Middle ear effusion - grommets

In most studies, tubes improved hearing in the short term (about 9 dB at six months and 4 dB at two years). The benefit was attenuated in children who also underwent adenoidectomy (3 to 4 dB at six months and no difference at two years). Differences in speech or language development were minimal or nonexistent. Studies on the adverse effects of tubes are limited but suggest that children given tubes may experience a small long-term hearing loss (mean of 2 to 7 dB) compared with children who have a similar severity of OME but are not given tubes.

Yeah!!!