预测冠状动脉封闭风险在第一个TAVR的重复TAVR期间:不对称化导致失败
Kyohei Onishi1, Masakazu Yasuda2, Nobuhiro Yamada1
1Division of Cardiology, Department of Medicine, Kindai University Faculty of Medicine, Osaka, Japan.
概括
术前计算机断层扫描 (CT) 准确地预测了透气管大动脉 (TAV) 程序期间的冠状动脉封闭风险,但不对称的化可能导致差异. 非冠状动脉顶部量是TAV-in-TAV手术期间高风险的关键预测指标.
科学领域:
- 心脏病学 心脏病学
- 干预心脏病学 干预心脏病学
- 心脏成像 - - 心脏成像
背景情况:
- 在使用手术前计算机断层扫描 (CT) 替换TAV (TAVR) 后的第二次透气管大动脉 (TAV) 手术期间,预测 sinus sequestration (SS) 风险是不够报告的.
- 在TAV-in-TAV程序中,准确预测SS对于患者的安全至关重要.
研究的目的:
- 调查SS风险预测的准确性,使用手术前CT.
- 将手术前CT预测与在TAV-in-TAV期间在手术后CT观察到的SS风险进行比较.
主要方法:
- 对139名用气球扩展进行TAVR的患者的回顾性评估.
- 在手术前CT上测量预测的到鼻管结 (VTSTJ) 长度和冠状动脉尖端体积.
- 评估在术后CT上观察到的VTSTJ长度,以确定实际的SS风险.
主要成果:
- 在98.7%的病例中,手术前CT正确识别了高SS风险.
- 然而,预测SS风险低的患者中有72.1%实际上存在高观察风险.
- 不对称的非冠状动脉顶部体积 (NCC-CV) ≥41.6%独立预测观察到高SS风险 (OR:12.59,P < 0.001).
结论:
- 术前CT对SS风险预测有价值,但在不对称化的情况下可能低估风险.
- 非冠状动脉顶部体积是TAV-in-TAV期间准确评估SS风险的关键因素.
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