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1. 发明授权

US06788970B1 System and method for treating vasovagal syncope using cardiac pacing 失效
标题翻译：使用心脏起搏治疗血管迷走性晕厥的系统和方法
公开(公告)号：US06788970B1
公开(公告)日：2004-09-07
申请号：US10132044
申请日：2002-04-24
申请人： Euljoon Park , Alan H. Kadish , Eric Falkenberg
发明人： Euljoon Park , Alan H. Kadish , Eric Falkenberg
IPC分类号： A61B1365
CPC分类号： A61N1/368
摘要： A pacemaker or other cardiac stimulation device is configured to predict the onset of vasovagal syncope and administers pacing therapy to prevent the syncope from occurring. Prediction of the onset of vasovagal syncope is based upon an analysis of the contractility of the heart muscle. In an example described herein, the contractility of the heart muscle is detected and compared with the average contractility. If the current contractility exceeds the average contractility by a predetermined threshold, a high risk of vasovagal syncope is thereby detected and the heart is paced at a vasovagal syncope prevention rate which may be, for example, 20 to 40 beats per minute faster than a previous heart rate. The contractility of the heart is determined, for example, by measuring the impedance of the heart tissue, by measuring the movement of heart tissue in the wall of the heart, by pressure using an accelerometer, or based on an electrogram signal. The contractility is averaged over a period of time to determine the average contractility.
摘要翻译：起搏器或其他心脏刺激装置被配置为预测血管迷走性晕厥的发作并施用起搏治疗以防止发生晕厥。血管迷走性晕厥发作的预测是基于对心肌收缩力的分析。在本文描述的示例中，检测心肌的收缩性并将其与平均收缩性进行比较。如果目前的收缩力超过平均收缩力达到预定阈值，则由此检测到血管迷走性晕厥的高风险，并且心脏以血管迷走性晕厥预防率进行起搏，其速率可以比例如以前的速度快20至40次/分钟心率。通过使用加速计的压力或基于电描记图信号测量心脏的心脏组织的心脏移动，通过测量心脏组织的阻抗来确定心脏的收缩性。收缩性在一段时间内平均以确定平均收缩性。

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