ZHANG Hang , WANG Huajun , SHI Fengwu , LIU Su , MA Qianli , AN Jinghui
  • 1. Department of Cardiac Surgery, Second Hospital of Hebei Medical University, Shijiazhuang, 050000, P. R. China;
AN Jinghui, Email:
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 2016 to 2023 were collected, and the new-onset incidence of conduction block after TAVR was analyzed retrospectively. Results There were 352 patients of TAVR operation (256 patients of Venus-A, 69 patients of Vita-Flow, 27 patients of J-Valve), among whom 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%) 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 block is a common complication after TAVR, 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 also effectively reduce the new rate of postoperative conduction block and improve the overall success rate of TAVR surgery.