Intravenous Immunoglobulin Therapy in Livedoid Vasculopathy: Retrospective Observation of Clinical Outcome and Patient's Activity Level.

BACKGROUND: Livedoid vasculopathy (LV) is a rare disease characterized by livedo racemosa, atrophie blanche, ulcerations, and severe pain. Low molecular weight heparins and rivaroxaban can be used in LV-patients. In addition, intravenous immunoglobulins (IVIG) have been described as treatment-option. OBJECTIVES: Objective was to investigate the therapeutic effect of IVIG on ulcer, pain and restrictions in daily life. METHODS: Thirty-two LV-patients who received IVIG at the Department of Dermatology Tübingen between 01/2014 and 06/2019 were identified. Twenty-five of these patients were available for further follow up and were included in the study. Patients were interviewed using a questionnaire focusing on the course of the disease, symptoms, and subjective response to IVIG-treatment. RESULTS: Twenty-five patients were included in the study (mean follow up: 28.9 months). Patients received an average of 6.8 cycles (range 1-45) of IVIG during the observed period.Significant improvements were seen regarding skin findings, pain, and limitation of daily activities. Complete remission of symptoms was observed in 68% of patients. Good tolerability of IVIG was shown in 92%. CONCLUSIONS: A good therapy response regarding ulceration, pain, and daily life restrictions with good tolerability was demonstrated for IVIG (2 g/kg bodyweight over 5 days).