Hearing Loss and Complaint in Patients With Head and Neck Cancer Treated With Radiotherapy
Observational Model: Case Control, Time Perspective: Prospective
The hearing loss was evaluated through conventional tone threshold audiometry and a questionaire of hearing handicap was applied to both groups (individuals exposed to radiotherapy and the control group).
We observed mild to moderate hearing losses at frequencies of 57.4% in right ears and 59.6% in left ears in the group exposed to radiotherapy and in the control group, 43.3% ofmild to moderate hearing loss in both ears.Severe or profound hearing losses or anacusis occurred at frequencies of 6.4% in right ears and 8.5% in left ears, versus only 1.4% in the control group.Furthermore, severe handicap was observed in 2.8% of the individuals in the control group, versus 19.1% in the group exposed to radiotherapy.
patientes were evaluated two years after finished the treatement
Brazil: National Committee of Ethics in Research