The relationship between QT dispersion and left and right ventricular diastolic dysfunction in patients with myocardial infarction.
OBJECTIVE
The purpose of this study was to investigate the relation between electrical dispersion and impairment of ventricular filling in patients with acute myocardial infarction (MI).


METHODS
Thirty patients with recent myocardial infarction (17 patients with anterior and 13 patients with inferior MI) were included in the study. QT dispersion (QTd) was defined as maximum minus minimum QT interval durations. Flow propagation velocity measured by color m-mode echocardiography was used to determine diastolic function.


RESULTS
There was a positive correlation between isovolumic relaxation time and QTd, as well as negative correlation existed between left ventricular flow propagation velocity (LVFPV) and QTd. The QTd was greater and LVFPV was lower in patients with anterior myocardial infarction as compared with those with inferior MI.


CONCLUSIONS
There is an association between electrical dispersion and left ventricular filling abnormalities in patients with acute myocardial infarction.
Enar
S
S
Institute of Cardiology, Istanbul. sibelenar@superonline.com
Ozkan
A A
AA
Pehlivanoğlu
S
S
Enar
R
R
D003971:Diastole; D004452:Echocardiography; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000000981:diagnostic imaging / Q000503:physiopathology*; D013318:Stroke Volume; D018487:Ventricular Dysfunction, Left / Q000000981:diagnostic imaging / Q000503:physiopathology; D018497:Ventricular Dysfunction, Right / Q000000981:diagnostic imaging / Q000503:physiopathology