Safety and Efficacy of Endovascular Treatment of Previously Clipped Aneurysms: A Systematic Review and Meta-Analysis.

Abstract:

BACKGROUND/OBJECTIVE:The safety and efficacy of endovascular treatment of previously clipped aneurysms have not been well-established. We conducted a systematic review of the literature to evaluate the outcomes of endovascular treatment of previously clipped aneurysms. METHODS:A systematic search of MEDLINE, Embase, Scopus, and the Web of Science was performed for studies published until October 2017. We included studies with ≥2 patients that described endovascular treatment of previously clipped aneurysms. A random-effects meta-analysis was used to pool the following outcomes: technical success, aneurysm occlusion/recurrence/rebleed, ischemic/thrombotic/thromboembolic events, neurologic/procedure-related morbidity/mortality, and favorable neurologic outcomes. We performed subgroup analyses by aneurysm rupture status on presentation to the endovascular procedure, treatment timing, and by aneurysm location (anterior vs. posterior circulation). RESULTS:In total, 27 studies with 271 patients were included. Overall complete occlusion was 76.1% (95% confidence interval [CI] 0.676-0.836) and technical success was 97.9% (95% CI 0.958-0.993). Combined procedure-related morbidity/mortality was 4.5% (95% CI 0.024-0.073). There were no statistically significant differences in any of the safety and efficacy outcomes by aneurysm location. Overall long-term favorable neurologic outcome was 78.5% (95% CI 0.732-0.834). All included studies are retrospective. CONCLUSIONS:Our meta-analysis demonstrated that endovascular treatment is acceptably safe and effective. It is important to point out that the complication rate of treatment of these aneurysms is not negligible. These findings should be considered when deciding the best therapeutic strategy. Our findings may suggest that endovascular treatment of previously clipped aneurysms should only be considered in circumstances in which conservative management seems to be unsafe.

journal_name

World Neurosurg

journal_title

World neurosurgery

authors

Petr O,Petrová L,Bradáč O,Glodny B,Edlinger M,Thomé C

doi

10.1016/j.wneu.2018.02.103

subject

Has Abstract

pub_date

2018-06-01 00:00:00

pages

e137-e150

eissn

1878-8750

issn

1878-8769

pii

S1878-8750(18)30376-0

journal_volume

114

pub_type

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