Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Mary R. Olsovsky"'
Publikováno v:
The American Journal of Cardiology. 85:1106-1109
The hemodynamic effects of pacing in patients with congestive heart failure (CHF) remain controversial. Early studies reported that pacing from the right ventricular (RV) apex improved acute hemodynamic parameters in patients with left ventricular sy
Publikováno v:
Journal of the American College of Cardiology. 34:358-362
OBJECTIVES The purpose of this study was to compare transvenous atrial defibrillation thresholds with lead configurations consisting of an active left pectoral electrode and either single or dual transvenous coils. BACKGROUND Low atrial defibrillatio
Publikováno v:
Pacing and Clinical Electrophysiology. 22:165-168
Shock impedance is an important determinant of defibrillation efficacy. Lead configuration, shock polarity, and delivered energy can affect shock impedance, but these variables have not been studied in active can lead systems. The present study was a
Autor:
William Hsu, Douglas J. Lang, Stephen R. Shorofsky, Michael R. Gold, Alan F. Marcovecchio, Mary R. Olsovsky
Publikováno v:
Pacing and Clinical Electrophysiology. 22:179-182
Inappropriate therapies delivered by implantable cardioverter defibrillators (ICDs) for supraventricular arrhythmias remain a common problem, particularly in the event of rapidly conducted atrial fibrillation or marked sinus tachycardia. The ability
Publikováno v:
Journal of Cardiovascular Electrophysiology. 9:350-354
Polarity and Biphasic Defibrillation Thresholds. Introduction: The downsizing of implantable defibrillator pulse generators has made pectoral placement routine. A further reduction of defibrillation thresholds (DFTs) may simplify implantation defibri
Publikováno v:
Journal of Cardiovascular Electrophysiology. 9:240-244
Stability of Defibrillation Thresholds. Introduction: Monophasic defibrillation thresholds rise over time with a variety of lead systems. These chronic changes are attenuated or eliminated by biphasic waveforms, although the effect appears dependent
Autor:
Mary R. Olsovsky, Bruce S. Stambler, Kenneth A. Ellenbogen, Michael K. Belz, David M. Gilligan, Mark A. Wood
Publikováno v:
The American Journal of Cardiology. 78:1289-1292
We studied the effects of edrophonium on sinus cycle length, atrioventricular (AV) nodal fast pathway refractoriness, and AV nodal Wenckebach cycle length in 21 patients with AV nodal reentrant tachycardia (AVNRT) who received edrophonium, and 8 pati
Publikováno v:
Chest. 108:695-700
Background: The clinical consequences of cardiac denervation include the inability of the heart transplant recipient to sense cardiac pain. This is due mainly to interruption of ventricular sympathetic afferents normally responsible for transmission
Publikováno v:
American Heart Journal. 131:1039-1041
Interventricular septal defects (VSDs) are an unfortunate complication of cardiac trauma. Both penetrating and blunt trauma can cause this injury. We report on a patient with a VSD associated with penetrating cardiac trauma. A previously healthy 24-y
Clinical predictors of defibrillation thresholds with an active pectoral pulse generator lead system
Publikováno v:
Pacing and clinical electrophysiology : PACE. 25(4 Pt 1)
Active pectoral pulse generators are used routinely for initial ICD placement because they reduce DFTs and simplify the implantation procedure. Despite the common use of these systems, little is known regarding the clinical predictors of defibrillati