耳鸣患者的畸变产物耳声发射测试

目的探讨耳鸣患者畸变产物耳声发射（DPOAE）的临床特征，了解畸变耳声发射检测在耳鸣患者中的临床应用价值。方法对42例耳鸣患者进行DPOAE测试及纯音听阈检测，并进行对比。结果耳鸣伴听力下降患者的畸变产物耳声发射在相关频率幅值下降或未引出，二者有相关性；耳鸣伴听力正常患者畸变产物耳声发射均出现高频段幅值下降或缺失。结论对纯音听阈正常的耳鸣患者DPOAE可用于发现早期耳蜗病变，对听力损失者可有助于客观预估听力损失程度。     

驾驶人员畸变产物耳声发射检测与纯音听力测试相关性

目的 探讨畸变产物耳声发射(DPOAE)在检测驾驶人员听力损失的可行性和运用价值.方法 选择纯音听力测试听阈提高的驾驶人员作为检查组30例(60耳);正常体检人员作为对照组20例(40耳),分别进行纯音听力测试和DPOAE测试,比较两组结果.结果 检查组纯音听力测试2、4、8 kHz频率明显提高,与对照组比较差异有统计...     

畸变产物耳声发射在军事噪声致爆震性聋早期监测中的作用

目的探讨畸变产物耳声发射(DPOAE)在军事噪声致爆震性聋早期监测中的作用。方法将听力正常的炮兵某部男性官兵88例(176耳)随机分成两组,每组44例(88耳),实验组参加火炮实弹射击训练,对照组未参加火炮实弹射击训练。对照组及实验组训练前后进行纯音测听及DPOAE测试,对两组结果进行比较分析。结果实验组训练后80耳中耳传导功能无障碍,其中13耳纯音听阈示感音神经性听力损失,DPOAE检查亦异常;67耳纯音听阈正常,其中15耳DPOAE幅值在4kHz处降低。与训练前、对照组比较,实验组训练后2、4及8kHz纯音听阈升高(P<0.05或P<0.01),以4kHz处升高最为明显;实验组训练后2、3、4、6及8kHzDPOAE幅值降低(P<0.05或P<0.01),其中以4kHz处降低最为明显。结论畸变产物耳声发射在军事噪声致爆震性聋早期监测中有一定应用价值,可对其防护、诊断和治疗提供指导和帮助。     

纯音听阈正常老年人畸变产物耳声发射特征

目的探讨纯音听阈正常老年人畸变产物耳声发射(DPOAE)特征。方法对纯音听阈正常的青年对照组39例和老年组30例分别行DPOAE检测,比较两组500～8 000Hz各频率DPOAE的检出率和幅值差异。结果老年组DPOAE检出率在3kHz及以下频率与青年组无明显差异(P>0.05),在4、6、8kHz处均明显低于青年组(P<0.05);老年组DPOAE检出率随频率增加而降低,0.5～3kHz DPOAE检出率高于4～8kHz,其中8kHz检出率最低,其次是6kHz和4kHz;老年组与青年组DPOAE幅值的频率特点基本一致,在中低频率幅值较高,在4kHz及以上频率明显降低;老年组各频率DPOAE幅值均低于青年组(P<0.05),差值平均约5.4dB,6、8kHz差值更大,分别为6.75及9dB。结论纯音听阈正常的老年人在4kHz及以上频率DPOAE幅值明显下降,说明该频率段外毛细胞功能减弱,且该现象青年时已开始显现,非老年人特有。     

纯音听阈正常的耳闷患者诱发性耳声发射分析

目的:对纯音听阈正常的耳闷患者进行诱发性耳声发射分析,以早期发现这些患者的耳蜗损害.方法:采用丹麦Madsen公司Capella耳声发射仪对纯音听阈正常的耳闷患者43例(72耳,耳闷组)及正常人30例(60耳,对照组)分别进行TEOAE及DPOAE检测,记录和分析各频率DPOAE的检出率、幅值,TEOAE的通过率、反应波信噪比、波形重复性及各频带反应波信噪比和重复性.结果:①DPOAE检出率仅在0.50、0.75 kHz两频点上耳闷组明显低于对照组(P＜0.05),其余各频率点差异均无统计学意义(P＞0.05);②TEOAE通过率对照组为100%,耳闷组为90.28%,2组比较差异有统计学意义(X2=6.16,P＜0.05);③与对照组相比,纯音听阈正常的耳闷患者各频率DPOAE的幅值、TEOAE的反应波信噪比、波形重复性及各频带反应波信噪比和重复性均降低,差异有统计学意义(P＜0.05或P＜0.01).结论:部分纯音听阈正常的耳闷患者已存在耳蜗外毛细胞的损害,利用诱发性耳声发射的方法可在其听力损失出现之前早期发现此类病变.     

不同听力检测方法对早期发现噪声性隐性听力损失的意义

目的探讨扩展高频纯音测听、畸变产物耳声发射(DPOAE)及噪声下言语识别能力测试对早期发现噪声性隐性听力损失的意义。方法选取20例常频纯音听阈正常、有噪声接触史的工人(接噪组,年龄20~41岁)与20例无噪声接触史、常频听阈正常的青年人(对照组,年龄19~35岁),分别行扩展高频纯音测听、扩展高频DPOAE及噪声下言语识别能力测试(汉化版噪声下BKB语句测试),记录并比较两组各项测试结果。结果接噪组扩展高频纯音听阈检出率低于对照组,在16 kHz差异有统计学意义(P<0.05),在18、20 kHz差异有显著统计学意义(P<0.01);接噪组8~20 kHz扩展高频纯音听阈平均值高于对照组,在9、18 kHz差异有统计学意义(P<0.05),在14 kHz差异有显著统计学意义(P<0.01);接噪组扩展高频DPOAE的信噪比及幅值均较对照组降低,在10 kHz差异有统计学意义(P<0.05),在8、9 kHz差异均有显著统计学意义(P<0.01);噪声下言语识别能力测试显示接噪组信噪比损失平均值为4.6±2.19 dB,高于对照组(3.00±2.08 dB)(P<0.01)。结论接噪组相较对照组,扩展高频纯音听阈值升高或引不出,扩展高频DPOAE信噪比及幅值降低,噪声下言语识别能力显著下降,以上三种检测方法对早期发现噪声性隐性听力损失有一定的参考价值。     

阻塞性睡眠呼吸暂停低通气综合征患者的早期听觉损害评估手段探讨

目的探讨阻塞性睡眠呼吸暂停低通气综合征(OSAHS)患者的早期听觉损害评估方法。方法对31例(62耳)OSAHS患者和20例(40耳)对照组,分别检测常频(0.125～8 kHz)纯音气骨导和扩展高频(8～16 kHz)气导听阈、瞬态诱发性耳声发射(TEOAE)及畸变产物耳声发射(DPOAE)。结果①常频纯音听阈两组间无显著差异,而扩展高频听阈OSAHS组明显高于对照组(t=3.045～3.779,P=0.000～0.003);②TEOAE检出率OSAHS组为37.1%,而对照组为92.5%,组间差异显著,χ2=30.82,P=0.000;③在各个频率点DPOAE检出率和振幅,OSAHS组明显低于对照组(检出率χ2=22.94～34.31,P=0.000～0.000;振幅t=-2.740～-9.980,P=0.000～0.008)。结论对于OSAHS患者建议用耳声发射、扩展高频测听进行早期听觉损害评估。     

畸变产物耳声发射检测职业性听力损伤的可行性研究

目的 探索畸变产物耳声发射（DPOAE）检测、评估和诊断职业性听力损伤的可行性和临床应用价值。方法 选36例（72耳）噪声暴露青年工人作为实验组，11例（22耳）正常青年人作为对照组，进行纯音听阈和DPOAE幅值、值嗓比和引出率测试。结果 实验组纯音听阈测值在全部频率点均明显提高，与对照组比较有显著性差异（P〈0．05或P〈0．01）。实验组DPOAE幅值和值嗓比在全部频率点均明显下降，与对照组比较有显著性差异（P〈0．01）。实验组DPOAE总引出率下降，与对照组比较有显著性差异（P〈0．01）。f0为1．4、8kHz时，DPOAE频点引出率无明显下降（P〉0．05），而其他频点均明显下降，与对照组比较有显著性差异（P〈0．05或P〈0．01）。结论 用DPOAE测试法检测、评估和诊断职业性听力损伤是可行的，有临床应用价值。其最佳的测试指标为DPOAE幅值、信噪比和总引出率。     

听力正常耳鸣患者的耳声发射

目的　探讨耳鸣与耳蜗毛细胞早期损害的关系。方法　实验组为 5 2例 (86耳 )纯音听力正常的耳鸣患者 ,对照组为 4 0例 (80耳 )听力正常无耳鸣的正常人。二组均行耳声发射检查 ,实验组行耳鸣匹配检查。结果　对照组TEOAE的检出率为 97.5 % ,DPOAE的检出率为 92 .5 % ,SOAE的检出率为 5 2 .5 %。实验组TEOAE检出率为32 .6 % ,DPOAE检出率为 4 8.8% ,SOAE检出率为 4 7.7% ,耳鸣主调多集中在 10 0 0～ 80 0 0Hz。结论　耳鸣患者TEOAE、DPOAE检出率低 ,提示二者有相关性 (P <0 .0 1)。耳鸣预示了耳蜗毛细胞的早期损害 ;实验组与对照组的SOEA检出率无显著性差异 ,其谱峰与耳鸣主调频率无关     

纯音听阈值正常的中青年耳鸣群体耳蜗功能分析

目的 通过纯音听阈值正常的中青年耳鸣群体的耳声发射结果探讨耳鸣群体的耳蜗功能对耳鸣发生的作用。方法 回顾性分析比较64例中青年耳鸣患者和30例纯音听阈值正常的无耳鸣人群畸变产物耳声发射(distortion product otoacoustic emission, DPOAE)、瞬态诱发耳声发射(transient evoked otoacoustic emission, TEOAE)、自发性耳声发射(spontaneous otoacoustic emission, SOAE)的结果,并对SOAE的频率和耳鸣群体的耳鸣匹配频率进行分析和比较。结果 耳鸣组和对照组性别、年龄和平均纯音听阈阈值差异均无统计学意义(P=0.079,P=0.078,P=0.081)。耳鸣组和对照组DPOAE测试所有频率的通过率,除6 000 Hz(P=0.012)外,两组之间差异无统计学意义(P均>0.05)。耳鸣组和对照组TEOAE测试所有频率的通过率两组之间差异有统计学意义(P均<0.05)。对照组SOAE引出率为31.67%,频率范围分布在1 211～4 453 Hz;耳鸣组SOAE引出率...     

Analysis of auditory brain stem response and otoacoustic emission in unilateral tinnitus patients with normal hearing

ObjectiveIn patients with unilateral tinnitus with normal hearing, several studies have compared the ipsilateral and contralateral ears; however, few studies have investigated its relationship with the duration of tinnitus. We compared the auditory brainstem response and otoacoustic emission parameters between ipsilateral and contralateral ears in adults with unilateral tinnitus and normal hearing.MethodsThis retrospective review included 84 patients with unilateral tinnitus and normal hearing who underwent auditory brainstem response and otoacoustic emission; they were categorized according to the duration of tinnitus. The latencies and amplitudes of waves I, III, and V, and V/I ratio of both ears in auditory brainstem response, and the results of distortion-product otoacoustic emission and transient evoked otoacoustic emission were examined. The auditory brainstem response parameters, distortion-product otoacoustic emission parameters, and transient evoked otoacoustic emission parameters between the ipsilateral and contralateral ears along the duration of tinnitus were analyzed. Moreover, the failure rates of both distortion-product otoacoustic emission and transient evoked otoacoustic emission between the ears along with the duration and the effects of the variables on the amplitude and latency of each wave were examined.ResultsIn this study, laterality seemed to have an effect on wave I latency in the multiple linear regression analysis. The distortion-product otoacoustic emission failure rate of the ipsilateral ear was higher than that of the contralateral ear in all patients. However, there was no remarkable difference between the ears in the distortion-product otoacoustic emission and transient evoked otoacoustic emission parameters throughout the duration.ConclusionWe found that outer hair cells and the distal portion of the cochlear nerve are possible pathologic lesions in tinnitus with normal hearing and cochlear synaptopathy could be suspected. Further studies, including those on inner hair cells and higher central cortex, are needed.     

煤矿井下噪声暴露工人畸变产物耳声发射检测

目的探讨畸变产物耳声发射（DPOAE）在监测及早期发现噪声性聋方面的价值。方法对73例142耳耳科正常人（对照组）和78例154耳煤矿井下噪声暴露工人（实验组,其中纯音听力正常组45例90耳,纯音听力异常组33例64耳）,行DPOAE0.5～16kHz检测,两组结果进行比较。结果实验组DPOAE幅值在3.0、4.0、6.0、11.2kHz处下降明显,与对照组比较差异有显著意义（P〈0.05）;而在12.5、14.0、16.0kHz频率两组差异无显著意义（P〉0.05）。纯音听力正常与异常的实验组分别与对照组比较,DPOAE幅值变化趋势相同,纯音听力正常与异常的实验组在3.0、4.0、6.0、11.2kHz处均下降,分别与对照组比较差异有显著意义（P〈0.05）;在11.2kHz处纯音听力异常的实验组下降更显著（P〈0.01）;实验组DPOAE引出率均下降,与对照组比较差异有显著意义（P〈0.05）。结论 DPOAE检查可用于噪声性聋的早期诊断和监测。     

Hearing evaluation with distortion-product otoacoustic emissions in young patients undergoing haemodialysis

Sensorineural hearing loss is frequently reported in young patients with chronic renal failure having haemodialysis. The effect of a single session of haemodialysis on hearing acuity was assessed prospectively in nine children with end-stage renal disease using pure-tone audiometry (PTA) and distortion-product otoacoustic emissions (DPOAEs). Results were compared with those obtained from nine audiologically normal healthy children also tested with PTA and DPOAEs twice during a 4-h interval. Sensorineural hearing loss of unknown aetiology was found in 55.5% of renal patients, mainly in the higher frequencies. Patients on HD had mean PTA thresholds significantly poorer than those of the control group in the frequency range 1000–12 000Hz (P < 0.05). Their mean DPOAE amplitudes were significantly lower in all frequencies > 1184 Hz (P < 0.05). Furthermore, patients' ears with normal PTA thresholds between 250 and 4000 Hz also had decreased DPOAE amplitudes. No significant changes in PTA thresholds or DPOAE amplitudes were encountered in renal patients before and after a HD session (P > 0.05). Changes in PTA thresholds or DPOAE amplitudes were not significantly different than those in the control group (P > 0.05). In conclusion, sensorineural hearing loss of unknown origin, especially in high frequencies, is frequent in young renal patients under HD and single HD sessions do not seem to alter the hearing acuity of these patients. DPOAEs seem to be more sensitive to incipient cochlear damage than behaviour thresholds in monitoring renal patients.     

Early detection of hearing impairment in patients with diabetes mellitus with otoacoustic emission. A systematic review and meta-analysis

Conclusions: The distortion product otoacoustic emission (DPOAE) amplitudes in diabetics were significantly lower than those in controls when pure tone audiometry (PTA) was within normal limits, implying cochlear function impairment in the early stage of diabetes mellitus. Retrocochlear damage was suggested by elongated wave latencies and the wave interval of auditory brainstem response (ABR) in diabetics.

Objectives: This study aimed to systematically analyze the application of DPOAE in evaluation of the hearing function of diabetics.

Data sources and review methods: Eligible articles were identified through searches of nine different electronic databases. Two investigators reviewed the original articles independently, with pre-defined inclusion and exclusion criteria. Meta-analyses were conducted by using Metan module.

Results: There were seven articles eligible for the analysis. PTA thresholds were within normal limits in all diabetics at low–middle frequencies. The mean DPOAE amplitudes of diabetics were significantly lower than those of controls. The standardized mean difference (SMD) (95% CI) was ?0.49 (?0.70, ?0.27), ?0.46 (?0.63, ?0.30), and ?0.60 (?0.77, ?0.43) at 1, 2, and 4?kHz, respectively. The latencies of waves I, III, and V in diabetes were significantly longer than those of controls (0.43 (0.23, 0.64), 0.54 (0.33, 0.75), and 0.56 (0.35, 0.77), respectively). The wave interval I–V was significantly longer in diabetics (p?相似文献   

听力正常耳鸣患者的畸变产物耳声发射测试

目的探讨畸变产物耳声发射(DPOAE)对听力正常耳鸣患者的检测意义. 方法采用ILO96耳动态分析仪对26例(46耳)听力正常耳鸣患者进行DPOAE检测. 结果在听力正常耳鸣患者中,DPOAE正常率为63.04%(29/46耳),DPOAE异常率为36.96%(17/46耳).在DPOAE异常的17耳中,耳鸣频率与DPOAE反应幅值下降频率范围基本对应的有9耳(52.94%),有8耳(47.06%)不完全对应,但较接近. 结论对听力正常耳鸣患者进行DPOAE检测可以早期发现耳蜗存在的轻微损伤,对指导临床治疗,防止耳蜗病变进一步发展具有临床意义.     

397例听神经瘤听力特征分析

目的 分析听神经瘤患者听力学特征,为筛查听神经瘤提供参考依据。方法 回顾性分析2019年8月—2022年4月诊治的397例单侧听神经瘤患者临床资料,所有患者均行纯音测听、声导抗测试、言语识别率(SDS)、畸变产物耳声发射(DPOAE)、听性脑干诱发电位(ABR)和颅脑增强MRI。结果 以典型症状就诊者312例,非典型症状就诊者85例。以突发性聋就诊者25例;患耳听力正常者54例,包含大型甚至特大型肿瘤,99例全聋者亦包含内听道和中型肿瘤。5例全聋者言语识别能力未完全消失。DPOAE一致型245例,耳蜗型72例,蜗后型79例。ABR阳性率98.0%(389/397),8例ABR波形正常者中3例为双侧非对称听力损失。结论 非典型症状就诊者占比21.4%,以突发性聋就诊、听力正常或ABR正常者不能排除听神经瘤;DPOAE和ABR可作为筛查听神经瘤的重要检查方法。     

DPOAE与高刺激率ABR在听力正常耳鸣患者中的应用价值

目的 观察分析听力正常的耳鸣患者畸变产物耳声发射(DPOAE)与高刺激率听性脑干反应(ABR)检测的特征,探讨其在耳鸣评估中的应用价值。 方法 选取耳鼻咽喉科门诊听力正常的青年耳鸣患者31例(46耳)为耳鸣组,另外选取听力结果正常的青年无耳鸣者25例(50耳)为正常对照组,分别进行纯音听阈测定、声导抗测听、DPOAE和高低刺激率ABR的检测,对比两组受试者DPOAE各频检出率和信噪比以及高低刺激率ABR各波潜伏期(PL)、波间期(IPL)、波幅以及两种刺激速率下的潜伏期和波间期差值(△PL和△IPL)。 结果 DPOAE各频检出率两组无显著性差异;信噪比在8 kHz,耳鸣组较对照组降低,差异有统计学意义(P<0.05);高低刺激率ABR结果中,不同刺激速率下两组Ⅰ、Ⅲ、Ⅴ波波幅差异均无统计学意义;高刺激速率下,耳鸣组Ⅰ~Ⅴ IPL较对照组延长,差异有统计学意义(P<0.05),两种刺激速率下,耳鸣组Ⅰ△PL较对照组缩短,差异有统计学意义(P<0.05),耳鸣组Ⅴ△PL、Ⅰ~Ⅴ△IPL较对照组延长,差异有统计学意义(P<0.05)。 结论 DPOAE与高刺激率ABR可作为诊断耳鸣的一种客观检查方法,其对耳鸣的早期评估有重要的应用价值;增加ABR刺激速率,可提高耳鸣检测的敏感性。     

Interpreting auditory brainstem evoked responses and distortion product otoacoustic emissions in diabetic patients with normal hearing

ObjectiveHearing impairment is a reported late complication of diabetes mellitus (DM). Previous studies have suggested that microangiopathic complications may cause cochlear nerve function deterioration. We evaluated the auditory brainstem evoked responses (ABRs) and distortion product otoacoustic emission (DPOAE) results according to the presence of DM in subjects with normal hearing.MethodsA cross-sectional comparative study was conducted from January 2016 to January 2018. Auditory function tests including ABR and DPOAE were performed for outpatients complaining of unilateral tinnitus. All of analyses were conducted in ears without tinnitus on contralateral side of tinnitus ears. We included subjects showing hearing thresholds within 25 dB at 0.5, 1k, 2k, and 4k on pure tone audiometry. 45 ears in patients with type 2 diabetes mellitus and 85 ears in non-diabetic patients were finally enrolled in our study.ResultsDiabetic subjects showed significantly more prolonged absolute peak latencies (I, III, V) and inter-peak latencies (I–V, III–V) than non-diabetic subjects. However, there was no significant difference in the inter-peak latency (I–III) between these two groups. Diabetic subjects also showed significantly lower amplitudes at f2 frequencies of 1001, 1200, 1587, 4004, 5042, and 6348 Hz than non-diabetic subjects. Additionally, the prevalence of a DPOAE response, defined as 3 dB above the noise floor, was significantly lower in diabetic subjects than that in non-diabetic subjects.ConclusionDiabetic patients with normal hearing can still have abnormal ABR and DPOAE results due to diabetic neuroangiopathy. ABR and DPOAE assessments can help in detecting subclinical auditory dysfunction, which precedes the manifestation of hearing impairment in diabetic patients.     

伴感音神经性聋耳鸣的心理声学和听力学特征

目的:研究伴感音神经性聋耳鸣的心理声学特征测试及听力学的特征。方法:选取感音神经性聋耳鸣患者61例(79耳)作为实验组,选取25例(50耳)听力正常且无耳鸣的志愿者作对照组,分别检测2组对象的纯音测听、声导抗测试、耳鸣检测、畸变产物耳声发射(DPOAE),并进行统计学分析。结果:实验组平均后效抑制阳性率为51.3%,其中耳鸣掩蔽曲线为汇聚型者掩蔽效果较好;实验组与对照组DPOAE的通过率差异有统计学意义,实验组(15.2%)低于对照组(96.0%);在500～8 000Hz各个频率点实验组DPOAE幅值低于对照组有统计学意义。结论:耳鸣心理声学测试能够更全面了解耳鸣详细的心理声学特征资料,对耳鸣康复指导提供更加详尽量化指标依据,DPOAE测试可以辅助对耳鸣患者耳蜗病变的诊断。