A Comparison Study in the Normal Youth Between High-Frequency Audiometry (HFA) and Conventional-Frequency Audiometry(CFA) / 听力学及言语疾病杂志

ABSTRACT

Objective To investigate the different characters between conventional frequency audiometry (125 Hz～8 kKHz) and high frequency audiometry (9～16 kHz)in the normal youth and provide the references for the clinical application of the HFA.Methods 52 male and 48 female normal-hearing subjects were tested with both conventional-frequency (0.25～8 kHz) and high-frequency (10～18 kHz) audiometry.Results Data showed that no difference between male and female in different frequencies. However, the threshold of HFA went up gradually with the frequency increasing. The average threshold of HFA was significantly higher than that of CFA and speech frequency (SFA) and had a positive correlation with both CFA and SFA. Conclusion The results of this study suggest that HFA might be used as an early indicator for CFA and SFA hearing loss resulting from acoustic trauma, ototoxicity and presbycusis.