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Mechanical thrombectomy with snare in patients with acute ischemic stroke

  • Interventional Neuroradiology
  • Published:
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Abstract

Introduction

We evaluated the efficacy and safety of thrombus extraction using a microsnare in patients with acute ischemic stroke (AIS).

Methods

This was a prospective, observational, cohort study in which consecutive patients with AIS (<6 hours of ischemia for anterior circulation and <24 hours for posterior circulation) who had been previously excluded from intravenous tissue plasminogen activator (tPA) thrombolysis were included and followed-up for 3 months. Mechanical embolectomy with a microsnare of 2–4 mm was undertaken as the first treatment. Low-dose intraarterial thrombolysis or angioplasty was used if needed. TIMI grade and modified Rankin stroke scale (mRSS) score were used to evaluate vessel recanalization and clinical efficacy, respectively.

Results

Nine patients (mean age 55 years, range 17–69 years) were included. Their basal mean NIHSS score was 16 (range 12–24). In seven out of the nine patients (77.8%) the clot was removed, giving a TIMI grade of 3 in four patients and TIMI grade 2 in three patients. Occlusion sites were: middle cerebral artery (four), basilar artery (two) and anterior cerebral artery plus middle cerebral artery (one). The mean time for recanalization from the start of the procedure was 50 min (range 50–75 min). At 3 months, the mRSS score was 0 in two patients and 3–4 in three patients (two patients died).

Conclusion

According to our results, the microsnare is a safe procedure for mechanical thrombectomy with a good recanalization rate. Further studies are required to determine the role of the microsnare in the treatment of AIS.

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Conflict of interest statement

We declare that we have no conflict of interest.

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Authors and Affiliations

  1. Interventional Neuroradiology, Department of Radiology, Hospital Universitario Virgen del Rocío, C/ Pastor y Landero, 41, 41001, Seville, Spain

    Alejandro González & Antonio Mayol

  2. Department of Neurology, Hospital Universitario Virgen del Rocío, Seville, Spain

    Eva Martínez, Jose Ramón González-Marcos & Alberto Gil-Peralta

Authors
  1. Alejandro González
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  2. Antonio Mayol
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  3. Eva Martínez
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  4. Jose Ramón González-Marcos
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  5. Alberto Gil-Peralta
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Corresponding author

Correspondence to Alejandro González.

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González, A., Mayol, A., Martínez, E. et al. Mechanical thrombectomy with snare in patients with acute ischemic stroke. Neuroradiology 49, 365–372 (2007). https://doi.org/10.1007/s00234-006-0207-8

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  • DOI: https://doi.org/10.1007/s00234-006-0207-8

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