浸出性中耳炎と鼓膜切開

Abstract

Myringotomy is commonly performed in the treatment of otitis media with effusion (OME). However, it has been reported that the effect of myringotomy is limited and that OME recurs frequently after this procedure.In this investigation, the recurrence rate of OME 6 months after myringotomy and factors which affect the recurrence were examined in 94 patients with OME, aged 6 to 83 years. Forty-six patients had paranasal sinusitis, and 9 had allergic rhinitis. Nasal mucociliary function was examined with the saccharin test, described in a previous report.The recurrence rate of OME was 68.1%, similar to that in previous reports. Patients with mucoid effusions had more frequent recurrences than did those with serous effusions (p<0.01). The recurrence rate was significantly higher in children than in adults (p<0.05). Patients with OME for more than 3 months (p<0.001) or bilateral OME (p<0.001) had higher recurrence rates than did those with OME for less than 3 months or those with unilateral OME. OME recurred more frequently in patients with paranasal sinusitis (p<0.001) or allergic rhinitis (p<0.05) than in those without these nasal diseases. The incidence of markedly prolonged saccharin time (over 30 minutes) was significantly higher (p<0.001) in the recurrent group than in the cured group.