| 徐琳,吴雅峰,胡大一,边红,吴江.多巴酚丁胺负荷试验对急性心肌梗死后心电图ST 段不同下降幅度患者的左心功能和存活心肌的评价[J].中国医学影像技术,2000,16(12):1052~1054 |
| 多巴酚丁胺负荷试验对急性心肌梗死后心电图ST 段不同下降幅度患者的左心功能和存活心肌的评价 |
| Evaluation on Left Ventricular Function and Viable Myocardium by Dobutamine Stress Echo in Patients with Acute Myocardial Infarction with Different Extent of ST Segments Elevation Resolution |
| 投稿时间：2000-06-17 |
| DOI： |
| 中文关键词: 急性心肌梗死 心电图 超声心动图负荷试验 |
| 英文关键词:Acute myocardial infarction Electrocardiograms Stress echocardiography |
| 基金项目: |
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| 中文摘要: |
| 目的对AMI 后心电图抬高ST 段不同下降幅度患者的左心功能和存活心肌进行观察。方法接受直
接PTCA 的AMI 患者50 例,比较PTCA 前后心电图ST 段下降幅度并分为两组,A 组:ST 段下降≥50 % ,B 组: ST
段下降< 50 %。所有患者均行多巴酚丁胺试验。结果A 组EDVI、ESVI 明显小于B 组(48.74 vs 58.05 ,18.73 vs
25.76 , P < 0.05) ,LVEF A 组明显高于B 组(63.49 % vs 55.12 % , P < 0.05) 。基础及负荷状态GWMSI 和IWMSI A
组均明显小于B 组(1.16 vs 1.32 ,2.11 vs 2.47 ;1.06 vs 1.22 ,1.39 vs 1.98 ; P < 0.05) 。无存活心肌者共14 例,A 组
8 例,B 组6 例,两组间无统计学差异。结论AMI 直接PTCA 后ST 段下降幅度≥50 %组的左心功能和室壁运动的
恢复明显优于下降幅度< 50 %组。 |
| 英文摘要: |
| Objective To evaluate left ventricular function and viable myocardium in patients with acute myocardial infarction (AMI) with different extent of ST segments elevation resolution. Methods Fifty patients with AMI who underwent direct percutaneous transluminal coronary angioplasty ( PTCA) successfully were selected. All cases were underwent
low-dose dobutamine stress echocardiography at 7 ±2 days after AMI. The extent of the ST segments elevation resolution on
electrocardiogram before and after direct PTCA were analysed. All patients were divided into two groups according to the
extent of ST segments elevation resolution. Group A : ST segments elvation resolution ≥50 %( n = 29) ; Group B : ST segments elevation resolution < 50 % ( n = 21) . Results Left ventricular end-systolic-volume index and end-diastolic-volume
index of group A were significantly smaller than that of group B. Left ventricular ejection fraction of group A were higher
than that of group B. Global wall motion score index and infarct-zone wall motion score index of group A were smaller than
that of group B. There were 14 patients without infarct-zone viability , 8 patients in group A and 6 cases were in group B.
There were no significant difference between the two groups. Conclution Group A has better left ventricular function and
recovery of infarct-zone wall motion than that of group B after AMI. |
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