A 56-year-old-man presented with syncope and torsades de pointes secondary to methadone-induced QT prolongation. After transition from methadone to buprenorphine, a partial mu-opiate-receptor agonist and a kappa-opiate-receptor antagonist, the QT normalized and ventricular arrhythmias resolved. Buprenorphine should be used for opiate dependence and chronic pain in patients with methadone-induced QT prolongation and as first line therapy in patients with risk factors for torsades de pointes.

Takotsubo (stress induced) cardiomyopathy is also known as broken heart syndrome or transient left ventricular apical ballooning syndrome. The clinical presentation, which mimics acute myocardial infarction, is preceded by intense emotional or physical stress. Recurrence of apical ballooning syndrome seems to be rare. We present a case of recurrent takotsubo cardiomyopathy precipitated by relatively mild physical stress. There was full recovery with conservative management. This suggests that there are presently unknown patient-specific characteristics that predispose patients to takotsubo cardiomyopathy.

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