title: Long-term prognostic significance of atrioventricular block in inferior acute myocardial infarction.
abstract: Among 477 consecutive patients admitted for inferior acute myocardial infarction (AMI), 2nd or 3rd degree atrioventricular (AV) block developed in 88 (20%). Compared with the 359 without AV block, these 88 patients presented a higher incidence of Killip class greater than 1 (52% vs 28%, P less than 0.001), pericarditis (30% vs 17%, P less than 0.01), atrial fibrillation (26% vs 11%, P less than 0.01), complete bundle branch block (12% vs 4%, P less than 0.01) and in-hospital mortality (24% vs 4%, P less than 0.001). The 3-year post-hospital mortality was not significantly different in the two groups (12% vs 15%). Among the 88 patients with AV block, those who died at hospital were older (66 +/- 11 vs 59 +/- 11 years, P less than 0.05), had a higher incidence of Killip class greater than 1 (86% vs 42%, P less than 0.001) and bundle branch block (29% vs 7%, P less than 0.05). Thus, patients with inferior AMI who developed AV block had a poor hospital outcome but long-term prognosis was similar in hospital survivors who had AV block and in those without this complication.
authors: Department of Medicine, University Hospital, Liège, Belgium.
authors: C
authors: C
authors: Dubois
authors: L A
authors: LA
authors: Piérard
authors: J P
authors: JP
authors: Smeets
authors: J
authors: J
authors: Carlier
authors: H E
authors: HE
authors: Kulbertus
mesh_terms: D000368:Aged; D005260:Female; D005500:Follow-Up Studies; D006327:Heart Block / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications*; D011379:Prognosis