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Related Experiment Video

Updated: Jul 12, 2026

Tachycardia-Induced Cardiomyopathy As a Chronic Heart Failure Model in Swine
10:08

Tachycardia-Induced Cardiomyopathy As a Chronic Heart Failure Model in Swine

Published on: February 17, 2018

Left ventricular pacing site and timing optimization during biventricular pacing using a multielectrode patch in

George Berberian1, T Alexander Quinn, Santos E Cabreriza

  • 1Department of Surgery, Columbia University, College of Physicians and Surgeons, New York, NY 10032, USA.

The Journal of Thoracic and Cardiovascular Surgery
|August 29, 2007
PubMed
Summary

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Optimizing biventricular pacing for heart failure involves finding the best left ventricular lead site and delay. This study identified two superior pacing strategies, improving cardiac output in animal models.

Area of Science:

  • Cardiology
  • Biomedical Engineering

Background:

  • Biventricular pacing is a key therapy for congestive heart failure and dilated cardiomyopathy.
  • Optimal left ventricular lead placement and timing are crucial for effective biventricular pacing but lack standardized methods.

Purpose of the Study:

  • To establish a technique for optimizing left ventricular pacing site and right ventricular-left ventricular delay in biventricular pacing.
  • To identify superior pacing site/timing combinations for improved cardiac output.

Main Methods:

  • Utilized a swine model with induced complete heart block and right ventricular pressure overload.
  • Employed a multielectrode patch for left ventricular lead placement and tested 54 combinations of pacing sites and delays.
  • Measured cardiac output using an ultrasonic flow probe and analyzed data with mixed model technology.

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Translational Rabbit Model of Chronic Cardiac Pacing
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Translational Rabbit Model of Chronic Cardiac Pacing

Published on: January 6, 2023

Sterile Pericarditis in Aachener Minipigs As a Model for Atrial Myopathy and Atrial Fibrillation
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Sterile Pericarditis in Aachener Minipigs As a Model for Atrial Myopathy and Atrial Fibrillation

Published on: September 24, 2021

Related Experiment Videos

Last Updated: Jul 12, 2026

Tachycardia-Induced Cardiomyopathy As a Chronic Heart Failure Model in Swine
10:08

Tachycardia-Induced Cardiomyopathy As a Chronic Heart Failure Model in Swine

Published on: February 17, 2018

Translational Rabbit Model of Chronic Cardiac Pacing
06:14

Translational Rabbit Model of Chronic Cardiac Pacing

Published on: January 6, 2023

Sterile Pericarditis in Aachener Minipigs As a Model for Atrial Myopathy and Atrial Fibrillation
08:56

Sterile Pericarditis in Aachener Minipigs As a Model for Atrial Myopathy and Atrial Fibrillation

Published on: September 24, 2021

Main Results:

  • Two optimal pacing site/timing pairs were identified: the obtuse margin with a +60 ms delay and the inferolateral wall with a -20 ms delay.
  • These superior combinations resulted in significantly higher mean cardiac output compared to other tested configurations.
  • Pacing the obtuse margin at +60 ms yielded a mean cardiac output of 1.80 L/min, and the inferolateral wall at -20 ms yielded 1.79 L/min.

Conclusions:

  • Left ventricular pacing site and right ventricular-left ventricular delay can be effectively optimized using a multielectrode patch and randomized data acquisition.
  • The developed technique shows promise for future clinical studies to enhance biventricular pacing therapy.