Horizontal stent-assisted coil embolisation of wide-necked intracranial aneurysms with the Enterprise stent--a case series with early angiographic follow-up

Neuroradiology. 2009 Jun;51(6):411-8. doi: 10.1007/s00234-009-0517-8. Epub 2009 Mar 10.


Introduction: The purpose of the study is to describe our experience in eight cases of horizontal stenting across the circle of Willis in patients with terminal aneurysms.

Methods: Eight patients were treated with horizontal stent placement and aneurysm coiling. All aneurysms had highly unfavourable dome to neck ratios. All patients were followed up with digital subtraction angiography at 3-12 months following treatment.

Results: The Enterprise stent was successfully deployed horizontally in vessels of less than 2-mm diameter with no stent occlusion. Neurological complications occurred in one patient. Immediate and follow-up angiographic results were encouraging with six stable occlusions at 6 months. There was one asymptomatic case of in-stent stenosis and one case of late organised in-stent thrombus.

Conclusions: Horizontal deployment of the Enterprise stent to assist coil embolisation of wide-necked terminal aneurysms is feasible. This device can be navigated via relatively small communicating arteries, in cases with favourable anatomy. Early angiographic results were favourable; however, longer-term follow-up will be required.

Publication types

  • Clinical Trial

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Blood Vessel Prosthesis*
  • Cerebral Angiography*
  • Embolization, Therapeutic / instrumentation*
  • Equipment Failure Analysis
  • Female
  • Humans
  • Intracranial Aneurysm / diagnostic imaging*
  • Intracranial Aneurysm / surgery*
  • Longitudinal Studies
  • Male
  • Middle Aged
  • Prosthesis Design
  • Retrospective Studies
  • Stents*
  • Treatment Outcome