Hearing Loss and Complaint in Patients With Head and Neck Cancer Treated With Radiotherapy

Department of Audiology, Hospital do Câncer A. C. Camargo, Rua Professor Antonio Prudente 211, São Paulo, Brazil.
Archives of otolaryngology--head & neck surgery (Impact Factor: 2.33). 11/2010; 136(11):1065-9. DOI: 10.1001/archoto.2010.180
Source: PubMed


To investigate occurrences of hearing loss and hearing complaints among patients with head and neck tumors who underwent radiotherapy.
Prospective case-control study.
Tertiary care hospital.
Two hundred eighty-two participants underwent evaluation, including 141 with head and neck tumors and 141 as an age-matched control group. The controls had never undergone oncological treatment that put their hearing at risk.
Results of audiological evaluation, including the Hearing Handicap Inventory for the Elderly questionnaire and pure-tone, speech, and immittance audiometry, and radiation dose received by the auditory system (based on the percentage of the external auditory canal included in the radiation field).
We observed occurrences of hearing loss in 102 (72.3%) of the participants exposed to radiotherapy and 69 (48.9%) of the control group (P < .001). Hearing losses were mostly sensorineural and of mild degree, but those exposed to radiotherapy more frequently presented with severe and mixed-type hearing losses (P < .001). Of the participants exposed to radiotherapy, 19.1% had a severe handicap (P < .001).
Patients undergoing radiotherapy in the head and neck region have a higher incidence of hearing loss and more severe hearing handicap. Trial Registration Identifier: NCT01102621.

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    ABSTRACT: The neurosensory bilateral simetric hearing loss resulting of the oncological treatment is underestimated, because the patients has the hearing detection preserved, reporting complaints in determined situation, or the not comprehension of part of the message. OBJECTIVE: Investigate which are the audiometric frequencies affected are the responsible by the presence of hearing complaints. METHOD: Prospective study evaluating 200 patients with cancer in the childhood out of the oncological treatment in at least 8 years, with average age to the diagnosis of 6,21 years (4,71). Was applied anamnesis to investigate the presence of hearing complaints and performed a tonal threshold audiometry. To check the association between the complaint and the hearing loss, was applied the Exact test of Fisher, with one error a=5%, the patients were split into: normal hearing, hearing loss in 8kHz, loss in 6-8 kHz, loss in 4-8 kHz, loss in 2-8 kHz and loss in < 1-8 kHz. RESULTS: We found 125 patients with hearing loss, 10 presented hearing complaints. Between the patients with hearing loss, 16 presented loss only at 8kHz, and 1 with complaint; 22 with loss in 6-8 kHz, being 3 with complaint; 16 with loss in 4-8 kHz, from them 10 with complaint; 15 with loss 2-8 kHz, being 14 with complaint and 6 with loss in < 1-8 kHz all with complaints. There were a significant relationship between the loss and hearing complaint (p<0,001), when the frequency of 4 kHz was involved. CONCLUSION: The bigger the number of affected frequencies the bigger the occurrence of hearing complaint, most of all when the speech frequencies are involved, and the involvement of 4 kHz already determines the appearing of the complaints.
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    Head & Neck 07/2013; 35(7). DOI:10.1002/hed.23084 · 2.64 Impact Factor
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    ABSTRACT: Background: The aim of this study was to characterize the audiological profile accompanying oncological treatment in patients who had cancer in childhood and had been free of oncological treatment for at least 8 years. Our main interest lay in identifying the affected frequencies that interfered with speech intelligibility (SI) in those who had acquired hearing loss after treatment. Procedure: Two hundred patients who had cancer in childhood were evaluated. Diagnosis was made at the mean age of 6 years old, and hearing evaluation was performed at a mean age of 21 years. Fifty-one of these patients received chemotherapy without cisplatin, carboplatin or head and neck radiotherapy; 64 received cisplatin without head and neck radiotherapy; 75 received head and neck radiotherapy without cisplatin; and 10 received both head and neck radiotherapy and cisplatin chemotherapy. All patients underwent pure tone audiometry and speech audiometry. Results: Patients who had hearing loss primarily had bilateral symmetric sensorineural hearing loss. Although the average SI for ears with hearing loss in the frequency range from 4 to 8 kHz was normal, the Kruskall-Wallis test showed a significant difference between ears without hearing loss and those with hearing loss between 4 and 8 kHz. The average SI score in ears with hearing loss between 1 and 8 kHz was significantly different from all other ears. Conclusions: Hearing loss involving frequencies at and above 4 kHz determines a decline in SI.
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