[Cardiac arrest in acute myocardial infarction during hospitalization].

Cases of acute myocardial infarction (AMI) complicating cardiac arrest (CA) admitted to collaborative study group since 1972 were presented, and CA cases of 1984-1985 were analyzed. The incidence of CA were 3.7-4.7%, and fatality were 72.4-83.3% in recent years. In 118 cases of CA. 37 were primary ventricular fibrillation (VF), 33 of them occurred within 48 hours after admission, 54.1% were resuscitated. 30 were secondary VF, 27 occurred 48 hours after admission, 16.7% were resuscitated. 24 cases were ventricular standstill, 12 occurred following sinus bradycardia, sinoatrial block or atrioventricular block, 5 recovered by temporary pacing. 27 cases were undetermined because of no electrocardiographic monitoring available during onset of CA.