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Takano Y, Koyanagi M, Takamatsu T, Tokuda M, Tomita H, Yoshimoto M, Sakisuka R, Kawade S, Naramoto Y, Nishii R, Yamamoto Y, Nakajima K, Teranishi K, Fukui N, Sunohara T, Fukumitsu R, Takeda J, Ohara N, Goto M, Imamura H, Sakai N, Ohta T. Clinical evaluation of mechanical thrombectomy for patients with posterior circulation occlusion: A retrospective study. Clin Neurol Neurosurg 2024; 237:108133. [PMID: 38340428 DOI: 10.1016/j.clineuro.2024.108133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/21/2024] [Accepted: 01/23/2024] [Indexed: 02/12/2024]
Abstract
OBJECTIVE Although consensus has been reached regarding the use of mechanical thrombectomy for acute large anterior circulation occlusion, its effectiveness in patients with posterior circulation occlusion remains unclear. This study aimed to establish the determining factors for good clinical outcomes of mechanical thrombectomy for posterior circulation occlusion. METHODS We extracted cases of acute large vessel occlusion (LVO) in the posterior circulation from a database comprising 536 patients who underwent mechanical thrombectomy at our hospital between April 2015 and March 2021. RESULTS Fifty-two patients who underwent mechanical thrombectomy for LVO in the posterior circulation were identified. Five patients with simultaneous occlusion of the anterior and posterior circulation were excluded; finally, 47 patients were included in this study. The median patient age was 78 years, and 36% of the patients were women. The median National Institutes of Health Stroke Scale (NIHSS) score on admission was 31, the median posterior circulation-Alberta Stroke Program Early Computed Tomography Score (pc-ASPECTS) was 8, and the median Basilar Artery on Computed Tomography Angiography (BATMAN) score was 6. The rate of good recanalization (Thrombolysis in Cerebral Infarction scale grades 2b and 3) was 96%, and a good prognosis (modified Rankin Scale score of 0-2 at 90 days) was achieved in 19 patients (40%). The median pc-ASPECTS was significantly higher in the good prognosis group than in the poor prognosis group (10 vs. 7; p = 0.007). The median NIHSS score at presentation was significantly lower in the good prognosis group than in the poor prognosis group (17 vs. 34; p = 0.02). The median BATMAN score was significantly higher in the good prognosis group than in the poor prognosis group (8 vs. 3.5; p = 0.0002). Multivariate analysis showed that an NIHSS score ≦ 20 at presentation was the only independent factor for good prognoses. CONCLUSION The prognosis of mechanical thrombectomy for posterior circulation LVO was better in patients with lower NIHSS scores at presentation.
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Affiliation(s)
- Yuki Takano
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Masaomi Koyanagi
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan.
| | - Takateru Takamatsu
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Masanori Tokuda
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Hikari Tomita
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Mai Yoshimoto
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Ryo Sakisuka
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Satohiro Kawade
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Yuji Naramoto
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Rikuo Nishii
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Yasuhiro Yamamoto
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Kota Nakajima
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Kunimasa Teranishi
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Nobuyuki Fukui
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Tadashi Sunohara
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Ryu Fukumitsu
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Junichi Takeda
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Nobuyuki Ohara
- Department of Neurology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Masanori Goto
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Hirotoshi Imamura
- Department of Neurosurgery, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Nobuyuki Sakai
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Tsuyoshi Ohta
- Department of Neurosurgery, Kobe City Medical Center General Hospital, Kobe, Japan
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