Upper limit of vulnerability reliably predicts the defibrillation threshold in humans.
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چکیده
منابع مشابه
Upper limit of vulnerability reliably predicts the defibrillation threshold in humans.
BACKGROUND The upper limit of vulnerability is the stimulus strength above which electrical stimulation cannot induce ventricular fibrillation even when the stimulus occurs during the vulnerable period of the cardiac cycle. The purpose of this study was to test the hypothesis that the upper limit of vulnerability can accurately predict the defibrillation threshold in patients undergoing implant...
متن کاملUpper Limit of Vulnerabilit Reliably Predicts the Defibrillation Threshold in Humans
Background The upper limit of vulnerability is the stimulus strength above which electrical stimulation cannot induce ventricular fibrillation even when the stimulus occurs during the vulnerable period of the cardiac cycle. The purpose of this study was to test the hypothesis that the upper limit of vulnerability can accurately predict the defibrillation threshold in patients undergoing implant...
متن کاملRelation between upper limit of vulnerability and defibrillation threshold in humans.
BACKGROUND In the canine model, an upper limit of shock strength exists that can induce ventricular fibrillation during the vulnerable period of the cardiac cycle. This shock strength (the upper limit of vulnerability) closely correlates with the defibrillation threshold and supports the "upper limit of vulnerability" hypothesis of defibrillation. It is not known whether an upper limit of vulne...
متن کاملComparison of the defibrillation threshold and the upper limit of ventricular vulnerability.
To examine the relationship between the defibrillation threshold and the strength of shocks that induce ventricular fibrillation during the vulnerable period, we determined the defibrillation threshold in 22 open-chest dogs using epicardial defibrillation electrodes with the cathode at the ventricular apex and the anode at the right atrium. We also determined whether there was an upper limit of...
متن کاملEffects of lidocaine on relation between defibrillation threshold and upper limit of vulnerability in open-chest dogs.
BACKGROUND The purpose of the present study was to test the effects of lidocaine on the relation between the defibrillation threshold and the upper limit of vulnerability. METHODS AND RESULTS The shock strength associated with a 50% probability of successful defibrillation (DFT50) and the shock strength associated with a 50% probability of reaching the upper limit of vulnerability (ULV50) wer...
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ژورنال
عنوان ژورنال: Circulation
سال: 1994
ISSN: 0009-7322,1524-4539
DOI: 10.1161/01.cir.90.5.2308