Exploring Seizure Risks in Cerebral Venous Sinus Thrombosis Based on Thrombosis Site

Area of Science:

• Neurology
• Radiology
• Internal Medicine

Background:

• Cerebral venous sinus thrombosis (CVST) is a serious condition often associated with seizures, which can complicate patient outcomes.
• Identifying specific risk factors for seizures in CVST patients is crucial for effective management and prognosis.

Purpose of the Study:

• To investigate the association between the anatomical site of cerebral venous sinus occlusion and the occurrence of seizures in patients with CVST.
• To identify independent predictors of seizures in a cohort of Iranian CVST patients.

Main Methods:

• A retrospective analysis of 154 CVST patients from three Tehran hospitals was conducted.
• Data on sinus involvement, seizure occurrence, and patient characteristics were reviewed.
• Statistical methods, including logistic regression and ROC curve analysis, were employed to determine predictors and model performance.

Main Results:

• Seizures occurred in 22.7% of patients, with generalized tonic-clonic seizures being most common.
• Thrombosis of the superior sagittal sinus (SSS) was a significant predictor of seizures (OR=3.056, P=0.006).
• Trolard vein thrombosis, though infrequent, was associated with a high seizure rate (75%).

Conclusions:

• Superior sagittal sinus (SSS) thrombosis is a significant independent predictor of seizures in Iranian patients with CVST.
• Thrombosis of the trolard vein, despite its rarity, warrants attention due to a high associated seizure risk.
• Findings emphasize the need for precise imaging and individualized treatment for high-risk CVST patients, suggesting prospective studies to refine clinical strategies.