Vascular Access Complexity and Thrombectomy Efficiency in Proximal MCA M1 Occlusion: Evaluation of the Bovine Aortic Arch–Dolichoarteriopathy Score

Background and Objective: In this study, it was aimed to investigate the relationship between the Bovine Aortic Arch–Dolichoarteriopathy (B.A.D.) score and the procedural characteristics of mechanical thrombectomy, recanalization success, and 90-day functional outcomes in patients with acute ischemic stroke with proximal M1 occlusion of the middle cerebral artery (MCA). Materials and Method: A total of 220 adult patients who underwent mechanical thrombectomy for proximal MCA M1 occlusion were included in this retrospective, single-center cohort study. The patients were divided into good B.A.D. (<2; n = 143) and poor B.A.D. (≥2; n = 77) groups. Admission National Institutes of Health Stroke Scale (NIHSS) and Alberta Stroke Program Early CT Score (ASPECTS) scores, collateral status, thrombectomy time intervals, number of passes, first-pass effect (FPE), and Modified Thrombolysis in Cerebral Infarction (mTICI) recanalization grades were evaluated. The primary outcome was functional independence at day 90 (mRS 0–2). Associations with procedural and clinical outcomes were evaluated using multivariable logistic and linear regression analyses.