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Sex-Related Differences in Outcomes of Endovascular Treatment of Distal Medium Vessel Occlusion Strokes
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DOI：10.1007/s00062-026-01632-w.png)
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Abstract
En 中文
BackgroundSex-related differences in outcomes after mechanical thrombectomy (MT) for distal medium vessel occlusion (DMVO) stroke remain uncertain. While unadjusted differences have been reported in stroke populations, it is unclear whether biological sex independently influences outcomes after accounting for major prognostic factors.MethodsWe performed a retrospective, multicenter analysis of the MAD-MT registry. Patients with acute DMVO who underwent MT were included. Propensity score matching (PSM) was employed. The primary outcome was functional independence (modified Rankin Scale [mRS] score 0-2) at 90 days. Secondary outcomes included excellent outcome (mRS 0-1), day 1 NIHSS shift, and reperfusion success. Safety outcomes included mortality and symptomatic intracerebral hemorrhage.ResultsBefore matching, 1147 females and 1062 males were included. After 1:1 PSM (748 patients in each group), the groups were balanced in baseline characteristics. The median age was 75 years in both groups. At 90 days, 51% of females and 54% of males achieved mRS 0-2 (P = 0.38). NIHSS shift from baseline to day 1 was similar (median -2 in both groups), and successful reperfusion (Thrombolysis in Cerebral Infarction 2b-3) was achieved in 86% of females and 89% of males (P = 0.18). Mortality was 18.4% in females and 15.5% in males (P = 0.11). Symptomatic intracerebral hemorrhage occurred in 8.3% of females and 7.7% of males (P = 0.67).ConclusionsAfter adjustment for age, baseline disability, and vascular risk factors, biological sex was not independently associated with functional or safety outcomes following mechanical thrombectomy for DMVO stroke.
Keywords:
Stroke
Mechanical Thrombectomy
Distal Medium Vessel Occlusion
Sex Differences
Endovascular Treatment
Functional Outcome
Ischemic Stroke
Neurointervention
Propensity Score Matching
Multicenter Study
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