Results 201 to 210 of about 1,229,815 (249)

Decline in Defibrillation Thresholds

Pacing and Clinical Electrophysiology, 1993
Much research has been done to lower defibrillation thresholds (DFT) through improved waveforms and electrodes. We hypothesized that DFTs are declining steadily, as did pacing thresholds. We performed a meta‐analysis of 105 reports of DFTs from 58 articles and abstracts published from 1973 to 1991.
M W, Kroll, K M, Anderson, C G, Supino, T P, Adams   +3 more
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Transvenous Biventricular Defibrillation Can Improve Defibrillation Threshold

Pacing and Clinical Electrophysiology, 2004
A case report of a patient with a high defibrillation threshold at initial implantation that was improved by the insertion of a shocking coil in the left lateral cardiac vein is discussed.
Jeffrey S, Snow, Anders, Larsen, Todd J, Cohen   +2 more
openaire   +2 more sources

Defibrillation Thresholds in Hypertrophic Cardiomyopathy

Journal of Cardiovascular Electrophysiology, 2010
Defibrillation threshold (DFT) testing is performed in part to ensure an adequate safety margin for the termination of spontaneous ventricular arrhythmias. Left ventricular mass is a predictor of high DFTs, so patients with hypertrophic cardiomyopathy (HCM) are often considered to be at risk for increased defibrillation energy requirements.
Ernest M, Quin, Frank A, Cuoco, Matthew S, Forcina, Jason B, Coker, Robert H, Yoe, William H, Spencer, Valerian L, Fernandes, Christopher D, Nielsen, J Lacy, Sturdivant, Robert B, Leman, J Marcus, Wharton, Michael R, Gold   +11 more
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Management of high defibrillation threshold

Expert Review of Cardiovascular Therapy, 2008
The implantable cardioverter defibrillator (ICD) has become the primary therapy for the treatment of potentially lethal ventricular arrhythmias. Ventricular arrhythmias encompass a spectrum of rhythm disturbances ranging from the occasional monomorphic ventricular premature complex to the almost universally fatal ventricular fibrillation.
Eric R, Uyguanco, Aaron, Berger, Adam S, Budzikowski, Moshe, Gunsburg, John, Kassotis   +4 more
openaire   +2 more sources

Myocardial stunning following defibrillation threshold testing

Journal of Interventional Cardiac Electrophysiology, 2007
Implantable cardioverter-defibrillators (ICDs) have a proven mortality benefit in appropriately selected people. Several retrospective studies, though, have postulated that appropriate ICD therapy may lead to fatal, pulseless electrical alternans (PEA).
Michael, Mollerus, Leslee, Naslund
openaire   +2 more sources

The Defibrillation Threshold

1996
EFFICACY of implantable cardioverter defibrillator therapy is critically dependent on the ICD’s ability to terminate ventricular tachycardia and ventricular fibrillation in a variety of clinical circumstances. To ensure that a device is reliable, adequate testing procedures are required at the time of the implant to determine effective defibrillation ...
Igor Singer, Douglas Lang
openaire   +1 more source

Ventricular defibrillation thresholds with capacitor discharge

Medical & Biological Engineering & Computing, 1979
By means of a selfadjusting experimental protocol based on the evaluation of the cardiac impedance, peak current thresholds were determined to defibrillate canine hearts with transventricular capacitor discharges. From 346 successful defibrillations performed on 20 mongrel dogs, an average value of 0·82 A/kg (s.d.=0·3) was found.
M R, Armayor, G, Savino, M E, Valentinuzzi, O E, Clavin, J E, Monzón, M T, Arredondo   +5 more
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Elevated Defibrillation Threshold with Venlafaxine Therapy

Pharmacotherapy: The Journal of Human Pharmacology and Drug Therapy, 2004
Depression is a common comorbidity in patients with heart failure or implantable cardioverter‐defibrillators (ICDs). A 35‐year‐old woman with depression, nonischemic cardiomyopathy, and a history of cardiac arrest had an ICD implanted. During initial testing, the device failed to internally defibrillate the patient.
Cynthia A, Carnes, Kerry K, Pickworth, Nicholas A, Votolato, Subha V, Raman   +3 more
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Defibrillation Threshold Testing: Tradition or Necessity?

Pacing and Clinical Electrophysiology, 2009
Implantable cardioverter defibrillators (ICDs) have become an essential tool for primary and secondary prevention of sudden cardiac death. Traditionally, defibrillation threshold (DFT) testing is part of the “lege artis” ICD implantation. Taking into consideration that the absolute mortality reduction in primary prevention trials is estimated around 8%
Christof, Kolb, Stylianos, Tzeis, Bernhard, Zrenner   +2 more
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Long‐Term Stability of Defibrillation Thresholds with Intrapericardial Defibrillator Patches

Pacing and Clinical Electrophysiology, 1993
From March 1982 to May 1, 1992, 105 consecutive patients underwent initial implant of cardioverter defibrillators (ICD) at our institution. Twenty‐nine patients (23 male and 6 female, average ejection fraction 32.24%) with ICD systems implanted via thoracotomy and either intra‐ or extrapericardial patches, had one or more revisions including 56 ...
R, Frame, R, Brodman, S, Furman, J, Gross, S G, Kim, K, Ferrick, J, Roth, I, Hollinger, J D, Fisher   +8 more
openaire   +2 more sources