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Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
12:45

Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Published on: December 11, 2017

Long-term effects of upgrading from right ventricular pacing to cardiac resynchronization therapy in patients with

Paul W X Foley1, Sahrkaur A Muhyaldeen, Shajil Chalil

  • 1Department of Cardiology, University of Birmingham, Good Hope Hospital, Rectory Road, Sutton Coldfield, Birmingham, West Midlands B75 7RR, UK.

Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology
|March 25, 2009
PubMed

Insights

Upgrading right ventricular (RV) pacing to cardiac resynchronization therapy (CRT) in heart failure patients yields outcomes comparable to de novo CRT. Both approaches show similar mortality, morbidity, and symptomatic improvements.

Area of Science:

  • Cardiology
  • Medical Devices
  • Heart Failure Management

Background:

  • Right ventricular (RV) pacing is a common treatment for bradycardia but can lead to dyssynchrony and heart failure.
  • Cardiac resynchronization therapy (CRT) aims to improve cardiac function by resynchronizing ventricular contraction.

Purpose of the Study:

  • To evaluate the efficacy and safety of upgrading from RV pacing to CRT compared to de novo CRT in heart failure patients.

Main Methods:

  • A comparative study involving patients with heart failure undergoing either de novo CRT or upgrading from RV pacing to CRT.
  • Clinical endpoints including all-cause mortality, cardiovascular events, and heart failure hospitalizations were assessed over a maximum follow-up of 7.7 years.

Main Results:

  • No significant differences were observed in clinical endpoints between the de novo CRT and upgrade-to-CRT groups.
  • Both groups demonstrated comparable improvements in NYHA class, 6-minute walking distance, quality of life, and left ventricular remodeling (LVEF and end-systolic volume).

Conclusions:

  • Upgrading RV pacing to CRT in heart failure patients offers similar long-term mortality and morbidity risks as de novo CRT.
  • Symptomatic benefits and reverse remodeling are comparable between the two strategies, suggesting upgrading is a viable option.
Abstract

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