Patent ID: 9278220
Filing Date: 2016-03-08
CPC Classification: A61B,A61N

Claim Text:
1. A method for determining presence of scar tissue through an implanted lead having a plurality of electrodes positionable in the right or left ventricle for cardiac pacing and sensing, wherein the plurality of electrodes includes a first electrode, the method comprising: sensing heart activity with the first electrode to produce a first unipolar electrogram (EGM) waveform, wherein the sensed heart activity is not a result from pacing of the ventricle in which the first electrode is positioned; extracting by a medical device processor receiving the first unipolar EGM waveform two or more features from the first unipolar EGM waveform representative of heart activity at the first electrode; identifying scar tissue at a site of the first electrode based upon at least two of the extracted features indicating scar tissue; and providing a response to identifying the scar tissue, wherein providing the response comprises at least one of generating a notification of identified scar tissue at the first electrode site and automatically excluding the first electrode for pacing therapy delivery.