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Journal of Zhejiang University SCIENCE B

ISSN 1673-1581(Print), 1862-1783(Online), Monthly

Cerebral ischemic injury after transcatheter aortic valve replacement in patients with pure aortic regurgitation

Abstract: Considering the surgical risk stratification for patients with severe calcific aortic stenosis (AS), transcatheter aortic valve replacement (TAVR) is a reliable alternative to surgical aortic valve replacement (SAVR) (Fan et al., 2020, 2021; Lee et al., 2021). Despite the favorable clinical benefits of TAVR, stroke remains a dreaded perioperative complication (Auffret et al., 2016; Kapadia et al., 2016; Kleiman et al., 2016; Huded et al., 2019). Ischemic overt stroke, identified in 1.4% to 4.3% of patients in TAVR clinical practice, has been associated with prolonged disability and increased mortality (Auffret et al., 2016; Kapadia et al., 2016; Levi et al., 2022). The prevalence of hyperintensity cerebral ischemic lesions detected by diffusion-weighted magnetic resonance imaging (DW-MRI) was reported to be about 80%, which is associated with impaired neurocognitive function and vascular dementia (Vermeer et al., 2003; Barber et al., 2008; Kahlert et al., 2010).

Key words: Cerebral ischemic injury; Transcatheter aortic valve replacement; Pure aortic regurgitation; Transfemoral; Transapical

Chinese Summary  <12> 经导管主动脉瓣置换术治疗单纯主动脉瓣反流患者术后脑损伤

刘先宝1,2,戴晗怡1,2,范嘉祺1,周道1,2,朱钢杰1,2,Abuduwufuer YIDILISI1,2,陈俊1,2,许烨铭1,2,王力涵1,王建安1,2
1浙江大学医学院第二附属医院心内科, 中国杭州市,310009
2浙江大学医学院附属医学院内科学, 中国杭州市,310058
摘要:
目的:本研究旨在比较重度主动脉瓣狭窄(AS)和单纯主动脉瓣反流(AR)患者接受经导管主动脉瓣置换术(TAVR)后发生脑损伤的风险。
方法:回顾性分析287例AS和65例单纯AR接受TAVR的患者。患者在TAVR术前和术后3天进行头颅磁共振检查。
结果:本研究中57.7%为男性;单纯AR患者年龄较小(71岁vs.74岁;P=0.001),美国心胸外科医师协会评分较低(2.39 vs. 3.89;P<0.001);3.1%的患者在出院前发生了症状性脑卒中;单纯AR组脑损伤病灶发生率(83.1% vs. 85.0%;P=0.695),病灶数(3.0 (1.5~7.5) vs. 3.0 (1.0~8.0);P=0.928)和总体积(130.0 mm3 vs. 190.0 mm3P=0.585)与AS组相比差异无统计学意义;此外,单纯AR组中的经股动脉入路和经心尖入路相比,无论是病灶数(3.0 (2.0~7.0) vs. 3.5 (1.0~8.3);P=0.923)还是总体积(120.0 mm3 vs. 135.0 mm3P=0.837)均相似。多元广义泊松回归模型证实吸烟史、慢性肾脏病4期或5期、左室流出道钙化是单纯AR患者TAVR术后脑损伤病灶数的独立预测因素。
结论:AS组与单纯AR组相比,TAVR术后新发脑损伤病灶的发生率、数量及总体积差异均无统计学意义。

关键词组:脑损伤;经导管主动脉瓣置换术;单纯主动脉瓣反流;经股动脉入路;经心尖入路


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DOI:

10.1631/jzus.B2200444

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On-line Access:

2023-06-13

Received:

2022-09-05

Revision Accepted:

2023-01-20

Crosschecked:

2023-07-21

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