[Eustachian tube dysfunction after cleft palate surgery : Use of the latest diagnostics]

In patients with cleft palate, a high incidence of chronic obstructive Eustachian tube dysfunction (ETD) is assumed after surgery. Consequently, an increased rate of retracted eardrum or cholesteatoma is expected. Even though no common standard for investigating ETD is available, the development of objective tests has increased during the past 10 years. This study aimed to investigate the incidence of persisting chronic obstructive ETD in adult patients with cleft palate surgically treated in early childhood by using a combination of diagnostic tools.

Adult participants with cleft palate repair in early childhood were invited for a follow-up examination and compared to a control group. Examination included tympanometry, tubomanometry, the Eustachian Tube Dysfunction Questionnaire (ETDQ-7), and the Eustachian Tube Score 7 (ETS-7).

A total of 16 adult patients were re-examined after cleft palate surgery and compared to a control group of 40 healthy individuals. Significant differences were found in the median ETS‑7 (p < 0.0001) score but not in the median ETDQ‑7 (p = 0.09) score. Only 2 of the 32 investigated ears (6%) had pathologic scores in ETS‑7 and ETDQ‑7 (p = 0.09), whereas 5 (31%) cleft palate patients showed symptoms of chronic obstructive ETD according to ETS‑7. No patient had examination findings indicating a requirement for further treatment.

By combining diagnostic tools for ETD, a lower rate of persisting obstructive ETD in adults after cleft palate surgery was found than previously reported. Successful surgical treatment of cleft palate seems to lead to physiological Eustachian tube function in long-term follow up.