Rate-dependent aberrancy and cardiac resynchronization therapy |
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| Authors: | Sohaib Haseeb BSc Enes Elvin Gul MD FESC FEHRA |
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| Affiliation: | 1. College of Medicine and Dentistry, James Cook University, Townsville, Queensland, Australia;2. Division of Cardiac Electrophysiology, Madinah Cardiac Centre, Madinah, Saudi Arabia |
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| Abstract: | Left bundle branch block (LBBB) can result in significant dyssynchrony in left ventricular (LV) contraction, ultimately leading to cardiac remodeling. LBBB can be rate dependent and may appear with LV systolic dysfunction. Cardiac resynchronization therapy (CRT) has been demonstrated to improve hemodynamics as well as clinical symptoms in patients with LBBB. We describe the case of a 57-year-old man who underwent CRT implantation due to exertional dyspnea, rate-dependent LBBB, and impaired left LV systolic function. |
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| Keywords: | cardiac resynchronization therapy dyssynchrony left bundle branch block |
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