Shark fin sign: A rare EKG finding in a patient with Takotsubo cardiomyopathy from influenza A infection

Abstract

Key Clinical Message This case demonstrated the rare “shark fin” ECG pattern, an ST‐segment elevation typically seen in acute myocardial infarction. We reported a case of takotsubo cardiomyopathy secondary to influenza A infection with multiple organ failure, showing the shark fin sign and resulting in in‐patient mortality and various complication.

Keywords

• cardiogenic shock
• influenza A infection
• shark fin ECG
• Takotsubo cardiomyopathy