Early recurrent ischemic events after mechanical thrombectomy: effect of post-treatment intracranial hemorrhage.

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Patients with intracranial hemorrhages (ICH) after mechanical thrombectomy (MT) may have a higher risk of early recurrent embolism (ERE) because of delayed initiation of anticoagulants. We assessed the rate of ischemic events in the early period after MT and the association with post-MT ICH.Patients who underwent MT in our institute were retrospectively reviewed. ERE was defined as recurrent ischemic stroke and systemic embolism within 14 days after MT. The association between ERE and parenchymal hematoma (PH) was assessed. Multivariable regression analysis and inverse probability of treatment weighting was used to adjust for differences in baseline characteristics between patients with and without PH.A total of 307 patients (median age, 78 years; female, 47%; median baseline National Institutes of Health Stroke Scale score, 19) were included. ERE was observed in 12 of 307 patients (8 strokes, 4 systemic embolisms; 3.9%). Median time from MT to ERE was 6.5 days (IQR, 3-8 days). PH occurred in 21 patients (6.8%). Median time from MT to initiating oral anticoagulants was longer in patients with PH (8 days) than in those without (3 days) (p 


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Authors: Junpei Koge, Kanta Tanaka, Takeshi Yoshimoto, Masayuki Shiozawa, Hiroshi Yamagami, Tetsu Satow, Jun C Takahashi, Masafumi Ihara, Masatoshi Koga, Jun-Ichi Kira, Kazunori Toyoda

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