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  • Title: [Relation between spontaneous and electrically inducible ventricular arrhythmias in patients with coronary heart disease].
    Author: Geibel A, Meinertz T, Treese N, Kasper W, Pop T, Zehender M, Hofmann T, Just H.
    Journal: Z Kardiol; 1987 Apr; 76(4):231-8. PubMed ID: 2440195.
    Abstract:
    In a prospective study, 267 patients with invasively diagnosed coronary artery disease were studied by programmed electrical stimulation (PES) and induced ventricular arrhythmias were compared to spontaneous arrhythmias occurring during 24 h Holter registration. In 89 patients (33%) no evidence of myocardial infarction was present, 61 patients (23%) were studied for 6 weeks to 3 months, 36 patients (13%) for 3-6 months and 81 patients (31%) for more than 6 months after myocardial infarction. PES was performed in the right ventricular apex with 1 and 2 extrastimuli during pacing with 100, 120 and 140 beats/min. Endpoint of the study was defined by the induction of 4 repetitive ventricular responses (RVR). Within 72 hours after PES a 24 h Holter registration was performed in all patients. During PES, 15 patients (6%) were not inducible for any RVR. Single RVR (1-2) were induced in 146 patients (55%) and 3-5 RVR in 68 patients (25%). Ventricular tachycardia and ventricular fibrillation were induced in 38 patients (14%); 6 patients showed a sustained, monomorphic tachycardia. Altogether, the incidence of RVR was higher when a history of myocardial infarction was present. With increasing time after infarction the incidence of inducible 3-5 RVR remained stable; however, the number of greater than 6 RVR decreased. During Holter registration, 54/255 patients (21%) showed no spontaneous ventricular arrhythmias, 70 patients (28%) had arrhythmias of Lown-class I/II, 84 patients (33%) of Lown-class III. Complex arrhythmias were observed in 47 patients (18%) (Lown-class IVA: 33 patients, IVB: 14 patients).(ABSTRACT TRUNCATED AT 400 WORDS)
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