Survival. Wegener's granulomatosis with polyangiitis is an incurable form of vasculitis (inflammation of blood vessels) that affects the lungs, kidneys, and other organs. Due to its organ damage, it is life-threatening and requires long-term immunosuppression. Five-year survival is up to 87%, with some of the mortality due to toxicity of treatment. Since that is an average figure, some will live longer.
Probably for life. Truth be told, it's likely vanish after a few years. Stay alert, comply with your medications meticulously. Before modern rx, everybody died of it. Dr. Wegener. Like some other decent folks joined the wrong political party as a young man, but be grateful to him anyway for his genius in identifying a disease from which the fast majority of folks now recover.