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Mechanical Thrombectomy in Ischemic Stroke Patients with Severe Pre-Stroke Disability
Sanjana Salwi1, Shawna Cutting2, Alan D Salgado3
1School of Medicine, Vanderbilt University, Nashville, TN, United States.
Summary
Mechanical thrombectomy (MT) outcomes for patients with severe pre-stroke disability are similar to those without disability. This case series analyzed 33 patients, finding comparable procedural success and complication rates, offering insights into this understudied group.
Area of Science:
- Neurology
- Interventional Neuroradiology
- Stroke Medicine
Background:
- Severe pre-stroke disability (modified Rankin Score 4-5) is a significant factor in acute ischemic stroke patient outcomes.
- The frequency and clinical outcomes of mechanical thrombectomy (MT) in this specific patient population remain largely uncharacterized.
- Understanding MT in patients with severe pre-stroke disability is crucial for treatment guidelines and patient selection.
Purpose of the Study:
- To describe the demographic characteristics and pre-stroke disability profiles of patients undergoing MT.
- To report the procedural and functional outcomes of MT in patients with severe pre-stroke disability.
- To compare outcomes in this cohort to those reported for patients without pre-existing severe disability.
Main Methods:
- Retrospective case series analysis of 33 patients with severe pre-stroke disability (mRS 4-5) treated with MT.
- Data collected from a prospectively-maintained database at two comprehensive stroke centers in the United States.
- Inclusion criteria: anterior circulation acute ischemic stroke, MT treatment, and severe pre-stroke disability.
Main Results:
- The study identified 33 patients with severe pre-stroke disability undergoing MT.
- Procedural success and complication rates were comparable to those reported in the general MT population.
- Functional outcomes, including return to baseline, showed similar trends to patients without pre-existing severe disability, despite limited sample size.
Conclusions:
- Mechanical thrombectomy appears to be a viable treatment option for carefully selected patients with severe pre-stroke disability.
- Outcomes in terms of procedural success and complications are not significantly different from patients without pre-existing disability.
- Further research with larger sample sizes is warranted to confirm these findings and refine treatment strategies for this population.
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