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  • Title: [Comparison of the QRS score and the left ventricular ejection fraction in patients after acute myocardial infarct].
    Author: Janousek S, Stĕpánková S, Janousková I.
    Journal: Vnitr Lek; 1989 May; 35(5):417-24. PubMed ID: 2763473.
    Abstract:
    In 90 subjects, mean age 52 +/- 9 years with a first acute myocardial infarction (AIM) the authors evaluated the QRS score by Wagner's method. The assembled values were compared by linear regression with values of the ejection fraction (EF) of the left ventricle (LV), calculated according to Dodge's method from left-sided ventriculography made during the same period (on average 45 +/- 9 days after the development of AIM). For the entire group a correlation r = -0.43 (p less than 0.001) was obtained, for the sub-group of patients with AIM of the anterior wall (n = 44), r = -0.57 (p less than 0.001), correlation was found in patients with AIM of the lower wall (n = 27), r = -0.11 (p greater than 0.1). For the sub-group of patients of the whole group under the age of 60 years incl. (n = 60) the correlation was r = -0.52 (p less than 0.001), in patients above 60 years (n = 22) no correlation was found (r = -0.21, p greater than 0.1) between the QRS score and the EF of the LV. Calculation of the QRS score is a conventient auxiliary method for assessment of the affection in AIM of the anterior wall and in patients under 60 years of age.
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