TY - JOUR
T1 - Antiplatelet therapy for prevention of thromboembolic complications in coiling-only procedures for unruptured brain aneurysms
AU - Almekhlafi, Mohammed A.
AU - Al Sultan, Abdulaziz S.
AU - Kuczynski, Andrea M.
AU - Brinjikji, Waleed
AU - Menon, Bijoy K.
AU - Hill, Michael D.
AU - Goyal, Mayank
N1 - Publisher Copyright:
© Author(s) (or their employer(s)) 2020. No commercial re-use. See rights and permissions. Published by BMJ.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/3/1
Y1 - 2020/3/1
N2 - Background and purpose Thromboembolic events are recognized complications of aneurysm coiling. Objective To identify any protective effects of antiplatelet therapy use before coiling of unruptured aneurysms. Methods We conducted a meta-analysis of clinical studies published up to February 2019. We included studies reporting symptomatic thromboembolic events (defined as clinical stroke or transient ischemic attacks) in patients who received antiplatelet therapy before coiling of unruptured aneurysms using unassisted coiling, balloon assistance, or multiple microcatheters. We excluded ruptured aneurysms and those treated with stent coiling or flow diverters. Results We identified 14 studies (2486 patients). All were single-center studies and four were prospective. In three studies with a control (no treatment) arm, the pooled risk ratio for symptomatic thromboembolic events with versus without antiplatelet therapy was 0.33 (95% CI 0.17 to 0.92, p= 0.035). The cumulative risk of symptomatic thromboembolic events with single antiplatelet agents was 5.0% '56/1122' (95% CI 1.6% to 8.4%, I 2 83.63%), and with dual or multiple agents 2.7% '33/1237' (95% CI 1.0% to 3.0%, I 2 39.9%). The incidence of diffusion lesions was reported in seven studies. It was 50.5% '96/190' (95% CI 7.3% to 93.9%, I 2 94.4%) with single agents compared with 43.9% '196/446' (95% CI 25.9% to 61.9%, I 2 73.4%) with dual or multiple agents. Conclusion Periprocedural antiplatelet therapy was associated with a low symptomatic thromboembolic event after coiling-only for unruptured aneurysms. However, available evidence is of limited quality with significant heterogeneity, requiring evidence from randomized controlled trials.
AB - Background and purpose Thromboembolic events are recognized complications of aneurysm coiling. Objective To identify any protective effects of antiplatelet therapy use before coiling of unruptured aneurysms. Methods We conducted a meta-analysis of clinical studies published up to February 2019. We included studies reporting symptomatic thromboembolic events (defined as clinical stroke or transient ischemic attacks) in patients who received antiplatelet therapy before coiling of unruptured aneurysms using unassisted coiling, balloon assistance, or multiple microcatheters. We excluded ruptured aneurysms and those treated with stent coiling or flow diverters. Results We identified 14 studies (2486 patients). All were single-center studies and four were prospective. In three studies with a control (no treatment) arm, the pooled risk ratio for symptomatic thromboembolic events with versus without antiplatelet therapy was 0.33 (95% CI 0.17 to 0.92, p= 0.035). The cumulative risk of symptomatic thromboembolic events with single antiplatelet agents was 5.0% '56/1122' (95% CI 1.6% to 8.4%, I 2 83.63%), and with dual or multiple agents 2.7% '33/1237' (95% CI 1.0% to 3.0%, I 2 39.9%). The incidence of diffusion lesions was reported in seven studies. It was 50.5% '96/190' (95% CI 7.3% to 93.9%, I 2 94.4%) with single agents compared with 43.9% '196/446' (95% CI 25.9% to 61.9%, I 2 73.4%) with dual or multiple agents. Conclusion Periprocedural antiplatelet therapy was associated with a low symptomatic thromboembolic event after coiling-only for unruptured aneurysms. However, available evidence is of limited quality with significant heterogeneity, requiring evidence from randomized controlled trials.
KW - aneurysm
KW - coil
KW - embolic
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U2 - 10.1136/neurintsurg-2019-015173
DO - 10.1136/neurintsurg-2019-015173
M3 - Article
C2 - 31540948
AN - SCOPUS:85079202805
VL - 12
SP - 298
EP - 302
JO - Journal of NeuroInterventional Surgery
JF - Journal of NeuroInterventional Surgery
SN - 1759-8478
IS - 3
ER -