Chronic Ventricular Pacing with Ventriculoatrial Conduction Versus Atrial Pacing in Three Patients with Symptomatic Sinus Bradycardia
- 1 January 1981
- journal article
- case report
- Published by Wiley in Pacing and Clinical Electrophysiology
- Vol. 4 (1), 100-104
- https://doi.org/10.1111/j.1540-8159.1981.tb03681.x
Abstract
Three patients with symptomatic sinus bradycardia due to sick sinus syndrome were treated with permanent ventricular pacing for periods ranging from 2.5 to 4 years. All three patients had ventriculo-atrial conduction on routine electrocardiography. Although ventricular pacing was effective, they complained of fatigue, lightheadedness, and near syncope. Hemodynamic studies revealed the presence of regular cannon waves in the right atrium as well as in the pulmonary artery wedge pressure curves. Temporary atrial pacing resulted in disappearance of the cannon waves and a significant rise in cardiac output (32-48%). After normal atrio-ventricular conduction was confirmed by rapid atrial stimulation and His bundle electrocardiography, the pacing mode was changed to permanent atrial pacing on demand. The effort tolerance of the patients markedly improved, and the previously mentioned symptoms disappeared. Control hemodynamic studies 9 to 12 months after implantation of the atrial demand pacemaker showed that the improvement in cardiac performance was maintained.Keywords
This publication has 8 references indexed in Scilit:
- Preliminary Experience with the Helifix Electrode for Transvenous Atrial ImplantationPacing and Clinical Electrophysiology, 1979
- Three cases of hypotension and syncope with ventricular pacing: Possible role of atrial reflexesThe American Journal of Cardiology, 1978
- Hemodynamic compromise associated with ventriculoatrial conduction following transvenous pacemaker placementAmerican Journal Of Medicine, 1978
- Atrial pacing from the coronary vein. Ten-year experience in 50 patients with implanted pervenous pacemakers.Circulation, 1978
- Hemodynamic Consequences of Atrioventricular and Ventriculoatrial PacingPacing and Clinical Electrophysiology, 1978
- Clinical use of a new transvenous atrial leadThe American Journal of Cardiology, 1977
- Eine einfach und zuverlässig im Vorhof anzubringende Herzschrittmacher-ElektrodeDeutsche Medizinische Wochenschrift (1946), 1977
- Electrical reversion of cardiac arrhythmias.Heart, 1967