title: Clinical setting and prognostic significance of high degree atrioventricular block in acute inferior myocardial infarction: a study of 144 patients.
abstract: High degree AV block occurred in 144 of 843 patients consecutively admitted because of acute inferior myocardial infarction and was associated with more extensive myocardial damage and a higher mortality rate, as compared to those without AV block. Patients with power failure at the time of appearance of high degree AV block and a ventricular rate of less than 50 per minute, seemed to profit from pacemaker therapy. By contrast in patients with power failure and a ventricular rate of more than 50 per minute, pacemaker insertion did not affect immediate prognosis.
mesh_terms: D000208:Acute Disease; D000368:Aged; D004562:Electrocardiography; D005260:Female; D006327:Heart Block / Q000150:complications* / Q000401:mortality / Q000628:therapy; D006339:Heart Rate; D006439:Hemodynamics; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications* / Q000401:mortality; D010138:Pacemaker, Artificial; D011379:Prognosis; D013997:Time Factors