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

作者： Jingfeng Wang*1, Zhenning Nie*1, Haiyan Chen*2, Xianhong Shu2, Zhaohua Yang3, Ruiming Yao1, Yangang Su1, Junbo Ge1 1Department of Cardiology, Shanghai Institute of Cardiovascular Diseases,Zhongshan Hospital, Fudan University, 2Department of Echocardiography, Shanghai Institute of Medical imaging, Shanghai Institute of Cardiovascular Diseases,Zhongshan Hospital, Fudan University, 3Department of Cardiac surgery, Shanghai Institute of Cardiovascular Diseases,Zhongshan Hospital, Fudan University

简介：

Overview

This article presents a method for establishing a chronic asynchronous heart failure (HF) model using rapid pacing and left bundle branch ablation. The model is validated through two-dimensional speckle tracking imaging and aortic velocity time integral, demonstrating the benefits of cardiac resynchronization therapy.

Key Study Components

Area of Science

• Cardiology
• Heart Failure
• Cardiac Resynchronization Therapy

Background

• Chronic heart failure is a significant health issue.
• Cardiac resynchronization therapy (CRT) can improve heart function.
• Asynchronous heart failure models are essential for studying CRT.
• Left bundle branch ablation is a key technique in this model.

Purpose of Study

• To establish a stable chronic asynchronous heart failure model.
• To evaluate the effects of cardiac resynchronization therapy.
• To utilize echocardiographic parameters and biological modifications for validation.

Methods Used

• Rapid pacing combined with left bundle branch ablation.
• Two-dimensional speckle tracking imaging for assessment.
• Aortic velocity time integral measurement.
• Epicardial left ventricle lead implantation technique.

Main Results

• Successful establishment of a chronic asynchronous heart failure model.
• Validation of the model through imaging techniques.
• Demonstration of CRT benefits in the model.
• Insights into the biological modifications associated with HF.

Conclusions

• The method provides a valid approach for HF research.
• It highlights the importance of left bundle branch ablation.
• This model can facilitate future studies on CRT efficacy.

Frequently Asked Questions