International journal of stroke : official journal of the International Stroke Society · 2022
Thrombectomy in basilar artery occlusion.
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Sommer Peter, Scharer Sebastian, Posekany Alexandra, Serles Wolfgang, Marko Martha, Langer Agnes, Fertl Elisabeth, Sykora Marek, Lang Wilfried, Dafert Sebastian, Seiringer Fiona, Kiechl Stefan, Knoflach Michael, Greisenegger Stefan
Аннотация
BACKGROUND AND PURPOSE: The benefit of thrombectomy (TE) for acute ischemic stroke (AIS) in patients suffering basilar artery occlusion (BAO) is still unclear. Our aim was to analyze functional outcome after 3 months in BAO compared to anterior circulation large vessel occlusion (ACLVO) in a nationwide registry.
METHODS: Patients enrolled into the Austrian Endostroke Registry from 2013 to 2018 were analyzed. We used propensity score matching to control for imbalances and to compare patients with BAO and ACLVO. The primary outcome was favorable functional outcome after 3 months measured by the modified Rankin Scale (mRS) (0-2). Multivariate models were applied to estimate the effect of localization (BAO vs ACLVO).
RESULTS: In total, 2288 patients underwent TE for AIS with proximal vessel occlusion, of these 267 with BAO. Two hundred and sixty-four patients with BAO were matched to 264 patients with ACLVO. Baseline characteristics were well-balanced. The 90-day mortality did not significantly differ between patients with BAO and ACLVO. In a multivariate logistic regression model, we did not detect a significant difference in functional outcome between BAO and ACLVO (odds ratio for favorable outcome defined as mRS = 0-2: 1.19; 95% confidence interval (CI) = 0.78-1.81; p = 0.42). In patients with an onset-to-door-time ⩾270 min, TE of BAO was associated with poor functional outcome defined as mRS 3-6 (odds ratio (OR) = 3.97; 95% CI = 1.32-11.94; p = 0.01) as compared to ACLVO.
CONCLUSION: In this study, functional outcome did not differ after TE in patients with BAO and ACLVO overall; however, we detected an association of BAO with poor outcome in patients arriving late.
METHODS: Patients enrolled into the Austrian Endostroke Registry from 2013 to 2018 were analyzed. We used propensity score matching to control for imbalances and to compare patients with BAO and ACLVO. The primary outcome was favorable functional outcome after 3 months measured by the modified Rankin Scale (mRS) (0-2). Multivariate models were applied to estimate the effect of localization (BAO vs ACLVO).
RESULTS: In total, 2288 patients underwent TE for AIS with proximal vessel occlusion, of these 267 with BAO. Two hundred and sixty-four patients with BAO were matched to 264 patients with ACLVO. Baseline characteristics were well-balanced. The 90-day mortality did not significantly differ between patients with BAO and ACLVO. In a multivariate logistic regression model, we did not detect a significant difference in functional outcome between BAO and ACLVO (odds ratio for favorable outcome defined as mRS = 0-2: 1.19; 95% confidence interval (CI) = 0.78-1.81; p = 0.42). In patients with an onset-to-door-time ⩾270 min, TE of BAO was associated with poor functional outcome defined as mRS 3-6 (odds ratio (OR) = 3.97; 95% CI = 1.32-11.94; p = 0.01) as compared to ACLVO.
CONCLUSION: In this study, functional outcome did not differ after TE in patients with BAO and ACLVO overall; however, we detected an association of BAO with poor outcome in patients arriving late.