ZHANG Hang , WANG Huajun , SHI Fengwu , LIU Su , MA Qianli , AN Jinghui
  • Department of Cardiac Surgery, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, P. R. China;
AN Jinghui, Email: Anjinghui2009@126.com
Transcatheter aortic valve replacement; conduction block; permanent pacemaker implantation
10.7507/1007-4848.202311035
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Objective To investigate the new-onset conduction block after transcatheter aortic valve replacement (TAVR) and summarize the relevant experience. Methods  The perioperative data of TAVR patients in the Second Hospital of Hebei Medical University from January 2016 to February 2023 were collected, and the new-onset incidence of conduction block after TAVR was analyzed retrospectively. Results  Finally 352 patients were included, including 225 males and 127 females, with an average age of (67.2±5.1) years, among whom 256 patients were treated with Venus-A valves, 69 patients with Vita-Flow valves, and 27 patients with J-Valve valves. There were 38 (10.8%) patients of new-onset postoperative block. There were 6 (1.7%) patients of new-onset postoperative grade Ⅲ atrioventricular block, including 5 (2.0%) patients of Venus-A and 1 (1.4%) patient of Vita-Flow. Conduction function was restored in 2 patients within 14 days after surgery, and failed to be restored in 4 patients, who then received permanent pacemaker implantation in the Department of Cardiology. There were 27 (7.7%) patients of new left bundle branch block after surgery, including 22 (8.6%) patients of Venus-A, 4 (5.8%) patients of Vita-Flow and 1 (3.7%) patient of J-Valve; and conduction function was restored within 7 days after surgery in 23 patients, and 5 (1.4%) patients developed new right bundle branch blocks after surgery including 4 (1.5%) patients of Venus-A and 1 (1.4%) patient of Vita-Flow. Conclusion  New-onset conduction block is a common complication after TAVR, and the new-onset rate of left bundle branch block is the highest, followed by the grade Ⅲ atrioventricular block. Mastering reasonable methods and applying appropriate strategies can effectively reduce the new-onset rate of postoperative conduction block and improve the overall success rate of TAVR surgery.

Citation： ZHANG Hang, WANG Huajun, SHI Fengwu, LIU Su, MA Qianli, AN Jinghui. New-onset conduction block after transcatheter aortic valve replacement: A retrospective analysis in a single center. Chinese Journal of Clinical Thoracic and Cardiovascular Surgery, 2025, 32(3): 372-376. doi: 10.7507/1007-4848.202311035 Copy

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