Relationship of white matter lesions to delayed perihematomal edema expansion and functional outcome in intra-cerebral hemorrhage
Objective To explore the relationship of white matter lesions to delayed perihematomal edema expan-sion and functional outcome in intracerebral hemorrhage.Methods The clinical and imaging data of 209 patients with su-pratentorial intracerebral hemorrhage in the First Affiliated Hospital of Zhengzhou University,from September 2021 to January 2023 were retrospectively analyzed.White matter lesions were graded using the van Swieten Scale(vSS)score.Delayed perihematomal edema expansion was defined as absolute volume growth of perihematomal edema(ΔPHE)≥7.5 ml from 4-7 days to 8-14 days.Logistic regression analysis was performed to identify risk factors for delayed perihematomal edema expansion and 90-day poor outcomes.Multiple linear regression analysis was utilized to identify risk factors for ΔPHE.Results Of 209 patients,93 patients had white matter lesions,91 patients had delayed perihematomal edema ex-pansion,and 104 patients had 90-day poor outcomes.Regression analyses showed that vSS score,the National Institutes of Health Stroke Scale(NIHSS)score at admission,and initial hematoma volume were independent risk factors for de-layed perihematomal edema expansion after intracerebral hemorrhage and for ΔPHE vSS score,NIHSS score at admission,initial hematoma volume,and age were significant factors affecting the 90-day poor outcome after intracerebral hemor-rhage.Compared with non/mild white matter lesions,moderate/severe white matter lesions were more likely to have poorer functional outcomes.Conclusion Severity of white matter lesions,NIHSS score at admission,and initial hematoma vol-ume were independent risk factors for delayed perihematomal edema expansion after intracerebral hemorrhage,and were correlated with 90-day poor outcomes.Delayed perihematomal edema expansion may be a potential mechanism of white matter lesions affecting the prognosis of intracerebral hemorrhage,which needs to be confirmed by further prospective studies.
White matter lesionDelayed perihematomal edema expansionIntracerebral hem-orrhagePrognosis
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