title: [Symmetric polyarthritis in a patient with Churg-Strauss syndrome].
abstract: METHODS
  A 63-year-old man developed a Churg-Strauss syndrome with predominantly motor-sensory polyneuropathy. Initial treatment with cyclophosphamide and steroids achieved complete remission. Subsequent relapse with marked retinal vasculitis at first was refractory to the standard treatment. Renewed remission was obtained with additional infliximab, and was maintained with azathioprine for 12 months before the patient again presented with symmetrical polyarthritis.
  
  
  METHODS
  Clinical examination revealed a symmetrical polyarthritis involving the joints of the hand and fingers. The acute-phase parameters were raised, the rheumafactor was highly positive. Radiology showed early erosions in the bones of the hand. There were no indices of renewed activity of the Churg-Strauss syndrome.
  
  
  METHODS
  These findings indicated sero-positive rheumatoid arthritis and methotrexate was started, later supplemented with sulfsalazine and hydroxychloroquine because of continuing signs of activity. Infliximab was again given because of further progression, but a severe infusion reaction developed during the second infusion. After changing to etanercept remission of the rheumatoid arthritis was achieved.
  
  
  CONCLUSIONS
  The development of rheumatoid arthritis during remission achieved with azathioprine in Churg-Strauss syndrome of four-year duration is very rare. Repeated dosis of infliximab at long intervals greatly increases the risk of an intolerance.
authors.affiliation: Poliklinik für Rheumatologie Universitätsklinikum Schleswig-Holstein Campus Lübeck/Rheumaklinik Bad Bramstedt.
authors.forename: P M
authors.initials: PM
authors.lastname: Aries
authors.forename: E
authors.initials: E
authors.lastname: Reinhold-Keller
mesh_terms: D000911:Antibodies, Monoclonal / Q000009:adverse effects / Q000627:therapeutic use; D018501:Antirheumatic Agents / Q000627:therapeutic use*; D001168:Arthritis / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*; D001379:Azathioprine / Q000627:therapeutic use; D015267:Churg-Strauss Syndrome / Q000150:complications* / Q000188:drug therapy; D003520:Cyclophosphamide / Q000627:therapeutic use; D004359:Drug Therapy, Combination; D000068800:Etanercept; D005938:Glucocorticoids / Q000627:therapeutic use; D006801:Humans; D006886:Hydroxychloroquine / Q000627:therapeutic use; D007074:Immunoglobulin G / Q000627:therapeutic use; D007166:Immunosuppressive Agents / Q000627:therapeutic use*; D000069285:Infliximab; D008297:Male; D008727:Methotrexate / Q000627:therapeutic use; D008875:Middle Aged; D018124:Receptors, Tumor Necrosis Factor / Q000627:therapeutic use; D012008:Recurrence; D012460:Sulfasalazine / Q000627:therapeutic use
chemical_list: D000911:Antibodies, Monoclonal; D018501:Antirheumatic Agents; D005938:Glucocorticoids; D007074:Immunoglobulin G; D007166:Immunosuppressive Agents; D018124:Receptors, Tumor Necrosis Factor; D012460:Sulfasalazine; D006886:Hydroxychloroquine; D003520:Cyclophosphamide; D000069285:Infliximab; D001379:Azathioprine; D000068800:Etanercept; D008727:Methotrexate