3658 - A Delphi Consensus Recommendations for the Management of Radiation-Induced Hearing Loss in Patients with Nasopharyngeal Carcinoma
Presenter(s)
Y. Wang1, J. D. Sui2, X. Zhang2, and S. Cai3; 1Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China, 2Radiation Oncology Center, Chongqing University Cancer Hospital, Chongqing, China, 3Department of Radiation Oncology, Chongqing University Cancer Hospital, Chongqing, China, Chongqing, China
Purpose/Objective(s): To establish consensus recommendations and standardized protocols for the clinical assessment and management of radiation-induced hearing loss (RIHL), a common yet potentially serious complication in nasopharyngeal carcinoma (NPC) patients receiving radiotherapy, for which effective treatments remain limited.
Materials/Methods: A two-round Delphi survey was conducted with 19 Chinese experts from diverse specialties, including radiation oncology, medical oncology, radiology, and otorhinolaryngology. Utilizing a detailed 68-item questionnaire that addressed diagnosis, prevention, and treatment aspects of RIHL, the panel formulated consensus recommendations.
Results: During radiotherapy planning, the implementation of dose constraints for key auditory structures—namely the tympanic cavity, internal auditory canal and cochlea—was emphasized to preserve auditory function. Diagnostic evaluations were advised to comprise comprehensive assessments such as pure tone and speech audiometry, tympanometry, otoacoustic emissions, auditory evoked potentials, otoscopic examination, and CT/MRI imaging, with classification guided by the 2021 WHO grading criteria for type and severity. Therapeutic approaches should be customized based on disease stage and underlying etiology, incorporating strategies like Eustachian tube function restoration, management of otitis media with effusion, and tailored auditory rehabilitation. However, consensus on the applicability of most interventions was limited due to insufficient or conflicting evidence, underscoring the need for further research.
Conclusion: This consensus provides a structured framework to standardize clinical assessment and management of RIHL, while laying a groundwork for future studies focused on optimizing patient outcomes.