[The changes in and clinical significance of Doppler echocardiography in patients with acute myocardial infarction].
To evaluate the changes of cf cardiac function in patients with acute myocardial infarction (AMI) and compare the difference between patients and controls, Doppler echocardiographic examination was performed in 80 patients within 72 hours after the heart attack and 97 matched normal subjects. The mitral, tricuspid, pulmonary and aortic flow velocity was recorded with pulsed Doppler. The peak early diastolic flow velocity (EPV), peak late diastolic velocity (APV), ventricular ejection time (VET), pre-ejection time (pre ET) and velocity-time integral (VTI) of each flow were measured. The EPV of mitral and tricuspid flow and the VTI and VET of aortic and pulmonary flow were significantly decreased. APV was increased and EPV/APV ratio was decreased in AMI patients. Thus, Doppler echocardiographic evaluation of ventricular diastolic and systolic function provides an excellent tool for early detection and noninvasive monitoring in patients with AMI.
Sun
J P
JP
Zhi
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D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001783:Blood Flow Velocity; D015150:Echocardiography, Doppler; D005260:Female; D006321:Heart / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D009203:Myocardial Infarction / Q000503:physiopathology*