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  • Title: [Serological Study of Otitis Media with ANCA Associated Vasculitis (OMAAV)].
    Author: Tateyama K, Kodama S, Nomi N, Suzuki M, Kishibe K, Harabuchi Y.
    Journal: Nihon Jibiinkoka Gakkai Kaiho; 2015 Sep; 118(9):1133-42. PubMed ID: 26615664.
    Abstract:
    Otitis media related with ANCA associated vasculitis is an intractable condition conditions that is resistant to conventional conservative treatment or surgical treatments. The name "otitis media with ANCA associated vasculitis (OMAAV)" has been proposed as a new concept for this disease. In the present study, we examined the clinical feature of 14 cases of OMAAV. We also investigated the usefulness of combined tests for ANCA detection. There were 11 females and 3 males, with a median age of 68.5 years. PR3-ANCA was positively detected in 4 (28.6%) patients, MPO-ANCA was detected in 6 (42.9%), and 4 (28.6%) were both ANCAs negative. During the course 6 patients developed pachymeningitis and 5 patients developed facial palsy. Plasma samples from 14 OMAAV patients were tested for the presence of ANCAs with five detection methods (3 PR 3-ANCA kits (direct ELISA, capture ELISA, anchor ELISA), 2 MPO-ANCA kits (direct ELISA, capture ELISA)) and the indirect immunofluorescence (II) technique. Six patients (42.9%) were positive for ANCA in clinical examination (single EIA method), while ANCA was positively detected in 9 patients (64.3%) with combined methods. In ANCA negative cases, ANCA should also be tested with a different technique such as new generation ELISA and IIF.
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