Steroids for Facial Nerve Function Protection in Post-surgical Vestibular Schwannoma Patients

Methylprednisolone sodium succinate 80 mg powder dissolved in 100 mL of sodium chloride solution (intravenous infusion, once daily) from the day of surgery to day 3, followed by 20 mg of prednisone acetate (oral intake, once daily) from day 4 to day 10.

Methylprednisolone sodium succinate placebo powder dissolved in 100 mL of sodium chloride solution (intravenous infusion, once daily) from the day of surgery to day 3, followed by prednisone acetate placebo (oral intake, once daily) from day 4 to day 10.