CardioVascular and Interventional Radiology

, Volume 35, Issue 6, pp 1332–1339 | Cite as

Procedural Predictors of Outcome in Patients Undergoing Endovascular Therapy for Acute Ischemic Stroke

  • Ansaar T. Rai
  • Yahodeep Jhadhav
  • Jennifer Domico
  • Gerald R. Hobbs
Clinical Investigation

Abstract

Purpose

To identify factors impacting outcome in patients undergoing interventions for acute ischemic stroke (AIS).

Materials and Methods

This was a retrospective analysis of patients undergoing endovascular therapy for AIS secondary during a 30 month period. Outcome was based on modified Rankin score at 3- to 6-month follow-up. Recanalization was defined as Thrombolysis in myocardial infarction score 2 to 3. Collaterals were graded based on pial circulation from the anterior cerebral artery either from an ipsilateral injection in cases of middle cerebral artery (MCA) occlusion or contralateral injection for internal carotid artery terminus (ICA) occlusion as follows: no collaterals (grade 0), some collaterals with retrograde opacification of the distal MCA territory (grade 1), and good collaterals with filling of the proximal MCA (M2) branches or retrograde opacification up to the occlusion site (grade 2). Occlusion site was divided into group 1 (ICA), group 2 (MCA with or without contiguous M2 involvement), and group 3 (isolated M2 or M3 branch occlusion).

Results

A total of 89 patients were studied. Median age and National Institutes of health stroke scale (NIHSS) score was 71 and 15 years, respectively. Favorable outcome was seen in 49.4% of patients and mortality in 25.8% of patients. Younger age (P = 0.006), lower baseline NIHSS score (P = 0.001), successful recanalization (P < 0.0001), collateral support (P = 0.0008), distal occlusion (P = 0.001), and shorter procedure duration (P = 0.01) were associated with a favorable outcome. Factors affecting successful recanalization included younger age (P = 0.01), lower baseline NIHSS score (P = 0.05), collateral support (P = 0.01), and shorter procedure duration (P = 0.03). An ICA terminus occlusion (P < 0.0001), lack of collaterals (P = 0.0003), and unsuccessful recanalization (P = 0.005) were significantly associated with mortality.

Conclusion

Angiographic findings and preprocedure variables can help prognosticate procedure outcomes in patients undergoing endovascular therapy for AIS.

Keywords

Neurointerventions Endovascular treatment Stroke therapy Stroke 

Notes

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Science+Business Media, LLC and the Cardiovascular and Interventional Radiological Society of Europe (CIRSE) 2011

Authors and Affiliations

  • Ansaar T. Rai
    • 1
  • Yahodeep Jhadhav
    • 1
  • Jennifer Domico
    • 1
  • Gerald R. Hobbs
    • 2
  1. 1.Interventional NeuroradiologyWest Virginia University Health Sciences CenterMorgantownUSA
  2. 2.Department of Community MedicineWest Virginia University Health Sciences CenterMorgantownUSA

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