Takihata, Saki1; Mizutari, Kunio1; Siotani, Akihiro1
1 Department of Otolaryngology, National Defense Medical College, Saitama, Japan
The anterior ventilation route, including the epitympanic recess, is important to maintain middle ear pressure. Therefore, opening the anterior ventilation route is a key procedure to avoid recurrence of cholesteatoma. Transcanal approach has advantage to access the anterior ventilation route, thus we analyzed the patency of this lesion on the patients with attic cholesteatoma after transcanal endoscopic ear surgery (TEES).
We analyzed 72 patients (74 ears) received TEES for attic cholesteatoma at National Defense Medical College from 2015 to 2017. The patency of the anterior ventilation route was evaluated by CT images 1 year after surgery.
Of 74 ears, opened and pneumatized anterior epitympanic recess was observed in 60 cases (81.1 %) 1 year after surgery. The recurrence rate was 4.9 %, and hearing success rate was 75.6%.
TEES is useful for restoration of the anterior ventilation route in the patients with attic cholesteatoma.