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彩色多普勒超声对急性心肌梗塞病人左房功能的分析 被引量:10

Analysis of Left Atrial Function in Patients with Acute Myocardial Infarction by Two dimensional Color Doppler Eehocardiography
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摘要 应用二维彩色多普勒超声技术评价急性心肌梗塞病人的左房功能。结果显示,急性心肌梗塞组与正常对照组比较其各指标均有显著性差异(P<0.001或P<0.05)。左房内径(LADd)、左房容积(LAV)、左房压力(LAP)、左房张力(LAT)、左房射血期(LAET)、左房每搏量(LASV)、左房射血分数(LAEF)和A峰均增加,而E峰、E/A比值、射血前期(LAPEP)和LAPEP/LAET比值降低。结论:急性心肌梗塞后,左房代偿性收缩功能增强,维持一定的左房与左室间的压差(AVPG),对增加左室充盈量起重要作用,符合Frank—starling定律。 The left atrial function of 32 cases patient with acute myocardial infarction (AMI) and 32normal subjects (divided into AMI group and control group) was analysed by two -dimensional color Doppler echocardiography. The results showed that indexes of left atrial function in AMI group were significantly different compared with those control group (P<0. 001 or P<0. 05). Left atrial end-diastolic dimension (LADd ), left atrial volume (LAV ), left atrial pressure (LAP ); left atrial tension (LAT), left atrial ejection time (LAET), left atrial stroke volume (LASV), left atrial ejection fraction (LAEF) and peak velocity A of AMI group were more increased,but peak velocity E,peak velocity E/A ratio leftatrial pre - ejection perid (I.APEP)and LAPEP/LAET of AMI group were significantly decreased. It is concluded that after AMI, left atrial compensatory systolic function was enhanced to keep constant atrial ventricular pressure gradient(AVPG),which is important to increase left ventricular filling. This compensation mechanism of left atrium corresponds to Frank -Starling'S law.
机构地区 淄博市中心医院
出处 《中华超声影像学杂志》 CSCD 1994年第3期109-111,共3页 Chinese Journal of Ultrasonography
关键词 心肌梗塞 超声波诊断 心房功能 two -dimensional color Doppler echocardiography I left atrial function myocardial infarction left ventricular diastolic function
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