Persistence of antineutrophil cytoplasmic antibodies (ANCA) in asymptomatic patients with systemic polyarteritis nodosa or Churg-Strauss syndrome: follow-up of 53 patients.

Abstract

Persistence of ANCA positivity in PAN and CSS may be a marker of an underlying disease process, but does not adequately reflect disease activity and, thus, in no case should be the only indication for therapeutic intensification.