腹腔过早刺激合间隔对血压和心率动的影响
Mari A Watanabe1, Joseph E Marine, Robert Sheldon
1Harvard-Thorndike Institute of Electrophysiology, Beth Israel Deaconess Medical Center, Boston, Mass, USA. mwata001@udcf.gla.ac.uk
Circulation
|July 18, 2002
概括
心率动荡 (HRT) 可以通过编程的电刺激来诱导. 在这种情况下,心率影响HRT,而不是心室早产复合早产,这表明测量HRT的有效方法.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 自主神经系统功能 自主神经系统功能
背景情况:
- 心率动荡 (HRT) 是一种非侵入性风险分层工具,用于心肌梗塞后的死亡率.
- 以前的研究将心室过早复合合间隔和同情活动与HRT联系起来.
- 这项研究研究了编程刺激诱导的HRT和电生理学参数之间的关系.
研究的目的:
- 为了确定是否编程的电刺激可以可靠地诱导HRT.
- 评估心室早产综合体早产和合间隔对HRT参数的影响.
- 在受控环境中探索心率和HRT测量之间的关系.
主要方法:
- 二十八名患者接受了编程电刺激,其中包括来自右心室顶部的外刺激.
- 心室过早复合合间隔逐渐缩短,直到折射性.
- 计算了动斜率 (TS),动时间 (TT) 和动开始,并与合间隔和补偿暂停相关联.
- 持续监测动脉血压的情况.
主要成果:
- HRT可以通过编程刺激来诱导.
- 异常TS和流发作分别在4名和13名患者中观察到.
- HRT参数与合间隔或补偿暂停的相关性有限.
- 发现心率和TS/TT之间存在显著的相关性,较高的心率与较低的TS和较晚的TT有关.
结论:
- 编程电刺激是诱导和测量HRT参数的有效方法,特别是在罕见的腹腔过早复杂症患者中.
- 心率,而不是心室早产复合早产,显著影响诱导的HRT.
- 研究结果表明,在这种情况下,HRT测量受到与心率相关的自主调制的影响.
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