Steroid for Treatment of Acute/Subacute Severe Cerebral Venous Thrombosis.

In the steroid therapy group, patients received standard treatment plus steroid therapy. Steroid therapy protocol is as follows: 500 mg methylprednisolone once a day, intravenous drip for 3 days, then reduced to 80 mg once a day, intravenous drip for 5 days, and changed to oral methylprednisolone/prednisone 1 mg per kilogram body weight, gradually tapered off by a dose of 10 mg per week.