在异常性早发性心室收缩中心肌工作:评估左心室功能和预后
Chunrui Zhou1, Qian He1, Yunchuan Ding1,2,3
1Department of Ultrasound, Yanan Hospital of Kunming City, The Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China.
Journal of clinical ultrasound : JCU
|September 3, 2024
概括
过早的心室收缩 (PVCs) 会损害左心室的功能. 非侵入性心肌工作,特别是全球工作效率 (GWE),是切除后PVC复发的敏感预测因素.
科学领域:
- 心脏病学 心脏病学
- 心声回声扫描 (Echocardiography) 是一种心声回声扫描.
- 心脏机械学 心脏机械学
背景情况:
- 过早的心室收缩 (PVC) 可能会对左心室功能产生负面影响.
- 非侵入性心肌工作 (MW) 技术提供了一种新的方法,通过结合后负载来评估左心室功能.
研究的目的:
- 评估非侵入性心肌工作技术在评估患有PVCs的患者左心室缩功能的有用性.
- 确定与患有PVCs的患者术后复发相关的风险因素.
主要方法:
- 一项涉及66名PVC患者和35名健康对照者的比较研究.
- 对临床数据,二维心声回声学参数和心肌工作指数的分析.
主要成果:
- 与对照组相比,患有PVC的患者显示左心脏直径增加,左心室内部尺寸增加,左心室壁厚度增加.
- 在PVC患者中,全球工作浪费 (GWW) 增加,全球工作效率 (GWE) 降低.
- 在PVC负担和GWW (正值) 和GWE (负值) 之间观察到显著的相关性.
- 较低的GWE,全球纵向应变 (GLS) 和射出分数 (EF) 与更高的术后复发率有关.
结论:
- 聚乙烯有助于左心室缩功能受损.
- 全球工作效率 (GWE) 成为手术后PVC复发的最敏感预测因素.
- 针对GWE (<91.5%),GLS (<15.5%) 和EF (<62.5%) 的特定值表明复发风险增加.
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