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Updated: Nov 9, 2025

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Is the right ventricular function affected by permanent pacemaker?

Kunal Sinkar1, Neeta Bachani1, Avishek Bagchi1

  • 1Department of Cardiology, Holy Family Hospital, Mumbai, Maharashtra, India.

Pacing and Clinical Electrophysiology : PACE
|April 7, 2021
PubMed
Summary
This summary is machine-generated.

Dual chamber pacemakers can impair right ventricular (RV) function, leading to RV dysfunction within 6 months. This study highlights the need to monitor RV function after pacemaker implantation.

Keywords:
AV blockcardiac pacingechocardiography

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Area of Science:

  • Cardiology
  • Medical Devices
  • Electrophysiology

Background:

  • Right ventricular (RV) pacing's impact on left ventricular (LV) function is known.
  • The direct effects of pacing on RV function require systematic evaluation.

Purpose of the Study:

  • To assess the impact of dual-chamber pacemakers on RV function.
  • To evaluate changes in RV function following pacemaker implantation.

Main Methods:

  • Prospective study of 60 patients with AV block receiving dual-chamber pacemakers.
  • Echocardiography, including 3D RV ejection fraction (RVEF), performed pre-procedure and at 6-month follow-up.
  • Comparison of baseline RV parameters with 6-month post-implantation data.

Main Results:

  • At 6 months, 98.9% of patients were pacemaker dependent.
  • A significant increase in tricuspid regurgitation (TR) and a mean drop of 2.8 ± 5% in RVEF were observed.
  • 38.3% of patients experienced at least a 5% decrease in RVEF, correlating with TR.

Conclusions:

  • Dual-chamber pacemaker implantation can lead to demonstrable RV dysfunction.
  • RV dysfunction is evident as early as 6 months post-implantation in a majority of patients.