Hydrogel coils versus bare platinum coils for the endovascular treatment of intracranial aneurysms: a meta-analysis of randomized controlled trials

Abstract Background Recent studies have shown conflicting results regarding the effect of hydrogel coils for treating intracranial aneurysm compared to bare platinum coils. We implemented a meta-analysis to assess the value of hydrogel coils in intracranial aneurysm treatment. Methods The MEDLINE, E...

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Main Authors: Tao Xue, Zhouqing Chen, Weiwei Lin, Jiayi Xu, Xuming Shen, Zhong Wang
Format: Article
Language:English
Published: BMC 2018-10-01
Series:BMC Neurology
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12883-018-1171-8
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author Tao Xue
Zhouqing Chen
Weiwei Lin
Jiayi Xu
Xuming Shen
Zhong Wang
author_facet Tao Xue
Zhouqing Chen
Weiwei Lin
Jiayi Xu
Xuming Shen
Zhong Wang
author_sort Tao Xue
collection DOAJ
description Abstract Background Recent studies have shown conflicting results regarding the effect of hydrogel coils for treating intracranial aneurysm compared to bare platinum coils. We implemented a meta-analysis to assess the value of hydrogel coils in intracranial aneurysm treatment. Methods The MEDLINE, EMBASE, and Cochrane Library databases were searched for randomized controlled trials (RCTs) which had evaluated hydrogel coils versus bare platinum coils for intracranial aneurysms. Results We pooled 1526 patients from 4 RCTs with the mean follow-up time of more than 16 months. Hydrogel coils had reductions on mid-term recurrence (RR 0.78, 95% CI 0.65 to 0.94, P = 0.008) and residual aneurysm (RR 0.71, 95% CI 0.57 to 0.88, P = 0.002), but didn’t show any significant differences in other favorable outcomes such as functional recovery, mortality and so on. In the subgroup analysis, we found that second-generation hydrogel coils might exhibit potential impacts on increasing mid-term complete occlusion (RR 1.26, 95% CI 1.07 to 1.48, P = 0.005) and decreasing residual aneurysm neck. (RR 0.54, 95% CI 0.34 to 0.86, P = 0.010). Conclusions Hydrogel coils showed no significant efficacy on functional recovery but exhibited a lower rate of recurrences and residual aneurysms in patients with intracranial aneurysms.
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spelling doaj.art-dab0b37b050c4464a0265e9f54a52d142022-12-22T03:48:06ZengBMCBMC Neurology1471-23772018-10-0118111110.1186/s12883-018-1171-8Hydrogel coils versus bare platinum coils for the endovascular treatment of intracranial aneurysms: a meta-analysis of randomized controlled trialsTao Xue0Zhouqing Chen1Weiwei Lin2Jiayi Xu3Xuming Shen4Zhong Wang5Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow UniversityDepartment of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow UniversityUniversity of Pittsburgh School of PharmacyDepartment of Ophthalmology, The First Affiliated Hospital of Soochow UniversityDepartment of Neurosurgery, Taicang Affiliated Hospital of Soochow UniversityDepartment of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow UniversityAbstract Background Recent studies have shown conflicting results regarding the effect of hydrogel coils for treating intracranial aneurysm compared to bare platinum coils. We implemented a meta-analysis to assess the value of hydrogel coils in intracranial aneurysm treatment. Methods The MEDLINE, EMBASE, and Cochrane Library databases were searched for randomized controlled trials (RCTs) which had evaluated hydrogel coils versus bare platinum coils for intracranial aneurysms. Results We pooled 1526 patients from 4 RCTs with the mean follow-up time of more than 16 months. Hydrogel coils had reductions on mid-term recurrence (RR 0.78, 95% CI 0.65 to 0.94, P = 0.008) and residual aneurysm (RR 0.71, 95% CI 0.57 to 0.88, P = 0.002), but didn’t show any significant differences in other favorable outcomes such as functional recovery, mortality and so on. In the subgroup analysis, we found that second-generation hydrogel coils might exhibit potential impacts on increasing mid-term complete occlusion (RR 1.26, 95% CI 1.07 to 1.48, P = 0.005) and decreasing residual aneurysm neck. (RR 0.54, 95% CI 0.34 to 0.86, P = 0.010). Conclusions Hydrogel coils showed no significant efficacy on functional recovery but exhibited a lower rate of recurrences and residual aneurysms in patients with intracranial aneurysms.http://link.springer.com/article/10.1186/s12883-018-1171-8Hydrogel coilsBare platinum coilsEndovascular treatmentIntracranial aneurysmsMeta-analysis
spellingShingle Tao Xue
Zhouqing Chen
Weiwei Lin
Jiayi Xu
Xuming Shen
Zhong Wang
Hydrogel coils versus bare platinum coils for the endovascular treatment of intracranial aneurysms: a meta-analysis of randomized controlled trials
BMC Neurology
Hydrogel coils
Bare platinum coils
Endovascular treatment
Intracranial aneurysms
Meta-analysis
title Hydrogel coils versus bare platinum coils for the endovascular treatment of intracranial aneurysms: a meta-analysis of randomized controlled trials
title_full Hydrogel coils versus bare platinum coils for the endovascular treatment of intracranial aneurysms: a meta-analysis of randomized controlled trials
title_fullStr Hydrogel coils versus bare platinum coils for the endovascular treatment of intracranial aneurysms: a meta-analysis of randomized controlled trials
title_full_unstemmed Hydrogel coils versus bare platinum coils for the endovascular treatment of intracranial aneurysms: a meta-analysis of randomized controlled trials
title_short Hydrogel coils versus bare platinum coils for the endovascular treatment of intracranial aneurysms: a meta-analysis of randomized controlled trials
title_sort hydrogel coils versus bare platinum coils for the endovascular treatment of intracranial aneurysms a meta analysis of randomized controlled trials
topic Hydrogel coils
Bare platinum coils
Endovascular treatment
Intracranial aneurysms
Meta-analysis
url http://link.springer.com/article/10.1186/s12883-018-1171-8
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AT zhouqingchen hydrogelcoilsversusbareplatinumcoilsfortheendovasculartreatmentofintracranialaneurysmsametaanalysisofrandomizedcontrolledtrials
AT weiweilin hydrogelcoilsversusbareplatinumcoilsfortheendovasculartreatmentofintracranialaneurysmsametaanalysisofrandomizedcontrolledtrials
AT jiayixu hydrogelcoilsversusbareplatinumcoilsfortheendovasculartreatmentofintracranialaneurysmsametaanalysisofrandomizedcontrolledtrials
AT xumingshen hydrogelcoilsversusbareplatinumcoilsfortheendovasculartreatmentofintracranialaneurysmsametaanalysisofrandomizedcontrolledtrials
AT zhongwang hydrogelcoilsversusbareplatinumcoilsfortheendovasculartreatmentofintracranialaneurysmsametaanalysisofrandomizedcontrolledtrials