How do you decide on long term immunosuppression therapy for Susac Syndrome?

Which is your next drug of choice for Susac Syndrome after initial treatment of high-dose corticosteroids?

• Mycophenolate Mofetil
• Cyclophosphamide
• Rituximab
• Azathioprine
• Methotrexate
• IV Immunoglobulin
• Plasma Exchange
• Other