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  • Title: [High prevalence of 2d and 3d grade atrioventricular block in patients with acute myocardial infarct and right ventricular ischemic involvement].
    Author: Cassin M, Bruno A, Charmet P, Spaziante R, Rellini G, Nicolosi G, Zanuttini D.
    Journal: G Ital Cardiol; 1986 Sep; 16(9):717-21. PubMed ID: 3803795.
    Abstract:
    43 consecutive patients with acute inferior myocardial infarction (IMI) were evaluated with 12-lead electrocardiogram plus four additional right precordial lead V3R, V4R, V5R, V6R and equilibrium gated radionuclide angiography (EGRA) to detect ischemic right ventricular involvement. All patients were continuously monitored on the average 6 days; 11 of 43 patients had an episode of second or third degree atrioventricular block. Ischemic right ventricular involvement was diagnosed by electrocardiographic criteria in 60%, and by scintigraphic criteria in 70% of 43 patients with IMI. Utilization of electrocardiogram and EGRA for diagnosis of right ventricular involvement permit us to identify a subgroup of patients with IMI at high risk of developing second or third atrioventricular block (38% with ecg criteria and 33% with radionuclide criteria respectively) as regards those without right ventricular involvement (6% and 8%).
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