感音神经性聋患儿的听功能综合评估

目的探讨听力测试组合（ABR＋ASSR＋声场环境中的行为测听）在感音神经性聋患儿残余听力评估中的应用价值。方法48名（96耳）感音神经性聋患儿中能配合纯音测听的患儿19人（38耳）设为PTA组,进行纯音测听及ASSR检测;不能配合纯音测听的患儿29人（58耳）设为BA组,进行声场环境中的行为测听（behavior audiometry,BA）、ABR及ASSR检测。结果①PTA组0．5、1、2、4kHz各频率ASSR反应阈与纯音听阈显著相关（P〈0．01）,各频率相关系数分别为0．75、0．76、0．76、0．83,建立本实验室的ASSR—PTA直线回归方程;②BA组23耳ABR无反应但仍可引出ASSR,而ASSR无反应耳ABR均未能引出;BA组29例患儿中ASSR检测反应较好耳（29耳）在0．5～4kHz四个频率上,ASSR可测得83个反应阈值,行为测听可测得89个反应阈值,综合ASSR和行为测听可以得到96个反应阈值。结论与单项听力测试方法相比,听力测试组合（行为测听＋ABR＋ASSR）能为更小年龄、听力损失更重的患儿进行残余听力的评估,同时能对双侧耳间听力差异、各频率的听力损失程度进行评估,为听力损失病变的定位判断提供参考。     

395例聋儿听性稳态反应阈与听性脑干反应阈的比较

目的 探讨听力损失儿童残余听力的评估方法 .方法 应用听性稳态反应(auditory steady-state response,ASSR)与听性脑干反应(auditory brainstem response audiometry,ABR)对395例(790耳)感音神经性聋患儿在睡眠状态下进行各频率ASSR反应阈及ABR的反应阈测试,比较其结果 .结果 395例(790耳)患儿的ASSR高频反应阈与ABR反应阈比较,差异无统计学意义(P＞0.05).结论 对听力损失婴幼儿者进行ASSR与ABR测试,有助于其听力损失程度的评估及干预婴幼儿耳聋诊断,为选配助听器和植入人工耳蜗提供依据.     

聋儿听力评估中听性脑干反应和听性稳态反应引出率的比较

目的 通过比较感音神经性聋患儿听性脑干反应(ABR)和听性稳态反应(ASsR)的引出率,探讨ABR和ASSR对聋儿听力评估的意义.方法对54例(108耳)感音神经性聋患儿分别进行ABR和ASSR测试,比较ABR和ASSR在0.5、1、2、4 kHz各频率的引出率.结果 ASSR在0.5、1、2 kHz引出率都显著高于ABR的引出率(P＜0.01),4 kHzASSR的引出率与ABR引出率比较,差异无统计学意义(P＞0.05).在ABR无反应的65耳中,ASSR 1 kHz引出率达76.9%.结论 在聋儿听力评估中,ASSR较ABR有更高的检出率,对于ABR无反应的患儿还应进行ASSR测试.     

感音神经性聋患者窄带CE-Chirp ASSR测试结果初步分析

目的探讨感音神经性听力损失患者CE-Chirp声诱发听性稳态反应(auditory steady state response,CE-Chirp ASSR)与纯音听阈各频率反应阈值的相关性。方法选取中、重度听力损失患者18例(30耳)为受试者,听性稳态反应调制频率为90 Hz,分别测试窄带CE-chirp ASSR和纯音听阈500、1000、2000和4000 Hz的反应阈值,并进行相关性分析。结果 0.5-4.0 kHz频率CE-Chirp ASSR反应阈与纯音听阈的的相关系数r分别为0.671、0.704、0.563、0.687(P<0.01)。结论 CE-Chirp ASSR反应阈与纯音听阈有显著相关性,在客观听力评估中有较好的准确性。     

感音神经性聋儿童听性稳态反应与行为听阈相关性分析

目的：分析感音神经性聋儿童听性稳态反应（auditory steady－state response,ASSR）与行为听阈的相关性。方法63例（126耳）重度或极重度感音神经性听力损失儿童,年龄0．5～6岁,按年龄分为 A 组（0．5～1．0岁,21例）,B 组（1．1～3．0岁,21例）,C 组（3．1～6．0岁,21例）;分别进行 ASSR 及小儿行为听阈测试,A 组采用行为观察测听（BOA）,B 组采用视觉强化测听（VRA）,C 组采用游戏测听（PA）,采用 SPSS17．0统计软件分析二种检查结果的相关性。结果①ASSR 反应阈与行为听阈在0．5、1、2和4 kHz 处的相关系数分别为0．75、0．76、0．76、0．83,呈极显著相关（P ＜0．01）。②小儿行为听阈值通常比 ASSR 反应阈值低,随着频率的增高,两者间差距缩小。③A 组（相关系数0．70）各频率 ABR 反应阈与行为听阈相关性均较 B（相关系数0．78）、C（相关系数0．83）组低。结论0．5～6．0岁感音神经性聋儿童 ASSR 与行为听阈值均有良好的相关性,ASSR 可预测感音神经性聋儿言语频率的客观听阈,为低龄儿童及难以检测行为听力的患儿验配助听器提供参考。     

多频稳态反应阈与听性脑干反应阈的相关性

目的用多频稳态反应(auditory steady-state response,ASSR)与听性脑干反应(auditory brainstemre-sponse audiometry,ABR)测试聋儿残余听力,观察两者反应阈之间的相关性,对测试结果的准确性做出初步评价。方法对300例(600耳)感音神经性聋儿和30例(60耳)听力正常儿童(对照组)在睡眠状态下进行ASSR与ABR测试,得到不同阈值分布范围,并进行两者反应阈的相关性分析。结果30例(60耳)正常儿童ASSR各频率结果与ABR测试结果进行配对t检验,两者差异无统计学意义(P>0.05)。600例聋儿ASSR高频与ABR测试结果:Pearson统计高频相关系数为0.992,两者有显著相关性。结论ASSR和ABR两者高频反应阈之间有相关性,ASSR频率特性好,对聋儿听力检测及助听器验配具有临床价值。     

听神经病小儿60例分析

目的对60例听神经病小儿进行临床听力学分析,以便提高对此病的认识,避免漏诊及误诊。方法2003年-2005年我院临床医学听觉言语康复中心门诊,对4个月-6岁婴幼儿及儿童诊疗中发现60例聋儿,对声音有反应,但不会讲话,给于ABR、ASSR、OAE、声导抗、影像学检查后,发现异常反应。结果60例(120耳)聋儿ABR严重异常,ASSR、行为测听有部分残余听力、OAE正常、声导抗及影像学方面未发现异常。结论听神经病是一种近期提出的病因不明的听觉障碍性疾病。此病引起具有特殊临床表现与听力学检查表现的感音神经性聋,有助于与感音性聋的鉴别。     

多频稳态诱发电位(ASSR)的临床应用研究(36例极重度感音神经性耳聋幼儿及32例成人感音神经性耳聋患者ASSR测试结果分析)

目的旨在探讨ASSR与ABR在极重度感音神经性耳聋幼儿及成人感音神经性耳聋患者测试中的临床应用价值.方法对36例(72耳)小于3岁极重度感音神经性耳聋幼儿分别行ASSR和ABR测试;对32例(64耳)成人感音神经性耳聋患者分别行ASSR和电测听测试.结果①极重度感音神经性耳聋幼儿ABR均未引出V波,而ASSR在0.5 kHz、1 kHz、2 kHz、4 kHz的引出率分别为66.67%、86.11%、88.89%、94.44%,ASSR在0.5 kHz、1 kHz、2 kHz、4 kHz的阈值均数、标准差分别为82.56±9.26 dB HL、90.31±6.94 dB HL、88.12±7.93 dB HL、88.62±8.12 dB HL.②对成人感音神经性耳聋患者0.5 kHz、1 kHz、2 kHz、4 kHz ASSR测试阈值与电测听语频听阈(dB HL)进行配对两两比较的t检验,各组P值均大于0.05,无显著性差异.结论ASSR有助于极重度感音神经性耳聋幼儿残余听力的客观评估,尤以高频听阈为佳;ASSR与电测听在感音神经性耳聋诊断上有良好的一致性.     

脑性瘫痪患儿听性脑干反应及多频稳态听性反应分析

目的：通过听性脑干诱发反应（ABR）及听性稳态反应（ASSR）分析，探讨脑性瘫痪（脑瘫）患儿的听力障碍及脑干听通道功能变化。方法：采用美国GSIAudera听性脑干反应及听性稳态诱发电位测试仪，测试脑瘫患儿52例104耳。对照组为同龄健康儿童19例38耳。结果：脑瘫组患儿的ABR各波潜伏期及峰间潜伏期均较对照组明显延长；脑瘫组ASSR结果以轻度低频听力损失为著，并且各频率听力损失的平均值非常接近。结论：ABR和ASSR同时应用，为脑瘫患儿听力损失进行定性定量诊断提供了客观的测试方法。     

听性稳态反应和短声诱发的听性脑干反应在客观听阈评估中的作用

目的探讨听性稳态反应(auditory steady-state responses,ASSR)和短声诱发听性脑干反应(ABR)在感音神经性聋人群客观听阈评估中的作用及其在耳聋鉴定中的价值。方法对感音神经性聋组(35耳)及正常组(22耳)分别进行纯音听阈、ABR及ASSR测试,并记录0.5、1、2及4kHz ASSR反应阈(dBHL)、纯音听阈(dBHL)及ABR反应阈(dBnHL)。结果正常组在0.5、1、2、4kHz的ASSR反应阈与纯音听阈相比差异无统计学意义(P>0.05),ABR反应阈与各频率纯音听阈差异有显著统计学意义(P<0.05);耳聋组各频率ASSR反应阈与纯音听阈差异无统计学意义(P>0.05),ABR反应阈与0.5kHz纯音听阈差异有统计学意义(P<0.05),与1、2、4kHz纯音听阈差异无统计学意义(P>0.05)。结论ASSR与ABR联合测试是临床工作中用于客观听阈评估的有效方法。     

Auditory steady-state responses for children with severe to profound hearing loss

OBJECTIVE: To investigate the clinical usefulness of the dichotic single-frequency auditory steady-state response (ASSR) for estimation of behavioral thresholds in children with severe to profound congenital sensorineural hearing loss. DESIGN: A comparative experimental research design was selected to compare behavioral and ASSR thresholds for the sample. Behavioral pure-tone audiometry served as the criterion standard. SETTING: Hearing Clinic, Department of Communication Pathology, University of Pretoria, Pretoria, South Africa. PATIENTS: A referred sample of 10 patients (20 ears), 5 girls and 5 boys aged 10 to 15 years (mean age, 13 years 4 months), with severe to profound sensorineural hearing impairment. MAIN OUTCOME MEASURES: The difference, and correlation, between 160 pure-tone behavioral and ASSR thresholds at 0.5, 1, 2, and 4 kHz. RESULTS: Mean differences between ASSR and behavioral thresholds were 6 dB for 0.5 kHz and 4 dB for 1, 2, and 4 kHz, with standard deviations varying between 8 and 12 dB. No significant differences (P<.05) were observed between ASSR and behavioral thresholds, except at 0.5 kHz, and Pearson correlation coefficients varied between 0.58 and 0.74 across the evaluated frequencies, with best correlation at 1 kHz and worst at 0.5 kHz. CONCLUSIONS: The ASSR thresholds provided reliable estimations of behavioral thresholds for children with severe to profound hearing loss and indicated an increased sensitivity for more profound hearing loss.     

多频稳态诱发电位评估中度感音神经性聋儿童的应用

目的探讨多频稳态听觉诱发电位评估儿童中度感音神经性聋的可靠性。方法所有患者经纯音测听（PTA）检查筛选出中度感音神经性聋30例5～6岁儿童（共40耳），然后口服10％水合氯醛镇静睡眠后，行多频稳态听觉诱发电位（ASSR）检测，其阈值与纯音听阂阈值进行比较，分析不同频率处听力阈值分布情况及其相关性。结果分别比较语言频率ASSR阂值与纯音听闽阈值，结果显示，0．5kHz处相关性较差，其差值为2-18dB，而在4kHz处相关性最好。结论可以应用多频稳态听觉诱发电位评估中度感音神经性聋儿童的听力阈值，但需要注意0．5kHz处的相关性差异。     

Auditory steady-state responses for estimating moderate hearing loss

The auditory steady-state response (ASSR) has gained popularity as an alternative technique for objective audiometry but its use in less severe degrees of hearing loss has been questioned. The aim of this study was to investigate the usefulness of the ASSR in estimating moderate degrees of hearing loss. Seven subjects (12 ears) with moderate sensorineural hearing loss between 15 and 18 years of age were enrolled in the study. Forty-eight behavioural and ASSR thresholds were obtained across the frequencies of 0.5, 1, 2, and 4 kHz. ASSR thresholds were determined using a dichotic multiple frequency recording technique. Mean threshold differences varied between 2 and 8 dB (±7–10 dB SD) across frequencies. The highest difference and variability was recorded at 0.5 kHz. The frequencies 1–4 kHz also revealed significantly better correlations (0.74–0.88) compared to 0.5 kHz (0.31). Comparing correlation coefficients for behavioural thresholds less than 60 and 60 dB and higher revealed a significant difference. Eighty-six percent of ASSR thresholds corresponded within 5 dB of moderate to severe behavioural thresholds compared to only 29% for mild to moderate thresholds in this study. The results confirm that the ASSR can reliably estimate behavioural thresholds of 60 dB and higher, but due to increased variability, caution is recommended when estimating behavioural thresholds of less than 60 dB, especially at 0.5 kHz.     

Auditory steady state response in pediatric audiology

The main issue regarding pediatric audiology diagnosis is determining procedures to configure reliable results which can be used to predict frequency-specific hearing thresholds.AimTo investigate the correlation between auditory steady-state response (ASSR) with other tests in children with sensorineural hearing loss.MethodsProspective cross-sectional contemporary cohort study. Twenty-three children (ages 1 to 7; mean, 3 years old) were submitted to ASSR, behavioral audiometry, click audiometry brain stem response (ABR), tone burst ABR, and predicting hearing level from the acoustic reflex.Resultsthe correlation between behavioral thresholds and ASSR was (0.70- 0.93), for the ABR tone burst it was (0.73 -0.93), for the ABR click it was (0.83-0.89) only at 2k and 4 kHz. The match between the ASSR and the hearing threshold prediction rule was considered moderate.Conclusionthere was a significant correlation between the ASSR and audiometry, as well as between ABR click (2k and 4 kHz) and for the ABR tone burst. The acoustic reflex can be used to add information to diagnosis in children.     

成人感音神经性聋的听觉稳态反应反应阈与纯音听阈

目的探讨成人感音神经性聋的听觉稳态反应（auditory steady-state responses,ASSR）反应阈与纯音听阈的关系。方法选择中国医科大学附属一院耳鼻咽喉科门诊感音神经性聋的成人患者,分别进行纯音听力测试、ASSR检查,比较ASSR在0.5、1、2、4 kHz频率处的反应阈与纯音听阈的相关性及按听力损失程度比较两者的差值。结果 ASSR反应阈与纯音听阈在各频率处的相关系数分别为0.840、0.905、0.886、0.924;随着感音神经性听力损失的加重二者的差值明显缩小。随着频率的增加,两者的差值明显缩小。结论成人感音神经性聋ASSR反应阈与纯音听阈有显著相关性,随着听力损失的加重,ASSR反应阈愈接近纯音听阈,ASSR作为成人感音神经性聋听力定量诊断的客观方法有很大的临床应用价值。     

Auditory steady-state response and auditory brainstem response thresholds in children

The inclusion of the auditory steady-state response (ASSR) into test-batteries for objective audiometry has allowed for clinical comparisons with the most widely used procedure, the auditory brainstem response (ABR). The current study describes ASSR and ABR thresholds for a group of infants and young children with various types and degrees of hearing loss. A sample of 48 subjects (23 female) with a mean age of 2.8 ± 1.9 years SD were assessed with a comprehensive test-battery and classified according to type and degree of hearing loss. Thresholds were determined with a broadband click-evoked ABR and single frequency ASSR evoked with continuous tones (0.25–4 kHz) amplitude modulated (67–95 Hz). Mean difference scores (±SD) between the ABR and high frequency ASSR thresholds were 9.8 (±11), 3.6 (±12) and 10.5 (±12) dB at 1, 2 and 4 kHz, respectively. An ASSR mean threshold for 2–4 and 1–4 kHz compared to the ABR threshold revealed an average difference of 7 (±9) and 7.9 (±8) dB, respectively. The overall correlation between the ABR and ASSR thresholds was highest for the mean ASSR thresholds of 2–4 and 1–4 kHz (r = 0.92 for both conditions). Correlations between the ABR and individual ASSR frequencies were slightly less (0.82–0.86). The average of the 2–4 kHz ASSR thresholds correlated best with the click-evoked ABR for all categories of hearing loss except for the sensorineural hearing loss category for which the 1–4 kHz ASSR average was better correlated to ABR thresholds. Findings demonstrate the reliability of verifying high frequency ASSR thresholds with a click-evoked ABR as an important cross-check in infants for whom behavioural audiometry may not be possible.     

声场中记录的听性稳态助听反应阈与行为测试助听听阈的相关性

目的 应用多频听觉稳态反应(ASSR)Chirp刺激信号在声场中测试助听反应阈,观察其阈值与行为测试助听听阈的相关性,探讨多频听觉稳态反应Chirp刺激信号声场测试评估助听器补偿效果的临床意义.方法 选取22例(39耳)重度感音神经性听力损失、已配戴助听器的患儿(听障组)和16例(32耳)听力正常儿童(对照组)为研究对象.应用国际听力Eclipse EP25型多频稳态诱发电位仪及美国GSI-61型听力计,分别对听障组在声场中使用两种仪器测试助听听阈;对对照组进行裸耳行为听阈与声场中听觉稳态反应阈测试.结果 在0.5、1、2、4 kHz处,听障组ASSR助听反应阈与行为助听听阈的相关系数分别为0.65、0.68、0.77和0.82,P值均<0.01,显示两种测试结果有相关性;对照组裸耳行为听阈与声场中记录的听觉稳态反应阈在0.5、1、2、4 kHz配对t检验均呈显著差异(P<0.01),ASSR声场反应阈高于行为听阈20～30 dB HL.结论 应用多频听觉稳态反应Chirp刺激信号声场测试进行助听器补偿效果评估在临床上具有可行性.     

Estimations of auditory sensitivity for young cochlear implant candidates using the ASSR: preliminary results

This paper presents preliminary results obtained with the use of the auditory steady-state response (ASSR) technique as part of a cochlear implant candidacy assessment protocol for infants. Fifteen infants (30 ears), between 10 and 60 months of age, with severe-to-profound hearing loss participated in the study. ASSR measurements were performed for 0.5, 1, 2 and 4 kHz at intensities up to 120–128 dB HL. The ASSR thresholds were obtained in 74% of the measurements, and exceeded the maximum auditory brainstem response (ABR) intensity output in 91% of cases and the maximum free-field behavioral intensity output in 84% of cases. Eighty-seven per cent of ASSR threshold measurements were measured at intensities of 100 dB HL or higher, and almost half (47%) were measured at intensities of 115 dB HL and higher. Preliminary results indicate that absent ABR and behavioral thresholds do not preclude the possibility of residual hearing, making the ASSR a primary source of information regarding profound levels of hearing loss.