Abstract
Early detection and appropriate treatment of hearing loss are essential to minimise
the consequences of hearing loss. In addition to conventional audiometry (125---8000 Hz),
extended high-frequency audiometry (9000---20 000 Hz) is available. This type of audiometry
may be useful in early diagnosis of hearing loss in certain conditions, such as the ototoxic
effect of cisplatin-based treatment, noise exposure or oral misunderstanding, especially in
noisy environments. Eleven examples are shown in which extended high-frequency audiometry
has been useful in early detection of hearing loss, despite the subject having a normal conventional
audiometry. The goal of the present paper was to highlight the importance of the
extended high-frequency audiometry examination for it to become a standard tool in routine
audiological examinations.