What type of study is this?

December 6, 2025Stroke Vascular and Interventional Neurology0 citationsOpen Access

Abstract 142: Stent Angioplasty in Patients with Vertebral Artery Ostial Stenosis: Clinical and Angiographic Outcomes in 525 Patients

Key Points

Stenting was safely accomplished in 100% of cases, leading to a low in-hospital stroke rate of 0.6%.
Digital subtraction angiography was employed for follow-up evaluation of patients over a median of 56 months.
In-stent restenosis over 50% was noted in 15.8% of implants, primarily appearing within the first year.
Findings highlight the effectiveness of endovascular treatment in managing vertebral artery ostial stenosis, necessitating further studies.

Abstract

Background The optimal treatment approach for patients with severe atherosclerotic vertebral artery ostial stenosis (VAOS) is not yet supported by evidence from large‐scale studies. Even with optimal medical treatment and effective risk factor management, substantial numbers of patients experience symptoms or recurrent strokes. Endovascular treatment is a potential solution, particularly when medicinal therapy alone is insufficient for symptom and stroke risk reduction. This study was aimed at assessing the safety and effectiveness of stent angioplasty in patients with VAOS. Methods This single‐center retrospective analysis included 564 procedures in 525 patients (symptomatic n = 265, without recent symptoms n = 260; 72.2% male; median age: 70 years; stenosis >75% n = 371) who underwent stenting for atherosclerotic VAOS between 2008 and 2022. Vertebrobasilar tandem lesions and dissections were excluded. Digital subtraction angiography (DSA) was performed in all patients during the follow‐up. Patients’ characteristics, peri‐ and postprocedural neurological events, and follow‐up data were evaluated. Results Stenting was successfully performed in all cases. The in‐hospital stroke rate was 0.6% (disabling n =2; non‐disabling n =1). No ipsilateral stroke or treatment‐associated deaths occurred during a mean follow‐up period of 56 months (min.‐max., 9‐183 months). In‐stent restenosis >50% was found in 89 (15.8%) implanted stents, with the majority (70 out of 89) diagnosed within the first year, at a median time of 7 months. Conclusion Stent angioplasty was demonstrated to be a safe and feasible option for patients with VAOS, with a low risk of periprocedural stroke and symptom recurrence, and favorable stent patency rates at mid‐ and long‐term follow‐up. image image

Ask AI

Helpful

Bookmark

View Full Paper