Specific Tissue Doppler Predictors of Preserved Systolic and Diastolic Left Ventricular Function after an Acute Anterior Myocardial Infarction

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概要

• 論文の詳細を見る

• The degree of left ventricular (LV) dysfunction determines the outcome of patients suffering an acute anterior myocardial infarction (AAMI). Many recent studies have utilized tissue Doppler echocardiography (TDE) parameters in the assessment of LV function. We sought to investigate whether some variables easily obtained from TDE profiles of mitral annulus corners would predict a relatively preserved LV global function traditionally assessed with ejection fraction (EF) and deceleration time (DT), within the acute phase of AAMI. Included were 50 consecutive patients with a first AAMI. Standard echocardiography and TDE of mitral annulus were performed within 36 hours of admission. Pulsed wave sample volumes were set at the septal, lateral, anterior, and inferior corners of the mitral annulus. Preserved LV function was defined as an EF > 40% together with a DT ≥ 140 ms and < 220 ms. An inferior annular systolic velocity of > 7.5 cm/s predicts preserved global left ventricular function with a sensitivity of 81% and specificity of 71%. An anterior mitral annular early diastolic velocity of > 8cm/s had a sensitivity of 69% and specificity of 85%. When these two velocities both exceed the limits above, such a combined index yielded a sensitivity of 69%, specificity of 94%, and an overall diagnostic accuracy of 86% for the estimation of preserved LV global function. The parameters derived from TDE profiles of inferior and anterior mitral annulus corners provide valuable information to predict preserved global left ventricular function during the early period of AAMI.

著者

• Dagdeviren Bahadir

  Siyami Ersek Thoracic And Cardiovascular Surgery Center Department Of Cardiology

• Akdemir Osman

  Department of Cardiology, School of Medicine, Trakya University

• Yildiz Mustafa

  Department of Cardiology, School of Medicine, Trakya University

• Gul Cetin

  Department of Cardiology, School of Medicine, Trakya University

• Ozbay Gultac

  Department of Cardiology, School of Medicine, Trakya University

• Sürücü Hüseyin

  Department of Cardiology, School of Medicine, Trakya University

• Dagdeviren Bahadir

  Siyami Ersek Cardiovascular and Thoracic Surgery Center

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