Abstract
Each year, 15,000 head and neck cancer are treated in France. Prognosis is steadily improving. Consequently, limitation of late toxicities becomes essential. Ototoxicity is common, disabling and undervalued. We aimed to inventory primary, secondary and tertiary prevention measures to reduce ototoxicity induced by radiotherapy and chemotherapy, as well as its impact on quality of life of patients treated for head and neck cancer. External radiation therapy induced 30 to 40% of ototoxicity, including irreversible sensorineural hearing loss. Primary prevention of this risk is based on limiting the dose to the cochlea: 40Gy in case of radiotherapy alone, 10Gy during concomitant chemoradiotherapy with cisplatin. Dose gradients allowed by intensity-modulated radiotherapy help respecting these limits. Concurrent chemotherapy with high dose cisplatin (100mg/m2) also causes hearing loss by cochlear damages. Prescription of carboplatin–5-fluorouracil combination or cetuximab should be preferred in case of high risk of ototoxicity. This risk must be precisely evaluated before treatment. Ototoxicity monitoring during treatment allows early management, and lower long-term impact. Radiosensitivity predictive tests and research of genetic factors predisposing to chemo-induced ototoxicity should enable optimization of therapeutic choices and monitoring.
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