高低梯度重度主动脉瓣狭窄患者术前特征与 TAVR 疗效比较
摘要
Valve Replacement,TAVR) 后的疗效差异,为不同梯度重度主动脉瓣狭窄患者在临床治疗决策方案时提供参考。方法 选取
2021 年 5 月至 2024 年 4 月就诊于阜阳市人民医院符合重度主动脉瓣狭窄标准并接受 TAVR 治疗的共 56 名患者,根据术前
主动脉平均跨瓣压差分为高梯度重度主动脉瓣狭窄(High-gradient severe aortic stenosis,HGSAS)组 35 例,低梯度重度主动
脉瓣狭窄 (Low-Gradient Severe Aortic Stenosis,LGSAS) 组 21 例,收集一般数据、心脏超声、冠脉 CTA、术后并发症、堪萨
斯城心肌病问卷评分,对 2 组不同梯度患者 TAVR 治疗前临床特征及术后 1 月、6 月疗效差异进行比较。结果 在 56 例接
受经 TAVR 治疗的重度主动脉瓣狭窄患者中,低梯度组患者基线时左室射血分数显著较低,肌酐水平较高(均 p<.05),
术后随访两组主动脉跨瓣压差和瓣口最大流速均显著改善,低梯度组在左房直径、升主动脉直径和左室射血分数方面改
善更显著,而高梯度组术后 1 月内心电传导异常发生率较高(均 p<.05)。两组堪萨斯城心肌病问卷评分显著提升,显示
TAVR 改善了患者的生活质量。结论 高梯度和低梯度重度主动脉瓣狭窄患者在术前存在显著差异,不同梯度的重度主动脉
瓣狭窄患者均可从 TAVR 中获益,LGSAS 患者在 TAVR 术后具有更显著的结构和功能改善,而 HGSAS 患者需特别关注术
后心电传导检测。
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