Relationship between severity of middle ear mucosal lesion and middle ear pneumatic space volume in patients with otitis media with effusion

If we assume that the state of suppression of pneumatic cells is the result of suppression of pneumatic cell growth by inflammatory stimulation in the middle ear pneumatic space, it is possible to improve the state of suppres sion by performing sufficient treatment during the growth period of the pne umatic cells. We indwelt a tympanic membrane ventilation tube thereinafter referred to as tube for treatment of otitis media with effusion (OME) in ch ild patients aged 3-13 years and investigated the following points: ii rela tionship between the severity of inflammation of the lamina propria of midd le ear mucosal specimens (hereinafter referred to as lamina propria) collec ted at the time of tube indwelling and the degree of growth of the pneumati c space: and changes in the pneumatic space associated with treatment by tu be indwelling. a which was studied by comparing the above-described mucosal severity with the pneumatic space area of years;ears after tube indwelling , and with increase in the pneumatic space volume measured periodically aft er tube indwelling. The results indicated that mastoid cell growth suppress ion is higher in patients with a higher degree of inflammatory changes in t he lamina propria. In association with treatment by tube indwelling, effusi on accumulated in the pneumatic space and mucosal swelling disappeared earl y after the treatment. or 2 months of tube indwelling. After th;lt, in pati ents with severe mucosal lesion, a long time, 1.5-2 years, was Found to be required For repneumatization accompanying regrowth of the temporal bone. W e confirmed that the severity of inflammation of the lamina propria is deep ly involved in the growth and repneumatization of the pneumatic cells.