Retrospective analysis of cases with Stevens-Johnson syndrome/toxic epidermal necrolysis: A case series of 20 patients

Background: Stevens-Johnson syndrome (SJS)/ toxic epidermal necrolysis (TEN) are rare, acute, severe cutaneous hypersensitivity reactions usually triggered by medications. They are classified by the extent of the detached skin surface area. Objective: We aimed to retrospectively evaluate the sociodemographic, clinical, therapeutic, and prognostic characteristics of SJS/TEN cases diagnosed between January 2015 and December 2020 in our centre. Materials and Methods: All the data regarding patient characteristics were obtained retrospectively. The SCORe of Toxic Epidermal Necrolysis (SCORTEN) was used to predict disease severity and mortality rates. Results: Out of 20 patients (14 females, 6 males), eight (40%) were evaluated as TEN, three (15%) as SJS/ TEN overlap, and nine (45%) as SJS. The mean age was 39.2 +/- 27.92 years. A higher frequency of systemic antibiotic use was found in cases of SJS/TEN overlap or TEN compared to SJS cases during patients' follow-up after the diagnosis (P = 0.006). The most common responsible drug was allopurinol (25%). While the estimated mortality in patients with SCORTEN values of 4 and 5 was 58.3% and 90.0%, the mortality observed in our cohort was 50% and 100%, respectively. In terms of complications, ocular problems were the most common ones. Ophthalmic sequelae were observed in 15 patients during the follow-up period, the most common belonging to the cornea. Conclusion: In conclusion, early diagnosis, immediate discontinuation of suspected drugs, and good clinical care are among the most crucial treatment steps in the treatment of SJS/TEN. In addition, multidisciplinary management of the disease is vital in preventing the development of long-term sequelae in survivors.