They also included patients aged 65-74 years who had at least one underlying condition. Participants were enrolled at clinical sites or geriatric units in Argentina. The mean age was 77 years, and 62% were women.
In an intent-to-treat analysis, the primary outcome – severe respiratory disease – occurred in 16% of the plasma recipients, vs. 31% of the group that received placebo. The relative risk was 0.52 (95% confidence interval, 0.29-0.94; P = .03).
The number needed to treat to avoid a severe respiratory disease episode was 7 (95% CI, 4-50).
Life-threatening respiratory disease, a secondary outcome, occurred in four people in the plasma group, compared with 10 in the placebo group. Two patients in the treatment group and four patients in the placebo group died.
The researchers also ran a modified intent-to-treat analysis that excluded six participants who experienced severe respiratory disease prior to receiving plasma or placebo. In this analysis, efficacy of plasma therapy increased to 60%.
“Again, this finding suggests that early intervention is critical for efficacy,” the investigators noted.
The investigators, who are based in Argentina, defined their primary endpoint as a respiratory rate of 30 or more breaths per minute and/or an oxygen saturation of less than 93% while breathing ambient air.
Dr. Sullivan pointed out that this is equivalent to the threshold commonly used for hospitalizing people with COVID-19 in the United States. “So it’s equivalent to avoiding hospitalizations. The take-home is high-titer plasma prevents respiratory distress, which equals hospitalization for us.”
Dr. Sullivan is conducting similar research in the United States regarding the use of plasma for treatment or prevention. He and colleagues are evaluating adults aged 18-90 years, “not just the ones at highest risk for going to the hospital,” he said. Enrollment is ongoing.
An inexpensive therapy with global potential?
“Although our trial lacked the statistical power to discern long-term outcomes, the convalescent plasma group appeared to have better outcomes than the placebo group with respect to all secondary endpoints,” the researchers wrote. “Our findings underscore the need to return to the classic approach of treating acute viral infections early, and they define IgG targets that facilitate donor selection.”
Dr. Polack said, “This is an inexpensive solution to mitigate the burden of severe illness in the population most vulnerable to the virus: the elderly. And it has the attraction of being applicable not only in industrialized countries but in many areas of the developing world.”
Convalescent plasma “is a potentially inexpensive alternative to monoclonal antibodies,” the researchers added. Furthermore, “early infusions of convalescent plasma can provide a bridge to recovery for at-risk patients until vaccines become widely available.”
Dr. Polack said the study findings did not surprise him. “We always thought that, as it has been the case in the past with many therapeutic strategies against respiratory and other viral infections, the earlier you treat, the better.
“We just hoped that within 72 hours of symptoms we would be treating early enough – remember that there is a 4- to 5-day incubation period that the virus leverages before the first symptom – and with enough antibody,” he added.
“We are glad it worked,” he said.
The study was supported by the Bill and Melinda Gates Foundation and by the Fundación INFANT Pandemic Fund. Dr. Polack, Dr. Simonovich, and Dr. Sullivan have disclosed various financial relationships industry.
A version of this article first appeared on Medscape.com.
Administering convalescent plasma that has high levels of antibodies against SARS-CoV-2 within the first 3 days of symptoms was associated with significantly lower chances of progression to severe COVID-19, new evidence demonstrates.
In a trial of 160 older adults with COVID-19, half of whom were randomly assigned to receive plasma and half to receive placebo infusion, treatment with high-titer plasma lowered the relative risk for severe disease by 48% in an intent-to-treat analysis.
“We now have evidence, in the context of a small but well-designed study, that convalescent plasma with high titers of antibody against SARS-CoV-2 administered in the first 3 days of mild symptoms to infected elderly reduces progression of illness and the rate of severe presentations,” senior author Fernando Polack, MD, said in an interview.
“Not any plasma, not any time,” added Dr. Polack, an infectious disease specialist and scientific director at Fundacion INFANT and professor of pediatrics at the University of Buenos Aires. The key, he said, is to select plasma in the upper 28th percentile of IgG antibody concentrations and to administer therapy prior to disease progression.
The study was published online Jan. 6 in The New England Journal of Medicine.
“It’s a very good study and approaches a different population from the PlasmAr study,” Ventura Simonovich, MD, chief of the clinical pharmacology section, Medical Clinic Service, Hospital Italiano de Buenos Aires, said in an interview. “This is the first published randomized controlled trial that shows real benefit in this [older adult] population, the most vulnerable in this disease,” he said.
Dr. Simonovich, who was not affiliated with the current study, was lead author of the PlasmAr trial, which was published in The New England Journal of Medicine Nov. 24, 2020. In that trial, the researchers evaluated adults aged 18 years and older and found no significant benefit with convalescent plasma treatment over placebo for patients with COVID-19 and severe pneumonia.
“We know antibodies work best when given early and in high dose. This is one of the rare reports that validates it in the outpatient setting,” David Sullivan, MD, professor of molecular biology and immunology at Johns Hopkins Bloomberg School of Public Health, Baltimore, said in an interview when asked to comment.
Dr. Sullivan pointed out that most previous studies on convalescent plasma focused on patients with COVID-19 who had severe cases late in the disease course.
Regarding the current study, he said, “The striking thing is treating people within 3 days of illness.”
A more cautious interpretation may be warranted, one expert said. “The study demonstrates the benefit of early intervention. There was a dose-dependent effect, with higher titers providing a greater benefit,” Manoj Menon, MD, MPH, a hematologist and oncologist at the University of Washington, Seattle, said in an interview.
“Taken together, the findings have biologic plausibility and produce more data on the role of convalescent plasma to a relevant age cohort,” he added.
However, Dr. Menon said: “Given the limited sample size, I do not think this study, although well conducted, definitively addresses the role of convalescent plasma for COVID-19. But it does merit additional study.”
A search for clear answers
Treatments that target the early stages of COVID-19 “remain elusive. Few strategies provide benefit, several have failed, and others are being evaluated,” the researchers noted. “In hospitalized patients with COVID-19, the infusion of convalescent plasma against SARS-CoV-2 late in the course of illness has not shown clear benefits and, consequently, the most appropriate antibody concentrations for effective treatment are unclear.”
To learn more, Dr. Polack and colleagues included patients with PCR-confirmed COVID-19 who were aged 75 years or older, regardless of comorbidities. They also included patients aged 65-74 years who had at least one underlying condition. Participants were enrolled at clinical sites or geriatric units in Argentina. The mean age was 77 years, and 62% were women.
In an intent-to-treat analysis, the primary outcome – severe respiratory disease – occurred in 16% of the plasma recipients, vs. 31% of the group that received placebo. The relative risk was 0.52 (95% confidence interval, 0.29-0.94; P = .03).
The number needed to treat to avoid a severe respiratory disease episode was 7 (95% CI, 4-50).
Life-threatening respiratory disease, a secondary outcome, occurred in four people in the plasma group, compared with 10 in the placebo group. Two patients in the treatment group and four patients in the placebo group died.
The researchers also ran a modified intent-to-treat analysis that excluded six participants who experienced severe respiratory disease prior to receiving plasma or placebo. In this analysis, efficacy of plasma therapy increased to 60%.
“Again, this finding suggests that early intervention is critical for efficacy,” the investigators noted.
The investigators, who are based in Argentina, defined their primary endpoint as a respiratory rate of 30 or more breaths per minute and/or an oxygen saturation of less than 93% while breathing ambient air.
Dr. Sullivan pointed out that this is equivalent to the threshold commonly used for hospitalizing people with COVID-19 in the United States. “So it’s equivalent to avoiding hospitalizations. The take-home is high-titer plasma prevents respiratory distress, which equals hospitalization for us.”
Dr. Sullivan is conducting similar research in the United States regarding the use of plasma for treatment or prevention. He and colleagues are evaluating adults aged 18-90 years, “not just the ones at highest risk for going to the hospital,” he said. Enrollment is ongoing.
An inexpensive therapy with global potential?
“Although our trial lacked the statistical power to discern long-term outcomes, the convalescent plasma group appeared to have better outcomes than the placebo group with respect to all secondary endpoints,” the researchers wrote. “Our findings underscore the need to return to the classic approach of treating acute viral infections early, and they define IgG targets that facilitate donor selection.”
Dr. Polack said, “This is an inexpensive solution to mitigate the burden of severe illness in the population most vulnerable to the virus: the elderly. And it has the attraction of being applicable not only in industrialized countries but in many areas of the developing world.”
Convalescent plasma “is a potentially inexpensive alternative to monoclonal antibodies,” the researchers added. Furthermore, “early infusions of convalescent plasma can provide a bridge to recovery for at-risk patients until vaccines become widely available.”
Dr. Polack said the study findings did not surprise him. “We always thought that, as it has been the case in the past with many therapeutic strategies against respiratory and other viral infections, the earlier you treat, the better.
“We just hoped that within 72 hours of symptoms we would be treating early enough – remember that there is a 4- to 5-day incubation period that the virus leverages before the first symptom – and with enough antibody,” he added.
“We are glad it worked,” he said.
The study was supported by the Bill and Melinda Gates Foundation and by the Fundación INFANT Pandemic Fund. Dr. Polack, Dr. Simonovich, and Dr. Sullivan have disclosed various financial relationships industry.
A version of this article first appeared on Medscape.com.
Administering convalescent plasma that has high levels of antibodies against SARS-CoV-2 within the first 3 days of symptoms was associated with significantly lower chances of progression to severe COVID-19, new evidence demonstrates.
In a trial of 160 older adults with COVID-19, half of whom were randomly assigned to receive plasma and half to receive placebo infusion, treatment with high-titer plasma lowered the relative risk for severe disease by 48% in an intent-to-treat analysis.
“We now have evidence, in the context of a small but well-designed study, that convalescent plasma with high titers of antibody against SARS-CoV-2 administered in the first 3 days of mild symptoms to infected elderly reduces progression of illness and the rate of severe presentations,” senior author Fernando Polack, MD, said in an interview.
“Not any plasma, not any time,” added Dr. Polack, an infectious disease specialist and scientific director at Fundacion INFANT and professor of pediatrics at the University of Buenos Aires. The key, he said, is to select plasma in the upper 28th percentile of IgG antibody concentrations and to administer therapy prior to disease progression.
The study was published online Jan. 6 in The New England Journal of Medicine.
“It’s a very good study and approaches a different population from the PlasmAr study,” Ventura Simonovich, MD, chief of the clinical pharmacology section, Medical Clinic Service, Hospital Italiano de Buenos Aires, said in an interview. “This is the first published randomized controlled trial that shows real benefit in this [older adult] population, the most vulnerable in this disease,” he said.
Dr. Simonovich, who was not affiliated with the current study, was lead author of the PlasmAr trial, which was published in The New England Journal of Medicine Nov. 24, 2020. In that trial, the researchers evaluated adults aged 18 years and older and found no significant benefit with convalescent plasma treatment over placebo for patients with COVID-19 and severe pneumonia.
“We know antibodies work best when given early and in high dose. This is one of the rare reports that validates it in the outpatient setting,” David Sullivan, MD, professor of molecular biology and immunology at Johns Hopkins Bloomberg School of Public Health, Baltimore, said in an interview when asked to comment.
Dr. Sullivan pointed out that most previous studies on convalescent plasma focused on patients with COVID-19 who had severe cases late in the disease course.
Regarding the current study, he said, “The striking thing is treating people within 3 days of illness.”
A more cautious interpretation may be warranted, one expert said. “The study demonstrates the benefit of early intervention. There was a dose-dependent effect, with higher titers providing a greater benefit,” Manoj Menon, MD, MPH, a hematologist and oncologist at the University of Washington, Seattle, said in an interview.
“Taken together, the findings have biologic plausibility and produce more data on the role of convalescent plasma to a relevant age cohort,” he added.
However, Dr. Menon said: “Given the limited sample size, I do not think this study, although well conducted, definitively addresses the role of convalescent plasma for COVID-19. But it does merit additional study.”
A search for clear answers
Treatments that target the early stages of COVID-19 “remain elusive. Few strategies provide benefit, several have failed, and others are being evaluated,” the researchers noted. “In hospitalized patients with COVID-19, the infusion of convalescent plasma against SARS-CoV-2 late in the course of illness has not shown clear benefits and, consequently, the most appropriate antibody concentrations for effective treatment are unclear.”
To learn more, Dr. Polack and colleagues included patients with PCR-confirmed COVID-19 who were aged 75 years or older, regardless of comorbidities. They also included patients aged 65-74 years who had at least one underlying condition. Participants were enrolled at clinical sites or geriatric units in Argentina. The mean age was 77 years, and 62% were women.
In an intent-to-treat analysis, the primary outcome – severe respiratory disease – occurred in 16% of the plasma recipients, vs. 31% of the group that received placebo. The relative risk was 0.52 (95% confidence interval, 0.29-0.94; P = .03).
The number needed to treat to avoid a severe respiratory disease episode was 7 (95% CI, 4-50).
Life-threatening respiratory disease, a secondary outcome, occurred in four people in the plasma group, compared with 10 in the placebo group. Two patients in the treatment group and four patients in the placebo group died.
The researchers also ran a modified intent-to-treat analysis that excluded six participants who experienced severe respiratory disease prior to receiving plasma or placebo. In this analysis, efficacy of plasma therapy increased to 60%.
“Again, this finding suggests that early intervention is critical for efficacy,” the investigators noted.
The investigators, who are based in Argentina, defined their primary endpoint as a respiratory rate of 30 or more breaths per minute and/or an oxygen saturation of less than 93% while breathing ambient air.
Dr. Sullivan pointed out that this is equivalent to the threshold commonly used for hospitalizing people with COVID-19 in the United States. “So it’s equivalent to avoiding hospitalizations. The take-home is high-titer plasma prevents respiratory distress, which equals hospitalization for us.”
Dr. Sullivan is conducting similar research in the United States regarding the use of plasma for treatment or prevention. He and colleagues are evaluating adults aged 18-90 years, “not just the ones at highest risk for going to the hospital,” he said. Enrollment is ongoing.
An inexpensive therapy with global potential?
“Although our trial lacked the statistical power to discern long-term outcomes, the convalescent plasma group appeared to have better outcomes than the placebo group with respect to all secondary endpoints,” the researchers wrote. “Our findings underscore the need to return to the classic approach of treating acute viral infections early, and they define IgG targets that facilitate donor selection.”
Dr. Polack said, “This is an inexpensive solution to mitigate the burden of severe illness in the population most vulnerable to the virus: the elderly. And it has the attraction of being applicable not only in industrialized countries but in many areas of the developing world.”
Convalescent plasma “is a potentially inexpensive alternative to monoclonal antibodies,” the researchers added. Furthermore, “early infusions of convalescent plasma can provide a bridge to recovery for at-risk patients until vaccines become widely available.”
Dr. Polack said the study findings did not surprise him. “We always thought that, as it has been the case in the past with many therapeutic strategies against respiratory and other viral infections, the earlier you treat, the better.
“We just hoped that within 72 hours of symptoms we would be treating early enough – remember that there is a 4- to 5-day incubation period that the virus leverages before the first symptom – and with enough antibody,” he added.
“We are glad it worked,” he said.
The study was supported by the Bill and Melinda Gates Foundation and by the Fundación INFANT Pandemic Fund. Dr. Polack, Dr. Simonovich, and Dr. Sullivan have disclosed various financial relationships industry.
A version of this article first appeared on Medscape.com.
Guidance issued on COVID vaccine use in patients with dermal fillers
outlining the potential risk and clinical relevance.
The association is not surprising, since other vaccines, including the influenza vaccine, have also been associated with inflammatory reactions in patients with dermal fillers. A warning about inflammatory events from these and other immunologic triggers should be part of routine informed consent, according to Sue Ellen Cox, MD, a coauthor of the guidance and the ASDS president-elect.
“Patients who have had dermal filler should not be discouraged from receiving the vaccine, and those who have received the vaccine should not be discouraged from receiving dermal filler,” Dr. Cox, who practices in Chapel Hill, N.C., said in an interview.
The only available data to assess the risk came from the trial of the Moderna vaccine. Of a total of 15,184 participants who received at least one dose of mRNA-1273, three developed facial or lip swelling that was presumably related to dermal filler. In the placebo group, there were no comparable inflammatory events.
“This is a very small number, but there is no reliable information about the number of patients in either group who had dermal filler, so we do not know the denominator,” Dr. Cox said.
In all three cases, the swelling at the site of dermal filler was observed within 2 days of the vaccination. None were considered a serious adverse event and all resolved. The filler had been administered 2 weeks prior to vaccination in one case, 6 months prior in a second, and time of administration was unknown in the third.
The resolution of the inflammatory reactions associated with the SARS-CoV-2 vaccine is similar to those related to dermal fillers following other immunologic triggers, which not only include other vaccines, but viral or bacterial illnesses and dental procedures. Typically, they are readily controlled with oral corticosteroids, but also typically resolve even in the absence of treatment, according to Dr. Cox.
“The good news is that these will go away,” Dr. Cox said.
The ASDS guidance is meant to alert clinicians and patients to the potential association between inflammatory events and SARS-CoV-2 vaccination in patients with dermal filler, but Dr. Cox said that it will ultimately have very little effect on her own practice. She already employs an informed consent that includes language warning about the potential risk of local reactions to immunological triggers that include vaccines. SARS-CoV-2 vaccination can now be added to examples of potential triggers, but it does not change the importance of informing patients of such triggers, Dr. Cox explained.
Asked if patients should be informed specifically about the association between dermal filler inflammatory reactions and SARS-CoV-2 vaccine, the current ASDS president and first author of the guidance, Mathew Avram, MD, JD, suggested that they should. Although he emphasized that the side effect is clearly rare, he believes it deserves attention.
“We wanted dermatologists and other physicians to be aware of the potential. We focused on the available data but specifically decided not to provide any treatment recommendations at this time,” he said in an interview.
As new data become available, the Soft-Tissue Fillers Guideline Task Force of the ASDS, which provided the guidance, will continue to monitor the relationship between SARS-CoV-2 vaccinations and dermal filler reactions, including other SARS-CoV-2 vaccines and the relative risks for hyaluronic acid and non–hyaluronic acid types of fillers.
“Our guidance was based only on the trial data, but there will soon be tens of millions of patients exposed to several different SARS-CoV-2 vaccines. We may learn things we do not know now, and we plan to communicate to our membership and others any new information as events unfold,” said Dr. Avram, who is director of dermatologic surgery, Massachusetts General Hospital, Boston,
Based on her own expertise in the field, Dr. Cox suggested that administration of SARS-CoV-2 vaccine and administration of dermal filler should be separated by at least 2 weeks regardless of which comes first. Her recommendation is not based on controlled data, but she considers this a prudent interval even if it has not been tested in a controlled study.
The full ASDS guidance is scheduled to appear in an upcoming issue of Dermatologic Surgery.
As new data become available, the Soft-tissue Fillers Guideline Task Force of the ASDS, which provided the guidance, will continue to monitor the relationship between SARS-CoV-2 vaccinations and dermal filler reactions, including other types of vaccines and the relative risks for hyaluronic acid and non–hyaluronic acid types of fillers.
This article was updated 1/7/21.
outlining the potential risk and clinical relevance.
The association is not surprising, since other vaccines, including the influenza vaccine, have also been associated with inflammatory reactions in patients with dermal fillers. A warning about inflammatory events from these and other immunologic triggers should be part of routine informed consent, according to Sue Ellen Cox, MD, a coauthor of the guidance and the ASDS president-elect.
“Patients who have had dermal filler should not be discouraged from receiving the vaccine, and those who have received the vaccine should not be discouraged from receiving dermal filler,” Dr. Cox, who practices in Chapel Hill, N.C., said in an interview.
The only available data to assess the risk came from the trial of the Moderna vaccine. Of a total of 15,184 participants who received at least one dose of mRNA-1273, three developed facial or lip swelling that was presumably related to dermal filler. In the placebo group, there were no comparable inflammatory events.
“This is a very small number, but there is no reliable information about the number of patients in either group who had dermal filler, so we do not know the denominator,” Dr. Cox said.
In all three cases, the swelling at the site of dermal filler was observed within 2 days of the vaccination. None were considered a serious adverse event and all resolved. The filler had been administered 2 weeks prior to vaccination in one case, 6 months prior in a second, and time of administration was unknown in the third.
The resolution of the inflammatory reactions associated with the SARS-CoV-2 vaccine is similar to those related to dermal fillers following other immunologic triggers, which not only include other vaccines, but viral or bacterial illnesses and dental procedures. Typically, they are readily controlled with oral corticosteroids, but also typically resolve even in the absence of treatment, according to Dr. Cox.
“The good news is that these will go away,” Dr. Cox said.
The ASDS guidance is meant to alert clinicians and patients to the potential association between inflammatory events and SARS-CoV-2 vaccination in patients with dermal filler, but Dr. Cox said that it will ultimately have very little effect on her own practice. She already employs an informed consent that includes language warning about the potential risk of local reactions to immunological triggers that include vaccines. SARS-CoV-2 vaccination can now be added to examples of potential triggers, but it does not change the importance of informing patients of such triggers, Dr. Cox explained.
Asked if patients should be informed specifically about the association between dermal filler inflammatory reactions and SARS-CoV-2 vaccine, the current ASDS president and first author of the guidance, Mathew Avram, MD, JD, suggested that they should. Although he emphasized that the side effect is clearly rare, he believes it deserves attention.
“We wanted dermatologists and other physicians to be aware of the potential. We focused on the available data but specifically decided not to provide any treatment recommendations at this time,” he said in an interview.
As new data become available, the Soft-Tissue Fillers Guideline Task Force of the ASDS, which provided the guidance, will continue to monitor the relationship between SARS-CoV-2 vaccinations and dermal filler reactions, including other SARS-CoV-2 vaccines and the relative risks for hyaluronic acid and non–hyaluronic acid types of fillers.
“Our guidance was based only on the trial data, but there will soon be tens of millions of patients exposed to several different SARS-CoV-2 vaccines. We may learn things we do not know now, and we plan to communicate to our membership and others any new information as events unfold,” said Dr. Avram, who is director of dermatologic surgery, Massachusetts General Hospital, Boston,
Based on her own expertise in the field, Dr. Cox suggested that administration of SARS-CoV-2 vaccine and administration of dermal filler should be separated by at least 2 weeks regardless of which comes first. Her recommendation is not based on controlled data, but she considers this a prudent interval even if it has not been tested in a controlled study.
The full ASDS guidance is scheduled to appear in an upcoming issue of Dermatologic Surgery.
As new data become available, the Soft-tissue Fillers Guideline Task Force of the ASDS, which provided the guidance, will continue to monitor the relationship between SARS-CoV-2 vaccinations and dermal filler reactions, including other types of vaccines and the relative risks for hyaluronic acid and non–hyaluronic acid types of fillers.
This article was updated 1/7/21.
outlining the potential risk and clinical relevance.
The association is not surprising, since other vaccines, including the influenza vaccine, have also been associated with inflammatory reactions in patients with dermal fillers. A warning about inflammatory events from these and other immunologic triggers should be part of routine informed consent, according to Sue Ellen Cox, MD, a coauthor of the guidance and the ASDS president-elect.
“Patients who have had dermal filler should not be discouraged from receiving the vaccine, and those who have received the vaccine should not be discouraged from receiving dermal filler,” Dr. Cox, who practices in Chapel Hill, N.C., said in an interview.
The only available data to assess the risk came from the trial of the Moderna vaccine. Of a total of 15,184 participants who received at least one dose of mRNA-1273, three developed facial or lip swelling that was presumably related to dermal filler. In the placebo group, there were no comparable inflammatory events.
“This is a very small number, but there is no reliable information about the number of patients in either group who had dermal filler, so we do not know the denominator,” Dr. Cox said.
In all three cases, the swelling at the site of dermal filler was observed within 2 days of the vaccination. None were considered a serious adverse event and all resolved. The filler had been administered 2 weeks prior to vaccination in one case, 6 months prior in a second, and time of administration was unknown in the third.
The resolution of the inflammatory reactions associated with the SARS-CoV-2 vaccine is similar to those related to dermal fillers following other immunologic triggers, which not only include other vaccines, but viral or bacterial illnesses and dental procedures. Typically, they are readily controlled with oral corticosteroids, but also typically resolve even in the absence of treatment, according to Dr. Cox.
“The good news is that these will go away,” Dr. Cox said.
The ASDS guidance is meant to alert clinicians and patients to the potential association between inflammatory events and SARS-CoV-2 vaccination in patients with dermal filler, but Dr. Cox said that it will ultimately have very little effect on her own practice. She already employs an informed consent that includes language warning about the potential risk of local reactions to immunological triggers that include vaccines. SARS-CoV-2 vaccination can now be added to examples of potential triggers, but it does not change the importance of informing patients of such triggers, Dr. Cox explained.
Asked if patients should be informed specifically about the association between dermal filler inflammatory reactions and SARS-CoV-2 vaccine, the current ASDS president and first author of the guidance, Mathew Avram, MD, JD, suggested that they should. Although he emphasized that the side effect is clearly rare, he believes it deserves attention.
“We wanted dermatologists and other physicians to be aware of the potential. We focused on the available data but specifically decided not to provide any treatment recommendations at this time,” he said in an interview.
As new data become available, the Soft-Tissue Fillers Guideline Task Force of the ASDS, which provided the guidance, will continue to monitor the relationship between SARS-CoV-2 vaccinations and dermal filler reactions, including other SARS-CoV-2 vaccines and the relative risks for hyaluronic acid and non–hyaluronic acid types of fillers.
“Our guidance was based only on the trial data, but there will soon be tens of millions of patients exposed to several different SARS-CoV-2 vaccines. We may learn things we do not know now, and we plan to communicate to our membership and others any new information as events unfold,” said Dr. Avram, who is director of dermatologic surgery, Massachusetts General Hospital, Boston,
Based on her own expertise in the field, Dr. Cox suggested that administration of SARS-CoV-2 vaccine and administration of dermal filler should be separated by at least 2 weeks regardless of which comes first. Her recommendation is not based on controlled data, but she considers this a prudent interval even if it has not been tested in a controlled study.
The full ASDS guidance is scheduled to appear in an upcoming issue of Dermatologic Surgery.
As new data become available, the Soft-tissue Fillers Guideline Task Force of the ASDS, which provided the guidance, will continue to monitor the relationship between SARS-CoV-2 vaccinations and dermal filler reactions, including other types of vaccines and the relative risks for hyaluronic acid and non–hyaluronic acid types of fillers.
This article was updated 1/7/21.