在儿科Fontan患者中对心房和心室透气功能的应变测量:与对照者的比较以及心室形态类型之间的比较
Robert W Loar1,2, Ricardo H Pignatelli3, J Christopher Wilkinson3
1Pediatric Cardiology, Cook Children's Medical Center, Fort Worth, Texas, USA.
Echocardiography (Mount Kisco, N.Y.)
|April 26, 2025
概括
与健康对照人群相比,儿科Fontan患者表现出心房和透气功能的改变,右心室 (RV) 类型的Fontan循环表现出更明显的变化. 需要进一步的研究来确定临床相关性.
科学领域:
- 心脏病学 心脏病学
- 儿童心脏病学 儿童心脏病学
- 心声回声扫描 (Echocardiography) 是一种心声回声扫描.
背景情况:
- 喷泉循环可以导致异常的透气功能,这不是很好地由传统心声回声学的特征.
- 前庭功能和腹筋应变对于儿科Fontan患者至关重要,但未被充分研究的方面.
- 传统的心声回声学在评估Fontan患者的透静功能方面存在局限性.
研究的目的:
- 描述小儿科Fontan患者的心房功能和腹筋应变测量,使用斑点跟踪心声学 (STE).
- 为了比较Fontan患者和健康对照者之间的这些参数.
- 为了研究右心室 (RV) 和左心室 (LV) 之间的透缩功能差异.
主要方法:
- 一项涉及50名健康对照和50名儿科Fontan患者 (29名RV类型,21名LV类型) 的横截面研究.
- 使用STE对顶四腔图像进行回顾性分析,以推导心房和心室功能参数.
- 具体测量包括心房应变 (ac,con,res) 和透静应变率 (E-SR,A-SR).
主要成果:
- 与对照组相比,Fontan患者表现出明显较低的导管 (Ɛcon) 和储 (Ɛres) 心房应变.
- 丰坦患者的心房填充达到峰值的时间更长,并且对心室填充更依赖心房收缩.
- 与左心室 (LV) 类型相比,右心室 (RV) 类型的Fontan患者的心房填充峰值时间更长,被动填充应变率 (E-SR) 较低.
结论:
- 与健康个体相比,儿科Fontan患者表现出心房和腹筋应变参数的显著变化.
- 右心室 (RV) 类型的Fontan患者呈现出更乱的透支功能指标.
- 这些发现强调了在Fontan患者中STE衍生参数的特定人群正常值的必要性,并要求进一步调查其临床意义.
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