Tikun Shan1, Tiejun Zhang1, Weiqiang Qian1, Lu Ma1, Hao Li1, Chao You2, Xiaoqi Xie3. 1. Department of Neurosurgery, West China Hospital, Sichuan University and West China Brain Research Centre, No. 37 Guo Xue Xiang, Chengdu, Sichuan, China. 2. Department of Neurosurgery, West China Hospital, Sichuan University and West China Brain Research Centre, No. 37 Guo Xue Xiang, Chengdu, Sichuan, China. chaoyou0118@126.com. 3. Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China. xiaoqixie_nicu@163.com.
Abstract
BACKGROUND: Delayed cerebral ischemia seriously affects the prognosis of patients surviving the initial aneurysmal subarachnoid hemorrhage. Application of cilostazol was reported to ameliorate vasospasm and improve outcomes in series and clinical trials. But the effectiveness and feasibility of cilostazol on aneurysmal subarachnoid hemorrhage remained controversial. We performed a systematic review to clarify this issue. METHODS: PubMed, Ovid and Cochrane library database were systematically searched up to May 2018 for eligible publications in English. Quality assessment was conducted for included studies. Meta-analysis was conducted to evaluate the overall effect on events of interest. Subgroup analyses and sensitivity analyses were used to check whether the results were robust. Publication bias was evaluated with the funnel plot. RESULTS: Pooled analyses found cilostazol significantly reduced incidences of severe angiographic vasospasm (p = 0.0001), symptomatic vasospasm (p < 0.00001), new cerebral infarction (p < 0.00001) and the poor outcome (p < 0.0001). Subgroup and sensitivity analyses achieved consistent results. There was no statistical difference between cilostazol and the control group in reducing mortality (p = 0.07). But sensitivity analysis changed the result after excluding one study. Under the prescribed dosage, complication was few and non-lethal. CONCLUSIONS: Cilostazol was effective and safe to reduce incidences of severe angiographic vasospasm, symptomatic vasospasm, new cerebral infarction and poor outcome in patients after aneurysmal subarachnoid hemorrhage. However, its effect on mortality and the interactive effect with nimodipine warranted further research.
BACKGROUND: Delayed cerebral ischemia seriously affects the prognosis of patients surviving the initial aneurysmal subarachnoid hemorrhage. Application of cilostazol was reported to ameliorate vasospasm and improve outcomes in series and clinical trials. But the effectiveness and feasibility of cilostazol on aneurysmal subarachnoid hemorrhage remained controversial. We performed a systematic review to clarify this issue. METHODS: PubMed, Ovid and Cochrane library database were systematically searched up to May 2018 for eligible publications in English. Quality assessment was conducted for included studies. Meta-analysis was conducted to evaluate the overall effect on events of interest. Subgroup analyses and sensitivity analyses were used to check whether the results were robust. Publication bias was evaluated with the funnel plot. RESULTS: Pooled analyses found cilostazol significantly reduced incidences of severe angiographic vasospasm (p = 0.0001), symptomatic vasospasm (p < 0.00001), new cerebral infarction (p < 0.00001) and the poor outcome (p < 0.0001). Subgroup and sensitivity analyses achieved consistent results. There was no statistical difference between cilostazol and the control group in reducing mortality (p = 0.07). But sensitivity analysis changed the result after excluding one study. Under the prescribed dosage, complication was few and non-lethal. CONCLUSIONS:Cilostazol was effective and safe to reduce incidences of severe angiographic vasospasm, symptomatic vasospasm, new cerebral infarction and poor outcome in patients after aneurysmal subarachnoid hemorrhage. However, its effect on mortality and the interactive effect with nimodipine warranted further research.
Authors: Troy Dawley; Chad F Claus; Doris Tong; Sina Rajamand; Diana Sigler; Matthew Bahoura; Lucas Garmo; Teck M Soo; Prashant Kelkar; Boyd Richards Journal: BMJ Open Date: 2020-10-05 Impact factor: 2.692