Ototoxicity represents a clinically significant complication of anticancer therapy in pediatric patients. Cytotoxic agents used in oncology, particularly platinum-based chemotherapy, may induce damage to the auditory and vestibular systems, resulting in hearing loss, tinnitus, and balance disturbances. Even mild hearing impairment during childhood may negatively affect speech perception, language development, communication abilities, and subsequent educational and psychosocial functioning. This narrative review aims to synthesize current evidence on treatment-related ototoxicity in children, with particular focus on commonly implicated therapies, clinical consequences, diagnostic approaches, and potential preventive strategies. A focused literature search was conducted in PubMed for publications from 2019 to 2025 addressing ototoxicity associated with pediatric anticancer treatment and audiological monitoring methods. The analysis indicates that platinum-based compounds, especially cisplatin and carboplatin, remain the primary agents associated with ototoxicity, with reported incidence ranging from approximately 20-70% for cisplatin and 10-30% for carboplatin. Additional risk factors include young age, baseline hearing status, renal function, and exposure to other ototoxic agents such as aminoglycoside antibiotics. Early detection relies on comprehensive audiological monitoring combining behavioral and objective methods, including pure-tone audiometry, extended high-frequency audiometry, otoacoustic emissions, and auditory brainstem response testing. Standardized grading systems such as ASHA, Brock, Chang, and SIOP Boston criteria play a key role in identifying and classifying ototoxic changes. Emerging research focuses on improved monitoring protocols, biomarker identification, and the development of otoprotective strategies, including sodium thiosulfate and experimental molecular therapies. Implementing systematic hearing monitoring and preventive strategies is essential to reduce long-term auditory complications and improve quality of life in pediatric cancer survivors.
Keywords: audiological monitoring; auditory brainstem response; carboplatin; cisplatin; hearing loss; otoacoustic emissions; ototoxicity; pediatric oncology; platinum-based chemotherapy; sodium thiosulfate.