Stent fracture in revascularization for symptomatic ostial vertebral artery stenosis

Abstract

PTAS for symptomatic ostial VA stenosis is effective in preventing recurrent stroke. As the open-cell single-joint type of stent is associated with the risk of fracture, long-term follow-up examinations including simple radiography are needed.

Drug-eluting stent for the treatment of symptomatic vertebral origin stenosis: Long-term results

“…Some authors have also reported stent fracture as a complication of ostial VA stenosis, and stent fracture rates range from 5% to 50%. 13,20,21 Weber et al reported two fractures (5%) associated with restenosis. However, during a mean followup of 31.5 months, Tsutsumi et al reported three stent fractures (50%) detected in coronary stents deployed for symptomatic ostial VA stenosis.…”

Treatment of Stenoses of Vertebral Artery Origin Using Short Drug-Eluting Coronary Stents: Improved Follow-Up Results

“…3,4 Endovascular treatment with balloon angioplasty alone yields unsatisfactory results due to elastic recoil, vessel dissection, and high restenosis rates. 5,6 Studies on stent placement of ostial vertebral artery lesions by using bare metal stents have reported excellent immediate results and low rates of periprocedural complications; however, mid-and longterm results remained disappointing due to issues of stent fracture caused by mechanical strain [7][8][9] and high rates of instent restenosis as a result of neointimal hyperplasia. 7,10,11 The use of drug-eluting coronary stents (DES) for the prevention of in-stent restenosis in ostial vertebral artery stenotic lesions has been advocated recently.…”

Endovascular Angioplasty for Extracranial Vertebral Artery Occlusion Without Visualization of the Stump of the Artery Ostium

“…16,20) However, stent fracture was reported to be associated with stent type, not vessel diameter, with the open-cell type of coronary stent exhibiting a high risk of fracture. 17) We used the present stent due to its closed-cell design, and its conformability and flexibility for tortuous vessels such as the renal artery, which was originally approved for the angioplasty.…”