Method and apparatus for identifying cardiac and non-cardiac oversensing using intracardiac electrograms
First Claim
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1. An implantable medical device system for identifying cardiac and non-cardiac oversensing using intracardiac electrograms, the system comprising:
- an implantable medical device (IMD) containing EGM data;
means for accessing said EGM data;
means for evaluating interval differences;
means for evaluating interval patterns;
means for determining the presence of short and long intervals;
means for identifying oversensing based on the evaluated interval differences, the evaluated interval patterns, and the determined presence of short and long intervals; and
means for recommending a corrective action based on at least one characteristic of an identified oversensing to implement said corrective action in said IMD.
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Abstract
A method and apparatus for automatically identifying various types of cardiac and non-cardiac oversensing is provided. EGM data, including time intervals between sensed and paced events and signal morphologies, are analyzed for patterns indicative of various types of oversensing, including oversensing of far-field R-waves, R-waves, T-waves, or noise associated with electromagnetic interference, non-cardiac myopotentials, a lead fracture, or a poor lead connection. Identification of oversensing and its suspected cause are reported so that corrective action may be taken.
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Citations
11 Claims
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1. An implantable medical device system for identifying cardiac and non-cardiac oversensing using intracardiac electrograms, the system comprising:
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an implantable medical device (IMD) containing EGM data; means for accessing said EGM data; means for evaluating interval differences; means for evaluating interval patterns; means for determining the presence of short and long intervals; means for identifying oversensing based on the evaluated interval differences, the evaluated interval patterns, and the determined presence of short and long intervals; and means for recommending a corrective action based on at least one characteristic of an identified oversensing to implement said corrective action in said IMD. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification