• Jie Shen, Kaiyuan Huang, Jian Shen, Yu Zhu, Hao Jiang, Jianwei Pan, and Renya Zhan.
• Department of Neurosurgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.
• World Neurosurg. 2019 Jul 1; 127: e321-e329.

BackgroundThe treatment for patients with poor-grade aneurysms defined as World Federation of Neurosurgical Societies (WFNS) grade IV-V is still unclear and controversial. In this research, we compared the clinical efficacy and safety between clipping and coiling in the treatment of ruptured poor-grade anterior circulation aneurysms.MethodsWe conducted a retrospective analysis of a hospital database. From January 2013 to May 2018, 94 patients who presented with poor-grade anterior circulation aneurysms were included. Preoperative baseline, postprocedure complications, and outcome (3-month and 6-month modified Rankin Scale scores) were analyzed. Multivariate logistic regression analysis was conducted to identify risk factors of short-term (in-hospital, 30-day) mortality.ResultsA total of 21 (22%) patients died during short-term follow-up; there was a greater short-term mortality in coiling group (38% vs. 15%, P = 0.015). The incidence of delayed cerebral ischemia and intracranial infection in the clipping group was significantly greater than the coiling group: (33% vs. 14%, P = 0.045) and (68% vs. 41%, P = 0.016). However, coiling group had a greater rate of shunt-dependent hydrocephalus (21% vs. 6%, P = 0.035). Multivariate logistic regression analysis revealed cerebral vasospasm (odds ratio [OR], 9.22; P < 0.01), admission WFNS grade V (OR, 15.43; P < 0.01), coiling (OR, 5.92; P = 0.013), and postoperative aneurysm rebleeding (OR, 40.04; P = 0.01) would influence the mortality.ConclusionsPatients with ruptured poor-grade anterior circulation aneurysms who undergo microsurgical clipping seem to have a lower short-term mortality. Cerebral vasospasm, WFNS grade V, and postoperative aneurysm rebleeding are associated with short-term mortality.Copyright © 2019 Elsevier Inc. All rights reserved.

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