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European survey finds wide variations in the use of phototherapy for atopic eczema
GLASGOW, Scotland – , which points to the need for management guidelines.
Over 140 phototherapy practitioners from 27 European countries responded to the survey. Of the practitioners surveyed, 96% used narrow-band ultraviolet B (NB-UVB), and about 50% prescribed psoralen and ultraviolet A (PUVA) for adults. Fewer than 10% did so for children.
There was considerable variation in prescribing practices, “especially when it comes to dosing and treatment duration,” said study presenter Mia Steyn, MD, dermatology registrar, St. John’s Institute of Dermatology, Guy’s and St. Thomas’s Hospital, London.
These results, she said, demonstrate that “an optimal treatment modality either is not known or agreed upon” and that studies are required to determine treatment efficacy, cost, and safety “in a range of skin types.”
Dr. Steyn said that what is needed first is a set of consensus treatment guidelines, “hopefully leading to a randomized controlled trial” that would compare the various treatment options.
The research was presented at the British Association of Dermatologists (BAD) 2022 Annual Meeting on July 7.
Session co-chair Adam Fityan, MD, a consultant dermatologist at University Hospital Southampton NHS Foundation Trust, U.K., commented that the study was “fascinating” and “really helpful.”
Dr. Fityan, who was not involved with the survey, told this news organization that, “clearly, what we’ve seen is that there is a huge variation in the way everyone uses the different modalities of phototherapy.”
“Having that sort of knowledge will hopefully help us to think a bit more clearly about the regimens and protocols that we use and to maybe find the evidence that everyone needs to have the most effective protocol.”
The data from the study are also useful on an individual level, Dr. Fityan continued, as “you have no idea what anyone is doing” and whether “you are an outlier.”
Dr. Steyn said that phototherapy is commonly used for the treatment of atopic eczema, but the evidence for its efficacy, its impact on quality on life, its cost-effectiveness, and short- and long-term safety is “weak,” particularly in relation to real-life use.
Electronic survey
In lieu of a well-designed randomized controlled trial to answer these questions, the researchers set up a task force to assess how phototherapy is currently being used to treat atopic eczema across the United Kingdom and Europe so as to guide further research.
An electronic survey was devised, and 144 members of phototherapy groups from 27 European countries submitted their responses during 2020. Most responses came from the Netherlands (20), Italy (16), the United Kingdom (14), France (11), and Germany (10).
The results showed that NB-UVB was the most widely used modality of phototherapy, chosen by 96% of respondents. In addition, 17% of respondents said they also prescribed home-based NB-UVB, which was available in eight of the 27 countries.
When asked how they used NB-UVB, the majority (68%) of respondents said they had an age cutoff for use in children, which was set at an average age of 9 years and older, although the range was age 2 years to 16 years.
NBUVB was used as a second-line therapy instead of systemic treatments in up to 93% of adults and in 69% of children. It was used concomitantly with systemic treatment in up to 58% of adults and 11% of children, according to the survey responses.
For about 70% of respondents, the use of NB-UVB was determined by assessing the Fitzpatrick skin type, although almost 40% relied on clinical experience.
Frequency of treatment
NB-UVB was prescribed three times a week by 59% of respondents; 31% of respondents prescribed it twice a week; 7%, five times per week; and 2%, four times a week. The typical number of treatments was 21-30 for 53% of respondents, 0-20 treatments for 24%, and 31-40 treatments for 20%.
The dose was typically increased in 10% increments, although there were wide variations in how the treatment was stepped up. Dose was increased after each treatment by almost 50% of respondents, after every two treatments by almost 25%, and after every three treatments by approximately 15%.
For the majority (53%) of respondents, response to NBUVB was assessed after 7-15 treatments, while 43% waited until after 16-30 treatments. Success was defined as a 75% reduction in eczema from baseline by 56% of respondents, while 54% looked to patient satisfaction, and 47% relied on quality of life to determine success of treatment.
Maintenance NB-UVB was never used by 54% of respondents, but 44% said they used it occasionally, and 83% said they did not follow a weaning schedule at the end of treatment.
The most commonly reported adverse effects of NB-UVB were significant erythema, hyperpigmentation, and eczema flare, while the most commonly cited absolute contraindications included a history of melanoma, a history of squamous cell carcinoma, the use of photosensitizing medications, and claustrophobia.
Use of PUVA, UVA1
The next most commonly used phototherapy for atopic eczema was PUVA. Although it was available to 83% of respondents, only 52% of respondents had personally prescribed the treatment for adults, and only 7% prescribed it for children.
Of the respondents, 71% said they would switch from NB-UVB to PUVA if desired treatment outcomes were not achieved with the former, and 44% said they would “sometimes consider” PUVA as second-line therapy instead of systemic treatments. Only 13% said they would use it concomitantly with systemic treatment.
Ultraviolet A1 (UVA1) phototherapy was not widely available, with 66% of respondents declaring that they did not have access to this option and just 29% saying they prescribed it.
But when it was used, UVA1 was cited as being used often in adults by 24% of respondents, while 33% used it was used sometimes, and 43% said it was used rarely. It was used for children by 26% of respondents. In addition, 29% said they favored using UVA1 for chronic atopic eczema, and 33% favored using it for acute eczema while 38% had no preference over whether to use it for chronic versus acute atopic eczema.
Similarly to NB-UVB, there were wide variations in the use of PUVA and UVA1 by respondents in terms of dosing schedules, duration of treatment, and how response to treatment was measured.
No funding for the study has been reported. The authors have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
GLASGOW, Scotland – , which points to the need for management guidelines.
Over 140 phototherapy practitioners from 27 European countries responded to the survey. Of the practitioners surveyed, 96% used narrow-band ultraviolet B (NB-UVB), and about 50% prescribed psoralen and ultraviolet A (PUVA) for adults. Fewer than 10% did so for children.
There was considerable variation in prescribing practices, “especially when it comes to dosing and treatment duration,” said study presenter Mia Steyn, MD, dermatology registrar, St. John’s Institute of Dermatology, Guy’s and St. Thomas’s Hospital, London.
These results, she said, demonstrate that “an optimal treatment modality either is not known or agreed upon” and that studies are required to determine treatment efficacy, cost, and safety “in a range of skin types.”
Dr. Steyn said that what is needed first is a set of consensus treatment guidelines, “hopefully leading to a randomized controlled trial” that would compare the various treatment options.
The research was presented at the British Association of Dermatologists (BAD) 2022 Annual Meeting on July 7.
Session co-chair Adam Fityan, MD, a consultant dermatologist at University Hospital Southampton NHS Foundation Trust, U.K., commented that the study was “fascinating” and “really helpful.”
Dr. Fityan, who was not involved with the survey, told this news organization that, “clearly, what we’ve seen is that there is a huge variation in the way everyone uses the different modalities of phototherapy.”
“Having that sort of knowledge will hopefully help us to think a bit more clearly about the regimens and protocols that we use and to maybe find the evidence that everyone needs to have the most effective protocol.”
The data from the study are also useful on an individual level, Dr. Fityan continued, as “you have no idea what anyone is doing” and whether “you are an outlier.”
Dr. Steyn said that phototherapy is commonly used for the treatment of atopic eczema, but the evidence for its efficacy, its impact on quality on life, its cost-effectiveness, and short- and long-term safety is “weak,” particularly in relation to real-life use.
Electronic survey
In lieu of a well-designed randomized controlled trial to answer these questions, the researchers set up a task force to assess how phototherapy is currently being used to treat atopic eczema across the United Kingdom and Europe so as to guide further research.
An electronic survey was devised, and 144 members of phototherapy groups from 27 European countries submitted their responses during 2020. Most responses came from the Netherlands (20), Italy (16), the United Kingdom (14), France (11), and Germany (10).
The results showed that NB-UVB was the most widely used modality of phototherapy, chosen by 96% of respondents. In addition, 17% of respondents said they also prescribed home-based NB-UVB, which was available in eight of the 27 countries.
When asked how they used NB-UVB, the majority (68%) of respondents said they had an age cutoff for use in children, which was set at an average age of 9 years and older, although the range was age 2 years to 16 years.
NBUVB was used as a second-line therapy instead of systemic treatments in up to 93% of adults and in 69% of children. It was used concomitantly with systemic treatment in up to 58% of adults and 11% of children, according to the survey responses.
For about 70% of respondents, the use of NB-UVB was determined by assessing the Fitzpatrick skin type, although almost 40% relied on clinical experience.
Frequency of treatment
NB-UVB was prescribed three times a week by 59% of respondents; 31% of respondents prescribed it twice a week; 7%, five times per week; and 2%, four times a week. The typical number of treatments was 21-30 for 53% of respondents, 0-20 treatments for 24%, and 31-40 treatments for 20%.
The dose was typically increased in 10% increments, although there were wide variations in how the treatment was stepped up. Dose was increased after each treatment by almost 50% of respondents, after every two treatments by almost 25%, and after every three treatments by approximately 15%.
For the majority (53%) of respondents, response to NBUVB was assessed after 7-15 treatments, while 43% waited until after 16-30 treatments. Success was defined as a 75% reduction in eczema from baseline by 56% of respondents, while 54% looked to patient satisfaction, and 47% relied on quality of life to determine success of treatment.
Maintenance NB-UVB was never used by 54% of respondents, but 44% said they used it occasionally, and 83% said they did not follow a weaning schedule at the end of treatment.
The most commonly reported adverse effects of NB-UVB were significant erythema, hyperpigmentation, and eczema flare, while the most commonly cited absolute contraindications included a history of melanoma, a history of squamous cell carcinoma, the use of photosensitizing medications, and claustrophobia.
Use of PUVA, UVA1
The next most commonly used phototherapy for atopic eczema was PUVA. Although it was available to 83% of respondents, only 52% of respondents had personally prescribed the treatment for adults, and only 7% prescribed it for children.
Of the respondents, 71% said they would switch from NB-UVB to PUVA if desired treatment outcomes were not achieved with the former, and 44% said they would “sometimes consider” PUVA as second-line therapy instead of systemic treatments. Only 13% said they would use it concomitantly with systemic treatment.
Ultraviolet A1 (UVA1) phototherapy was not widely available, with 66% of respondents declaring that they did not have access to this option and just 29% saying they prescribed it.
But when it was used, UVA1 was cited as being used often in adults by 24% of respondents, while 33% used it was used sometimes, and 43% said it was used rarely. It was used for children by 26% of respondents. In addition, 29% said they favored using UVA1 for chronic atopic eczema, and 33% favored using it for acute eczema while 38% had no preference over whether to use it for chronic versus acute atopic eczema.
Similarly to NB-UVB, there were wide variations in the use of PUVA and UVA1 by respondents in terms of dosing schedules, duration of treatment, and how response to treatment was measured.
No funding for the study has been reported. The authors have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
GLASGOW, Scotland – , which points to the need for management guidelines.
Over 140 phototherapy practitioners from 27 European countries responded to the survey. Of the practitioners surveyed, 96% used narrow-band ultraviolet B (NB-UVB), and about 50% prescribed psoralen and ultraviolet A (PUVA) for adults. Fewer than 10% did so for children.
There was considerable variation in prescribing practices, “especially when it comes to dosing and treatment duration,” said study presenter Mia Steyn, MD, dermatology registrar, St. John’s Institute of Dermatology, Guy’s and St. Thomas’s Hospital, London.
These results, she said, demonstrate that “an optimal treatment modality either is not known or agreed upon” and that studies are required to determine treatment efficacy, cost, and safety “in a range of skin types.”
Dr. Steyn said that what is needed first is a set of consensus treatment guidelines, “hopefully leading to a randomized controlled trial” that would compare the various treatment options.
The research was presented at the British Association of Dermatologists (BAD) 2022 Annual Meeting on July 7.
Session co-chair Adam Fityan, MD, a consultant dermatologist at University Hospital Southampton NHS Foundation Trust, U.K., commented that the study was “fascinating” and “really helpful.”
Dr. Fityan, who was not involved with the survey, told this news organization that, “clearly, what we’ve seen is that there is a huge variation in the way everyone uses the different modalities of phototherapy.”
“Having that sort of knowledge will hopefully help us to think a bit more clearly about the regimens and protocols that we use and to maybe find the evidence that everyone needs to have the most effective protocol.”
The data from the study are also useful on an individual level, Dr. Fityan continued, as “you have no idea what anyone is doing” and whether “you are an outlier.”
Dr. Steyn said that phototherapy is commonly used for the treatment of atopic eczema, but the evidence for its efficacy, its impact on quality on life, its cost-effectiveness, and short- and long-term safety is “weak,” particularly in relation to real-life use.
Electronic survey
In lieu of a well-designed randomized controlled trial to answer these questions, the researchers set up a task force to assess how phototherapy is currently being used to treat atopic eczema across the United Kingdom and Europe so as to guide further research.
An electronic survey was devised, and 144 members of phototherapy groups from 27 European countries submitted their responses during 2020. Most responses came from the Netherlands (20), Italy (16), the United Kingdom (14), France (11), and Germany (10).
The results showed that NB-UVB was the most widely used modality of phototherapy, chosen by 96% of respondents. In addition, 17% of respondents said they also prescribed home-based NB-UVB, which was available in eight of the 27 countries.
When asked how they used NB-UVB, the majority (68%) of respondents said they had an age cutoff for use in children, which was set at an average age of 9 years and older, although the range was age 2 years to 16 years.
NBUVB was used as a second-line therapy instead of systemic treatments in up to 93% of adults and in 69% of children. It was used concomitantly with systemic treatment in up to 58% of adults and 11% of children, according to the survey responses.
For about 70% of respondents, the use of NB-UVB was determined by assessing the Fitzpatrick skin type, although almost 40% relied on clinical experience.
Frequency of treatment
NB-UVB was prescribed three times a week by 59% of respondents; 31% of respondents prescribed it twice a week; 7%, five times per week; and 2%, four times a week. The typical number of treatments was 21-30 for 53% of respondents, 0-20 treatments for 24%, and 31-40 treatments for 20%.
The dose was typically increased in 10% increments, although there were wide variations in how the treatment was stepped up. Dose was increased after each treatment by almost 50% of respondents, after every two treatments by almost 25%, and after every three treatments by approximately 15%.
For the majority (53%) of respondents, response to NBUVB was assessed after 7-15 treatments, while 43% waited until after 16-30 treatments. Success was defined as a 75% reduction in eczema from baseline by 56% of respondents, while 54% looked to patient satisfaction, and 47% relied on quality of life to determine success of treatment.
Maintenance NB-UVB was never used by 54% of respondents, but 44% said they used it occasionally, and 83% said they did not follow a weaning schedule at the end of treatment.
The most commonly reported adverse effects of NB-UVB were significant erythema, hyperpigmentation, and eczema flare, while the most commonly cited absolute contraindications included a history of melanoma, a history of squamous cell carcinoma, the use of photosensitizing medications, and claustrophobia.
Use of PUVA, UVA1
The next most commonly used phototherapy for atopic eczema was PUVA. Although it was available to 83% of respondents, only 52% of respondents had personally prescribed the treatment for adults, and only 7% prescribed it for children.
Of the respondents, 71% said they would switch from NB-UVB to PUVA if desired treatment outcomes were not achieved with the former, and 44% said they would “sometimes consider” PUVA as second-line therapy instead of systemic treatments. Only 13% said they would use it concomitantly with systemic treatment.
Ultraviolet A1 (UVA1) phototherapy was not widely available, with 66% of respondents declaring that they did not have access to this option and just 29% saying they prescribed it.
But when it was used, UVA1 was cited as being used often in adults by 24% of respondents, while 33% used it was used sometimes, and 43% said it was used rarely. It was used for children by 26% of respondents. In addition, 29% said they favored using UVA1 for chronic atopic eczema, and 33% favored using it for acute eczema while 38% had no preference over whether to use it for chronic versus acute atopic eczema.
Similarly to NB-UVB, there were wide variations in the use of PUVA and UVA1 by respondents in terms of dosing schedules, duration of treatment, and how response to treatment was measured.
No funding for the study has been reported. The authors have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
‘Myriad’ dermatologic reactions after COVID-19 vaccination
GLASGOW – Individuals given COVID-19 vaccination may experience a wide range of dermatologic reactions, some of which may be life-threatening, reveals a prospective Indian study that suggests histopathological assessment is key to understanding the cause.
Studying more than 130 patients who presented with vaccine-related dermatologic reactions, the researchers found that the most common acute adverse events were acute urticaria, generalized pruritus, and maculopapular rash.
Dermal hypersensitivity reactions occurred within 3 days of vaccination, which suggests the culprit is an immediate type 1 hypersensitivity reaction, said study presenter Alpana Mohta, MD, department of dermatology, Sardar Patel Medical College, Bikaner, Rajasthan, India. Most of the patients had received the AstraZeneca vaccine, she said.
, which occurred within 3-4 weeks of vaccination and could be a result of delayed hypersensitivity or a T cell–mediated skin reaction caused by “molecular mimicry with a viral epitope,” Dr. Mohta said.
The research was presented at the British Association of Dermatologists (BAD) 2022 Annual Meeting on July 5.
Dr. Mohta said that, given the “surge” in the number of people who have been vaccinated, it is “imperative as dermatologists” to maintain a “very high index of suspicion to differentiate reactions caused by vaccination” from other causes, and a proper assessment should be performed in “every patient” who presents with a possible reaction.
She also emphasized that “since so many clinical [COVID-19] variants are being encountered,” histopathological assessment could “help in better understanding the underlying pathophysiology” of every reaction.
Dr. Mohta began her presentation by explaining that India is running one of the “world’s largest vaccination drives” for COVID-19, with almost 90% of adults fully vaccinated.
She added that studies have indicated that the incidence of cutaneous adverse reactions following COVID-19 vaccination ranges from 1.0% to 1.9% and that dermatologists have encountered a “plethora” of related reactions.
Dr. Mohta emphasized that the “myriad presentations” of these reactions means that correlating clinical and pathological findings is “key” to understanding the underlying pathophysiology.
She and her colleagues therefore conducted a prospective, hospital-based study of patients who self-reported mucocutaneous adverse reactions from April to December 2021, within 4 weeks of receiving a COVID-19 vaccine.
They gathered information on the patients’ signs and symptoms, as well as the date of vaccine administration and the type of vaccine given, alongside a detailed medical history, including previous allergies, prior COVID-19 infection, and any comorbidities.
The patients also underwent a clinical examination and laboratory investigations, and their cases were assessed by two senior dermatologists to determine whether the association between the adverse event and COVID-19 vaccination was likely causal.
Dr. Mohta said that 132 adult patients, with an average age of 38.2 years, were identified as having vaccine-related reactions.
This included 84 (63.6%) patients with a mild reaction, defined as resolving with symptomatic treatment; 43 (32.6%) patients with a moderate reaction, defined as extensive and lasting for more than 4 weeks; and five (3.8%) patients with severe reactions, defined as systemic and potentially life-threatening.
The mild group included 21 patients with acute urticaria, with a mean onset of 1.2 days following vaccination, as well as 20 cases of maculopapular rash, with a mean onset of 2.4 days; 18 cases of pityriasis rosea, with a mean onset of 17.4 days; and nine cases of eruptive pseudoangioma, with a mean onset of 3.5 days.
There were 16 cases of lichen planus in the moderate group, with a mean onset of 22.7 days after COVID-19 vaccination; nine cases of herpes zoster, with a mean onset of 15.3 days; and one case of pityriasis lichenoides et varioliformis acuta (PLEVA), among others.
The severe group included two cases of erythroderma, with a mean onset of 9 days after vaccination; one case of drug rash with eosinophilia and systemic symptoms (DRESS), with a mean onset of 20 days; and one case each of subacute cutaneous lupus erythematosus (SCLE) and bullous pemphigoid, with mean onsets of 15 days and 14 days, respectively.
Turning to the histopathological results, Dr. Mohta explained that only 57 patients from their cohort agreed to have a skin biopsy.
Results of those skin biopsies showed that 21 (36.8%) patients had vaccine-related eruption of papules and plaques, predominantly spongiotic dermatitis. This correlated with the clinical diagnoses of pityriasis rosea, maculopapular and papulosquamous rash, and DRESS.
Lichenoid and interface dermatitis were seen in 13 (22.8%) patients, which correlated with the clinical diagnoses of lichen planus, PLEVA, and SCLE. Eleven (19.3%) patients had a dermal hypersensitivity reaction, equated to the clinical diagnoses of urticaria, and eruptive pseudoangioma.
Dr. Mohta acknowledged that the study was limited by the inability to calculate the “true prevalence of vaccine-associated reactions,” and because immunohistochemistry was not performed.
Session chair Saleem Taibjee, MD, department of dermatology, Dorset County Hospital NHS Foundation Trust, Dorchester, United Kingdom, congratulated Dr. Mohta on her “very interesting” presentation, highlighting their “extensive experience in such a large cohort of patients.”
He asked what type of COVID-19 vaccines the patients had received, and whether Dr. Mohta could provide any “insights into which patients you can safely give the vaccine again to, and those [to whom] you may avoid giving further doses.”
Dr. Mohta said that the majority of the patients in the study received the AstraZeneca COVID-19 vaccine, as that was the one most commonly used in India at the time, with around 30 patients receiving the Indian Covishield version of the AstraZeneca vaccine. (The two-dose AstraZeneca vaccine, which is cheaper to manufacture and easier to store at typical refrigerated temperatures than mRNA-based vaccines, has been authorized by the World Health Organization, the European Medicines Agency, and over 50 countries but has not been authorized in the United States.)
She added that none of the patients in the study with mild-to-moderate skin reactions were advised against receiving further doses” but that those with severe reactions “were advised not to take any further doses.”
Consequently, in the case of mild reactions, “further doses are not a contraindication,” Dr. Mohta said, but patients with more severe reactions should be considered on a “case by case basis.”
A version of this article first appeared on Medscape.com.
GLASGOW – Individuals given COVID-19 vaccination may experience a wide range of dermatologic reactions, some of which may be life-threatening, reveals a prospective Indian study that suggests histopathological assessment is key to understanding the cause.
Studying more than 130 patients who presented with vaccine-related dermatologic reactions, the researchers found that the most common acute adverse events were acute urticaria, generalized pruritus, and maculopapular rash.
Dermal hypersensitivity reactions occurred within 3 days of vaccination, which suggests the culprit is an immediate type 1 hypersensitivity reaction, said study presenter Alpana Mohta, MD, department of dermatology, Sardar Patel Medical College, Bikaner, Rajasthan, India. Most of the patients had received the AstraZeneca vaccine, she said.
, which occurred within 3-4 weeks of vaccination and could be a result of delayed hypersensitivity or a T cell–mediated skin reaction caused by “molecular mimicry with a viral epitope,” Dr. Mohta said.
The research was presented at the British Association of Dermatologists (BAD) 2022 Annual Meeting on July 5.
Dr. Mohta said that, given the “surge” in the number of people who have been vaccinated, it is “imperative as dermatologists” to maintain a “very high index of suspicion to differentiate reactions caused by vaccination” from other causes, and a proper assessment should be performed in “every patient” who presents with a possible reaction.
She also emphasized that “since so many clinical [COVID-19] variants are being encountered,” histopathological assessment could “help in better understanding the underlying pathophysiology” of every reaction.
Dr. Mohta began her presentation by explaining that India is running one of the “world’s largest vaccination drives” for COVID-19, with almost 90% of adults fully vaccinated.
She added that studies have indicated that the incidence of cutaneous adverse reactions following COVID-19 vaccination ranges from 1.0% to 1.9% and that dermatologists have encountered a “plethora” of related reactions.
Dr. Mohta emphasized that the “myriad presentations” of these reactions means that correlating clinical and pathological findings is “key” to understanding the underlying pathophysiology.
She and her colleagues therefore conducted a prospective, hospital-based study of patients who self-reported mucocutaneous adverse reactions from April to December 2021, within 4 weeks of receiving a COVID-19 vaccine.
They gathered information on the patients’ signs and symptoms, as well as the date of vaccine administration and the type of vaccine given, alongside a detailed medical history, including previous allergies, prior COVID-19 infection, and any comorbidities.
The patients also underwent a clinical examination and laboratory investigations, and their cases were assessed by two senior dermatologists to determine whether the association between the adverse event and COVID-19 vaccination was likely causal.
Dr. Mohta said that 132 adult patients, with an average age of 38.2 years, were identified as having vaccine-related reactions.
This included 84 (63.6%) patients with a mild reaction, defined as resolving with symptomatic treatment; 43 (32.6%) patients with a moderate reaction, defined as extensive and lasting for more than 4 weeks; and five (3.8%) patients with severe reactions, defined as systemic and potentially life-threatening.
The mild group included 21 patients with acute urticaria, with a mean onset of 1.2 days following vaccination, as well as 20 cases of maculopapular rash, with a mean onset of 2.4 days; 18 cases of pityriasis rosea, with a mean onset of 17.4 days; and nine cases of eruptive pseudoangioma, with a mean onset of 3.5 days.
There were 16 cases of lichen planus in the moderate group, with a mean onset of 22.7 days after COVID-19 vaccination; nine cases of herpes zoster, with a mean onset of 15.3 days; and one case of pityriasis lichenoides et varioliformis acuta (PLEVA), among others.
The severe group included two cases of erythroderma, with a mean onset of 9 days after vaccination; one case of drug rash with eosinophilia and systemic symptoms (DRESS), with a mean onset of 20 days; and one case each of subacute cutaneous lupus erythematosus (SCLE) and bullous pemphigoid, with mean onsets of 15 days and 14 days, respectively.
Turning to the histopathological results, Dr. Mohta explained that only 57 patients from their cohort agreed to have a skin biopsy.
Results of those skin biopsies showed that 21 (36.8%) patients had vaccine-related eruption of papules and plaques, predominantly spongiotic dermatitis. This correlated with the clinical diagnoses of pityriasis rosea, maculopapular and papulosquamous rash, and DRESS.
Lichenoid and interface dermatitis were seen in 13 (22.8%) patients, which correlated with the clinical diagnoses of lichen planus, PLEVA, and SCLE. Eleven (19.3%) patients had a dermal hypersensitivity reaction, equated to the clinical diagnoses of urticaria, and eruptive pseudoangioma.
Dr. Mohta acknowledged that the study was limited by the inability to calculate the “true prevalence of vaccine-associated reactions,” and because immunohistochemistry was not performed.
Session chair Saleem Taibjee, MD, department of dermatology, Dorset County Hospital NHS Foundation Trust, Dorchester, United Kingdom, congratulated Dr. Mohta on her “very interesting” presentation, highlighting their “extensive experience in such a large cohort of patients.”
He asked what type of COVID-19 vaccines the patients had received, and whether Dr. Mohta could provide any “insights into which patients you can safely give the vaccine again to, and those [to whom] you may avoid giving further doses.”
Dr. Mohta said that the majority of the patients in the study received the AstraZeneca COVID-19 vaccine, as that was the one most commonly used in India at the time, with around 30 patients receiving the Indian Covishield version of the AstraZeneca vaccine. (The two-dose AstraZeneca vaccine, which is cheaper to manufacture and easier to store at typical refrigerated temperatures than mRNA-based vaccines, has been authorized by the World Health Organization, the European Medicines Agency, and over 50 countries but has not been authorized in the United States.)
She added that none of the patients in the study with mild-to-moderate skin reactions were advised against receiving further doses” but that those with severe reactions “were advised not to take any further doses.”
Consequently, in the case of mild reactions, “further doses are not a contraindication,” Dr. Mohta said, but patients with more severe reactions should be considered on a “case by case basis.”
A version of this article first appeared on Medscape.com.
GLASGOW – Individuals given COVID-19 vaccination may experience a wide range of dermatologic reactions, some of which may be life-threatening, reveals a prospective Indian study that suggests histopathological assessment is key to understanding the cause.
Studying more than 130 patients who presented with vaccine-related dermatologic reactions, the researchers found that the most common acute adverse events were acute urticaria, generalized pruritus, and maculopapular rash.
Dermal hypersensitivity reactions occurred within 3 days of vaccination, which suggests the culprit is an immediate type 1 hypersensitivity reaction, said study presenter Alpana Mohta, MD, department of dermatology, Sardar Patel Medical College, Bikaner, Rajasthan, India. Most of the patients had received the AstraZeneca vaccine, she said.
, which occurred within 3-4 weeks of vaccination and could be a result of delayed hypersensitivity or a T cell–mediated skin reaction caused by “molecular mimicry with a viral epitope,” Dr. Mohta said.
The research was presented at the British Association of Dermatologists (BAD) 2022 Annual Meeting on July 5.
Dr. Mohta said that, given the “surge” in the number of people who have been vaccinated, it is “imperative as dermatologists” to maintain a “very high index of suspicion to differentiate reactions caused by vaccination” from other causes, and a proper assessment should be performed in “every patient” who presents with a possible reaction.
She also emphasized that “since so many clinical [COVID-19] variants are being encountered,” histopathological assessment could “help in better understanding the underlying pathophysiology” of every reaction.
Dr. Mohta began her presentation by explaining that India is running one of the “world’s largest vaccination drives” for COVID-19, with almost 90% of adults fully vaccinated.
She added that studies have indicated that the incidence of cutaneous adverse reactions following COVID-19 vaccination ranges from 1.0% to 1.9% and that dermatologists have encountered a “plethora” of related reactions.
Dr. Mohta emphasized that the “myriad presentations” of these reactions means that correlating clinical and pathological findings is “key” to understanding the underlying pathophysiology.
She and her colleagues therefore conducted a prospective, hospital-based study of patients who self-reported mucocutaneous adverse reactions from April to December 2021, within 4 weeks of receiving a COVID-19 vaccine.
They gathered information on the patients’ signs and symptoms, as well as the date of vaccine administration and the type of vaccine given, alongside a detailed medical history, including previous allergies, prior COVID-19 infection, and any comorbidities.
The patients also underwent a clinical examination and laboratory investigations, and their cases were assessed by two senior dermatologists to determine whether the association between the adverse event and COVID-19 vaccination was likely causal.
Dr. Mohta said that 132 adult patients, with an average age of 38.2 years, were identified as having vaccine-related reactions.
This included 84 (63.6%) patients with a mild reaction, defined as resolving with symptomatic treatment; 43 (32.6%) patients with a moderate reaction, defined as extensive and lasting for more than 4 weeks; and five (3.8%) patients with severe reactions, defined as systemic and potentially life-threatening.
The mild group included 21 patients with acute urticaria, with a mean onset of 1.2 days following vaccination, as well as 20 cases of maculopapular rash, with a mean onset of 2.4 days; 18 cases of pityriasis rosea, with a mean onset of 17.4 days; and nine cases of eruptive pseudoangioma, with a mean onset of 3.5 days.
There were 16 cases of lichen planus in the moderate group, with a mean onset of 22.7 days after COVID-19 vaccination; nine cases of herpes zoster, with a mean onset of 15.3 days; and one case of pityriasis lichenoides et varioliformis acuta (PLEVA), among others.
The severe group included two cases of erythroderma, with a mean onset of 9 days after vaccination; one case of drug rash with eosinophilia and systemic symptoms (DRESS), with a mean onset of 20 days; and one case each of subacute cutaneous lupus erythematosus (SCLE) and bullous pemphigoid, with mean onsets of 15 days and 14 days, respectively.
Turning to the histopathological results, Dr. Mohta explained that only 57 patients from their cohort agreed to have a skin biopsy.
Results of those skin biopsies showed that 21 (36.8%) patients had vaccine-related eruption of papules and plaques, predominantly spongiotic dermatitis. This correlated with the clinical diagnoses of pityriasis rosea, maculopapular and papulosquamous rash, and DRESS.
Lichenoid and interface dermatitis were seen in 13 (22.8%) patients, which correlated with the clinical diagnoses of lichen planus, PLEVA, and SCLE. Eleven (19.3%) patients had a dermal hypersensitivity reaction, equated to the clinical diagnoses of urticaria, and eruptive pseudoangioma.
Dr. Mohta acknowledged that the study was limited by the inability to calculate the “true prevalence of vaccine-associated reactions,” and because immunohistochemistry was not performed.
Session chair Saleem Taibjee, MD, department of dermatology, Dorset County Hospital NHS Foundation Trust, Dorchester, United Kingdom, congratulated Dr. Mohta on her “very interesting” presentation, highlighting their “extensive experience in such a large cohort of patients.”
He asked what type of COVID-19 vaccines the patients had received, and whether Dr. Mohta could provide any “insights into which patients you can safely give the vaccine again to, and those [to whom] you may avoid giving further doses.”
Dr. Mohta said that the majority of the patients in the study received the AstraZeneca COVID-19 vaccine, as that was the one most commonly used in India at the time, with around 30 patients receiving the Indian Covishield version of the AstraZeneca vaccine. (The two-dose AstraZeneca vaccine, which is cheaper to manufacture and easier to store at typical refrigerated temperatures than mRNA-based vaccines, has been authorized by the World Health Organization, the European Medicines Agency, and over 50 countries but has not been authorized in the United States.)
She added that none of the patients in the study with mild-to-moderate skin reactions were advised against receiving further doses” but that those with severe reactions “were advised not to take any further doses.”
Consequently, in the case of mild reactions, “further doses are not a contraindication,” Dr. Mohta said, but patients with more severe reactions should be considered on a “case by case basis.”
A version of this article first appeared on Medscape.com.
U.K. survey: Dermatologists want training in prescribing antipsychotics for delusional infestation
GLASGOW – that also indicated there is a clear demand for training in prescribing these drugs.
Delusional infestation is a rare disorder characterized by an individual’s belief that his or her skin, body, or immediate environment is infested by small, living pathogens, despite a lack of any medical evidence. Most of these patients require antipsychotic medication to alleviate symptoms.
The survey of almost 80 dermatologists found that almost 90% had not prescribed antipsychotics in the previous month for patients with psychodermatology conditions and that the most common barrier to prescribing was lack of experience with the drugs.
This was reflected in only 10% of survey respondents who said they were “happy to” prescribe antipsychotics without consulting either dermatology or psychiatric colleagues, and less than half having attended a related course.
Yet the research, presented at the annual meeting of the British Association of Dermatologists, indicated that more than 75% of respondents would attend such a course to increase their confidence.
This finding, said study presenter Ling Li, MD, Churchill Hospital, Oxford (England) University Hospitals NHS Foundation Trust, shows that there is a “clear demand for training, particularly among all the registrars [residents] who we surveyed.”
Dr. Li noted that the UK’s Joint Royal Colleges of Physicians Training Board’s latest curriculum for dermatology training highlights psychocutaneous medicine as a key area, and “that will include antipsychotic medication.”
The BAD also recently published guidelines for the management of adults with delusional infestation, which includes a recommendation to conduct a survey on attitudes toward antipsychotic prescribing for the condition among U.K. dermatologists.
Heeding that call, Dr. Li and colleagues sent an email containing a 10-question online survey to members of the BAD and the British Society for Medical Dermatology. Questions covered familiarity with antipsychotics and frequency of prescribing, confidence around antipsychotics, and current training and future needs. Responses were received between February through April 2021.
Among the 79 respondents, 51 (65%) were consultants and 20 (25%) were dermatology registrars, with the remainder dermatology clinical fellows, foundation doctors, or other doctors. A total of 31 respondents had an average of more than 50 visits with patients per week, 18 had an average of 41-50 patient visits, and 13 had an average of 31-40 visits per week; the remainder had an average of 11-30 visits per week.
Most of the respondents (39) said they had seen 2-5 patients with psychodermatology conditions in the last 6 months, while 17 said they had seen 1 patient, 13 said they had seen more than 10 patients, and 6 said they had seen 6-10 patients (4 had seen none and 1 could not remember).
The most commonly prescribed antipsychotics for psychodermatology patients in the past 6 months were risperidone (Risperdal; prescribed by five respondents), followed by olanzapine (Zyprexa; by four respondents). Seventy respondents had not prescribed any antipsychotics.
Asked about how confident they felt about prescribing antipsychotic medication for patients with delusional infestation, 8 (10%) said they were happy to prescribe independently, while 42 (54%) said they were not at all confident. Another 10 (13%) respondents said they would be happy to prescribe the medications after liaising with a dermatology colleague, while 17 (22%) said they would prefer to consult with the psychiatry team.
The most common barrier to prescribing antipsychotic medications was a lack of experience with the drugs, cited by 66 respondents, followed by concerns over drug monitoring, cited by 43 respondents.
In addition, 42 respondents highlighted concerns over adverse effects, 36 cited lack of experience in psychodermatology clinics, and 19 cited lack of experience in discussing psychodermatologic conditions with patients. Other barriers mentioned by the respondents included difficulties with patient acceptance of a psychiatric medication prescribed by a dermatologist.
An audience member went further, saying that clinicians have been told not to “confront” such patients and that the temptation is therefore to cloak the discussion of antipsychotics in nonthreatening language so that it is more acceptable to the patient.
However, under the U.K. system, a letter with the results of the consultation, including information that an antipsychotic has been prescribed, must be sent to the patient’s family doctor along with a copy that goes to the patient. “The situation is almost impossible,” the audience member said, adding that there “must be some arrangement where in certain circumstances dermatologists could be allowed not to write to the patient” or alternatively, “write an entirely different letter” to the family doctor.
Session cochair Susannah Baron, MD, a consultant dermatologist at St. John’s Institute of Dermatology, Guy’s and St. Thomas’ Hospital, London, said that, in these situations, it is “really helpful to talk about doses” with patients.
She explained that she uses the analogy of aspirin, which has different effects depending on the dose given, giving pain relief at high doses but primarily an antiplatelet effect at low doses.
In the case of an antipsychotic, it is helpful to explain to the patient that “you don’t think they’re psychotic, and you’re prescribing it in a very low dose, because what it can do is help with their symptoms,” Dr. Baron added. “You have to be very open because if you’re not, they go to the pharmacy, and the pharmacist says: ‘Why are you on an antipsychotic?’ ”
Further results from the survey revealed that 56 (71%) respondents did not have access to a specialist psychodermatology clinic, whereas 36 (46%) had not yet attended a psychodermatology course.
Despite these responses, 60 (77%) respondents said they would be interested in attending a training course for prescribing antipsychotics, which included all 20 of the registrars who took part in the survey. a psychodermatologist at Frimley Health Foundation Trust, Windsor, England, and lead author of the BAD guidelines, commented from the audience that the survey results were “sort of what we expected.”
She explained that the intention of the authors when developing the guidelines “was to be able to help our junior colleagues and our peers to be able to feel competent to discuss antipsychotics with patients with delusional infestation and also initiate management.”
Dr. Ahmed added: “Why we’re encouraging our colleagues to prescribe antipsychotics is the longer you leave this type of psychotic illness untreated, the worse the prognosis.”
No funding or relevant financial relationships were declared.
A version of this article first appeared on Medscape.com.
GLASGOW – that also indicated there is a clear demand for training in prescribing these drugs.
Delusional infestation is a rare disorder characterized by an individual’s belief that his or her skin, body, or immediate environment is infested by small, living pathogens, despite a lack of any medical evidence. Most of these patients require antipsychotic medication to alleviate symptoms.
The survey of almost 80 dermatologists found that almost 90% had not prescribed antipsychotics in the previous month for patients with psychodermatology conditions and that the most common barrier to prescribing was lack of experience with the drugs.
This was reflected in only 10% of survey respondents who said they were “happy to” prescribe antipsychotics without consulting either dermatology or psychiatric colleagues, and less than half having attended a related course.
Yet the research, presented at the annual meeting of the British Association of Dermatologists, indicated that more than 75% of respondents would attend such a course to increase their confidence.
This finding, said study presenter Ling Li, MD, Churchill Hospital, Oxford (England) University Hospitals NHS Foundation Trust, shows that there is a “clear demand for training, particularly among all the registrars [residents] who we surveyed.”
Dr. Li noted that the UK’s Joint Royal Colleges of Physicians Training Board’s latest curriculum for dermatology training highlights psychocutaneous medicine as a key area, and “that will include antipsychotic medication.”
The BAD also recently published guidelines for the management of adults with delusional infestation, which includes a recommendation to conduct a survey on attitudes toward antipsychotic prescribing for the condition among U.K. dermatologists.
Heeding that call, Dr. Li and colleagues sent an email containing a 10-question online survey to members of the BAD and the British Society for Medical Dermatology. Questions covered familiarity with antipsychotics and frequency of prescribing, confidence around antipsychotics, and current training and future needs. Responses were received between February through April 2021.
Among the 79 respondents, 51 (65%) were consultants and 20 (25%) were dermatology registrars, with the remainder dermatology clinical fellows, foundation doctors, or other doctors. A total of 31 respondents had an average of more than 50 visits with patients per week, 18 had an average of 41-50 patient visits, and 13 had an average of 31-40 visits per week; the remainder had an average of 11-30 visits per week.
Most of the respondents (39) said they had seen 2-5 patients with psychodermatology conditions in the last 6 months, while 17 said they had seen 1 patient, 13 said they had seen more than 10 patients, and 6 said they had seen 6-10 patients (4 had seen none and 1 could not remember).
The most commonly prescribed antipsychotics for psychodermatology patients in the past 6 months were risperidone (Risperdal; prescribed by five respondents), followed by olanzapine (Zyprexa; by four respondents). Seventy respondents had not prescribed any antipsychotics.
Asked about how confident they felt about prescribing antipsychotic medication for patients with delusional infestation, 8 (10%) said they were happy to prescribe independently, while 42 (54%) said they were not at all confident. Another 10 (13%) respondents said they would be happy to prescribe the medications after liaising with a dermatology colleague, while 17 (22%) said they would prefer to consult with the psychiatry team.
The most common barrier to prescribing antipsychotic medications was a lack of experience with the drugs, cited by 66 respondents, followed by concerns over drug monitoring, cited by 43 respondents.
In addition, 42 respondents highlighted concerns over adverse effects, 36 cited lack of experience in psychodermatology clinics, and 19 cited lack of experience in discussing psychodermatologic conditions with patients. Other barriers mentioned by the respondents included difficulties with patient acceptance of a psychiatric medication prescribed by a dermatologist.
An audience member went further, saying that clinicians have been told not to “confront” such patients and that the temptation is therefore to cloak the discussion of antipsychotics in nonthreatening language so that it is more acceptable to the patient.
However, under the U.K. system, a letter with the results of the consultation, including information that an antipsychotic has been prescribed, must be sent to the patient’s family doctor along with a copy that goes to the patient. “The situation is almost impossible,” the audience member said, adding that there “must be some arrangement where in certain circumstances dermatologists could be allowed not to write to the patient” or alternatively, “write an entirely different letter” to the family doctor.
Session cochair Susannah Baron, MD, a consultant dermatologist at St. John’s Institute of Dermatology, Guy’s and St. Thomas’ Hospital, London, said that, in these situations, it is “really helpful to talk about doses” with patients.
She explained that she uses the analogy of aspirin, which has different effects depending on the dose given, giving pain relief at high doses but primarily an antiplatelet effect at low doses.
In the case of an antipsychotic, it is helpful to explain to the patient that “you don’t think they’re psychotic, and you’re prescribing it in a very low dose, because what it can do is help with their symptoms,” Dr. Baron added. “You have to be very open because if you’re not, they go to the pharmacy, and the pharmacist says: ‘Why are you on an antipsychotic?’ ”
Further results from the survey revealed that 56 (71%) respondents did not have access to a specialist psychodermatology clinic, whereas 36 (46%) had not yet attended a psychodermatology course.
Despite these responses, 60 (77%) respondents said they would be interested in attending a training course for prescribing antipsychotics, which included all 20 of the registrars who took part in the survey. a psychodermatologist at Frimley Health Foundation Trust, Windsor, England, and lead author of the BAD guidelines, commented from the audience that the survey results were “sort of what we expected.”
She explained that the intention of the authors when developing the guidelines “was to be able to help our junior colleagues and our peers to be able to feel competent to discuss antipsychotics with patients with delusional infestation and also initiate management.”
Dr. Ahmed added: “Why we’re encouraging our colleagues to prescribe antipsychotics is the longer you leave this type of psychotic illness untreated, the worse the prognosis.”
No funding or relevant financial relationships were declared.
A version of this article first appeared on Medscape.com.
GLASGOW – that also indicated there is a clear demand for training in prescribing these drugs.
Delusional infestation is a rare disorder characterized by an individual’s belief that his or her skin, body, or immediate environment is infested by small, living pathogens, despite a lack of any medical evidence. Most of these patients require antipsychotic medication to alleviate symptoms.
The survey of almost 80 dermatologists found that almost 90% had not prescribed antipsychotics in the previous month for patients with psychodermatology conditions and that the most common barrier to prescribing was lack of experience with the drugs.
This was reflected in only 10% of survey respondents who said they were “happy to” prescribe antipsychotics without consulting either dermatology or psychiatric colleagues, and less than half having attended a related course.
Yet the research, presented at the annual meeting of the British Association of Dermatologists, indicated that more than 75% of respondents would attend such a course to increase their confidence.
This finding, said study presenter Ling Li, MD, Churchill Hospital, Oxford (England) University Hospitals NHS Foundation Trust, shows that there is a “clear demand for training, particularly among all the registrars [residents] who we surveyed.”
Dr. Li noted that the UK’s Joint Royal Colleges of Physicians Training Board’s latest curriculum for dermatology training highlights psychocutaneous medicine as a key area, and “that will include antipsychotic medication.”
The BAD also recently published guidelines for the management of adults with delusional infestation, which includes a recommendation to conduct a survey on attitudes toward antipsychotic prescribing for the condition among U.K. dermatologists.
Heeding that call, Dr. Li and colleagues sent an email containing a 10-question online survey to members of the BAD and the British Society for Medical Dermatology. Questions covered familiarity with antipsychotics and frequency of prescribing, confidence around antipsychotics, and current training and future needs. Responses were received between February through April 2021.
Among the 79 respondents, 51 (65%) were consultants and 20 (25%) were dermatology registrars, with the remainder dermatology clinical fellows, foundation doctors, or other doctors. A total of 31 respondents had an average of more than 50 visits with patients per week, 18 had an average of 41-50 patient visits, and 13 had an average of 31-40 visits per week; the remainder had an average of 11-30 visits per week.
Most of the respondents (39) said they had seen 2-5 patients with psychodermatology conditions in the last 6 months, while 17 said they had seen 1 patient, 13 said they had seen more than 10 patients, and 6 said they had seen 6-10 patients (4 had seen none and 1 could not remember).
The most commonly prescribed antipsychotics for psychodermatology patients in the past 6 months were risperidone (Risperdal; prescribed by five respondents), followed by olanzapine (Zyprexa; by four respondents). Seventy respondents had not prescribed any antipsychotics.
Asked about how confident they felt about prescribing antipsychotic medication for patients with delusional infestation, 8 (10%) said they were happy to prescribe independently, while 42 (54%) said they were not at all confident. Another 10 (13%) respondents said they would be happy to prescribe the medications after liaising with a dermatology colleague, while 17 (22%) said they would prefer to consult with the psychiatry team.
The most common barrier to prescribing antipsychotic medications was a lack of experience with the drugs, cited by 66 respondents, followed by concerns over drug monitoring, cited by 43 respondents.
In addition, 42 respondents highlighted concerns over adverse effects, 36 cited lack of experience in psychodermatology clinics, and 19 cited lack of experience in discussing psychodermatologic conditions with patients. Other barriers mentioned by the respondents included difficulties with patient acceptance of a psychiatric medication prescribed by a dermatologist.
An audience member went further, saying that clinicians have been told not to “confront” such patients and that the temptation is therefore to cloak the discussion of antipsychotics in nonthreatening language so that it is more acceptable to the patient.
However, under the U.K. system, a letter with the results of the consultation, including information that an antipsychotic has been prescribed, must be sent to the patient’s family doctor along with a copy that goes to the patient. “The situation is almost impossible,” the audience member said, adding that there “must be some arrangement where in certain circumstances dermatologists could be allowed not to write to the patient” or alternatively, “write an entirely different letter” to the family doctor.
Session cochair Susannah Baron, MD, a consultant dermatologist at St. John’s Institute of Dermatology, Guy’s and St. Thomas’ Hospital, London, said that, in these situations, it is “really helpful to talk about doses” with patients.
She explained that she uses the analogy of aspirin, which has different effects depending on the dose given, giving pain relief at high doses but primarily an antiplatelet effect at low doses.
In the case of an antipsychotic, it is helpful to explain to the patient that “you don’t think they’re psychotic, and you’re prescribing it in a very low dose, because what it can do is help with their symptoms,” Dr. Baron added. “You have to be very open because if you’re not, they go to the pharmacy, and the pharmacist says: ‘Why are you on an antipsychotic?’ ”
Further results from the survey revealed that 56 (71%) respondents did not have access to a specialist psychodermatology clinic, whereas 36 (46%) had not yet attended a psychodermatology course.
Despite these responses, 60 (77%) respondents said they would be interested in attending a training course for prescribing antipsychotics, which included all 20 of the registrars who took part in the survey. a psychodermatologist at Frimley Health Foundation Trust, Windsor, England, and lead author of the BAD guidelines, commented from the audience that the survey results were “sort of what we expected.”
She explained that the intention of the authors when developing the guidelines “was to be able to help our junior colleagues and our peers to be able to feel competent to discuss antipsychotics with patients with delusional infestation and also initiate management.”
Dr. Ahmed added: “Why we’re encouraging our colleagues to prescribe antipsychotics is the longer you leave this type of psychotic illness untreated, the worse the prognosis.”
No funding or relevant financial relationships were declared.
A version of this article first appeared on Medscape.com.
AT BAD 2022