前传导管前大动脉置换的预后影响计算断层扫描衍生的冠状动脉斑块特征和狭窄症严重程度
Neng Dai1,2, Xianglin Tang1,2, Runjianya Ling3
1Department of Cardiology, Zhongshan Hospital, Shanghai Institute of Cardiovascular Diseases, Fudan University, Shanghai, China.
European radiology
|February 3, 2024
概括
前导管大动脉置换 (TAVR) 计算机断层扫描血管造影 (CTA) 可以评估冠状动脉生理性狭窄症严重程度 (CT-FFR) 和高风险斑块特征 (HRPC). 无论是CT-FFR还是HRPC都预测不良事件,HRPC在不严重的狭窄病例中提供附加值.
科学领域:
- 心血管成像 - 心血管成像
- 干预心脏病学 干预心脏病学
- 放射学 放射学是一门学科.
背景情况:
- 过导管大动脉置换 (TAVR) 是对大动脉狭窄的常见手术.
- 在TAVR候选人中评估冠状动脉疾病对于风险分层至关重要.
- 术前计算机断层扫描血管学 (CTA) 为全面的冠状动脉评估提供了一个潜在的工具.
研究的目的:
- 评估TAVR前CTA的预后价值,以评估冠状动脉生理性狭窄症严重程度 (CT-FFR) 和高风险斑块特征 (HRPC).
- 确定CT-FFR和HRPC是否独立或联合预测TAVR患者的不良临床结果.
主要方法:
- 分析了一组427名TAVR患者的队列,这些患者接受了手术前的CTA.
- 在冠状动脉血管中评估了高风险斑块特征 (HRPC) 和CT-FFR.
- 基于CT-FFR和HRPC类别的船舶导向复合结果 (VOCO) 的风险进行了比较.
主要成果:
- 低CT-FFR (≤0.80) 和≥3个HRPC的存在与VOCO风险增加有关.
- 在CT-FFR不显著 (>0.80) 的船只中,≥3个HRPC确定了一个更高的VOCO风险组.
- 在CT-FFR不显著的船只中,HRPC的预后值更为明显.
结论:
- 前TAVR CTA提供了有关冠状动脉生理学和斑块特征的宝贵预后信息.
- CT-FFR和HRPC都是TAVR候选人的不良事件的独立预测因素.
- 通过CTTA进行CT-FFR和HRPC评估的结合可以完善TAV患者的风险分层.
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