A preliminary study on horizontal sound localization in patients with unilateral sudden hearing loss during the acute phase
10.16066/j.1672-7002.2025.05.004
- VernacularTitle:单侧突发性聋患者急性期水平方位声源定位能力初探
- Author:
Mengyuan ZHU
1
;
Xiaolin HE
;
Jiaying LI
;
Xing WANG
;
Hongping DING
;
Linan DIAO
;
Xin FU
;
Jiaxing LIU
;
Zihui ZHAO
;
Ningyu WANG
;
Juan ZHANG
Author Information
1. 首都医科大学附属北京朝阳医院耳鼻咽喉头颈外科,北京 100020
- Keywords:
Deafness;
Sound Localization;
unilateral hearing loss;
sudden sensorineural hearing loss;
acute phase
- From:
Chinese Archives of Otolaryngology-Head and Neck Surgery
2025;32(5):288-293
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE To preliminarily assess the horizontal sound localization and its influencing factors in patients with unilateral sudden sensorineural hearing loss during the acute phase.METHODS The azimuth discrimination test and azimuth identification test were completed,with the speech sound(65 dB SPL)as the stimulus.The minimum audible angle(MAA)and root-mean-square error(RMSE)were obtained,and the RMSE of the affected side and the healthy side were calculated respectively.According to the WHO(2021)hearing loss classification criteria,the data were analyzed based on the pure-tone average(PTA)of the affected ear.And the best resident hearing at each frequency of the affected ear was recorded.RESULTS The performance of the unilateral sudden sensorineural hearing loss patients in the sound localization varied greatly.Some performed close to the normal level,while others completely lost the ability to localize sound.The RMSE of the moderate hearing loss group(≥35 dB HL)was significantly higher than that of the normal hearing group(P<0.01),the MAA of the moderate to severe hearing loss group(≥50 dB HL)showed statistically significant differencescompared with normal hearing group(P<0.001).The RMSE of the affected side of patients in the severe and above hearing loss group was significantly larger than that of the healthy side.Regression analysis showed that the best resident hearing at each frequency of the affected ear was the most significant factor affecting MAA(R2=0.572,P<0.001)and RMSE(R2=0.768,P<0.001).CONCLUSION The horizontal sound localization of unilateral sudden sensorineural hearing loss patients in the acute phase varies greatly.When the PTA of the affected side reaches moderate hearing loss,the localization ability is significantly lower than that of normal-hearing individuals.The best resident hearing at each frequency of the affected ear is the key factor affecting the localization ability.
