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The atrioventricular plane displacement as a means of evaluating left ventricular systolic function in acute myocardial infarction
Author(s) -
Alam Mahbubul
Publication year - 1991
Publication title -
clinical cardiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.263
H-Index - 72
eISSN - 1932-8737
pISSN - 0160-9289
DOI - 10.1002/clc.4960140711
Subject(s) - medicine , ventricle , ejection fraction , cardiology , myocardial infarction , systole , displacement (psychology) , electrocardiography in myocardial infarction , fractional shortening , infarction , diastole , heart failure , blood pressure , psychology , psychotherapist
Displacement of the atrioventricular (AV) plane toward the cardiac apex in systole was studied quantitatively by echocardiography in 37 patients with first‐time acute myocardial infarction (MI) in order to evaluate left ventricular systolic function. The amplitude of AV plane displacement was recorded from the apex at four different sites corresponding to the septal, lateral, anterior, and posterior walls of the left ventricle from apical 4‐ and 2‐chamber views. The patients had a decreased displacement of the AV plane compared with controls which was more pronounced at the sites of infarction. The mean value of the AV plane displacement (AV mean) correlated linearly with the left ventricular (LV) ejection fraction calculated by radionuclide angiography (r = 0.87, p<0.001, SEE= 6.2). An AV mean of 10 mm or more had a high sensitivity (95%) and specificity (82%) in defining a normal ejection fraction (2 50%). A high correlation coefficient was found between LV wall motion index and the AV plane displacement. Thus, in acute MI the LV function can be assessed noninvasively using AV plane displacement.

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