Endovascular treatment of small-parent artery aneurysms: mid-term results of the silk vista baby flow diverter
摘要
We aim to retrospectively evaluate patients treated with SVB at our single center, assessing its efficacy, radiologic and clinical outcomes, and complication profile.
MethodThis retrospective, single-center study included patients with small parent artery aneurysms treated with SVB. Patients were monitored for procedural success, aneurysm occlusion, and complications, with radiologic and clinical follow-up conducted.
ResultsThe study included 64 patients with 66 small parent artery aneurysms treated using SVB FDs. Among these patients, 26 (40.6%) presented with subarachnoid hemorrhage (SAH). The mean index aneurysm size was 5.7 ± 5.25 mm. The cohort consisted of 15 males (23.4%) and 49 females (76.6%), with a mean age of 54.23 ± 14.95 years (range: 5–80 years). SVB was used as a standalone treatment in 42 patients (65.6%), while adjunctive materials were applied in 22 cases (34.4%)—coils in 16 (24.2%) and a regular stent in 6 (9.1%). A total of 71 SVB stents were deployed for 66 aneurysms, achieving a 100% technical success rate. In 30 patients with multiple aneurysms, additional aneurysms were addressed during the same session along with the index aneurysm. The mean duration of clinical and radiological follow-up was 10.5 ± 7.94 months. Among a total of 7 patients (10.9%) with ischemic complications, 3 (4.7%) were related to SVB implantation. Index aneurysm occlusion was accomplished in 93.3% of cases at the last follow-up. Favorable neurological outcomes (mRS 0–2) were recorded in 53 patients (82.8%). Subgroup analysis showed that 6 out of 7 total complications (85.7%) occurred in patients with multiple aneurysms.
ConclusionThe SVB FDs are a highly effective and safe treatment option for distal intracranial aneurysms, achieving high occlusion rates with a favorable safety profile.