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BACKGROUND We conducted a study of chronic therapy with flecainide versus placebo in a small group of LQT-3 patients with the DeltaKPQ deletion to evaluate the safety and efficacy of flecainide in this genetic disorder. In vitro studies have shown that flecainide provides correction of the impaired inactivation associated with the DeltaKPQ deletion. (More)
BACKGROUND Liver transplantation (LTx) is a life-saving treatment of end-stage liver disease. Cardiac complications including heart failure (HF) are among the leading causes of death after LTx. THE AIM The aim is to identify clinical and echocardiographic predictors of developing HF after LTx. METHODS Patients who underwent LTx at the University of(More)
OBJECTIVES We sought to assess the relation between myocardial ischemia during stress echocardiography and major events in patients with implantable cardioverter-defibrillator (ICD). BACKGROUND The association of myocardial ischemia with subsequent ICD therapy and mortality is unknown. METHODS We studied 90 patients (age 65 +/- 13 years, 27 women) with(More)
OBJECTIVE The purpose of this study was to determine the type of arrhythmias induced with therapeutic versus diagnostic transthoracic low-frequency ultrasound (TLFUS) transducers in the presence of intravenous microbubbles. METHODS Intravenous perfluorocarbon-exposed sonicated dextrose albumin (PESDA) microbubbles were infused or given as a bolus(More)
BACKGROUND The Long QT Syndrome (LQTS) is a genetic channelopathy with life-threatening implications. The LQT3 form of this disease is caused by mutations of the SCN5A sodium-channel gene. A specific mutation, SCN5A:DeltaKPQ, is associated with repetitive reopenings of the sodium channel and prolonged inward current. This dominant inward current is manifest(More)
Coronary artery disease is the underlying etiology of left ventricular dysfunction and arrhythmias in most patients who receive implantable cardioverter defibrillators (ICDs). The aim of this study was to assess the safety and feasibility of dobutamine stress echocardiography (DSE) in patients with an ICD. DSE (dobutamine up to 50 microg/kg/min, atropine up(More)
Computerized physician order entry (CPOE) is a disruptive technology but holds great promise for reducing medical errors, improving workflow and in the long run, producing cost-savings. However, many studies have reported significant physician resistance to implementing CPOE. In this manuscript we present a two-prong strategy for quick implementation of(More)
BACKGROUND It was hypothesized that a wall motion score (WMS) of <or=16% determined by chordal analysis (WMS=% of chords analyzed with normal or hyperkinetic motion) from a right anterior oblique (RAO) left ventriculogram would be a predictor for perioperative (30-day or in-hospital) or long-term mortality in patients from the CABG-Patch Trial. METHODS(More)
In this paper, we present a method for incorporating temporal smoothing (TS) into the estimate of epicardial potentials from body surface potential data. Our algorithm employs a different spatial smoothing parameter, chosen by the composite residual error and smoothing operator criteria, at each time step in the sequence. The total spatial smoothing term is(More)
We investigated the use of transvenous (TV) and transmyocardial (TM) pacemakers in the emergency department (ED) in 54 adult patients (42 men and 12 women) with bradyasystolic cardiac arrest. Down time prior to cardiopulmonary resuscitation (CPR) was 4.8 +/- 4.3 minutes. Time in the ED prior to pacer insertion was 26.9 +/- 17.7 minutes. Electrical capture(More)