Open AccessContribution of myocardium responsible for ventricular tachycardia to abnormalities detected by analysis of signal-averaged ECGs.
Author(s) -
Margaret Hood,
Steven M. Pogwizd,
J Peirick,
M E Cain
Publication year - 1992
Publication title -
circulation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 7.795
H-Index - 607
eISSN - 1524-4539
pISSN - 0009-7322
DOI - 10.1161/01.cir.86.6.1888
Subject(s) - medicine , cardiology , ventricular tachycardia , sustained ventricular tachycardia , tachycardia , signal averaged electrocardiogram
Current methods of signal-averaged ECG analysis interrogate the terminal 40 msec of the QRS complex and/or the ST segment and have a low positive-predictive accuracy for detecting vulnerability to sustained ventricular tachycardia (VT). The extent to which abnormalities detected during these ECG intervals are generated by myocardial tissue responsible for VT has not been well defined. The purpose of this study was to determine when, during sinus rhythm, myocardium responsible for VT is activated.
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