A 5 Year Retrospective Study on the Clinical Patterns and Treatment Outcomes of Severe Cutaneous Adverse Drug Reactions (SCARS) in Hospital Tengku Ampuan Rahimah, Malaysia

ABSTRACT

Introduction: Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN) , and drug reaction with eosinophilia and systemic symptoms (DRESS) are severe cutaneous adverse drug reactions (SCARs) related to a variety of medications. Objectives: We aim to document the epidemiological features, the causative drugs and clinical outcomes of patients with SCARs treated in Hospital Tengku Ampuan Rahimah (HTAR) between January 2009 and December 2013. Materials & Methods: A retrospective review of the data of all patients with SJS, TEN and DRESS treated from January 2009 to December 2013 was retrieved and analyzed. Results: A total of 33 SCARs patients were seen, which included SJS (25), TEN (3) and DRESS (5). The mean age was 42.8 years. The male-to-female ratio was 1.361. Allopurinol (33.3%) was the commonest offending drug, followed by antibiotics (30.3%), anticonvulsants (12.1%), non-steroidal anti-inflammatory drugs (12.1%) and traditional medications (6.1%). Eighty percent of SJS and all TEN and DRESS patients were given systemic corticosteroids. One patient with TEN (33.3%) was concurrently given intravenous immunoglobulin. All SJS patients survived. Two patients with TEN (66.7%) and one patient with DRESS (20%) succumbed due to sepsis. Conclusion: The commonest drugs implicated for SCARs in our study were allopurinol and antibiotics. Inappropriate use of these drugs leads to increased risk of SCARs. Early recognition and prompt treatment of patients with SCARs may improve their outcome.