Objective To study the correlation between brainstem auditory evoked potentials (BAEP) and susceptibility to noise-induced hearing loss (NIHL). Methods 50 cases with occupational NIHL (the study group, including the mild and moderate deaf groups) and 50 individuals with normal hearing (the control group) were detected by pure tone audiometry (PTA) and BAEP test. The data obtained irthe two groups were compared. Results The PTA and BAEP thresholds of the mild, moderate deaf groups was significantly higher than that of the control group There was statistically significant difference among the three groups (P＜0.01). The difference value between BAEP and PTA of the three groups showed no significant difference (P＞0.05), It is also showed that the difference value of the moderate deaf group was higher than that of the mild deaf group and the control group, with statistically significant difference (P＜0.01). The difference value between the BAEP and PTA of 100 cases was (14.58±7.46) dB, showed a positive correlation (r＝0.755) between the BAEP and PTA. Conclusion BAEP test provides objective and impartial basis for the diagnosis of occupational hearing loss, but is not in full accordance with the subjective speech frequency hearing threshold.%目的 探讨听觉脑干诱发电位(BAEP)与噪声性聋易感性的相关性.方法 使用纯音测听计和听觉脑干诱发电位仪检测50例职业性噪声聋患者和50例听力正常者,比较纯音测听与BAEP反应阈检测结果.结果 轻度、中度噪声聋组的纯音测听结果与BAEP反应阚值均较对照组明显升高,三者比较差异有统计学意义(P<0.01);BAEP反应阈与纯音测听差值三组间差异无统计学意义(P>0.05),两两比较显示,中度噪声聋组差值高于轻度噪声聋和对照组,差异有统计学意义(P<0.01).100例被榆查者BAEP反应阈与纯音测听值的差值为(14.58±7.46)dB,经相关分析发现,BAEP反应阈与纯音洲听值呈正相关(r=0.755).结论 BAEP检测能为职业性听力损伤的诊断提供客观、公正的依据,但与主观语频听阈仍不能完全符合.
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