Analysis of Subclavian Steal Syndrome Companied with Stenosis or Occlusion of Multi-Arteries in Neck by Color Doppler Ultrasonography

Objective To analyze the causes of subclavian steal syndrome,hemodynamics and the relation to the reversal of blood flow in the ipsilateral vertebral artery and multi arteries in neck. Methods Forty nine patients diagnosed as subclavian steal syndrome by clinic were examined by color Doppler ultrasound. Results The main causes of subclavian steal syndrome were atherosclerosis and aortoarteritis. Conclusion When patients with subclavian steal syndrome companied with stenosis or occlusion of other carotid arteries,we can't estimate the degree of stenosis of proximal subclavian artery or innominate artery depending only on the flow of vertebral artery.