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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

[Echocardiographic evaluation of cardiac resynchronization therapy]

Milan Petrović, Goran Milasinović, Bosiljka Vujisić-Tesić

    Srpski Arhiv Za Celokupno Lekarstvo
    |February 20, 2007
    PubMed

    Insights

    Cardiac resynchronization therapy (CRT) significantly improves heart function in patients with severe heart failure (HF) and left bundle branch block (LBBB). Echocardiography effectively evaluates CRT

    Area of Science:

    • Cardiology
    • Medical Devices
    • Diagnostic Imaging

    Background:

    • Cardiac resynchronization therapy (CRT) is an emerging treatment for chronic heart failure (HF), particularly in dilated cardiomyopathy (DCM) with left bundle branch block (LBBB).
    • Severe HF necessitates advanced therapeutic interventions to improve patient outcomes.

    Purpose of the Study:

    • To evaluate the efficacy of CRT in managing severe heart failure.
    • To determine the role of echocardiography in assessing the outcomes of CRT.

    Main Methods:

    • Nineteen patients with DCM, severe HF (NYHA III-IV), LBBB, and ejection fraction (EF) <35% received CRT.
    • Echocardiography was performed pre- and post-CRT to assess left ventricular (LV) function, mitral regurgitation (MR), and right ventricular (RV) pressure.
    • Mean follow-up was 17 months.

    Main Results:

    • CRT led to significant improvements in LV dimensions, cardiac output, cardiac index, myocardial performance index, and stroke index.
    • Ejection fraction of the left ventricle (EFLV) increased by 10% and LV fractional shortening improved by 6% in 62% of patients.
    • CRT reduced MR, prolonged LV diastolic filling time, decreased RV pressure, and shortened interventricular mechanical delay by 28%.

    Conclusions:

    • CRT plays a crucial role in enhancing LV function and correcting ventricular asynchrony in HF patients.
    • Echocardiography is a valuable tool for monitoring treatment effectiveness in patients undergoing CRT for HF.
    Abstract

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