The extent and pattern of organ damage in small vessel vasculitis measured by the Vasculitis Damage Index (VDI)
Objectives: To assess the extent and pattern of irreversible organ damage in patients with Wegener's granulomatosis (WG), microscopic polyangiitis (MPA), polyarteritis nodosa (PAN), and Churg-Strauss syndrome (CSS) by a cross-sectional point prevalence study within a defined geographical area. Methods: The Vasculitis Damage Index (VDI) was recorded for 86 prevalent cases, classified as 46 patients
