How are ANCA-positive and ANCA-negative EGPA (Churg-Strauss syndrome) differentiated?

Updated: Dec 02, 2020
  • Author: Spencer T Lowe, MD; Chief Editor: Herbert S Diamond, MD  more...
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In a study of 15 ANCA-positive and 35 ANCA-negative patients with EGPA, ANCA-positive patients had a significantly higher incidence of renal involvement, skin involvement, and peripheral neuropathy in the form of mononeuritis multiplex at the time of diagnosis. Over the entire follow-up period, ANCA-negative patients had significantly more frequent cardiac manifestations. ANCA-positive patients required significantly higher steroid doses to maintain remission. [26]

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