Chloroquine Cardiotoxicity Leading to Cardiogenic Shock.

A patient with a history of heart block and longstanding chloroquine use presented in cardiogenic shock refractory to medical therapy and mechanical circulatory support. Autopsy supported antimalarial-induced cardiomyopathy (AMIC). Progression of AMIC may be halted with early recognition and cessation of antimalarial therapy, highlighting importance of screening and timely diagnosis. (Level of Difficulty: Beginner.).