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  • Title: Cerebral Venous Sinus Thrombosis Score and its Correlation with Clinical and MRI Findings.
    Author: Kalita J, Singh VK, Jain N, Misra UK, Kumar S.
    Journal: J Stroke Cerebrovasc Dis; 2019 Nov; 28(11):104324. PubMed ID: 31422004.
    Abstract:
    BACKGROUND: It is plausible that extent of cerebral venous sinus thrombosis (CVST) may determine clinical severity, magnetic resonance imaging (MRI) lesion, and outcome, therefore this study was undertaken. METHODS: A total of 160 CVST patients were included and their clinical details, risk factors, Glasgow Coma Scale score, and parenchymal lesion on MRI were noted. The extent of venous sinus thrombosis on magnetic resonance venography was assessed by using CVST score which was computed giving 1 point for each thrombosed sinus and 3 points to superior sagittal sinus (SSS). Death and outcome at 6 months were assessed using modified Rankin Scale (mRS) as good (≤2) and poor (mRS 3-5). RESULTS: Their median age was 29.5 years, and 76 (47%) were females. The median CVST score was 3 (range 1-9). CVST score did not correlate with clinical severity and risk factors. Insignificantly higher proportion of patients had parenchymal lesion with a CVST score of more than 2 (76.5% versus 64.2%). Superficial venous system thrombosis, however, correlated with seizure, papilloedema, and frontal lobe lesion. Frontal, temporal lesion correlated with SSS thrombosis, frontal and temporal with transverse sinus, temporal and cerebellar involvement in sigmoid, and basal ganglia and thalamus in straight sinus thrombosis. Seventeen patients (11%) died, and at 6 months, 132 (82%) had good and 11 (7%) poor recovery. Death and 6 months outcomes were not related to CVST score. CONCLUSIONS: Extent of CVST does not determine clinical severity, MRI lesion, and outcome. The location of parenchymal lesion however is related to thrombosis of draining sinus.
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