High defibrillation thresholds: Univariant and multivariant analysis
نویسندگان
چکیده
منابع مشابه
Clinical Characteristics and Outcome of Patients With High Defibrillation Thresholds
Background. Successful defibrillation by an implantable cardioverter-defibrillator (ICD) depends on its ability to deliver shocks that exceed the defibrillation threshold. This study was designed to identify clinical characteristics that may predict the finding of an elevated defibrillation threshold and to describe the outcome of patients with high defibrillation thresholds. Methods and Result...
متن کاملAzygos Vein Coil: Bailout Strategy for High Defibrillation Thresholds
We describe an unusual case in which an implantable cardioverter-defibrillator failed to defibrillate the patient during testing at implant; rather, an adequate safety margin was achieved only after introduction of a shocking coil into the azygos vein. The azygos vein is an attractive extracardiac target for placement of a shocking coil, as it provides an ideal shock vector. Tools designed for ...
متن کاملChronic Defibrillation Thresholds in Nonthoracotomy Implantable Defibrillator
Background To establish the chronic stability of defibrillation thresholds (DFTs) in a transvenous cardioverter/defibrillator (TCD) system, we studied 37 consecutive patients with TCD systems implanted for >6 months. Methods and Results DFT was measured by a step-down method at implant and 2 and 6 months later. The mean ejection fraction was 34.5±14.3%. Coronary artery disease with previous myo...
متن کاملRegional gap junction inhibition increases defibrillation thresholds.
It is clear that ischemia inhibits successful defibrillation by altering regional electro-physiology. However, the exact mechanisms are unclear. This study investigated whether regional gap junction inhibition increases biphasic shock defibrillation thresholds (DFT). Sixteen swine were instrumented with a mid-left anterior descending (LAD) perfusion catheter for regional infusion of 0.5 mM/h he...
متن کاملClinical characteristics and outcome of patients with high defibrillation thresholds. A multicenter study.
BACKGROUND Successful defibrillation by an implantable cardioverter-defibrillator (ICD) depends on its ability to deliver shocks that exceed the defibrillation threshold. This study was designed to identify clinical characteristics that may predict the finding of an elevated defibrillation threshold and to describe the outcome of patients with high defibrillation thresholds. METHODS AND RESUL...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 1991
ISSN: 0735-1097
DOI: 10.1016/0735-1097(91)91311-2