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  • Title: [Occurrence of repetitive ventricular responses in programmed right ventricular stimulation].
    Author: Neugebauer A, Trenckmann H, Günther K.
    Journal: Z Gesamte Inn Med; 1982 Sep 15; 37(18):583-6. PubMed ID: 6184895.
    Abstract:
    In 30 patients with various disturbances of rhythm (17 males, 13 females) at the age of 16-72 years during a conduction analysis a programmed stimulation relating to the right ventricle was carried out and the occurrence of repetitive ventricular responses was evaluated. 9 patients did not show any repetitive ventricular responses. In 14 patients with various disturbances of rhythm a V3-phenomenon was evoked which as an interventricular reentry is a physiological phenomenon. In 6 patients with myocardial scar and extreme bradycardia, respectively, apical torsades were observed via a V3-phenomenon with transition into an intraventricular reentry (one persisting interventricular reentry) and like 2 provoked ventricular tachycardias (one with, one without observation of apical torsades) were valuated as a reference to the electric instability of the ventricular myocardium. The obtainability of apical torsades as well as of V3 was possible only in a minimal retardation of the conduction to His's bundle depending upon the frequency of stimulation and precociousness of S2. Only in a transition into an intraventricular reentry apical torsades speak for, non-evokable apical torsades do not speak against an increased electric instability of the ventricular myocardium, but for existing and not existing, respectively, suitable distal conduction conditions to the stimulation reentry.
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