Vasculitic neuropathy-related disability, pain, quality of life, and autonomic symptoms: a survey of 312 patients

To assess self-reported symptoms of neuropathy, disability, pain, health-related quality of life (HR-QOL) and autonomic dysfunction in patients with vasculitis. Patients with vasculitis (with or without neuropathy) were invited by Vasculitis UK to complete an anonymous online survey. Three hundred and twelve patients (71% female) responded. Median age was 61-70 years. Median duration of vasculitis was 4 years (15 years). Vasculitic types included granulomatosis with polyangiitis (34%), unspecified ANCA-associated vasculitis (13%), microscopic polyangiitis (11%), eosinophilic granulomatosis with polyangiitis (11%), giant cell arteritis (10%), non-systemic vasculitic neuropathy (2%) and other (19%). Many patients reported foot/hand symptoms suggestive of neuropathy, including numbness (64%), pain (54%) or weakness (40%). Two hundred and forty-two patients (78%) met our definition of probable vasculitic neuropathy: diagnosis of neuropathy by vasculitis team OR numbness OR weakness in feet/hands. Only 52% had been formally diagnosed with neuropathy. Compared with 70 patients without neuropathy, neuropathy patients had greater disability measured by the inflammatory Rasch-built Overall Disability Scale (centile mean 63.1 [s.d. 17.3] vs 75.2 [16.7]; P