Shock After Successful Primary Percutaneous Coronary Intervention for Ventricular Fibrillation

A 63-year-old man was admitted to our emergency department with an episode of sudden cardiopulmonary arrest attributable to ventricular fibrillation (Figure 1). Before admission, cardiopulmonary resuscitation by a bystander and emergency personnel with two 200-J direct-current shocks was conducted; thereafter, spontaneous circulation returned. The patient’s vital signs and level of consciousness were normal at admission. ECG at admission revealed a sinus rhythm with ST elevation in leads aVR and V1, and ST depression in leads II, III, aVF, and V3 through 6. Echocardiography …