• World Neurosurg · Aug 2017

    Review Meta Analysis

    Effect of baseline characteristics on the outcome of stent retriever based thrombectomy in acute basilar artery occlusions-a single center experience and pooled-data analysis.

    • Wan-Ling Wen, Zi-Fu Li, Yong-Wei Zhang, Peng-Fei Yang, Keith Simfukwe, Yi-Bin Fang, Tian-Yi Zhang, Ben-Qiang Deng, Bo Hong, Jian-Min Liu, and Qing-Hai Huang.
    • Department of Neurosurgery, Shanghai Changhai Hospital, Shanghai, China.
    • World Neurosurg. 2017 Aug 1; 104: 181-8.

    ObjectivesTo explore the association of baseline characteristics and the outcome of patients with acute basilar artery occlusion (BAO) after stent retriever-based thrombectomy (SRT).MethodsClinical and imaging information of consecutive SRT-treated patients with BAO from a comprehensive stroke center and up-to-date literature were reviewed respectively. The impact of baseline variables toward favorable outcome was evaluated using subgroup analysis and odds ratio (OR) extracted from published data together with single-center records using pooled analysis.ResultsNineteen cases from our center and 15 published studies involving 487 cases were included. Estimated pooled favorable outcome rate was 0.3746 (95% confidence interval [CI], 0.3165-0.4327), mortality was 0.2950 (95% CI, 0.2390-0.3510). Pooled estimates showed that successful reperfusion (modified thrombolysis in cerebral ischemia scale 2b or 3) gained by SRT alone was 0.7317 (95% CI, 0.6532-0.8102) and final successful reperfusion rate with or without additional reperfusion procedures was 0.8834 (95% CI, 0.8279-0.9390). Univariate analysis indicated that patients with successful reperfusion (OR, 2.05; P = 0.05), distal segment occlusion (OR, 2.03; P = 0.03), and cardioembolus origin (OR, 2.13; P = 0.01) were more likely to have favorable outcome (modified Rankin Scale score ≤2 at 3 months). Study series that applied intra-arterial thrombolysis, angioplasty, or stenting as rescuing therapy had higher successful reperfusion rate but they did not show a higher rate of favorable outcome.ConclusionsSRT with or without additional treatment appeared to be effective for the treatment of BAO. Successful reperfusion, distal segment occlusion, and cardiac embolism were associated with favorable outcome. The overall benefit of lesions requiring additional reperfusion therapy was unclear.Copyright © 2017 Elsevier Inc. All rights reserved.

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