经食管超声检测主动脉粥样斑块对冠心病的预测价值

Atherosclerotic Aortic Plaque Detected by Transesophageal Echocardiography Predicts Coronary Artery Disease

为探讨主动脉粥样斑块对冠心病的预测价值，对冠状动脉造影确定的正常组（１３例）与冠心病组（３７例）共５０例行经食管超声（ＴＥＥ）检查其胸主动脉，内膜病变根据增厚程度分为Ⅰ～Ⅳ级，其中Ⅲ、Ⅳ级定为内膜斑块。结果表明主动脉粥样斑块对狭窄性冠状动脉病变预测的敏感性和阳性预测值为９１．９％；特异性和阴性预测值均为７６．９％。因此，ＴＥＥ检测胸主动脉粥样硬化可以作为评价冠状动脉粥样硬化病变及其程度的一个窗口。

The purpose of this investigation is to evaluate the predictive value of aortic atherosclerotic plaque for coronary artery disease (CAD). Transesophageal echocardiography(TEE) and coronary angiography were performed in the 50 cases. Coronary angiography demonstrated coronary stenosis ≥50% in 37 cases and normal in 13 cases. The intimal changes in thoracic aorta are classified intoⅠ Ⅳgrade and Ⅲ, Ⅳgrade are defined as atherosclerotic plaque, which was observed in 34 cases in group CAD and in 3 cases in normal group. The sensitivity and specificity of aortic plaque for CAD was 91.9% and 76.9% respectively. The accuracy was 88%. The 80 percent of cases had aortic plaque in patients with single vessel disease, 92 percent in two vessel disease and 100 percent in three vessel disease. Conclusion: TEE of thoracic aorta detecting atherosclerotic plaque is valuable for predicting coronary artery disease.