A Systematic Literature Review and Meta-Analysis of the Treatment of Ruptured Intracranial Aneurysms with Hydrophilic Polymer and Phosphorylcholine-Coated Flow Diverters Under Single Antiplatelet Therapy

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

Objective: Flow diverters coated with antithrombogenic substances were recently introduced and have shown encouraging results in the preclinical setting. Our aim was to analyze their clinical application in patients with ruptured intracranial aneurysms using single antiplatelet therapy (SAPT). Methods: We performed a PRISMA-compliant systematic review and meta-analysis covering 3 major data bases until March 2022.Two reviewers independently reviewed clinical studies for eligibility.Random-effects analysis of proportions was used to pool safety outcomes (hemorrhagic, thrombembolic, and overall complications). Studies were tested for publication bias and heterogeneity. Results: Five studies reporting 43 patients with 46 aneurysms were identified. More than 1 stent was implanted in 16%, and additional coil embolization was performed in 53.8% of patients. SAPT with one of various acetylsalicylic acid regimens was used in 86%, altogether antiplatelet protocols were variable. The pooled risks of thromboembolic (23.9%; 95% confidence interval [CI], 9.6–47.9), hemorrhagic (9.4%; 95% CI, 3.6–22.6), and overall complications (28.3%; 95% CI, 12.4–52.5) were calculated in the absence of publication bias with low to moderate study heterogeneity measures. All complications occurred in patients under acetylsalicylic acid SAPT. Adequate aneurysm occlusion was described in 65.5% of patients.few retrospective observational studies with moderate heterogeneity, encompassing a limited number of patients treated with variable SAPT regimens. Conclusions: Flow diversion for ruptured aneurysms under SAPT with coated stents is feasible. Although the risk of hemorrhagic complications was low, thromboembolic complications occurred in a significant number of patients, all under ASA SAPT.

Details

Original languageEnglish
Pages (from-to)e791-e800
JournalWorld neurosurgery
Volume170
Publication statusPublished - Feb 2023
Peer-reviewedYes

External IDs

PubMed 36462697
ORCID /0000-0001-5258-0025/work/146644928

Keywords

ASJC Scopus subject areas

Keywords

  • Brain aneurysm, Flow diversion, Single antiplatelet, Subarachnoid hemorrhage, Platelet Aggregation Inhibitors/therapeutic use, Humans, Aspirin/therapeutic use, Treatment Outcome, Intracranial Aneurysm/diagnostic imaging, Phosphorylcholine, Thromboembolism/etiology, Endovascular Procedures/methods, Stents/adverse effects, Retrospective Studies, Polymers, Aneurysm, Ruptured/diagnostic imaging, Embolization, Therapeutic/methods

Library keywords