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Related Concept Videos

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Related Experiment Video

Updated: Jan 20, 2026

Construction of Defined Human Engineered Cardiac Tissues to Study Mechanisms of Cardiac Cell Therapy
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Improving Cardiac Resynchronisation Therapy.

George Thomas1, Jiwon Kim1, Bruce B Lerman1

  • 1Department of Medicine, Division of Cardiology, Cornell University Medical Center New York, US.

Arrhythmia & Electrophysiology Review
|August 30, 2019
PubMed
Summary
This summary is machine-generated.

Cardiac resynchronization therapy (CRT) improves heart failure outcomes by synchronizing left ventricular (LV) contractions. Advances in patient selection, lead placement, and pacing strategies enhance CRT

Keywords:
Heart failureHis bundle pacingbiventricular defibrillatorbiventricular pacemakercardiac resynchronisationleadless pacing

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Area of Science:

  • Cardiology and Cardiovascular Medicine
  • Biomedical Engineering
  • Electrophysiology

Background:

  • Cardiac resynchronization therapy (CRT) is a vital treatment for heart failure with reduced ejection fraction.
  • CRT restores left ventricular (LV) electrical and mechanical synchrony, reducing mortality and improving function.
  • Significant advancements have refined CRT delivery and patient response.

Purpose of the Study:

  • To review advancements in CRT for heart failure with reduced ejection fraction.
  • To highlight strategies for optimizing patient selection and CRT response.
  • To discuss novel pacing techniques and lead placement technologies.

Main Methods:

  • Review of recent literature on CRT advancements.
  • Analysis of improved patient selection criteria for CRT.
  • Examination of new LV lead technologies, imaging, and electrical mapping.
  • Evaluation of alternative pacing strategies like LV endocardial and His bundle pacing.

Main Results:

  • Optimized patient selection increases CRT benefit.
  • Advanced LV lead placement via coronary sinus improves synchrony.
  • Novel pacing strategies expand CRT applicability and efficacy in challenging cases.

Conclusions:

  • Improving CRT outcomes requires precise patient selection and optimized lead placement.
  • Technological and strategic advancements enhance CRT effectiveness for heart failure patients.
  • New pacing methods offer solutions for non-responders and those with complex anatomy.