[Single center experience of transcatheter aortic valve replacement with a simplified operative protocol].

Objective: To summarize the single center experience of transcatheter aortic valve replacement (TAVR) with a simplified operative protocol. Methods: Consecutive patients who underwent transfemoral TAVR (TF-TAVR) from July 2020 to December 2020 in Fuwai Hospital were retrospectively analyzed. We compared the baseline characteristic, procedure information, 30-day follow-up outcomes of the patients who underwent TF-TAVR without the simplified operative protocol (routine group) or with the simplified operative protocol (simplified protocol group). Results: 93 patients were collected, 42 patients belonging to routine group, 51 patients belonging to simplified protocol group. In simplified protocol group, there were 51 patients planned to use ultrasound-guided femoral access puncture, procedure was successful in all 51 patients (100%). There were 49 patients planned to use the radial artery as the secondary access, procedure was successful in 45 patients (92%). There were 48 patients planned to use the strategy of avoidance of urinary catheter, this strategy was achieved in 35 patients (73%). There were 12 patients planned to use the left ventricular guidewire to pace, procedure was successful in 11 patients (92%). There were no differences in baseline characteristics, major clinical endpoints and 30-day follow-up outcomes between the two groups. Meanwhile, the procedure time ((62.5±17.9)min vs. (78.3±16.7)min, P<0.001), operation room time ((133.7±25.1)min vs. (159.2±42.6)min, P<0.001), X-ray exposure time ((17.2±6.5)min vs. (20.2±7.7)min, P=0.027) were significantly shorten in simplified protocol group compared with the routine group. Conclusion: Our study results indicate that the simplified operative protocol of TF-TAVR is as effective and safe as the routine operative protocol, meanwhile using the simplified operative protocol can significantly increase the operative efficiency of TF-TAVR.目的： 总结经导管主动脉瓣置换（TAVR）术式简化的单中心临床经验。 方法： 2020年10月中国医学科学院阜外医院开始有计划地对经股动脉途径TAVR（TF-TAVR）的术式进行进一步简化，开展超声引导主入路穿刺，桡动脉副入路、无导尿，左心室导丝起搏等策略。本研究回顾性连续收集2020年10月之前3个月（2020年7—9月，常规组）和之后3个月（2020年10—12月，简化组）患者的基线特征、手术相关数据、术后30 d随访结果，并进行比较分析。 结果： 共纳入患者93例，常规组42例，简化组51例。简化组中计划应用超声引导入路穿刺51例，成功应用51例（100%）；计划应用桡动脉副入路49例，成功应用45例（92%）；计划无导尿48例，最终无导尿35例（73%）；计划左心室导丝起搏12例，最终成功应用11例（92%）。两组患者在基线资料、器械成功率、主要终点事件发生率、术后瓣膜功能等方面差异无统计学意义，但简化组的平均手术时间［（62.5±17.9）min 比（78.3±16.7）min，P<0.001］、手术室时间［（133.7±25.1）min 比（159.2±42.6）min，P<0.001］、X线照射时间［（17.2±6.5）min比（20.2±7.7）min，P=0.027］均短于常规组。 结论： 本中心针对TF-TAVR术式的简化方案安全、可行，有效提高了手术效率。.