Effects of large-bore middle ear ventilation tubes.

Patients with chronic otitis media that did not respond to conventional treatment were studied for the types and incidence of complications from the use of large-bore tubes inserted into their ears. The most common complication was otorrhea (41%, 50 of 123 ears). Permanent perforation occurred in 25% (17/68 ears). Use of large-bore tubes proved effective and continues to be indicated in certain conditions of chronic otitis media that are refractory to other forms of treatment.