The Role of Ultrasound and Transcranial Doppler in the Staging Diagnosis of Subclavian Steal Syndrome and Its Effect on Prognosis Evaluation
Objective:To investigate the role of ultrasound and transcranial Doppler in the staging diagnosis of subclavian steal syndrome and its effect on prognosis evaluation. Methods:Using conventional cervical vascular color Doppler ultrasound combined with transcranial Doppler examination,with DSA examination as the diagnostic criteria,80 patients with subclavian steal syndrome (SSS) were observed and the prognosis was evaluated. Results:Type Ⅰ ( 27 cases ) ultrasound showed that the blood flow of subclavian artery increased slightly,and the blood flow spectrum of extracranial vertebral artery was normal. Transcranial Doppler showed that the blood flow spectrum of vertebral artery was normal,and there was no steal phenomenon. Phase Ⅱ(22 cases) ultrasound showed a significant increase in subclavian artery blood flow,mild reversal. Transcranial Doppler showed a slight increase in blood flow in the middle cerebral artery and vertebral artery,and mild steal. Ultrasound in stage Ⅲ(17 cases) showed a significant increase in subclavian artery blood flow,which was significantly reversed.Transcranial Doppler showed that the blood flow of middle cerebral artery and vertebral artery increased significantly. Ultrasound in stage Ⅳ (14 cases) showed that the blood flow of subclavian artery was extremely increased and seriously reversed. Transcranial Doppler showed that the blood flow of middle cerebral artery and vertebral artery was extremely increased,which was seriously stolen. The symptoms of 73 patients were improved or disappeared,and 7 patients needed further treatment. Ultrasound showed that the arterial blood flow of 49 patients was significantly improved,21 patients needed interventional therapy or surgery,and 10 patients needed adjustment treatment for new stenosis or occlusion. Complications occurred in 10 cases:4 cases of myocardial infarction,2 cases of stroke,4 cases of renal failure. The remaining 70 cases had no complications,and the overall incidence was low. Conclusion:Ultrasound and transcranial Doppler are very important for the diagnosis and prognosis evaluation of subclavian steal syndrome,and provide help for clinical practice.
万方数据
维普
