[Motion of the mitral anulus and suitability of the motion amplitude for determination of left ventricular function in Q-type myocardial infarct].
Cardiac apex hardly changes its location during the time of cardiac cycle, but the mitral anulus--representing cardiac base--has a systolic descent toward the apex and in diastole moves to the left atrium. The whole amplitude of mitral anulus motion is so useful indicator of left ventricular systolic function as ejection fraction derived from enddiastolic and endsystolic parameters. Mitral anulus motion amplitude easy to measure noninvasively by echocardiography. Authors examined 110 patients with their first, Q-type acute myocardial infarction 7-10 days after the onset of symptoms. In the same time ejection fraction value was assessed by radionuclide ventriculography. Data of ejection fraction and mitral anulus motion amplitude were compared. Their conclusions: 1. mitral anulus motion amplitude well correlated with left ventricular ejection fraction 2. patients had a decreased mitral anulus motion amplitude at the site of infarction 3. investigation of mitral anulus motion amplitude is an useful and easy to make method to assess of systolic function of left ventricle in acute myocardial infarction.
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Békés Megyei Képviselötestület Pándy Kálmán Kórháza, Gyula, II. sz. Belgyógyászat.
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D004452:Echocardiography; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008943:Mitral Valve / Q000503:physiopathology; D009203:Myocardial Infarction / Q000000981:diagnostic imaging / Q000503:physiopathology*; D013599:Systole; D016277:Ventricular Function, Left
A mitralis anulus mozgása és mozgási amplitudójának alkalmassága a bal kamra funkció megítélésére acut Q-típusú myocardialis infarctusban.