Behavior of Intra-QRS Potentials during Induced Ischemia in Isolated Guinea Pig Hearts

Investor logo

Warning

This publication doesn't include Faculty of Arts. It includes Faculty of Medicine. Official publication website can be found on muni.cz.
Authors

SEKORA Jiří NOVÁKOVÁ Marie PROVAZNÍK Ivo

Year of publication 2010
Type Article in Periodical
Magazine / Source Analysis of Biomedical Signals and Images
MU Faculty or unit

Faculty of Medicine

Citation
Field Physiology
Keywords intra-QRSpotential; isolated heart; guinea pig
Description Myocardial ischemia causes conduction changes that are often presented in electrocardiographic recording as intra-QRS changes. The present study analyses behavior of amplitude of intra-QRS potentials in the electrographic recording during myocardial ischemia - in its very early stages as well as during developed ischemia presented as ST elevation in ECG curve. The studied potentials are subtle low-amplitude short pulses found within QRS complexes as notches. Their analysis is performed using wavelet transform due to its suitable time-frequency properties. A characteristic pattern of intra-QRS potential behavior during ischemia is described in guinea pig isolated heart experiments.
Related projects:

You are running an old browser version. We recommend updating your browser to its latest version.