Elevated Level of Myeloperoxidase-Deoxyribonucleic Acid Complex in the Middle Ear Fluid Obtained From Patients With Otitis Media Associated With Antineutrophil Cytoplasmic Antibody-associated Vasculitis

Objective: The purpose was to explore the presence of myeloperoxidase (MPO)-deoxyribonucleic acid (DNA) complex as a surrogate marker of neutrophil extracellular traps (NETs) in the middle ear fluid, and to clarify the correlation between its quantifiable level and hearing outcome in patients with otitis media associated with antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). Study Design: Prospective study. Setting: Tertiary referral center. Patients: Nine AAV patients presenting with otitis media. Intervention: Collection of the fluid samples from middle ear. Main Outcome Measure: The quantifiable levels of MPO-DNA complex using an enzyme-linked immunosorbent assay. Results: The quantifiable levels of MPO-DNA complex in patients with AAV were significantly higher than those in controls (p 
Source: Otology and Neurotology - Category: ENT & OMF Tags: Middle Ear and Mastoid Disease Source Type: research