布鲁加达综合征患者心脏电生理基质是ECG表型和电图异常的基础
Junjie Zhang1, Frédéric Sacher1, Kurt Hoffmayer1
1From Cardiac Bioelectricity and Arrhythmia Center (J.Z., P.C., J.S., D.C., M.F., Y.R.) and Department of Biomedical Engineering (J.Z., Y.R.), Washington University, St. Louis, MO; Bordeaux University Hospital, LIRYC Institute, Pessac, France (F.S., M. Hocini, M. Haïssaguerre); School of Medicine, University of Wisconsin, Madison (K.H.); Institute for Computational Medicine, Johns Hopkins University, Baltimore, MD (T.O.); CardioInsight Technologies, Cleveland, OH (M. Strom); School of Medicine, Washington University, St. Louis, MO (P.C., J.S., D.C., M.F., Y.R.); and School of Medicine, University of California, San Francisco (M. Scheinman).
布鲁加达综合征 (BrS) 涉及右心室的异常电活动,导致延迟导电和再极化. 电脑心电图像可以区分BrS与其他心脏病.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 医疗成像医学成像
背景情况:
- 布鲁加达综合征 (BrS) 是一种与突然死亡有关的心脏疾病.
- 引起心脏BrS的特定电气异常尚未完全理解.
研究的目的:
- 通过使用非侵入性心电图像来描述布鲁加达综合征的电生理基质.
- 为了区分BrS的电特性与右束分支块的电特性.
主要方法:
- 在25名BrS患者中使用了非侵入性心电图像,其中6名患有右束分支阻塞,7名健康对照.
- 分析了单极电图,激活时间,导电特性和再极化间隔.
主要成果:
- BrS患者仅在右心室外流管中表现出异常,包括ST段升高和延迟激活.
- 具有低振幅的特征,分成部分的电图表明缓慢的不连续导电和延迟的再极化.
- 在BRS患者的右心室外流通道边缘表现出的再极化梯度.
结论:
- 缓慢的不连续导电和的再极化分散是BrS中右心室外流通道的关键特征.
- 电脑心电图像有效地区分布鲁加达综合征与基于不同的电生理基质的右束分支块.
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