[Middle ear pressure changes following adenoidectomy. Contribution to the etiopathogenic study of serous otitis media].

This paper deals in the pursuit done on endotympanic pressures in children operated upon adenoidectomy, a lot of them simultaneously suffering from serious otitis media. The obtained results are compared with those of healthy children, with the aim of set up the pressure changes within the middle ear due to surgery and as well the knowledge of the natural evolvement of the serious otitis. In accordance with date registered and the perusal of the Bibliography at hand, the AA. try to find out the possible influence of the adenoid hypertrophy on this type of otitis. But all without arguing the role played by other causes (split palate, neoplastic obstruction, ciliar dyskinesy, etc.). Finally a new etio-pathogenic mechanism, in order to explain the negative pressures inside the middle ear due to adenoid hyperplasty, is proposed.