[An assessment of middle ear involvement in children with allergic rhinitis: a comparison with chronic hypertrophic adenoiditis].

The allergic inflammation may contribute to the development of otitis media with effusion (OME). For this reason we have examined two groups of children: the first (group A) formed by 12 children with allergic rhinitis, the second (group B) by 15 children with hypertrophic adenoids. We have found respectively: pathologic otoscopy in 75% and 93% of cases; pathologic tympanometry in 83% and in 90%; pathologic audiometry in 60% and in 83%. This values are not significant according to a statistic analysis. Instead, the degree of compromission has been significant: in fact 16% of the children belonging to group A had a retracted and atelectatic eardrum in comparison with 33% of the children belonging to group B. Also tympanometry has confirmed this aspect: in fact 33% of group A showed type C and B tympanograms in comparison with 77% of group B. Besides, audiometry has confirmed the presence of hearing loss in the subjects with tympanometry of type C and B, belonging to both groups. For this reason the allergic rhinitis, because it may cause OME, must be treated in order to limit the negative effects of allergic nasal obstruction on the functionality of the middle ear.