Single-Chamber versus Dual-Chamber Pacing for High-Grade Atrioventricular Block

Single-chamber versus dual-chamber pacing for high-grade atrioventricular block.

BACKGROUND In the treatment of atrioventricular block, dual-chamber cardiac pacing is thought to confer a clinical benefit as compared with single-chamber ventricular pacing, but the supporting evidence is mainly from retrospective studies. Uncertainty persists regarding the true benefits of dual-chamber pacing, particularly in the elderly, in whom it is used less often than in younger patients...

Physiologic dual chamber pacing in radiation-induced atrioventricular block.

Dual chamber cardiac pacing in children: Single chamber pacing dual chamber sensing cardiac pacemaker or dual chamber pacing and sensing cardiac pacemaker?

BACKGROUND Dual chamber pacemakers (single chamber pacing dual chamber sensing cardiac pacemaker (VDD) and dual chamber pacing and sensing cardiac pacemaker (DDD)) are being used frequently in children and adolescents. The aim of this study was to verify the safety and performance of the VDD and DDD pacing systems, and to evaluate the differences between two pacing modes with regard to atrial s...

Single-chamber Versus Dual-chamber Implantable Cardioverter Defibrillators: Do We Need Physiologic Pacing in The Course?

BACKGROUND Many patients with ICD receive different antiarrhythmic drugs (e.g. sotalol, amiodarone, beta-blockers) because of ventricular or atrial tachycardias. These drugs can cause AV-block or chronotropic incompetence resulting in a higher percentage of ventricular pacing. METHODS We analyzed in a retrospective study the impact of DDD(R) versus VVI(R) mode on subjective (NYHA classificati...

Effect of dual chamber pacing on raised plasma atrial natriuretic peptide concentrations in complete atrioventricular block.

Effect ofdual chamber pacing on raised plasma atrial natriuretic peptide concentrations in complete atrioventricular block Atrial natriuretic peptide is released into the circulation in normal humans in situations of increased central blood volume and hence atrial pressure, such as head out immersion in water.' The same stimulus of raised atrial pressure is also responsible for the increased pl...