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Left Bundle Branch-Optimized Cardiac Resynchronization Therapy in a Patient with a Carillon Annuloplasty Device: Challenges and Solutions

Year: 2026

Type: article

Abstract: Cardiac resynchronization therapy (CRT) improves outcomes in heart failure, but prior interventions like percutaneous mitral annuloplasty may hinder lead placement. We present a 70-year-old male with ischemic cardiomyopathy and severe functional mitral regurgitation who previously received a Carillon device. Due to coronary sinus inaccessibility, left bundle branch area pacing optimized cardiac resynchronization therapy (LOT-CRT) was performed. The procedure was successful, with improved QRS duration, echocardiographic findings, and clinical status. This case highlights LOT-CRT as a viable alternative in patients with challenging anatomy, offering physiological pacing when conventional CRT is not feasible.

Source: Turk Kardiyoloji Dernegi Arsivi-Archives of the Turkish Society of Cardiology

DOI: 10.5543/tkda.2025.53506

Authors: Hasan Kan, Ahmet Taha Şahin, Ahmet Lütfü Sertdemir, Enes Elvin Gül

Institutions: Necmettin Erbakan University, SBÜ Beyhekim Training and Research Hospital

Language: English

Topic: Cardiac pacing and defibrillation studies

Subfield: Cardiology and Cardiovascular Medicine

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: diamond

OpenAlex ID: W4414084094

FWCI:

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