Publication detail

Depolarization changes during ischemia detected through time-frequency analysis of the intracardiac electrogram

GRAMATIKOV, B., PROVAZNÍK, I., THAKOR, N.

Original Title

Depolarization changes during ischemia detected through time-frequency analysis of the intracardiac electrogram

Type

conference paper

Language

English

Original Abstract

Epicardial and endocardial electrograms were recorded from isolated perfused rabbit hearts in which local ischemia was induced by occluding the LAD for short periods of time. Intracavitary and epicardial bipolar leads were found to be sensitive to ischemia in paced and non-paced beats. Both the intra-QRS electrogram and the ST level respond to ischemia whereas there are cases with the one showing differences with ischemia while the other is not. Intracardial leads can detect ischemia in a distal site. Hence the intra-QRS electrogram may be a valuable alternative to ST analysis in ischemia detection. This may find application in implantable devices.

Keywords

Electrogram, local ischemia, intra-QRS, ST analysis

Authors

GRAMATIKOV, B., PROVAZNÍK, I., THAKOR, N.

RIV year

2004

Released

1. 10. 1998

Location

Cleveland

Pages from

289

Pages to

292

Pages count

4

BibTex

@inproceedings{BUT11302,
  author="Boris {Gramatikov} and Valentine {Provazník} and Nitish {Thakor}",
  title="Depolarization changes during ischemia detected through time-frequency analysis of the intracardiac electrogram",
  booktitle="Computers in Cardiology",
  year="1998",
  pages="4",
  address="Cleveland"
}