E-046 Migration of enterprise self-expanding intracranial stent after successful deployment. (4th July 2012)

• Record Type: Journal Article
• Authors: Swarnkar, A; Ezhapilli, S; Lodi, Y; Deshaies, E
• Is Part Of: Journal of neurointerventional surgery. Volume 4(2012)Supplement 1
• Page Start: A66
• Page End: A66
• Publication Date: 2012-07-04
• Subjects: Nervous system -- Surgery -- Periodicals; Cerebrovascular disease -- Surgery -- Periodicals; 617.48
• DOI: 10.1136/neurintsurg-2012-010455c.46
• Languages: English
• ISSNs: 1759-8478

Abstract

Abstract : Introduction: Enterprise stent is used for stent-assisted coiling of wide-neck intracranial aneurysms. It is a self-expanding flexible stent and has a close cell design. There are reports of migration of the stent after initial successful deployment. 1 The purpose of this study is to describe the incidence and extent of migration of the Enterprise stent and its influence on coiling. Materials and Methods: This retrospective study included 73 patients, (17 male and 56 females), with wide-necked intracranial aneurysms, who underwent stent assisted coiling using Enterprise stent over a period of 4 years. The results of the initial and follow-up cerebral angiograms were evaluated. Results: Thirty four patients (47%) had no displacement of the stent. Thirty five patients (48%) had <1.5 mm displacement of the stent, which was considered not significant. Only four patients (5%) had more than 2 mm migration of the stent after deployment. One of these patients in whom the stent was deployed across a basilar apex aneurysm, had a proximal displacement of the stent of 8.4 mm, with the distal end projecting into the base of the aneurysm. Successful coiling was achieved using waffle-cone technique in this patient. Two patients needed a second stent to allow adequate coverage of the neck of the aneurysm. There were no clinical complications. Conclusion: A majority of patients with wide-neck intracranial aneurysms treated with Enterprise self-expanding intracranial stent have no significant migration. A minority of patients develop migration requiring additional stents or modification in technique for coiling. Competing interests: None. Reference: 1. Kelly ME, Turner RD, Moskowitz SI, et al. Delayed migration of a self-expanding intracranial microstent. AJNR Am J Neuroradiol 2008;29 :1959–60.