Publication result 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

English Title

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

Type

Paper in proceedings (conference paper)

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.

English 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

Key words in English

Electrogram, local ischemia, intra-QRS, ST analysis

Authors

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

Released

01.10.1998

Location

Cleveland

Book

Computers in Cardiology

Pages from

289

Pages count

4

BibTex

@inproceedings{BUT11302,
  author="Boris {Gramatikov} and Valentýna {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"
}