Abstract 068: Basilar artery bifurcation anatomy as a determinant of recanalization and stroke outcome

Introduction Background: Thrombectomy improves outcomes in patients with basilar artery (BA) occlusion [1,2]. We hypothesized that the anatomic configuration of the BA bifurcation, classified as T‐ or Y‐shaped, may impact the outcome. Specifically, we expected that a T‐shaped BA would involve more d...

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Main Authors: Mohammad Hossein Abbasi, Ali Eltatawy, Steven R. Messé, Ashkan Mowla, Charles J. Prestigiacomo, Matthew S. Smith, Michela Rosso, Scott E. Kasner, Peyman Shirani
Format: Article
Language:English
Published: Wiley 2023-11-01
Series:Stroke: Vascular and Interventional Neurology
Online Access:https://www.ahajournals.org/doi/10.1161/SVIN.03.suppl_2.068
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author Mohammad Hossein Abbasi
Ali Eltatawy
Steven R. Messé
Ashkan Mowla
Charles J. Prestigiacomo
Matthew S. Smith
Michela Rosso
Scott E. Kasner
Peyman Shirani
author_facet Mohammad Hossein Abbasi
Ali Eltatawy
Steven R. Messé
Ashkan Mowla
Charles J. Prestigiacomo
Matthew S. Smith
Michela Rosso
Scott E. Kasner
Peyman Shirani
author_sort Mohammad Hossein Abbasi
collection DOAJ
description Introduction Background: Thrombectomy improves outcomes in patients with basilar artery (BA) occlusion [1,2]. We hypothesized that the anatomic configuration of the BA bifurcation, classified as T‐ or Y‐shaped, may impact the outcome. Specifically, we expected that a T‐shaped BA would involve more deep penetrating arteries of the midbrain and thalamus, leading to greater disability or death [3,4]. Methods In this 2‐center retrospective cohort study over seven years, we included patients with stroke due to distal BA occlusion and performed blinded classification of their BA anatomy as either T‐ or Y‐shaped [Figure 1]. The primary outcomes were favorable functional status at 90 days (modified Rankin Scale 0 – 2) and successful reperfusion (TICI scores 2B or 3). Results 70 patients (mean age 66 years, 36% women) were included. 38 had T‐ and 32 had Y‐shaped bifurcations. Baseline characteristics were similar for both groups, including demographics, treatment time, baseline NIHSS, THRIVE score, posterior circulation collateral score, and presence of tandem occlusion. Comparing the T‐ to the Y‐ shape, there was no difference in the likelihood of successful reperfusion (1.09 [0.52–2.27], p=1.00) nor 90‐day favorable mRS (0‐2) score (RR: 0.68 [0.37–1.27]; p=0.18). Similarly, mortality at 30 and 90 days were not significantly affected by the type of bifurcation. Conclusion The configuration of the basilar artery does not significantly impact reperfusion success or stroke outcome.
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spelling doaj.art-58d7f042ad2e4bd38aa21c9fe6b52e892024-04-05T10:51:56ZengWileyStroke: Vascular and Interventional Neurology2694-57462023-11-013S210.1161/SVIN.03.suppl_2.068Abstract 068: Basilar artery bifurcation anatomy as a determinant of recanalization and stroke outcomeMohammad Hossein Abbasi0Ali Eltatawy1Steven R. Messé2Ashkan Mowla3Charles J. Prestigiacomo4Matthew S. Smith5Michela Rosso6Scott E. Kasner7Peyman Shirani8Department of Neurology University of Pennsylvania Philadelphia PA USADepartment of Neurology University of Cincinnati College of Medicine Cincinnati OH USADepartment of Neurology University of Pennsylvania Philadelphia PA USADepartment of Neurological Surgery University of Southern California CA USADepartment of Neurological Surgery University of Cincinnati College of Medicine Cincinnati OH USADepartment of Neurology University of Cincinnati College of Medicine Cincinnati OH USADepartment of Neurology University of Pennsylvania Philadelphia PA USADepartment of Neurology University of Pennsylvania Philadelphia PA USADepartment of Neurology University of Cincinnati College of Medicine Cincinnati OH USAIntroduction Background: Thrombectomy improves outcomes in patients with basilar artery (BA) occlusion [1,2]. We hypothesized that the anatomic configuration of the BA bifurcation, classified as T‐ or Y‐shaped, may impact the outcome. Specifically, we expected that a T‐shaped BA would involve more deep penetrating arteries of the midbrain and thalamus, leading to greater disability or death [3,4]. Methods In this 2‐center retrospective cohort study over seven years, we included patients with stroke due to distal BA occlusion and performed blinded classification of their BA anatomy as either T‐ or Y‐shaped [Figure 1]. The primary outcomes were favorable functional status at 90 days (modified Rankin Scale 0 – 2) and successful reperfusion (TICI scores 2B or 3). Results 70 patients (mean age 66 years, 36% women) were included. 38 had T‐ and 32 had Y‐shaped bifurcations. Baseline characteristics were similar for both groups, including demographics, treatment time, baseline NIHSS, THRIVE score, posterior circulation collateral score, and presence of tandem occlusion. Comparing the T‐ to the Y‐ shape, there was no difference in the likelihood of successful reperfusion (1.09 [0.52–2.27], p=1.00) nor 90‐day favorable mRS (0‐2) score (RR: 0.68 [0.37–1.27]; p=0.18). Similarly, mortality at 30 and 90 days were not significantly affected by the type of bifurcation. Conclusion The configuration of the basilar artery does not significantly impact reperfusion success or stroke outcome.https://www.ahajournals.org/doi/10.1161/SVIN.03.suppl_2.068
spellingShingle Mohammad Hossein Abbasi
Ali Eltatawy
Steven R. Messé
Ashkan Mowla
Charles J. Prestigiacomo
Matthew S. Smith
Michela Rosso
Scott E. Kasner
Peyman Shirani
Abstract 068: Basilar artery bifurcation anatomy as a determinant of recanalization and stroke outcome
Stroke: Vascular and Interventional Neurology
title Abstract 068: Basilar artery bifurcation anatomy as a determinant of recanalization and stroke outcome
title_full Abstract 068: Basilar artery bifurcation anatomy as a determinant of recanalization and stroke outcome
title_fullStr Abstract 068: Basilar artery bifurcation anatomy as a determinant of recanalization and stroke outcome
title_full_unstemmed Abstract 068: Basilar artery bifurcation anatomy as a determinant of recanalization and stroke outcome
title_short Abstract 068: Basilar artery bifurcation anatomy as a determinant of recanalization and stroke outcome
title_sort abstract 068 basilar artery bifurcation anatomy as a determinant of recanalization and stroke outcome
url https://www.ahajournals.org/doi/10.1161/SVIN.03.suppl_2.068
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