Prevalence, risk factors, and mortality outcome in the drug reaction with eosinophilia and systemic symptoms patients with cardiac involvement.

Background: Drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome is a severe cutaneous drug reaction that can affect multiple internal organ systems. Cardiac involvement in DRESS syndrome (CiDs) is uncommon but can be life-threatening.

Objective: To determine the prevalence, risk factors, and mortality outcome of CiDs.