When evaluating patients with atopic dermatitis (AD), it is essential to do a full body exam, rather than simply asking patients to roll up their sleeves to examine the antecubital fossa, advised Jonathan I. Silverberg, MD, PhD, MPH.
Dr. Silverberg, director of clinical research in the department of dermatology at George Washington University, Washington, recommends that patients with AD should be asked to gown up for clinical encounters so that their body surface area (BSA) can be assessed. “Whether you use the palmar method or use the rule of nines (a chart that divides the body into sections representing 9% BSA) ... you need to look at BSA because lesion severity in a localized area doesn’t tell you the whole story,” he said during the Revolutionizing Atopic Dermatitis virtual symposium.
Dr. Jonathan I. Silverberg
He described his anecdotal experiences with patients objecting to being asked by office staff to wear a gown for exams, who often say they have never been asked by a doctor to do so, and often tell him that with previous exams, they were asked to roll up their sleeves only. But there are many patients with AD who do not have flexural disease “and if they just roll up their sleeve for an exam, you would miss the fact that they might be covered over their trunk or legs or other parts of the body,” Dr. Silverberg said. “Make a concerted effort to look not just at lesion severity but to assess body surface area. We need to assess both.”
Capturing the patient perspective
From a patient-reported standpoint, Dr. Silverberg favors asking patients to verbally rate the severity of their disease. Clear or almost clear? Mild, moderate, or severe? “This approach correlates beautifully with validated outcome measures for AD,” he said.
“You could use a numeric rating scale (NRS) for itch, pain, or sleep disturbance. I would argue that it’s best to use a 7-day recall period; 24 hours is too short. They may be clear yesterday but may have been bad 3 days earlier.” The NRS will soon be a reportable item on the AAD DataDerm Clinical Registry, he said, but noted that “the NRS by itself does not accurately predict the full severity of AD.”
A tool he finds useful is the Validated Investigator Global Assessment for Atopic Dermatitis (vIGA-AD), which was developed in 2017 by an international panel of experts. “It’s free, feasible to use, and a great option for clinical practice.” Dr. Silverberg said. “It’s highly clinically relevant, but it doesn’t take into account BSA. So, BSA is a separate tool that you want to use as well.”
Another tool he mentioned is the Atopic Dermatitis Control Tool (ADCT), developed by industry in 2018. It uses six questions about AD control intended to be used during a 1-week recall period.
“To maximize efficiency, consider having patients complete patient-reported outcomes through patient portals prior to the office visit,” he advised. “Collecting this information prior to the encounter can speed up the clinical encounter and improve quality of care.”
Dr. Silverberg disclosed that he is a consultant to numerous pharmaceutical companies, and receives fees for non-CME/CE services from Eli Lilly, Leo Pharma, Pfizer, Regeneron, and Sanofi Genzyme, as well as contracted research fees from Galderma.