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Mao Y, Duchenne J, Yang Y, Garweg C, Yang Y, Sheng X, Zhang J, Ye Y, Wang M, Paton MF, Puvrez A, Vöros G, Ma M, Fu G, Voigt JU. Left bundle branch pacing better preserves ventricular mechanical synchrony than right ventricular pacing: a two-centre study. Eur Heart J Cardiovasc Imaging 2024; 25:328-336. [PMID: 37933672 DOI: 10.1093/ehjci/jead296] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 08/10/2023] [Revised: 10/10/2023] [Accepted: 10/23/2023] [Indexed: 11/08/2023] Open
Abstract
AIMS Left bundle branch pacing (LBBP) has been shown to better maintain electrical synchrony compared with right ventricular pacing (RVP), but little is known about its impact on mechanical synchrony. This study investigates whether LBBP better preserves left ventricular (LV) mechanical synchronicity and function compared with RVP. METHODS AND RESULTS Sixty patients with pacing indication for bradycardia were included: LBBP (n = 31) and RVP (n = 29). Echocardiography was performed before and shortly after pacemaker implantation and at 1-year follow-up. The lateral wall-septal wall (LW-SW) work difference was used as a measure of mechanical dyssynchrony. Septal flash, apical rocking, and septal strain patterns were also assessed. At baseline, LW-SW work difference was small and similar in two groups. SW was markedly decreased, while LW work remained mostly unchanged in RVP, resulting in a larger LW-SW work difference compared with LBBP (1253 ± 687 mmHg·% vs. 439 ± 408 mmHg·%, P < 0.01) at last follow-up. In addition, RVP more often induced septal flash or apical rocking and resulted in more advanced strain patterns compared with LBBP. At 1 year follow-up, LV ejection fraction (EF) and global longitudinal strain (GLS) were more decreased in RVP compared with LBBP (ΔLVEF: -7.4 ± 7.0% vs. 0.3 ± 4.1%; ΔLVGLS: -4.8 ± 4.0% vs. -1.4 ± 2.5%, both P < 0.01). In addition, ΔLW-SW work difference was independently correlated with LV adverse remodelling (r = 0.42, P < 0.01) and LV dysfunction (ΔLVEF: r = -0.61, P < 0.01 and ΔLVGLS: r = -0.38, P = 0.02). CONCLUSION LBBP causes less LV mechanical dyssynchrony than RVP as it preserves a more physiologic electrical conduction. As a consequence, LBBP appears to preserve LV function better than RVP.
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Affiliation(s)
- Yankai Mao
- Department of Diagnostic Ultrasound and Echocardiography, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Cardiovascular Sciences, KU Leuven, Herestraat 49, Leuven 3000, Belgium
| | - Jürgen Duchenne
- Department of Cardiovascular Sciences, KU Leuven, Herestraat 49, Leuven 3000, Belgium
| | - Yuan Yang
- Department of Diagnostic Ultrasound and Echocardiography, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Christophe Garweg
- Department of Cardiovascular Sciences, KU Leuven, Herestraat 49, Leuven 3000, Belgium
- Department of Cardiovascular Diseases, University Hospitals Leuven, Herestraat 49, Leuven 3000, Belgium
| | - Ying Yang
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, East Qingchun Road 3, Hangzhou 310016, China
| | - Xia Sheng
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, East Qingchun Road 3, Hangzhou 310016, China
| | - Jiefang Zhang
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, East Qingchun Road 3, Hangzhou 310016, China
| | - Yang Ye
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, East Qingchun Road 3, Hangzhou 310016, China
| | - Min Wang
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, East Qingchun Road 3, Hangzhou 310016, China
| | - Maria F Paton
- Department of Cardiovascular Sciences, KU Leuven, Herestraat 49, Leuven 3000, Belgium
- Leeds Institute of Cardiovascular and Metabolic Medicine, Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, UK
- Leeds Cardiovascular Clinical Research Facility, Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - Alexis Puvrez
- Department of Cardiovascular Sciences, KU Leuven, Herestraat 49, Leuven 3000, Belgium
- Department of Cardiovascular Diseases, University Hospitals Leuven, Herestraat 49, Leuven 3000, Belgium
| | - Gabor Vöros
- Department of Cardiovascular Sciences, KU Leuven, Herestraat 49, Leuven 3000, Belgium
- Department of Cardiovascular Diseases, University Hospitals Leuven, Herestraat 49, Leuven 3000, Belgium
| | - Mingming Ma
- Department of Diagnostic Ultrasound and Echocardiography, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Guosheng Fu
- Department of Cardiology, Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, East Qingchun Road 3, Hangzhou 310016, China
| | - Jens-Uwe Voigt
- Department of Cardiovascular Sciences, KU Leuven, Herestraat 49, Leuven 3000, Belgium
- Department of Cardiovascular Diseases, University Hospitals Leuven, Herestraat 49, Leuven 3000, Belgium
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