Once treated, doctors cannot predict whether vasculitis will come back. Vasculitis is caused by inflammation of the blood vessels and the triggers are unknown. Vasculitis that has been treated and is under control is not called "cured" but rather "in remission." Vasculitis may flare up due to medication changes or if there is a flare of an associated infection.
Because vasculitis and its response to treatment are unpredictable, doctors will schedule follow-up testing on a biweekly or monthly basis for patients receiving immune suppressing therapies to treat their vasculitis. This testing consists of:
- A complete blood count (CBC)
- Kidney function tests
- Liver function tests
- Urine test
- Inflammatory markers (including the ESR and CRP)
Changes in any of these may indicate a flare of vasculitis or a reaction to treatment.
Doctors and patients also have regular discussions about medications and their side effects. Raising, lowering, or eliminating doses of medication should be in consultation with a doctor.
People whose vasculitis is in remission should pay attention to the reappearance of symptoms that they had with their first bout with vasculitis. Earlier treatment of vasculitis will reduce the chance of damage.