• Jinghan Xu, Meiting Zhuang, Guanshui Bao, Yu Zhai, Guo-Yuan Yang, Gang Xue, and Qiang Li.
• Department of Neurology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine.
• Medicine (Baltimore). 2020 Feb 1; 99 (9): e19247.

RationaleThe capsular warning syndrome (CWS) is a rare and special type of transient ischemic attacks (TIAs) syndrome. The pathophysiology of CWS is very complicate, and intracranial atherosclerotic stenosis (ICAS) is rare cause. Moreover, the effective and standard therapy has not yet been established.Patient ConcernsA 47-year-old man experienced repeated and exacerbated TIAs of right hemiparesis and dysarthria. Fourteen hours after the first episode of TIAs, he developed more severe right hemiparesis and dysarthria, the National Institute of Health Stroke Scale (NIHSS) score was 12 points, and did not recover in a long time.DiagnosisThe computed tomography (CT) angiography displayed high stenosis in the M1 segment of the left middle cerebral artery. The patient was diagnosed as CWS with ICAS.InterventionsLoading dose of clopidogrel and aspirin were started but were ineffective, then we used recombinant tissue plasminogen (r-tPA) for thrombolysis therapy after repeat CT scan that showed small acute infarcts in the right putamen and no bleeding.OutcomesThe patient was successfully treated by r-tPA intravenous thrombolysis after loading dose of dual-anti-platelet. He recovered rapidly, and the NIHSS score was 0 point, modified Rankin Scale score was 0 point, and Barthel Index score was 100 points at 3-month follow-up.Lessonsr-tPA combined with loading dose of dual antiplatelet appears safe and effective in carefully selected CWS patients with ICAS. The collection of similar cases and further randomized controlled trial research would be desirable.

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