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The Relationship Between QT Dispersion and Left and Right Ventricular Diastolic Dysfunction in Patients With Myocardial Infarction [Anatol J Cardiol]
Anatol J Cardiol. 2001; 1(4): 266-271

The Relationship Between QT Dispersion and Left and Right Ventricular Diastolic Dysfunction in Patients With Myocardial Infarction

Sibel Enar1, Alev Arat Özkan1, Seçkin Pehlivanoğlu2, Rasim Enar3
1İstanbul Üniversitesi Kardiyoloji Enstitüsü
2İstanbul Üniversitesi, Cerrahpaşa Tıp Fakültesi, Kardiyoloji Anabilimdalı, İstanbul, Türkiye
3İstanbul Üniversitesi Kardiyoloji Enstitüsü, İstanbul

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. Conclusion: There is an association between electrical dispersion and left ventricular filling abnormalities in patients with acute myocardial infarction.

Keywords: Color M-mode echocardiography, QT dispersion, myocardial infarction


Sibel Enar, Alev Arat Özkan, Seçkin Pehlivanoğlu, Rasim Enar. The Relationship Between QT Dispersion and Left and Right Ventricular Diastolic Dysfunction in Patients With Myocardial Infarction. Anatol J Cardiol. 2001; 1(4): 266-271


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