KOR

e-Article

Thrombectomy in ischemic stroke patients with tandem occlusion in the posterior versus anterior circulation
Document Type
Original Paper
Source
Neurological Sciences. :1-10
Subject
Stroke
Thrombectomy
Tandem occlusion
Anterior LVO
Posterior LVO
Language
English
ISSN
1590-1874
1590-3478
Abstract
Background: Mechanical thrombectomy (MT) was found to be beneficial in acute ischemic stroke patients with anterior tandem occlusion (a-TO). Instead, little is known about the effectiveness of MT in stroke patients with posterior tandem occlusion (p-TO). We aimed to compare MT within 24 h from last known well time in ischemic stroke patients with p-TO versus a-TO.Methods: We conducted a cohort study on prospectively collected data of patients registered in the Italian Registry of Endovascular Treatment in Acute Stroke (IRETAS) who were treated with MT within 24 h from last known well time for acute ischemic stroke with p-TO (n = 275) or a-TO (n = 1853).Results: After adjustment for unbalanced pre-procedure variables (year 2015–2021, age, sex, NIHSS score, ASPECTS, and time strata for puncture groin) and pre-stroke mRS score as pre-defined predictor, p-TO was significantly associated with lower probability of mRS score 0–2 (OR 0.415, 95% CI 0.268–0.644) and with higher risk of death (OR 2.813, 95% CI 2.080–3.805) at 3 months. After adjustment for unbalanced procedural and post-procedure variables (IVT, general anesthesia, TICI 3, and 24-h HT) and pre-stroke mRS score as pre-defined predictor, association between p-TO and lower probability of mRS score 0–2 (OR 0.444, 95% CI 0.304–0.649) and association between p-TO and with higher risk of death (OR 2.971, 95% CI 1.993–4.429) remained significant.Conclusions: MT within 24 h from last known well time in ischemic stroke patients with p-TO versus a-TO was associated with worse outcomes at 3 months.