Effects of Anti-arrhythmic Drugs for Pacing Threshold and Defibrillation Threshold
نویسندگان
چکیده
منابع مشابه
Defibrillation Threshold for Implantable Defibrillators
Background The time constant of truncated exponential pulses used with implantable defibrillators is determined by the output capacitor size and defibrillation pathway resistance. The optimal capacitor size is unknown. Methods and Results This study compared defibrillation threshold (DFT) for standard 120-,uF capacitors (DFT120) and smaller 60-,gF capacitors (DFT60) at implantation of cardiover...
متن کاملElevation 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 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.
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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 کاملElevated Defibrillation Threshold: Are Defibrillation Vectors Important?
The evaluation of the defibrillation threshold (DFT) is common after the implantation of implantable cardioverter defibrillator (ICD) devices. The goal of this standard of care is to achieve successful defibrillation of ventricular fibrillation. In patients with elevated defibrillation thresholds, alternative techniques are required to correct the situation. We describe a case in which an uncom...
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ژورنال
عنوان ژورنال: Journal of Arrhythmia
سال: 2011
ISSN: 1880-4276
DOI: 10.1016/s1880-4276(11)80052-9