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Biventricular implantation procedures require contrast venography of the coronary sinus. The aim of our study was to evaluate the efficacy and safety of contrast venography obtained by direct manual contrast injection into the guiding catheter, compared with venography obtained after occlusion of the coronary sinus by a Swan–Ganz catheter.Eighty-three patients were randomly assigned to direct or occlusive...
A 78-year-old female with prior atrioventricular junctional ablation for paroxysmal atrial fibrillation and implantation of DDDR pacemaker underwent repair of severe tricuspid insufficiency. Effects of biventricular pacing were tested with temporary wires at the conclusion of cardiopulmonary bypass.An ultrasonic flow probe was placed on the ascending aorta for real time cardiac output measurements...
The beneficial use of biventricular pacing is reported in a patient with end-stage hypertrophic cardiomyopathy, intraventricular conduction delay and echocardiographic evidence of intraventricular dyssyncrony. Marked improvement in clinical status, left ventricular ejection fraction and peak VO2 were observed. As far as we know, this is the first report of a beneficial effect of a biventricular device...
Resynchronisation of intra- and interventricular conduction delay by biventricular pacing has become a proven therapy for selected heart failure patients. We present a case of biventricular pacing, used with great success, as a ‘bail out’ for a patient with refractory congestive heart failure following by-pass surgery.
Previous studies of biventricular (BV) pacing for treatment of heart failure (HF) patients with left bundle branch block (LBBB) evaluated responders to BV pacing with acute transvenous left ventricular (LV) pacing and arterial pulse pressure (PP). The aim of this study was to assess transoesophageal LV pacing in evaluation of the haemodynamic response with a view to upgrading responders from permanent...
Cardiac resynchronisation therapy (CRT) requires a lead advanced through the coronary sinus (CS) to pace the left ventricle (LV). Left atrial far-field signals (LAFFS) may be sensed by the LV lead at the time of implant or after lead dislodgement, and may inhibit ventricular pacing.To assess the incidence of detection of LAFFS>2mV and its correlation with the CS lead position.Data from the first...
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