RT Journal Article SR Electronic T1 Leukoaraiosis severity and outcomes after mechanical thrombectomy with stent-retriever devices in acute ischemic stroke JF Journal of NeuroInterventional Surgery JO J NeuroIntervent Surg FD BMJ Publishing Group Ltd. SP 137 OP 140 DO 10.1136/neurintsurg-2018-014018 VO 11 IS 2 A1 Yongtao Guo A1 Wenjie Zi A1 Yue Wan A1 Shuai Zhang A1 Bo Sun A1 Xianjin Shang A1 Shun Li A1 Yongjie Bai A1 Zibao Li A1 Dequan Zheng A1 Xinfeng Liu YR 2019 UL http://jnis.bmj.com/content/11/2/137.abstract AB Background and purpose The aim of the study was to evaluate whether leukoaraiosis severity is associated with outcome in acute stroke patients undergoing mechanical thrombectomy with stent-retriever devices.Methods In this retrospective multicenter study, we evaluated 251 acute stroke patients (pretreatment National Institutes of Health Stroke Scale score ≥8) treated with stent-retriever devices. Leukoaraiosis severity was graded as 0–2 (absent-to-moderate) versus 3–4 (severe) according to the van Swieten scale. The main clinical outcome was the proportion of good functional outcome, defined as a modified Rankin Scale of 0–2 at 90 days.Results Significantly fewer patients in the severe LA group than in the absent-to-moderate LA group achieved a good functional outcome (18.4% vs 50.2%, P<0.001). In multivariable analysis, severe leukoaraiosis was a significant negative predictor of good functional outcome at 90 days (OR, 0.27; 95% CI 0.10–0.77; P=0.014).Conclusions The severity of leukoaraiosis is independently associated with 90-day functional outcome in acute stroke patients undergoing mechanical thrombectomy with stent-retriever devices.