The research of the contralateral ear hearing thresholds and the hearing prognosis in unilateral Meniere's disease
Objective:This study analyzed the pure tone audiometry results of the affected ear and the contra-lateral ear of unilateral Meniere's disease to investigate the correlation of the hearing threshold of the contralateral ear and the hearing prognosis of unilateral Meniere's disease.Methods:In this study,the follow-up data of 135 pa-tients with unilateral Meniere's disease in Beijing Tongren Hospital were used to analyze the pure tone audiometry results of the affected and contralateral ears at the first visit and 1 year later.Results:①At the first visit,there was no statistically significant difference between the mean hearing thresholds of the affected ear in the normal hearing group and the high-frequency hearing loss group of the contralateral ear(P＞0.05).②The range of im-provement of hearing thresholds in the affected ear was greater in the contralateral ear normal hearing group than in the contralateral ear high-frequency hearing loss group.In the normal hearing group of the contralateral ear,the hearing thresholds of the affected ear at 0.25 kHz(P＜0.01),0.50 kHz(P＜0.01),1.00 kHz(P＜0.01),and 2.00 kHz(P＜0.05)were significantly improved;and in the high-frequency hearing loss group of the contralateral ear,the hearing thresholds at 0.25 kHz(P＜0.01)hearing thresholds improved significantly,and there was no significant difference between the rest of the frequencies before and after treatment(P＞0.05).A consistent pat-tern was observed in both higher and lower age groups.③After 1 year of follow-up,the low and mid-frequency hearing of the affected ear improved.0.25 kHz(P＜0.01),0.50 kHz(P＜0.01),1.00 kHz(P＜0.01)hearing thresholds improved significantly;8.00 kHz hearing thresholds decreased slightly(P＜0.05).Conclusion:After standardized treatment,the results of 1-year follow-up suggested that the low-frequency hearing of MD patients could be improved,but the high-frequency hearing was slightly decreased.The hearing prognosis of the affected ear with normal hearing threshold of the contralateral ear may be better.
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