Review of culprit drugs associated with patients admitted to the burn unit with the diagnosis of Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis Syndrome.

PURPOSE: Stevens-Johnson Syndrome (SJS) and Toxic Epidermal Necrolysis Syndrome (TENS) are severe and potentially lethal adverse drug reactions characterized by acute inflammation of the skin, mucous membranes, and ocular surface that typically occurs within weeks of a culprit drug ingestion. The purpose of this study is to report a retrospective trend analysis of SJS spectrum diagnoses and associated culprit drugs in patients admitted to the Loyola University Medical Center (LUMC) Burn Unit, the major referral center in the Chicagoland region for patients with SJS disease spectrum. METHODS: The electronic medical records (EMR) of 163 patients with a diagnosis of SJS/TENS admitted to the LUMC Burn Unit from 2000 to 2019 were reviewed. Clinical data in addition to the well-established algorithm of drug causality for epidermal necrolysis (ALDEN) allowed us to identify the single most probable culprit drug in 131 cases. RESULTS: From 2000 to 2019, the most common spectrum classification was TENS (48.1%), followed by SJS (33.6%) and SJS-TEN Overlap Syndrome (18.3%). Anticonvulsants were found to be the most probable culprit class in 30% of cases followed by Trimethoprim-Sulfamethoxazole in 19% of cases. Beta-lactams were the most probable culprit class in 11% of cases while NSAIDs and allopurinol were each the most probable culprit class/drug in 8.4% of cases. CONCLUSIONS: This is one of the largest single center series of SJS/TENS cases in the United States. Further study into culprit drug distribution by region as well as continuous monitoring of trends is crucial in order to advise prescribing practices.