摘要
目的 探讨小剂量多巴酚丁胺负荷超声心动图 (L DDSE)预测心肌梗死患者冠脉血运重建(CRV)术后心功能改善的价值。方法 成功行 CRV术的心肌梗死患者 30例 ,CRV术前后分别行 L DDSE及静息2 - DE检查。将试验时检出的功能改善节段与 CRV术后相应节段收缩功能改善与否的实际情况对比 ,计算 L DDSE预测心室功能改善的敏感性、特异性、准确性。结果 Dob 5 ,10μg/ kg.min 2 - DE预测心室功能改善的敏感性分别为 73.0 % ,89.6 % ;特异性分别为 81.7% ,82 .8% ;准确性分别为 76 .9% ,86 .5 %。结论 L DDSE是一种安全、简便、经济 ,可广泛应用的无创预测心功能改善的有价值的方法。
Objective The aim of this study was to assess the value in predicting recovery of ventricular function after coronary revascularization (CRV) using low-dose dobutamine stress echocardiography(LDDSE) in patients with myocardial infarction (MI).Methods Thirty patients with MI,who were scheduled to undergo successfully CRV,underwent 2-DE and LDDSE test within one week before CRV,and the follow-up 1～3 months after CRV.Compared the pre-CRV with the post-CRV actual contractile improvement of corresponding segments to calculate the sensitivity ,specificity, and accuracy of the LDDSE tests for predicting ventricular functional improvement.Results Compared with the resting values, wall motion score index (WMSI) and LVEF had significant changes both the Dob 10 μg/kg.min stage and post-CRV 2-DE. The sensitivity of Dob 5 and 10 μg/kg.min in 2-DE test was 73.0% and 89.6% respectively. The specificity of them was 81.7% and 82.8% respectively;the accuracy of them was 76.9% and 86.5% respectively.Conclusions LDDSE is a simple,less expensive,widely available method to predict ventricular functional recovery in the patients with MI after CRV.
出处
《中国超声诊断杂志》
2004年第10期747-751,共5页
Chinese Journal of Ultrasound Diagnosis
