彩色多普勒超声对锁骨下动脉窃血综合征的诊断价值

Diagnosis of subclavian steal syndrome by color Doppler ultrasound

目的:评价彩色多普勒超声对锁骨下动脉窃血综合征(SSS)的诊断价值,并对SSS的流行病学状况进行初步研究。方法:对5 362例接受颈动脉彩色多普勒超声检查的患者进行双上肢血压检测,对收缩压差(PD)>20 mmHg的患肢进行详细研究。结果:254例PD>20 mmHg。完全窃血121例、部分窃血86例,无窃血47例。207例诊断为SSS,43例有明显症状,其中后脑循环症状36例,心肌缺血4例,上肢缺血3例。PD值越大,症状越明显。结论:彩色多普勒超声对诊断SSS具有便捷、无创、重复性好等特点,是SSS的首选诊断方法。

Objective： To evaluate the diagnostic value of color Doppler ultrasound for subclavian steal syndrome（SSS）,and investigate the epidemiology of SSS.Methods： A total of 5 362 patients receiving duplex ultrasound of the carotid arteries underwent bilateral arm pressure measurements.Those with pressure difference（PD） higher than 20 mmHg were further examined.Results： The PD was higher than 20 mmHg in 254 patients.The SSS was complete in 121 patients,partial in 86,and absent in 47.Of the 207 SSS patients,43 had obvious symptoms,including the symptoms of posterior circulation in 36,cardiac ischemia in 4,and arm ischemia in 3.The more PD value,the more obvious symptoms occurred.Conclusion： Color Doppler ultrasound is convenient,noninvasive and can be used repeatedly for diagnosis of SSS,which should be taken as the preferred diagnostic tool for SSS.