Sinusitis, otitis and adenotonsillitis in children: a retrospective study.

A retrospective study of 93 cases in which ventilating tubes were required in the therapy of persistent otitis media. Paranasal sinus radiographs, antral washes and cultures of positive washes were used to demonstrate active sinusitis associated with persistent otitis media. Other factors are also of importance, such as allergic or other immune-related disease processes. However, active sinusitis was demonstrated in 25-49% of the cases studied, depending on criteria used.