BSR与BAEP对颅脑损伤后长期意识障碍患者清醒的预测作用

目的探讨脑干反射(BSR)与脑干听觉诱发电位(BAEP)检查对颅脑损伤后长期意识障碍患者清醒的预测效果。方法2013年8月至2015年9月收治颅脑损伤后长期意识障碍患者75例,均接受BSR及BAEP检查。伤后6个月内清醒42例(清醒组),未清醒33例(未清醒组;包括死亡、植物生存状态)。结果清醒组BSR分级Ⅰ级18例,Ⅱ级16例,Ⅲ级8例;未清醒组BSR分级Ⅰ级4例,Ⅱ级2例,Ⅲ级14例,Ⅳ级13例;两组BSR分级差异有统计学意义(P0.05)。将BSR分级Ⅰ级、Ⅱ级作为患者容易清醒的指标,将Ⅲ级、Ⅳ级作为患者难于清醒的指标,其特异度、灵敏度分别为87.50%、81.03%。清醒组BAEP分级Ⅰ级27例,Ⅱ级15例;未清醒组Ⅰ级7例,Ⅱ级17例,Ⅲ级9例;两组BAEP分级差异有统计学意义(P0.05)。将BAEP分级Ⅰ级作为患者容易清醒的指标,将Ⅲ级作为患者难于清醒的指标,其特异度、灵敏度分别为95.67%、78.13%。结论对颅脑损伤后长期意识障碍患者采用BSR及BAEP检查,可有效对患者清醒情况进行预测,为临床防治颅脑损伤提供依据。     

重型颅脑外伤后长期意识障碍患者清醒预测的体感诱发电位分级研究

目的 探讨体感诱发电位(SEP)对重型颅脑外伤(TBI)后长期意识障碍患者清醒预测的分级标准. 方法 记录46例重度TBI后意识障碍超过1周患者的SEP表现,根据SEP中N20-P25是否存在及中枢传导时间(CCT)是否正常,将SEP分为3级:Ⅰ级为双侧N20-P25都存在(Ⅰa:双侧CCT正常且对称,Ⅰb:双侧CCT正常,但不对称);Ⅱ级为一侧N20-P25存在,另一侧消失;Ⅲ级为双侧N20-P25都消失.预后以外伤后6个月患者是否清醒为标准. 结果 SEP分级与清醒的几率存在负相关关系(r=-0.591,P=0.000),分级越高,预后越差. 结论 SEP的分级可客观、准确地反映脑功能损伤程度和清醒的几率.     

重型颅脑创伤长期意识障碍患者清醒预测的MRI分级研究

目的 探讨MRI对重型颅腩创伤后长期意识障碍患者清醒预测的分级标准.方法 记录66例重型TBI意识障碍超过2周患者的MRI表现,以MRI的表现分为3级:Ⅰ级:仅有大脑半球的损伤;Ⅱ级:丘脑、胼胝体的损伤,伴或不伴有I级的损伤灶,包括:Ⅱa级(单侧丘脑的损伤)和Ⅱb级(胼胝体、双侧丘脑的损伤);Ⅲ级:脑干背外侧的损伤,伴或小伴有Ⅰ级和(或)Ⅱ级的损伤灶.预后以颅脑创伤后6个月患者是否清醒为标准.结果 MRI分级与清醒的概率有显著相关性,Pearson相关系数-0.722(P＜0.05),分级越高,预后越差;Ⅱb级、Ⅲ级作为预后不良的指标,判断的敏感性为85.7%,特异性为87.5%,准确率为86.4%,错误率为13.6%;ROC曲线下面积为0.89,95%可信区间为(0.808,0.978).结论 MRI分级可客观、准确地反映颅脑创伤程度和清醒的概率.     

脑干反射对脑创伤意识障碍患者预后的预测价值

目的探讨脑干反射分级标准对脑创伤后期意识障碍患者预后的预测价值。方法分析109例脑创伤后意识障碍患者的BSR表现,将BSR分为4级:Ⅰ级为未出现Ⅱ、Ⅲ、Ⅳ级情况;Ⅱ级为单侧瞳孔对光反射消失、单侧睫状脊髓反射消失、单侧垂直性眼前庭反射消失;Ⅲ级为双侧睫状脊髓反射消失、双侧垂直性眼前庭反射消失;Ⅳ级为双侧瞳孔对光反射消失、眼心反射消失。脑创伤后1年后GOS评分5分、4分归为预后良好,评分3分、2分、1分评为预后不良。结果Ⅰ级预后良好20例,预后不良12例,预后不良率为37.50%;Ⅱ级预后良好14例,预后不良13例,预后不良率为48.14%;Ⅲ级预后良好2例,预后不良28例,预后不良率93.33%;Ⅳ级预后良好0例,预后不良20例,预后不良率为100%。分级与预后差异有统计学意义(P0.001),分级越高的患者清醒越困难(Spearman相关分析:r=-0.591,P0.001)。结论 BSR分级可以较为准确地反映脑干功能状态和预测预后。     

体感诱发电位在重型颅脑损伤长期意识障碍患者清醒预测中的作用

目的探讨重型颅脑损伤(traumatic brain injury,TBI)后长期意识障碍成人患者清醒的影响因素及清醒预测。方法收集47例重度颅脑损伤后(Glasgow coma scale,GCS8)意识障碍超过2周的患者的病例资料,选择5个预后因子:年龄、性别、受伤机制、去骨瓣减压手术、体感诱发电位(somatosensory evoked potentials,SEP)表现方式等分析与清醒结果的关系,将体感诱发电位分为3个等级:Ⅰ级,双侧N20-P25都存在,①双侧CCT正常且对称,N20-P25波幅正常;②至少一侧CCT延长低于其正常均值一倍且N20-P25波幅0.8μV。Ⅱ级,至少有一项达到下列指标,①双侧CCT延长超过其正常均值一倍;②双侧N20-P25波幅0.8μV;③一侧N20-P25消失,另一侧存在。Ⅲ级,双侧N20-P25消失。结果判定以外伤后6个月患者是否清醒为标准。结果 SEP分级与重型颅脑损伤长期意识障碍患者清醒的机率有显著相关性(P=0.002),其对清醒的预测准确率可达87.2%。结论 SEP分级可客观、准确地评估患者的预后及预测患者的清醒机率。     

脑创伤后长期意识障碍患者脑干听觉诱发电位表现与预后清醒的关系

目的 探讨重型创伤性颅脑损伤(TBI)后长期意识障碍患者脑干听觉诱发电位(BAEP)表现与预后清醒的关系.方法 分析63例重型TBI后意识障碍超过2周患者的BAEP表现,主要为BAEP中Ⅰ、Ⅲ、Ⅴ波各波峰潜伏期(PL),Ⅰ～Ⅲ、Ⅲ～Ⅴ波峰间潜伏期(IPL)及Ⅰ波与Ⅴ波波幅比.预后以TBI后6个月患者是否清醒为标准,分为清醒组与未清醒组,组间运用两独立样本t检验以筛选出有意义的指标.结果 本组患者清醒率为34.9%(22/63),BAEP指标异常率为66.7%(42/63).双侧Ⅰ、Ⅲ、Ⅴ波PL,Ⅰ～Ⅲ波、Ⅲ～Ⅴ波IPL及Ⅰ/Ⅴ波幅比均正常的21例中有16例清醒(清醒率为76.2%),双侧Ⅴ波PL异常的8例及双侧Ⅲ～Ⅴ波IPL异常的7例均未清醒,单侧Ⅴ波消失的2例未清醒.清醒组与未清醒组间比较发现双侧差异均有统计学意义的指标为Ⅴ波PL及Ⅲ～Ⅴ波IPL.结论 BAEP的Ⅴ波PL及Ⅲ～Ⅴ波IPL变化可客观、准确地反映脑损伤的程度及预测患者的预后.

Abstract：

Objective To explore the correlation between brainstem auditory evoked potential (BAEP) findings and outcome in long-term unconscious patients with severe traumatic brain injury (TBI).Methods BAEP findings were recorded and analyzed in 63 patients suffering from severe TBI with duration of disturbance of unconsciousness for more than 2 weeks. The peak latency (PL) of wave Ⅰ, Ⅲ and Ⅴ, the interpeak latency (IPL) of wave Ⅰ-Ⅲ and Ⅲ-Ⅴ and the amplitude ratio of wave Ⅰ and Ⅴ were analyzed. Conscious or unconscious at 6 months after the injury was considered as the outcome criterion,and based on these, the patients were divided into conscious and unconscious groups; the significant indicators were chosen in the 2 groups using independent-sample t test. Results The probabilities of awakening in these patients were 34.9% (22/63) with abnormal index of BAEP indicators reaching 66.7%. Sixteen patients were sober at last in 21 patients with normal PL of wave Ⅰ, Ⅲ and Ⅴ, IPL of wave Ⅰ-Ⅲ and Ⅲ-Ⅴ, and amplitude ratio of wave Ⅰ and Ⅴ in bilateral side (the probabilities of awakening were 76.2%); 8 patients having abnormal PL of wave Ⅴ in bilateral side and 7 having abnormal IPL of wave Ⅲ-Ⅴ in bilateral side were unconscious; 2 patients having disappeared wave Ⅴ in unilateral side were unconscious. PL of wave Ⅴ and IPL of wave Ⅲ-Ⅴ in bilateral side were significantly different between the conscious group and the unconscious group. (P＜0.05). Conclusion BAEP findings (PL of wave Ⅴ and IPL of wave Ⅲ-Ⅴ in bilateral side) can objectively and accurately demonstrate the cerebral dysfunction and predict the outcome of the patients.     

应用MRI分级预测颅脑损伤长期意识障碍患者的清醒时间及预后

目的 探讨颅脑损伤长期意识障碍患者MRI分级与清醒时间及预后的关系.方法 收集珠江医院神经外科自2003年至2008年收治的66例重型颅脑损伤后意识障碍超过2周的患者,记录患者颅脑MRI表现并进行分级;记录所有清醒患者损伤后清醒时间;预后以患者伤后6个月时GOS评分进行判别.结果 患者预后(GOS评分)与MRI分级存在联系,分级越高者,预后越差;MRI对预后的预测准确率为83.33%.MRI分级为Ⅰ级和Ⅱa级的清醒患者的平均清醒时间为(8.00±4.10)周,MRI分级为Ⅱb级和Ⅲ级的清醒患者的平均清醒时间为(22.67±23.66)周.结论 颅脑损伤长期意识障碍患者的头颅MRI分级与患者的清醒时间及预后有关,应用MRI分级可客观、准确的预测患者的预后.     

脑创伤长期意识障碍患者脑干反射表现与清醒结果的关系

目的 探讨脑创伤(TBI)长期意识障碍患者脑干反射(BSR)表现与清醒预后的关系.方法 记录自2010年3月至2011年6月南方医科大学珠江医院神经外科收治的60例重型TBI后意识障碍超过2周患者的BSR表现.以TBI后6个月患者是否清醒为标准,分为清醒组与未清醒组,两组间运用独立样本x2检验筛选出有意义的指标. 结果 60例重型TBI患者6个月内清醒36例,清醒率为60.0％.BSR的异常概率为23.8％,BSR中左侧睫脊反射,左侧垂直性眼前庭反射,双侧瞳孔对光反射以及双侧眼心反射出现阴性的表现在清醒与未清醒组间差异差异有统计学意义(P＜0.05),上述BSR异常时患者的未清醒率较高. 结论 BSR的表现可客观、准确地反映TBI长期意识障碍患者的脑损伤程度并对患者的清醒结果进行预测.     

脑干听觉诱发电位与后颅窝肿瘤

脑干听觉诱发电位(BAEP)用于后颅窝肿瘤的诊断已日益受到重视。本文总结分析57例后颅窝不同部位肿瘤的BAEP表现:CPA肿瘤BAEP可归纳为四种类型表现。其他后颅窝肿瘤的BAEP表现呈多样化,其波形的变化是从Ⅳ、Ⅴ波向Ⅲ、Ⅱ波发展;Ⅲ～VIPL比Ⅰ～ⅢIPL延长更显著;常呈双侧波形异常等为主,从而给后颅窝肿瘤的定位诊断提供了依据。     

急性颅脑损伤病人脑干听觉诱发电位动态变化与预后的关系

目的探讨急性颅脑损伤病人脑干听觉诱发电位(BAEP)动态变化与预后的关系。方法动态检测73例急性颅脑损伤病人双侧BAEP,根据BAEP分级标准:Ⅰ级20例,Ⅱ级19例,Ⅲ级17例,Ⅳ级17例。观察BAEP分级变化与GOS的关系。结果颅脑损伤后1周不同BAEP分级预后良好率分别为Ⅰ级90%,Ⅱ级84.2%,Ⅲ级58.8%,Ⅳ级11.8%。BAEP改变与GOS变化存在线性相关关系(χ2回归=25.523,P0.01;χ2偏离=3.675,P0.05);BAEP好转者预后良好率(72.4%)较恶化者(23.1%)显著升高(χ2=8.922,P=0.003)。结论急性颅脑损伤病人BAEP变化与预后存在明显相关性。动态观察BAEP变化可能是评估急性颅脑损伤病人预后的一种有效方法。     

大鼠脑桥、中脑电损伤后脑干听觉诱发电位的敏感性研究

目的 探讨大鼠脑桥、中脑电损伤后脑干听觉诱发电位(BAEP)的敏感指标.方法 SD大鼠80只,分别于左侧脑桥面丘和中脑上下丘之间深部给予电损伤,按照电流刺激量的不同各分为小剂量组(1 mA)、中剂量组(3 mA)、高剂量组(6 mA)、对照组(0 mA),每组10只,记录和比较各组电损伤前后的BAEP各指标的变化.每组取2只行病理学检查.结果 电损伤后,脑组织均有不同程度的神经元坏死等改变,损伤程度随电流量加大而增加.脑桥小剂量组BAEP的V波的PL、Ⅲ～Ⅴ、Ⅰ～Ⅴ波IPL延长,中剂量组的Ⅲ、V波的PL、Ⅰ～Ⅲ、Ⅲ～Ⅴ、Ⅰ～Ⅴ波IPL延长,高剂量组的Ⅲ、Ⅴ波的PL、Ⅰ～Ⅲ、Ⅲ～Ⅴ、Ⅰ～Ⅴ波IPL延长,伴Ⅲ、Ⅴ波的波幅下降;中脑中剂量组、高剂量组V波PL延长,Ⅰ～Ⅴ、Ⅲ～Ⅴ波IPL延长,损伤前后的差值与对照组比较,有统计学意义.结论 (1)BAEP的Ⅴ波PL可能为反映脑桥和中脑损伤的敏感指标;(2)BAEP反映中脑损伤不如脑桥敏感.

Abstract：

Objective To explore the sensitive indexes of brainstem auditory evoked potentials(BAEP)in rats exposed to electric injury in the pons and the midbrains.Methods The pones and midbrains of 80 rats were electric injured beneath the left facial colliculus and quadrigeminal bodies.In the pone group or the midbrain group,the animals were further divided into 4 groups:controls(0 mA),low (1 mA),middle(3 mA)and high electric current(6 mA)respectively,according to the amount of electrical stimulation.The indexes of BAEP were recorded and analyzed before and after injury.Results It was shown that electric injury resulted in neuronal necrosis,the extent of which tended to be designated as much more severe according to the amount of electrical stimulation.In the pone groups,the peak lantency(PL)of waves Ⅴ and the interpeak lantency(IPL)of waves Ⅰ～Ⅴ,Ⅲ～Ⅴ were prolonged at low electric current. However,the PL of waves Ⅲ,Ⅴ and the IPL of waves Ⅰ～Ⅲ,Ⅲ～Ⅴ,Ⅰ～Ⅴ were prolonged at middle and high electric current,and the amplitudes of waves V were decreased at high electric current significantly compared with the controls.In the midbrain groups,the PL of waves Vand the IPL of waves Ⅲ～Ⅴ,Ⅰ～Ⅴ at middle and high electric current were prolonged significantly compared with the controls.Conclusions The peak lantency of the waves V may be the most sensitive indexes of BAEP as to the pons and midbrains injured,but the changes of BAEP is less sensitive in midbrain than in pons.     

前庭阵发症脑干听觉诱发电位的特点

目的探讨前庭阵发症(VP)脑干听觉诱发电位(BAEP)的特点。方法对51例VP患者的BAEP结果进行回顾性分析。结果 BAEP异常者40例,异常率为78.4%。与Ⅰ-Ⅲ波峰间期正常的患者相比,Ⅰ-Ⅲ波峰间期延长的患者男性比例高(χ2=4.763,P=0.029),病程显著延长(t=2.469,P=0.021),而平均年龄差异无统计学意义。与Ⅲ-Ⅴ波峰间期正常的患者比较,Ⅲ-Ⅴ波峰间期延长的患者男性比例、平均病程、平均年龄差异均无统计学意义。与Ⅰ-Ⅲ波峰间期耳间差正常的患者比较,Ⅰ-Ⅲ波峰间期耳间差延长的患者病程相对较长(P=0.055),男性有增多趋势(P=0.058),但差异无统计学意义。结论 VP患者BAEP异常以Ⅰ-Ⅲ波峰间期延长为主,且以男性更多见。病程越长,蜗神经越易受累。     

脑干听觉诱发电位在后循环脑梗死中的临床应用价值研究

目的 通过分析急性和慢性后循环脑梗死患者脑干听觉诱发电位变化特点,探讨脑干听觉诱发电 位（brainstem auditory evoked potential,BAEP）在后循环脑梗死早期识别和诊断方面的临床应用价值。 方法 选择2018年8月-2019年3月在上海第六人民医院神经内科就诊的后循环脑梗死患者为研究 对象,分为急性脑梗死组和慢性脑梗死组,同时设立健康对照组。比较3组BAEP的Ⅰ、Ⅲ、Ⅴ各波峰 潜伏期（peak latency,PL）,Ⅰ～Ⅲ波、Ⅲ～Ⅴ波和Ⅰ～Ⅴ波峰间潜伏期（interpeak latency,IPL）,Ⅲ～Ⅴ波 /Ⅰ～Ⅲ波I PL的比值等指标的特点。 结果 研究共入组急性脑梗死组患者36例,慢性脑梗死组32例,健康对照组32例。急性脑梗死组 Ⅲ波、Ⅴ波PL较慢性脑梗死组（P＜0.001、P =0.005）和对照组（均为P＜0.001）均延长;慢性脑梗死组 Ⅴ波PL较对照组延长（P＜0.001）。急性脑梗死组Ⅰ～Ⅲ波、Ⅰ～Ⅴ波I PL较慢性脑梗死组延长（P＜0.001、 P =0.029）;急性脑梗死组Ⅰ～Ⅲ波（P＜0.001）、Ⅲ～Ⅴ波（P =0.006）和Ⅰ～Ⅴ波（P＜0.001）IPL较对照 组延长;慢性脑梗死组Ⅲ～Ⅴ波I PL（P =0.003）较对照组延长。慢性脑梗死组Ⅲ～Ⅴ/Ⅰ～Ⅲ波IPL比值 异常者有9例（25.0%）,急性脑梗死组2例（6.3%）,两组差异有统计学意义（P =0.001）。 结论 ①BAEP检查能灵敏地检测出急性和慢性后循环脑梗死患者的听觉感觉通路的电生理异常。 ②急性脑梗死患者BAEP的Ⅲ波和Ⅴ波PL、Ⅰ～Ⅲ波和Ⅰ～Ⅴ波IPL均显著延长,以Ⅲ波PL、Ⅰ～Ⅲ波IPL延 长为主;慢性脑梗死患者BAEP以Ⅴ波PL、Ⅲ～Ⅴ波IPL的延长为主。     

面肌痉挛显微血管减压术中脑干听觉诱发电位监测的应用

目的 研究脑干听觉诱发电位(BAEP)监测在显微血管减压术(MVD)治疗面肌痉挛手术中的应用.方法 回顾性分析90例面肌痉挛患者在MVD术中进行BAEP监测的临床资料.结果 MVD手术操作过程均可引起BAEP改变,包括:BAEP的Ⅰ、Ⅲ、Ⅴ波绝对潜伏期明显延长(P＜0.01),Ⅰ～Ⅲ、Ⅲ～Ⅴ、Ⅰ～Ⅴ波间期明显延长(P＜0.01),Ⅲ波、Ⅴ波波幅明显降低(P＜0.01);有16例术中Ⅴ波绝对潜伏期延长超过1ms,Ⅰ波波幅也有明显降低(P＜0.01),但术后无听力障碍;手术结束时Ⅲ～Ⅴ波间期及16例的Ⅰ、Ⅴ波波幅恢复较快.2例术后患侧听力丧失的患者中,1例术中Ⅴ波波幅逐渐降低至消失,另1例术中未监测到Ⅴ波波形.结论 MVD手术操作过程均可引起BAEP改变;Ⅴ波绝对潜伏期延迟超过1ms者相对多见,但无听力受损;Ⅴ波波幅下降程度可为术中神经功能受损提供客观指标,以采取相应措施减少听力并发症的发生.     

Characteristics of brainstem auditory evoked potential of neonates with mild or moderate hyperbilirubinemia

BACKGROUND: Brainstem auditory evoked potential (BAEP) has been widely used to evaluate the functional integrity and development of injured auditory system and brain, especially to objectively evaluate the function of auditory system and brain stem of very young babies, such as neonates and sick babies. OBJECTIVE: To observe the changes of BAEP of neonates with hyperbilirubinemia, and to investigate the relationship of bilirubin concentration and BAEP. DESIGN: An observation experiment. SETTING: Department of Pediatrics, the 309 Clinical Division, General Hospital of Chinese PLA. PARTICIPANTS: Fifty-eight neonates with mild or moderate hyperbilirubinemia exhibiting jaundice within 24 hours after born, who received the treatment in the Department of Pediatrics, the 309 Clinical Division, General Hospital of Chinese PLA between January 2004 and May 2007, were recruited in this study. The involved neonates, 31 boys and 27 girls, had gestational age of 37 to 46 weeks. They had no history of birth asphyxia, and were scored 8 to 10 points when born. Written informed consents of examination and treatment were obtained from the guardians of the neonates. This study was approved by the Hospital Ethics Committee. According to serum total bilirubin value, the neonates were assigned into 3 groups: low-concentration bilirubin group (n =16), moderate-concentration bilirubin group (n =27) and high-concentration bilirubin group (n =15). According to mean daily bilirubin increase, the subjects were sub-assigned into bilirubin rapid increase group (n =39) and bilirubin slow increase group (n =19). METHODS: After admission, all the neonates received drug treatment. Meanwhile, their 116 ears were examined with a myoelectricity evoked potential equipment (KEYPOINT) in latency, wave duration, amplitude and wave shape differentiation of each wave of BAEP. BAEP abnormal type was observed and abnormal rate of BAEP was calculated. MAIN OUTCOME MEASURES: ① Abnormal rate and abnormal type of BAEP. ② Latency of waves Ⅰ, Ⅲ　and Ⅴ, and wave duration of waves Ⅰ to Ⅲ, Ⅲ to Ⅴ, and Ⅰ to Ⅴ. RESULTS: Fifty-eight neonates with mild or moderate hyperbilirubinemia were involved in the final analysis. ①Abnormal type and abnormal rate of BAEP of neonates with hyperbilirubinemia: Among the 116 ears, unilateral or bilateral waves Ⅰ, Ⅲ, Ⅴ still existed. The latency of waves Ⅰ, Ⅲ and Ⅴ was +2.5 s longer than the normal level in 8, 4 and 15 ears, respectively. The wave duration of waves Ⅰ to Ⅲ and waves Ⅲ to Ⅴ was +2.5 s longer than the normal level in 6 and 14 ears, respectively. The wave duration of waves Ⅲ to Ⅴ was longer than that of ipsilateral waves Ⅰ to Ⅲ in 24 ears. The latency difference of wave Ⅴ between two ears was larger than 0.4 ms in 31 neonates with hyperbilirubinemia; The amplitude of wave Ⅴ to that of ipsilateral wave I was lower than 0.5 in 29 neonates. Totally 52 ears were abnormal, and the abnormal rate was 44.8%. One to two months later, 98% abnormal neonates with hyperbilirubinemia recovered. The abnormal rate in the low-, moderate-, and high-concentration bilirubin groups was 37.5%, 44.4% and 53.3%, respectively. ② Comparison of latency and wave duration of each wave of BAEP: Latency of waves Ⅰ, Ⅲ and Ⅴ, and wave duration of waves Ⅰ to Ⅲ and Ⅲ to Ⅴ were gradually prolonged in low-, moderate-, and high-concentration bilirubin groups, but significant difference did not exist between two groups (P > 0.05). ③ There were no significant differences in latency of waves Ⅰ, Ⅲ and Ⅴ, and wave duration of waves Ⅰ to Ⅲ, Ⅲ to Ⅴ and Ⅰ to Ⅴ between bilirubin rapid increase group and bilirubin slow increase group (P > 0.05). CONCLUSION: Auditory acuity and brainstem of neonates with mild or moderate hyperbilirubinemia are damaged to some extent. High-concentration bilirubin causes BAEP abnormality easily. Bilirubin increase and its concentration change are not consistent with nervous lesion degree.     

脑干听觉诱发电位在老年人椎基底动脉供血不足的诊断价值

目的 探讨脑干听觉诱发电位(BAEP)测定对诊断老年人椎基底动脉供血不足(VBI)的临床价值.方法 选择符合可临床确诊为VBI的60例老年患者为病例组,在眩晕症状发作期进行BAEP测定.并选择60例老年体检者为对照组.结果 病例组60例中有26例(43.3%)BAEP测定异常,BAEP测定异常病例中内耳型异常有10例(38.5%),8例表现为波I PL延长,2例表现为波I PL的ILD>0.4ms.脑干型异常16例(61.5%),10例表现为Ⅰ～Ⅲ IPL延长,2例为Ⅲ一Ⅴ的IPL延长和2例为Ⅰ-Ⅴ IPL的ILD>0.4ms等.对照组BAEP检查无异常.结论 BAEP检查为无创和客观测定,对老年人VBI的损伤部位(脑干或听神经通路)及损伤的程度都具有诊断意义,可作为老年人内耳型和脑干型病变定位的客观诊断指标.     

孤独症谱系障碍患儿婴儿期体格、神经心理发育及脑干听觉诱发电位特征

目的:探讨孤独症谱系障碍(ASD)患儿婴儿期体格、神经心理发育及脑干听觉诱发电位(BAEP)特征。方法:收集21例2～6岁ASD患儿(ASD组)在其1、3、6及12月龄时体格发育资料(体质量、身长和头围)、神经心理发育评估资料[包括智力发展指数(MDI)和精神运动发展指数(PDI)]及BAEP检测结果(包括Ⅰ、Ⅲ、Ⅴ波潜伏期及I-Ⅲ、Ⅲ-Ⅴ、Ⅰ-Ⅴ峰间期),并与63名同龄正常儿童(对照组)比较。结果:两组婴儿期各月龄体格发育水平比较差异无统计学意义(P>0.05)。神经心理发育评估显示,12月龄时ASD组MDI和PDI明显低于对照组(P均<0.01)。BAEP检测结果显示,1及3月龄时ASD组BAEPⅠ波、Ⅲ波、Ⅴ波潜伏期、Ⅰ-Ⅲ峰间期、Ⅲ-Ⅴ峰间期及Ⅰ-Ⅴ峰间期明显长于对照组(P<0.05或P<0.01)。ASD组异常频率最多的是V波潜伏期延长(47.2%)。结论:婴儿期早期(1～3月龄)持续V波潜伏期延长、12月龄时神经心理发育迟缓可能为ASD患儿早期特征性改变,可作为ASD早期预警指标之一。