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Risk of stroke in imaging-proven subclavian steal syndrome
Xia Tan1, Harrison Xiao Bai2, Zhili Wang1
1Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.
Abstract:
To determine the risk of stroke in patients with subclavian steal syndrome (SSS). We identified 165 patients with imaging-provenSSS from two hospitals. Demographic, clinical and imaging data were retrospectively collected. Patients were followed up for stroke events. Stroke occurred in 43 patients with a median follow-up of 28months. Seven of these cases were identified prospectively and 36 cases retrospectively. On multivariate analysis, presence of symptoms at presentation (p=0.029) was a significant predictor of stroke. Presence of symptoms at presentation predicted stroke in imaging-proven SSS.