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Pham-Trung C, Veloza-Urrea D, Segura-Domínguez M, De la Rosa Rojas Y, Aguilera-Agudo C, García-Izquierdo EA, García-Rodríguez D, Jiménez-Sánchez D, Lorente-Ros A, Mingo-Santos S, Gonzalez-Lopez E, Domínguez F, Garcia-Pavia P, Toquero-Ramos J, Fernández-Lozano I, Castro-Urda V. Feasibility and safety of left bundle branch area pacing in cardiac amyloidosis. A single center experience. Pacing Clin Electrophysiol 2024; 47:149-155. [PMID: 38055612 DOI: 10.1111/pace.14894] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 09/25/2023] [Accepted: 11/17/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Conventional right ventricle (RV) pacemaker stimulation has been associated with worse clinical outcomes in patients with cardiac amyloidosis (CA). Left bundle branch area pacing (LABPP) has been suggested as a promising alternative. We sought to assess the safety, feasibility, and outcomes of LABPP in patients with CA. METHODS We retrospectively analyzed echocardiography and pacing parameters and clinical outcomes in 23 consecutive patients with CA and LBBAP implanted from June 2020 to October 2022. RESULTS LBBAP was successfully performed in 22 over 23 patients (19 male, 78.6 ± 11.7 years, 20 ATTR, mean LVEF 45.5 ± 16.2%). After the procedure, 9 patients showed Qr pattern and 11 a qR pattern in V1 on ECG. Average procedure time was 67 ± 28 min. After 7.7 ± 5.2 months follow-up, no procedure-related complications had occurred. Although, a significant reduction in QRS width (p = .001) was achieved, we did not observe significant changes in LVEF and Nt ProBNP at 6 months of follow-up. Pacing parameters were stable during follow-up: LBB capture threshold and R wave amplitude were 1.0 ± 0.5 V and 10.6 ± 6.0 mV versus 0.8 ± 0.1 V, p = .21 and 10.6 ± 5.1 mV (p = .985) at follow up. CONCLUSION LBBAP is safe and feasible pacing technique for patients with CA. LBBAP is associated with significant narrowing of QRSd without worsening in LVEF and Nt-proBNP.
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Affiliation(s)
- Chinh Pham-Trung
- Electrophysiology Unit, Cardiology Service. Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Darwin Veloza-Urrea
- Electrophysiology Unit, Cardiology Service. Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Melodie Segura-Domínguez
- Electrophysiology Unit, Cardiology Service. Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Yuleisy De la Rosa Rojas
- Electrophysiology Unit, Cardiology Service. Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Cristina Aguilera-Agudo
- Electrophysiology Unit, Cardiology Service. Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | | | - Daniel García-Rodríguez
- Electrophysiology Unit, Cardiology Service. Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Diego Jiménez-Sánchez
- Electrophysiology Unit, Cardiology Service. Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Alvaro Lorente-Ros
- Electrophysiology Unit, Cardiology Service. Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Susana Mingo-Santos
- Cardiac imaging Unit, Cardiology Service. Hospital universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Esther Gonzalez-Lopez
- Heart Failure and Inherited Cardiac Diseases Unit, Department of Cardiology, Hospital Universitario Puerta de Hierro Majadahonda, IDIPHISA, CIBERCV, Madrid, Spain
| | - Fernando Domínguez
- Heart Failure and Inherited Cardiac Diseases Unit, Department of Cardiology, Hospital Universitario Puerta de Hierro Majadahonda, IDIPHISA, CIBERCV, Madrid, Spain
| | - Pablo Garcia-Pavia
- Heart Failure and Inherited Cardiac Diseases Unit, Department of Cardiology, Hospital Universitario Puerta de Hierro Majadahonda, IDIPHISA, CIBERCV, Madrid, Spain
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Jorge Toquero-Ramos
- Electrophysiology Unit, Cardiology Service. Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Ignacio Fernández-Lozano
- Electrophysiology Unit, Cardiology Service. Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
| | - Víctor Castro-Urda
- Electrophysiology Unit, Cardiology Service. Hospital Universitario Puerta de Hierro, Majadahonda, Madrid, Spain
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