Long-term damage assessment in patients with microscopic polyangiitis and renal-limited vasculitis using the Vasculitis Damage Index.

Objectives The Vasculitis Damage Index (VDI) is used to define the degree of damage occurring in patients with systemic vasculitis. We conducted a retrospective study of 30 patients with microscopic polyangiitis (MPA) and renal-limited vasculitis (RLV).