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  • Title: Ventricular tachycardia associated with acute myocardial infarction--features, therapeutic effect and prognosis.
    Author: Hayakawa H, Katoh T, Nejima J, Iida K, Tanaka K, Takano T.
    Journal: Jpn Circ J; 1985 Mar; 49(3):362-9. PubMed ID: 3981794.
    Abstract:
    This study was performed to delineate the precise features and the treatment of ventricular tachycardia (VT) with acute myocardial infarction (AMI). Results indicate: 1) the incidence of VT in 310 AMI patients was 16.1% (50 patients); 2) the higher incidence of ventricular fibrillation and mortalities were observed in VT group compared with non-VT group; 3) the incidence of VT was higher in inferior infarction group (21.0%) than anterior group (13.1%); 4) more frequent VT were seen in patients with more severe heart failure; 5) two peaks of VT occurrence, on the first day and in the 4th week after the onset of AMI, were recognized especially in anterior infarction group; 6) supraventricular arrhythmias were more frequent than ventricular premature beats during one minute preceding VT; 7) the successful termination of VT was achieved in 63.9% of episodes by thump-version, 61.5% by lidocaine, 66.7% by disopyramide and 100% by mexiletine; 8) prophylactic effect on VT by class Ia antiarrhythmic agents seemed stronger than others; 9) IABP was effective to prevent VT in some cases; 10) poor prognosis was determined by frequent and later onset of VT, and combination of severe heart failure.
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