Evaluation of doppler echocardiographic patterns of left ventricular filling in the patients with recent acute myocardial infarction

摘要

Background Diastolic function can be assessed by Doppler-derived left ventricular(LV) filling patterns. E/A ratio Methods LV filling patterns were studied with Doppler echocardiography in 10 healthy subjects and 27 patients with recent acute myocardial infarction. Cardiac catherterization was performed in the 11±2 days after onset of acute myocardial infarction and left ventricular end-diastolic pressure(LVEDP) and myocardial stiffiness index(MSI) were studied. Results In patients with acute myocardial infarction, IVRT was significantly prolonged ; E/A ratio and deceleration time were decreased but not significantly different from those of normal subjects. In the patient's group of E/A>1,IVRT and atrial filling fraction(AFF) were significantly shortened, and LVEDP was significantly increased, compared to those of the patient's group of E/A1 and also was well correlated with LVEDP(r=0.8, p Conclusions Thus we conclude that normal of increased E/A ratio in recent acute myocardial infarction may reflect increased LVEDP due to increased myocardial stiffness.