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Indexed/Abstracted in: EMBASE, Scopus
Online ISSN 1827-188X
Sarafraz M. 1, Ansari M. 2, Zamani Barsari F. 1, Ahmadi K. 1
1 Department of otolaryngology, head and neck surgery Jondi‑Shapour University of Medical Sciences Ahwaz, Iran;
2 Department of Radiation Oncology Jondi‑Shapour University of Medical Sciences Ahwaz, Iran
Aim: We aimed to investigate the impact of radiotherapy on hearing.
Methods: Fifty patients with head and neck cancers (31 men, 19 women) and mean age of 52.5 (±9.8) referred for radiotherapy, enrolled in this clinical trial. Hearing level was assessed by conventional audiometric tests ‑ including speech discrimination score (SDS), pure tone audiometry (PTA), speech recognition test (SRT), impedance audiometry (I/A) ‑ before and after (at first visit and 3 months later) radiotherapy.
Results: There were no significant changes in SDS and SRT. Main SNHL occurred at frequencies higher than 2 kHz (high tone loss) and in tumors of nasopharynx, parotid, oropharynx and oral cavity and it was less common in tumors of larynx and hypopharynx.
Conclusion: Conventional radiotherapy results in high tone SNHL in patients with head and neck cancers especially nasopharynx, parotid gland, oropharynx, paranasal sinuses and oral cavity cancers which most of these changes are acute.