J Cerebrovasc Endovasc Neurosurg.  2024 Dec;26(4):365-372. 10.7461/jcen.2024.E2024.04.002.

Feasibility of single antiplatelet therapy after stent assisted coiling for ruptured intracranial aneurysms

• Woo MS
• Kang DH
• Son W
• Kim M

• KMID: 2563085
• DOI: http://doi.org/10.7461/jcen.2024.E2024.04.002

Abstract

Object: We retrospectively analyzed clinical data to evaluate the safety and efficacy of single antiplatelet therapy (SAPT) after stent-assisted coil embolization (SAC) for ruptured cerebral aneurysms.
Methods
In total, 176 stent-assisted coil embolization procedures were investigated. Among them, 77 ruptured and 99 unruptured aneurysms were grouped and compared respectively. In the ruptured group, only SAPT (aspirin) was administered after the procedure. Meanwhile, in the unruptured group, dual antiplatelet therapy (DAPT) (aspirin and clopidogrel) was administered before and after the procedure following standard guidelines. We compared both groups in regards to thromboembolic complications by analyzing post procedural diffusion-weighted images (DWI), hyperacute thrombosis during the procedure, and post-procedural symptoms.
Results
The single antiplatelet therapy ruptured intracranial aneurysm (SAPT-RIA) group had 77 saccular aneurysms (62 ICA, 3 MCA, 4 ACA, 8 posterior circulation) with a mean diameter of 8.07 mm. The dual antiplatelet therapy unruptured intracranial aneurysm (DAPT-UIA) group had 99 aneurysms (81 ICA, 5 MCA, 3 ACA, 10 posterior circulation) with a mean diameter of 6.32 mm. DWI positivity rates were similar between groups, but hyperacute thrombosis was higher in the SAPT-RIA group (10.4%) compared to none in the DAPT-UIA group. Each group had one symptomatic complication.
Conclusions
SAPT could be a viable option for the peri-procedural management of SAC in acutely ruptured cases.

Keyword

Aspirin; Dual anti-platelet therapy; Intracranial aneurysm; Stents

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