Neuroradiology

, Volume 54, Issue 2, pp 147–154

Initial experience with a self-expanding retrievable stent for recanalization of large vessel occlusions in acute ischemic stroke

Authors

  • Bijoy K. Menon
    • Department of Clinical NeurosciencesUniversity of Calgary
  • Puneet Kochar
    • Department of RadiologyUniversity of Calgary
  • Andrew Ah-Seng
    • Department of RadiologyUniversity of Calgary
  • Mohammed A. Almekhlafi
    • Department of Clinical NeurosciencesUniversity of Calgary
    • Department of Internal MedicineKing Abdulaziz University
  • Jayesh Modi
    • Department of RadiologyUniversity of Calgary
  • John H. Wong
    • Department of RadiologyUniversity of Calgary
    • Department of NeurosurgeryUniversity of Calgary
  • Mark E. Hudon
    • Department of RadiologyUniversity of Calgary
  • Will Morrish
    • Department of RadiologyUniversity of Calgary
  • Andrew M. Demchuk
    • Department of Clinical NeurosciencesUniversity of Calgary
    • Department of RadiologyUniversity of Calgary
    • Department of RadiologyUniversity of Calgary
Interventional Neuroradiology

DOI: 10.1007/s00234-010-0835-x

Cite this article as:
Menon, B.K., Kochar, P., Ah-Seng, A. et al. Neuroradiology (2012) 54: 147. doi:10.1007/s00234-010-0835-x

Abstract

Introduction

Quicker recanalization results in better clinical outcomes in patients with acute ischemic strokes. We describe our experience with the use of a self-expanding, fully retrievable stent in acute intracranial occlusions.

Methods

Patients who underwent intra-arterial procedures with a self-expanding, fully retrievable stent for acute ischemic strokes at our center in 2009 were included in this study. The primary outcome was recanalization [Thrombolysis in Myocardial Infarction (TIMI) grade 2/3] at end of procedure. Secondary endpoints were procedural interval times, incidence of vasospasm, rupture of vessels, device-related complications, groin complications, postprocedural intracerebral hemorrhage (ICH) on noncontrast CT, and all-cause mortality.

Results

Fourteen patients (mean age 62.1 years, range 34–81 years; six males) were included in the study. Sites of occlusion are as follows: M1 middle cerebral artery (MCA, n = 8), M2 MCA (n = 1), proximal basilar artery (n = 1), and distal basilar artery (n = 4). An additional device or technique was used in 9 of 14 patients prior to the use of the retrievable stent. Twelve out of 14 (85.7%) achieved TIMI 2–3 recanalization with 4 of 14 (28.6%) achieving TIMI 3. Eight of 14 (57.1%) patients had modified Rankin Scale (0–2) at 3 months or discharge. ICH on follow-up CT was noted in 28.6% (4 of 14) of patients. All-cause mortality was 2 of 14 (14.3%).

Conclusion

Use of a novel self-expanding, fully retrievable stent resulted in fast and very high recanalization rates in acute ischemic strokes with intravascular occlusions.

Keywords

Retrievable stentEndovascular interventionAcute ischemic stroke

Copyright information

© Springer-Verlag 2011