200例2型糖尿病患者神经传导速度检测分析

目的:探讨2型糖尿病(DM)患者周围神经病变的客观神经电生理特点。方法:分别对200例DM患者,其中有周围神经损害临床表现组(DM-I)100例和无周围神经损害临床表现组(DM-Ⅱ)100例,与50例正常成人进行运动神经传导速度(MCV)、感觉神经传导速度(SCV)、复合肌肉动作电位(CMAP)、感觉神经动作电位(SNAP)进行测定。结果:两组患者所测的MCV、SCV、CMAP、SNAP与正常对照组比较有显著差异,而DM-I组与DM-II所测的MCV、SCW、CMAP、SNAP比较亦有显著差异,下肢神经的4个参数总异常率高于上肢。结论:(1)神经传导速度的检测有助于糖尿病周围神经病的早期诊断。(2)DM并发周围神经损害在临床症状出现之前已有神经传导速度的改变。(3)下肢神经的总异常率高于上肢。     

定量感觉检查在二硫化碳所致周围神经病变诊断中的应用

目的:了解定量感觉检查(QST)在二硫化碳(CS2)所致作业工人周围神经病变诊断方面中的应用价值.方法:使用温度觉分析仪[1]、振动觉分析仪,用改良的“Marstock”方法测定48例接触CS2 5年以上的作业工人(观察组)与48例正常人(对照组)的肢体进行定量温度觉检查(QTT)、定量振动觉检查(QVT),用肌电图/诱发电位仪给予神经传导测定.结果:观察组的QTT、QVT、运动神经传导速度(MCV)、感觉神经传导速度(SCV)异常率均明显高于对照组(P＜0.01),差异有显著意义.观察组中的QTT、QVT异常率明显高于MCV、SCV(P＜0.01),差异有显著意义.有症状的观察组的QTT、QVT、MCV、SCV异常率高于无症状组(P＜0.05),差异有显著意义.提示CS2作业工人的小神经有髓纤维和无髓感觉纤维受损比大神经纤维更常见.结论:QST可为CS2所致周围神经病变的诊断提供可靠的依据.     

定量感觉检查对糖尿病周围神经病的早期诊断价值

目的　探讨定量感觉检查(QST)对糖尿病周围神经病的早期诊断价值。方法　对46例糖尿病 患者神经传导速度(NCV)和QST进行检测,并将其结果进行对比研究。结果　46例糖尿病患者中NCV异常 率为72.8%(35/46),NCV诊断糖尿病周围神经病32例(69.6%);QST异常率为91.3%(42/46),QST诊断 糖尿病周围神经病40例(86.9%),两者差异有显著性(P<0.05)。结论　QST较NCV对糖尿病周围神经病 变的诊断敏感性高;糖尿病患者温度觉异常率显著高于振动觉和NCV;提示其小神经纤维受损比大神经纤维 受损更常见。     

定量感觉检查及神经传导速度测定对多发性神经病的诊断价值

目的探讨定量感觉检查(QST)及其联合神经传导速度(NCV)测定对多发性神经病的诊断价值。方法对60例多发性神经病患者进行QST以及感觉神经传导速度(SCV)、运动神经传导速度(MCV)检测,并比较各项检查的异常率。结果 QST的异常率(83.3%)显著高于SCV和MCV(50.0%,26.7%)(均P<0.05);SCV的异常率显著高于MCV(P<0.05)。QST联合SCV的异常率为95.0%,显著高于MCV的异常率(P<0.05)。结论 QST对多发性神经病的检出率较高,QST联合SCV对多发性神经病具有很高的诊断价值。     

感觉神经定量检测在糖尿病周围神经病诊断中的应用价值

目的探讨感觉神经定量检测在糖尿病周围神经病诊断中的应用价值。方法对我院内分泌科2013-05—2014-10住院的108例糖尿病患者,男70例,女38例;年龄18~83岁,平均54.96岁,进行感觉神经定量检测。结果感觉神经定量检测正常患者8例(7.4%),感觉神经定量检测异常,诊断为周围神经病患者100例(92.6%),在异常患者中,有无髓鞘神经纤维(C纤维)损伤81例(75%),早期神经损伤41例(40.0%)。结论感觉神经定量检测可以准确、客观地检测糖尿病周围神经病,并可检测早期神经损伤,且作为一种无创的检测,患者依从性强,很适用于临床。     

糖尿病周围神经病的神经传导速度测定

目的 观察糖尿病患者的神经传导速度在诊断周围神经病变的应用价值.方法 对我院2009-01-2011-12收治的658例糖尿病患者进行神经传导速度测定常规糖尿病周围神经病变的筛查,分析各神经传导功能以及感觉传导速度和运动传导速度、潜伏期、波幅、波宽、波形等.结果 有四肢远端麻木、刺痛等症状者周围神经病变的阳性率较高,糖尿病病程5 a以上者阳性率也较高.胫后神经病变在四肢神经病变中最常见,其次为腓总神经.传导速度的波幅下降最为灵敏,波形和波宽的变化也较为明显.结论 检测糖尿病患者的神经传导速度可用于周围神经病变的诊断,神经传导速度的变化对周围神经病变具有重要意义.     

肌电图对糖尿病周围神经病的诊断价值

目的：探讨神经肌电图在糖尿病性周围神经病（DPN ）诊断中的应用价值。方法：选择我院2012年1月～2014年6月收治的200例DPN患者的临床资料,分析肌电诱发电位仪对患者的相关神经进行检测的结果。结果：在200例DPN患者中,神经电图总异常率高达71．5％。且随着病程的延长,其EM G异常率的发生逐渐增加。病程在1年以内的患者EM G异常率为40．8％,而病程在10年以上者异常率达到92．2％。病程在1年以内的患者H反射异常率为46．9％,而病程在10年以上者H反射异常率达到94％。其次是腓总神经运动传导速度（MCV）、腓浅神经感觉传导速度（SCV）异常率,分别是43．1％和58．8％,均超过40％。EM G结果提示：病程＜1年组拇短展肌、肱二头肌、胫前肌、趾总伸肌EM G异常率均为0,病程≥10年组异常率分别为17．6％、9．8％、21．5％、31．4％,同样随病程延长而异常率增加。结论：EM G在诊断DPN中具有较高的准确性,有利于早期发现和进行治疗。     

糖尿病患者下肢神经传导功能异常的特征分析

目的探讨糖尿病患者下肢神经传导功能异常的特征。方法搜集223例T2DM患者下肢神经传导检测资料,分析腓深、腓肠、胫神经传导功能。结果(1)158例神经传导异常,异常率70.85%,糖尿病病史1年内、1~4年、5~9年、10~30年异常率分别为61.54%、67.5%、71.19%、79.41%。(2)上述三神经传导速度(NCV)异常率分别为20.67%、16.86%、16.28%;腓深、胫神经波幅异常率为19.94%、11.73%,其末梢潜伏时(DL)异常率为8.94%、5.57%。(3)NCV减慢伴波幅降低和(或)DL延长占47.47%,单纯运动神经(MN)波幅降低占29.75%,单纯NCV减慢占16.46%,DL延长和(或)波幅降低占6.35%。结论(1)T2DM患者随病史延长,糖尿病周围神经病(DPN)发病率升高。(2)T2DM患者下肢神经中,腓深神经较易受累,腓肠神经次之,胫神经受累率低于前两者;在判断MN传导功能指标中,敏感性由高至低依次为NCV、波幅、DL。(3)DPN中,NCV减慢伴随波幅降低和(或)DL延长发生率高于单纯NCV减慢。     

138例糖尿病患者神经电图分析

目的探讨2型糖尿病患者周围神经病变(DPN)的神经电生理特点及其与病程的关系。方法连续记录138例血糖控制良好的糖尿病患者神经电图(包括感觉神经传导速度SCV和运动神经传导速度MCV)的检测结果,并根据糖尿病病程将其分组进行比较。结果共检测周围神经1669条,异常神经313条(18.75%),下肢异常率(132/530,24.9%)明显高于上肢(59/517,11.4%)(P<0.0001),感觉神经(122/622,19.6%)与运动神经(191/1047,18.2%)受累无差异(P=0.5665);糖尿病病程10年以上者运动、感觉神经异常率(24.3%,33%)明显高于病程小于10年组(14.2%,14%)(P<0.001)。病程大于10年组神经传导速度均较病程小于10年组减慢,正中神经、胫后神经运动传导速度和尺神经、腓肠神经感觉传导速度有统计学意义(P<0.05);除尺神经外所查运动神经近远端复合肌肉动作电位波幅(CAMP)病程≥10年组均明显低于病程<10年组。结论尽管受检时血糖控制良好,但依然有周围神经电生理异常变化。2型糖尿病患者下肢神经传导异常率高于上肢,尤以运动神经明显。病程是糖尿病周围神经损害的危险因素,随着病程增加神经传导异常率和损伤严重程度增高。     

Quantitative sensory testing and risk factors of diabetic sensory neuropathy

The goal of this study was to identify risk factors for diabetic peripheral sensory neuropathy in type 2 diabetes mellitus in a Chinese population. Peripheral sensory neuropathy was detected by quantitative sensory testing (5.07/10 g monofilament, neurometer and 128-Hz Riedel Seiffert graduated tuning fork). Those who had two or more abnormal quantitative sensory testings were defined as having diabetic sensory neuropathy. Of the 558 non-insulin dependent diabetes mellitits subjects, 62 (11.1%) had peripheral neuropathy. In 59 (10.6%) detection was by monofilament testing, 45 (8.1%) by graduated tuning fork, and 189 (33.9%) by neurometer. In a multivariate logistic regression model, age and insulin therapy were significantly associated with peripheral neuropathy. Age, serum triglyceride, height, and fasting plasma glucose were independently associated with large fiber neuropathy. Our results confirm the previously identifed multiple risk factors of diabetic neuropathy. Different quantitative sensory testings detect different nerve fiber defects. The weak correlation between these tests indicates the need to use more than one test in screening for diabetic neuropathy. Received: 2 June 1998 Received in revised form: 23 September 1998 Accepted: 10 October 1998     

腕管综合征病人定量感觉测试研究

目的对腕管综合征病人(CTS)进行定量感觉测试(QST)研究,了解CTS病人是否存在小神经纤维的损害并客观评价其感觉障碍的程度。方法对19例临床及常规肌电图及神经传导速度检查证实的CTS病人(共34只手)检测其第2指、3指、5指的温度觉及振动觉。结果患者组第2指、3指、5指的温度觉及振动觉阈值与正常对照组之间存在显著性差异,第2指、3指温度觉异常率在12%~35%之间,振动觉的异常率分别为26%和24%。振动觉的测试结果与神经传导速度之间有很好的相关性。结论应用QST测试可以发现CTS病人存在小神经纤维的损害。QST对于CTS的早期诊断价值不如肌电图-神经传导速度(EMG~NCV)敏感,但可较客观的评价小纤维损害的程度,两者结合,可以对周围神经病变作出全面的评价。     

Value of repeated measures of nerve conduction and quantitative sensory testing in a diabetic neuropathy trial

Conduct of a large, multicenter trial of the aldose reductase inhibitor zenarestat provided data on the reproducibility of multiple electrophysiologic (nerve conduction studies, NCS) and quantitative sensory (QST) tests. Baseline and 12-month electrophysiologic data from approximately 1100 patients at multiple centers were available for analysis. Intersite variability contributed minimally to overall test variance. All NCS tests were highly reproducible. Cool thermal and vibration QST thresholds, as measured by CASE IV instrumentation, were also highly reproducible. Intersubject variance accounted for the majority of variance for all parameters measured. Repeating NCS and QST measures decreased sample sizes needed to show statistical significance. Consideration of these observations, particularly with regard to QST, should aid in the design of future clinical trials investigating neuropathy.     

糖尿病患者周围神经传导速度的研究

目的:通过周围神经传导速度(NCV)的研究,早期诊断糖尿病(DM)患者的糖尿病性周围神经病变。方法:应用上海海军医学研究所NDI-200F神经电检诊仪,对DM组95例患者行尺神经、正中神经、胫神经和腓神经运动传导速度(MCV)及尺神经、正中神经、腓肠神经感觉传导速度(SCV)检测与30例健康人组对照。结果:DM组95例, NCV异常率为77.89%(74/95)。共检测665条神经,MCV380条,异常率55.26%,SCV285条,异常率50.88%,差异无显著性意义(P>0.05)。上肢检测380条神经,异常率45.53%,下肢检测285条神经,异常率63.86%,差异有显著性意义(P<0.05)。DM组SCV波幅减低率为53.66%。DM组按病程分为三组,<5年,30例,异常率28.10%;≥5年,31 例,异常率为54.84%;≥10年,34例,异常率74.37%,组间差异均有非常显著性意义(P<0.01)。DM组中29例无周围神经病变症状与体征,NCV异常11例(37.93%)。结论:周围神经传导速度检测不但可以早期诊断糖尿病患者的糖尿病性周围神经病变,而且此方法可靠、简便、无创。     

Quantitative sensory testing in patients with polyneuropathy and healthy individuals

Aims –  Elderly individuals and patients with polyneuropathy often feel heat pain or burning sensation on quantitative sensory testing (QST) of warm perception distally in the lower limbs. We therefore studied heat pain threshold (HPT), warm perception threshold (WPT) and the difference between heat pain and warm perception thresholds in 48 patients with symptoms and signs of polyneuropathy matched according to age and gender with 48 healthy persons.
Methods –  QST (using method of limits) was performed on the distal calf and the dorsal foot.
Results –  Particularly in the neuropathy group several individuals (58%) had an unpleasant feeling, often burning, when the thresholds according to the WPT algorithm were recorded. Difference between heat pain and warm perception thresholds in the lower calf of the patients was 3.9 ± 3.5 and 5.8 ± 3.4°C in the controls ( P  = 0.012), and on the foot 3.8 ± 2.8 vs 5.3 ± 3.6°C ( P  = 0.02).
Conclusions –  When performing QST it is important to assess also quality features of warm perception, such as burning and heat pain sensation.     

Prevalence of subclinical neuropathy in diabetic patients: assessment by study of conduction velocity distribution within motor and sensory nerve fibres

Nerve conduction velocity distribution (CVD) study is a newly-developed electrodiagnostic method for detecting alterations in the composition of nerve fibres according to their conduction velocity. The presence of subclinical neuropathy was evaluated in 138 diabetic patients by CVD study of four motor nerves (external popliteal and ulnar nerves bilaterally) and two sensory nerves (median nerve bilaterally), and the data obtained were compared with standard electrophysiological parameters in the same nerve segments. CVD studies revealed an altered distribution pattern in 106 of 129 evaluable patients for motor nerves (82%) and in 67 of 115 evaluable patients for sensory nerves (58%), while standard examination gave abnormal findings in 92 of 137 patients (67%) and in 33 of 118 patients (11%), respectively. Of the patients adequately evaluated by both techniques, 21 of 129 patients (16%) revealed altered CVD data unaccompanied by slowing of maximum nerve conduction velocity, and 37 patients of 101 (37%) showed similar findings for sensory nerves. Subclinical alterations of motor and sensory nerve CVD were not significantly related to age or to metabolic control expressed as glycated haemoglobin levels; a significantly longer duration of disease was found in patients with motor and mixed subclinical neuropathy with respect to non-neuropathic patients. The CVD study allowed us to detect subclinical abnormalities of motor and sensory nerve fibres; often this is a more sensitive method than the standard electrodiagnostic study. This method can be very useful as a diagnostic tool and in research in the study of the progression of diabetic neuropathy. Received: 21 March 1997 Received in revised form: 8 September 1997 Accepted: 7 October 1997     

巴曲酶对实验性糖尿病大鼠周围神经传导速度的影响

目的探讨巴曲酶对糖尿病大鼠周围神经传导速度的作用。方法用链脲佐菌素一次性腹腔注射诱导糖尿病大鼠模型,在造模后2月和3月时腹腔注射巴曲酶8Bu/(kg·d),10d后测定坐骨神经运动及感觉神经传导速度。结果糖尿病大鼠在造模后2月和3月时周围神经传导速度明显减慢;用巴曲酶治疗的糖尿病大鼠周围神经传导速度明显加快。结论巴曲酶治疗能纠正糖尿病大鼠周围神经传导速度的异常。