锁骨下动脉窃血综合征(subclavian steal syndrome,SSS)是锁骨下动脉或无名动脉近心端狭窄或闭塞,其远端血管内压力明显下降,导致脑血流先经Willis环,再经同侧椎动脉虹吸引流,使部分脑血流逆行灌入患侧上肢动脉,从而引起脑局部缺血。既往临床诊断该病甚少,近年随着彩色多普勒超声在颈部血管疾病诊断中的广泛应用,诊断率不断增加[1]。现将我院临床所见3例SSS患者情况报告如下。 Subclavian steal syndrome (SSS) is a stenosis or occlusion of the proximal end of the subclavian artery or unnamed artery with a significant decrease in distal intravascular pressure resulting in cerebral blood flow first passing through the Willis ring, Vertebral artery siphon drainage, so that part of the retrograde cerebral blood flow into the affected side of the upper extremity arteries, causing cerebral ischemia. Previous clinical diagnosis of the disease rarely, in recent years with color Doppler ultrasound in the diagnosis of cervical vascular disease is widely used, the diagnosis rate continues to increase [1]. Now in our hospital clinical findings of 3 cases of SSS patients are as follows.