Treatment of stiff‐man syndrome with intravenous immune globulin

Abstract
Objective. To evaluate the efficacy of intravenous immune globulin (IVIG) in the treatment of stiff‐man syndrome (SMS). Methods. An open, unblinded study of 3 patients with active disease and/or disease refractory to treatment with diazepam and/or corticosteroids. Results. All 3 bedridden patients improved substantially shortly after infusion with IVIG and regained function. Conclusion. IVIG may be useful for the treatment of SMS.