Effects of class Ic antiarrhythmic drugs on ventricular fibrillation threshold and defibrillation threshold.
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منابع مشابه
Elevation of ventricular defibrillation threshold in dogs by antiarrhythmic drugs.
Effects of antiarrhythmic drugs upon the threshold delivered energy (TDE) and threshold peak current (TPC) for electrical ventricular defibrillation by damped sinusoidal shocks were investigated in 25 pentobarbital-anesthetized dogs. TDE and TPC were increased by the three antiarrhytmic drugs tested. Bolus injections produced a transient rise and continuous infusions produced a steady rise in d...
متن کاملThe effect of newer antiarrhythmic drugs on defibrillation threshold.
This study was conducted to determine the effects of clofilium phosphate and bretylium tosylate on ventricular defibrillation threshold. Dogs were anesthetized with pentobarbital and subjected to repeated fibrillation-defibrillation episodes. Defibrillation thresholds were determined at 15-min intervals, using underdamped 5--6 msec sinusoidal current shocks, from 30 min before drug injection to...
متن کاملAlteration of defibrillation threshold by antiarrhythmic drugs: a theoretical framework.
Alteration of defibrillation threshold by antiarrhythmic drugs: a theoretical framework" (1981). Weldon School of Biomedical Engineering Faculty Publications. Paper 84.
متن کاملThe effects of ventricular fibrillation duration and site of initiation on the defibrillation threshold during early ventricular fibrillation.
OBJECTIVES The purpose of this study was to determine if the defibrillation threshold (DFT) is lower during the first few cycles of ventricular fibrillation (VF) than after 10 s of VF and, if so, if the effect is caused by local or global factors. BACKGROUND The DFT may be low very early during VF because: (1) for the first few cycles VF arises from a localized region close to a defibrillatio...
متن کاملEffect of atrial fibrillation organization on internal defibrillation threshold.
Aim of the present study is to assess the effect of the organization of atrial fibrillation in the right atrium on the minimum effective cardioversion energy. Thirteen patients were studied, selected a priori for low-energy internal cardioversion (LEIC). LEIC was carried out at increasing energy levels. All patients were monitored by a multipolar basket catheter in basal condition and during ca...
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ژورنال
عنوان ژورنال: Japanese Journal of Electrocardiology
سال: 1993
ISSN: 1884-2437,0285-1660
DOI: 10.5105/jse.13.61