Clinical Report: Enhanced prediction of stroke outcomes post-thrombectomy
Overview
This study evaluates the predictive capability of the modified Small Vessel Disease (mSVD) score in forecasting 90-day outcomes following mechanical thrombectomy (MT) for ischemic stroke due to large vessel occlusion. The findings indicate that mSVD is a significant independent predictor of unfavorable outcomes.
Background
Mechanical thrombectomy has been established as an effective treatment for acute ischemic stroke caused by large vessel occlusion. Despite its efficacy, approximately 50% of patients do not achieve favorable functional outcomes post-procedure. Understanding predictors of these outcomes is crucial for improving patient selection and treatment strategies.
Data Highlights
Variable
Outcome
mSVD Score = 3
Favorable outcome: 15.53%, Poor outcome: 84.47%
mSVD Score = 0
Favorable outcome: 89.23%, Poor outcome: 10.77%
AUC for mSVD
0.904
AUC for BFS
0.889
AUC for individual CT indicators
0.898
Supplementary model AUC
0.954
Key Findings
Severe mSVD (score = 3) is an independent predictor of unfavorable outcomes (OR = 3.267; CI: 1.731–6.168; p = 0.009).
mSVD outperformed BFS and individual CT indicators in predicting outcomes (AUC = 0.904 vs. 0.889/0.898).
Adverse outcomes were associated with advanced age, elevated NIHSS, systolic blood pressure, glycemia, and increased severity of leukoaraiosis and atrophy.
The likelihood of a favorable outcome significantly decreased with higher mSVD scores.
Incorporating mSVD into initial CT assessments may enhance risk stratification.
Clinical Implications
The mSVD score provides prognostic information in the assessment of patients undergoing mechanical thrombectomy for ischemic stroke.
Conclusion
The modified Small Vessel Disease score is a predictor of post-thrombectomy outcomes.
