Objective: To evaluate the efficacy and safety of endovascular treatment using simple

coiling and balloon-assisted coiling for ruptured intracranial aneurysms at Thai Nguyen

Central Hospital.

Methods: This descriptive study combined retrospective and prospective data from 54

patients treated between January 2023 and June 2025 at Thai Nguyen Central Hospital.

Thirty-eight patients underwent simple coiling and sixteen underwent balloon-assisted

coiling. Primary outcomes included immediate angiographic occlusion according to the

Raymond-Roy classification, procedure-related complications, and functional outcome at

discharge assessed by the modified Rankin Scale (mRS).

Results: Mean age was 55.6 ± 12.4 years and women accounted for 61.1% of the cohort.

The anterior communicating artery was the most common aneurysm site (37.0%). Overall

complete occlusion (Raymond I) was achieved in 83.3% of cases. Balloon-assisted coiling

yielded a higher complete occlusion rate than simple coiling (93.8% vs. 78.9%; p = 0.041).

Favorable clinical outcome (mRS 0-2) was observed in 81.3% of the balloon-assisted

group and 71.1% of the simple coiling group; the difference was not statistically

significant (p = 0.312). Overall complications occurred in 9.3% of patients, with no procedure-related mortality.

Conclusion: Endovascular coiling was effective and reasonably safe for ruptured

intracranial aneurysms in this series. Balloon assistance improved immediate aneurysm

occlusion, especially in wide-necked or morphologically unfavorable aneurysms.