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FIG 9. Kaplan-Meier event-free survival from ipsilateral stroke for patients with near occlusion, pooled data from the NASCET and ECST. The 3-year intention-to-treat risk of ipsilateral stroke in was 15.1% for medically treated and 10.9% for surgically treated. The 3-year risk of ipsilateral stroke for medically treated patients who continued to receive medical therapy throughout the duration of the trial (on-treatment) was 18.3%.
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