在健康受试者中左心室透气功能的运动心电图:来自RIGHT-NET的见解
Francesco Ferrara1, Andreina Carbone2,3, Luna Gargani4
1Cardio-Thoracic-Vascular Department, University Hospital "San Giovanni Di Dio E Ruggi D'Aragona," Salerno, Italy.
运动心电回声可以表明透气功能障碍,但强度会影响测量. 这项研究定义了运动TTE期间左心室扩张性功能的正常极限,建议将结果表达为心脏输出功率,以准确诊断.
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.
- 生理学 生理学 生理学
背景情况:
- 运动的胸前多普勒回声心力学 (TTE) 使用二手多普勒E/e'比率和三回速度 (TRV) 来评估左心室 (LV) 扩张功能障碍.
- 运动强度可能会影响这些测量,因此需要定义正常运动极限.
研究的目的:
- 在健康成年人中确定运动TTE期间LV扩张功能指数的正常极限.
- 为了研究运动强度对透静功能测量的影响.
主要方法:
- 192名健康成年人接受了休息和炼TTE,使用半休息周期人体表.
- 静脉透量 (E/e'比,TRV) 测量在休息状态和中级运动期间进行.
- 使用平均隔膜和侧面e'测量计算E/e'比.
主要成果:
- 在中级运动中,E/e比率略有增加,从静止状态下的6.3±1.9增加到7.3±2.3 (P<0.001).
- 运动E/e'的第95百分位是11.8.8.
- 发现E/e'和TRV都取决于运动强度和心脏输出 (CO).
结论:
- 静脉透功能指数,特别是E/e'和TRV受运动强度的影响.
- 建议将E/e'和TRV作为CO的函数来表达,以准确诊断LV运动对运动的扩张性反应.
- 对于运动TTE透气功能的确定的正常限值对于可靠的解释至关重要.
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