Solitaire AB stent-assisted coiling of wide-necked intracranial aneurysms: short-term results from a prospective, consecutive, European multicentric study

Neuroradiology. 2013 Nov;55(11):1373-8. doi: 10.1007/s00234-013-1277-z. Epub 2013 Sep 22.


Introduction: Solitaire AB stent-assisted coiling facilitates the endovascular treatment of wide-necked intracranial aneurysms. Solitaire Aneurysm Remodeling is the first prospective, consecutive, European multicentric study whose main objective was to evaluate the safety, short-, and long-term efficacy of the Solitaire AB stent. This first analysis is focused on the short-term results.

Methods: After exclusion of one patient, 66 Solitaire AB stents were used to treat via endovascular approach 64 aneurysms (63 patients) in seven European centers. Technical and clinical complications were recorded. A core laboratory evaluated the angiographic efficacy by using the Raymond classification scale.

Results: The mean width of aneurysm sac was 7.5 mm, and the mean diameter of aneurysm neck was 4.7 mm. Complete occlusion was achieved in 27 aneurysms (42.2 %); neck remnant was seen in 25 aneurysms (39.1 %) and aneurysm remnant in 12 aneurysms (18.7 %). Technical and clinical complications related to the procedure were encountered in eight patients (12.7 %). Postprocedural modification of the clinical status was observed in one patient (1.6 %). No patients died (0 %); one had a permanent deficit (1.6 %), and one had a transient deficit (1.6 %). Treatment-related mortality was 0 %, and permanent morbidity was 1.6 %.

Conclusion: The Solitaire AB stent has an excellent rate of technical success navigation with the absence of dislodgement. The safety and short-term efficacy are comparable to those previously reported with coiling alone. Mid- and long-term follow-up will be required to elucidate the impact of the Solitaire AB stent on recanalization rate.

Publication types

  • Clinical Trial
  • Multicenter Study

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Blood Vessel Prosthesis / statistics & numerical data*
  • Equipment Failure Analysis
  • Europe / epidemiology
  • Female
  • Humans
  • Intracranial Aneurysm / diagnostic imaging
  • Intracranial Aneurysm / mortality*
  • Intracranial Aneurysm / surgery*
  • Male
  • Middle Aged
  • Prevalence
  • Prospective Studies
  • Prosthesis Design
  • Radiography
  • Risk Factors
  • Stents / statistics & numerical data*
  • Survival Rate
  • Treatment Outcome