“…Corticosteroids and immunosuppressants, especially CYC, have improved considerably most symptoms of vasculitis, particularly those involving the gastrointestinal system, skin, and lungs, as well as constitutional symptoms. However mononeuritis multiplex and heart failure in patients with CSS or ANCA-associated systemic vasculitis do not respond to combination therapy with CS and CYC (Abril et al, 2003;Hattori et al, 1999;Renaldini et al, 1993;Sehgal et al, 1995). IVIG therapy has been used to treat various diseases, including MPA, WG, and ANCA-associated systemic vasculitis (Jayne et al, 1991;Lockwood, 1996;Richter et al, 1995).…”