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Method and system for improved estimation of time of left ventricular pacing with respect to intrinsic right ventricular activation in cardiac resynchronization therapy
专利权人:
Medtronic; Inc.
发明人:
Subham Ghosh
申请号:
US13952061
公开号:
US09265955B2
申请日:
2013.07.26
申请国别(地区):
US
年份:
2016
代理人:
摘要:
A method and system of cardiac pacing is disclosed. A baseline rhythm is determined. The baseline rhythm includes a baseline atrial event and a baseline right ventricular RV event from an implanted cardiac lead or a leadless device, a pre-excitation interval determined from the baseline atrial event and the baseline RV event, and a plurality of activation times determined from a plurality of body-surface electrodes. A determination is made as to whether a time interval measured from an atrial event to a RV event is disparate from another time interval measured from the atrial event to an earliest RV activation time of the plurality of activation times. A correction factor is applied to the pre-excitation interval to obtain a corrected pre-excitation interval in response to determining the RV event is disparate from the earliest RV activation time. The processor is configured to signal the pulse generator to deliver electrical stimuli to a left ventricle (LV) using the corrected pre-excitation interval before RV sensing time.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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