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:: Volume 4, Issue 1 (spring 2004) ::
J Ardabil Univ Med Sci 2004, 4(1): 58-63 Back to browse issues page
The Relationship Between of Electrocardiographic Q Wave and Left Ventricular Function in Patients with Acute Myocardial Infarction After Thrombolytic Therapy
Hosein Noug , Ali Khodadadi, Hamid Bakhshi
Abstract:   (6320 Views)

  Background &Objective: Infarctian size is the most important prognostic factor in patients with acute myocardial infarction (AMI). Reperfusion therapy using thromboliatics is the most important measure in order to limit the infarction, size. Infarction size on the other hand, associates directly with left ventricular (LV) function. The presence of Q wave on electrocardiogram (ECG) after thrombolytic therapy is associated with increased mortality during first months after AMI. Moreover electrocardiographic changes after thrombolytic therapy can predict LV function. This study is an attempt to evaluate the relationship between electrocardiographic Q wave and LV function after thrmobolytic therapy in patients with MI.

  Methods: 176 patients with first episode of AMI (diagnosed based on WHO criteria) who were receiving streptokinase took part in this analytical study. ECG of the first day after admission and ECG of discharge day (usually the sixth day) were evaluated in terms of the presence of pathologic Q wave. LV function was evaluated by Echocardiography using Simpson method. The data were analyzed by SPSS program using chi-square test.

  Results: On discharge day 82.4% of the patients had pathologic Q wave and 17.6% were without it. 51.6% of patients without pathologic Q wave, had normal LV function (LVGF>55%) while 26.9% of them had Q wave (p= 0.001). 73.3% of males and 56.4% of females had Q wave on ECG.

  Conclusions: Presence of Q wave on ECG in patients with AMI after thrombolytic therapy correlates with LV function and indicates impaired LV function in these patients.

Keywords: Left Ventricular Function, Myocardial Infarction, Thrmbolytic, Q wave
Full-Text [PDF 121 kb]   (1024 Downloads)    
Type of Study: article | Subject: Special
Received: 2002/10/7 | Accepted: 2004/02/2 | Published: 2004/09/3
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Noug H, Khodadadi A, Bakhshi H. The Relationship Between of Electrocardiographic Q Wave and Left Ventricular Function in Patients with Acute Myocardial Infarction After Thrombolytic Therapy. J Ardabil Univ Med Sci. 2004; 4 (1) :58-63
URL: http://jarums.arums.ac.ir/article-1-507-en.html


Volume 4, Issue 1 (spring 2004) Back to browse issues page
مجله دانشگاه علوم پزشکی اردبیل Journal of Ardabil University of Medical Sciences
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