在混合大动脉膜疾病中,左心房和左心室合的改变
Maala Sooriyakanthan1, Fraser J Graham1,2, Natalie Ho3
1Division of Cardiology, Toronto General Hospital, University Health Network, University of Toronto, 200 Elizabeth Street, Toronto M5G 2C4, Canada.
European heart journal. Cardiovascular Imaging
|August 9, 2024
概括
中度混合性大动脉病 (MMAVD) 患者表现出左心室 (LV) 应变和心房 (AV) 合受损,类似于严重的隔离性大动脉病. 这些发现表明,在MMAVD和严重孤立疾病中,血液动力学后果和不良改造是相似的.
科学领域:
- 心脏病学 心脏病学
- 心脏生理学 心脏生理学
- 心声回声扫描 (Echocardiography) 是一种心声回声扫描.
背景情况:
- 大动脉疾病 (AVD) 包括狭窄 (AS) 和反 (AR),影响左心房 (LA) 和左心室 (LV) 功能.
- 中度混合大动脉病 (MMAVD) 呈现出复杂的血液动力学挑战,需要详细的功能表征.
- 了解心房 (AV) 合对于评估心脏效率在膜心脏病中至关重要.
研究的目的:
- 为了比较LA和LV功能和MMAVD患者的AV合与单独的中度/重度AS或AR,以及对照.
- 调查MMAVD对纵向应变 (LS) 和AV合的特定影响.
- 阐明MMAVD和严重的孤立AVD之间的血液动力学后果和不利重塑的相似之处.
主要方法:
- 追溯分析了260名患者和66名对照组的心声回声学数据.
- 量化LA和LV峰纵向应变 (LS) 使用斑点跟踪回声心脏学.
- 通过联合峰值LA和LV菌株评估AV合,使用ANOVA和t测试进行统计比较 (P<0.01).
主要成果:
- 与对照和中度/严重的AR相比,MMAVD显著减少了LV菌株,但与中度/严重的AS相似.
- 与对照组和中度AS/AR相比,MMAVD中AV合显著受损,但与严重AS/AR相比.
- 具体值:LV菌株MMAVD -17.1±1.1%,严重的AS -17.0±1.5%;AV合MMAVD 47.1±6.8%,严重的AS 45.1±5.6%.
结论:
- 在MMAVD中,受损的AV合与在严重的孤立AS或AR中看到的相似.
- 在MMAVD中减少的LV全球纵向应变 (GLS) 反映了严重AS的发现.
- 在MMAVD中,血液动力学效应和不良心脏重塑与孤立的严重大动脉膜疾病中的效应相似.
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