[The damaged types of eustachian tube function in the patients of nasopharyngeal carcinoma after radiotherapy].
OBJECTIVE
To study the types and the influences of eustachian tube function disorder in the patients of nasopharyngeal carcinoma(NPC) after radiotherapy.


METHODS
Thirty-two patients of NPC (50 ears) that the eustachian tube function were damaged after radiotherapy were examined by general examination, audiometer test, tympanometry, Tubo-tymanoaerodynamic grapy (TTAG), sonotubometry and endoscope.


RESULTS
Two cases (4 ears) showed abnormal patency of eustachian tube, the patients' symptoms were lightly. The eustachian tube adhesion were found in five patients(7 ears), and 17 patients(27 ears) showed eustachian tube complete obstruction, eight patients (12 ears) showed eustachian tube uncompleted obstruction, they had the similitude symptoms.


CONCLUSIONS
The damaged types of eustachian tube function in patients of NPC after radiotherapy are different, it will harm the ear function. Finding it out will help to choose the treating measures.
Department of Otolaryngology, First Affiliated Hospital, Guangxi Medical University, Nanning 530021.
Yong
Y
Zhou
Anzhou
A
Tang
Jieen
J
Li
Ping
P
Chen
Rongqing
R
Mao
D000328:Adult; D005064:Eustachian Tube / Q000503:physiopathology* / Q000528:radiation effects*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009303:Nasopharyngeal Neoplasms / Q000532:radiotherapy*; D010034:Otitis Media with Effusion / Q000209:etiology*; D011878:Radiotherapy / Q000009:adverse effects