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Can this tool forecast peanut allergies?


 

FROM PAS 2023

Pediatricians may have a new aid to better predict peanut allergies among infants with atopic dermatitis.

Researchers have developed a scorecard to help pediatricians identify and assess the severity of atopic dermatitis in infants of various skin tones and to then predict risk of allergies to peanuts. Their study of the implementation of the scorecard was presented at the Pediatric Academic Societies annual meeting.

Infants with atopic dermatitis or eczema are six times more likely to have an egg allergy and eleven times more likely to have a peanut allergy at age 12 months than are infants without atopic dermatitis.

The scorecard reflects recent directives from the National Institute of Allergy and Infectious Diseases to help combat the public health problem.

“When the NIAID prevention of peanut allergy guidelines first came out, it asked pediatricians to serve as frontline practitioners in implementing them by identifying children at risk for peanut allergy and guiding families on what to do next,” said Waheeda Samady, MD, professor of pediatrics at Northwestern University, Chicago. “The impetus for the study was to further support pediatricians in this role.”

Although pediatricians are trained to identify and even treat mild to moderate cases of atopic dermatitis, little emphasis has gone to categorizing the condition on the basis of severity and to correlating peanut allergy risk.

The predictive scorecard captures 14 images from one infant of mixed race, two White infants, two Black infants, and two Hispanic infants.

To create the card, two in-house pediatric dermatologists assessed 58 images from 13 children and categorized images from 0 (no signs of atopic dermatitis) to 4 (severe signs of atopic dermatitis). After a first pass on categorization, the doctors agreed on 84% of images.

Of 189 pediatricians who used the card, fewer than half reported that they “sometimes,” “very often,” or “always” used the scorecard for atopic dermatitis evaluation. A little fewer than three-quarters reported that their ability to diagnose and categorize atopic dermatitis improved.

“Severity staging of atopic dermatitis is not something that the general pediatrician necessarily performs on a day-to-day basis,” said Kawaljit Brar, MD, professor of pediatrics in the division of allergy and immunology at Hassenfeld Children’s Hospital in New York.

Dr. Brar explained that children who are identified as being at high risk are often referred to specialists such as her, who then perform allergy screenings and can determine whether introduction of food at home is safe or whether office feedings supervised by an allergist are necessary. Researchers have found that early introduction to peanuts for children with moderate to severe atopic dermatitis could prevent peanut allergy.

“This represents a wonderful initiative to educate pediatricians so that they understand which patients require screening for peanut allergy and which patients don’t and can just get introduced to peanuts at home,” Dr. Brar said.

The atopic dermatitis scorecard reflects a growing recognition that varying skin tones show levels of severity incongruously.

“Many of us in clinical practice have recognized that our education has not always been inclusive of patients with varying skin tones,” Dr. Samady said. “When we looked for photos of patients with different skin tones, we simply could not find any that we thought were appropriate. So we decided to take some ourselves, and we’re currently continuing to take photos in order to improve the scorecard we currently have.”

The study was funded by the National Institute of Health and Food Allergy Research and Education. Dr. Samady and Dr. Brar reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

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