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Evaluation of degree of nerve root injury by dermatomal somatosensory evoked potential following lumbar spinal stenosis 被引量:2
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作者 Ningjiang Shen Guangji Wang Jian Chen Xiaoli Wu Yutian Wang 《Neural Regeneration Research》 SCIE CAS CSCD 2008年第11期1249-1252,共4页
BACKGROUND: Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) can display the site of lumbar spinal stenosis and predict nervous compression at the morphological level; however, pure morphological cha... BACKGROUND: Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) can display the site of lumbar spinal stenosis and predict nervous compression at the morphological level; however, pure morphological changes cannot reflect functional alterations in a compressed nerve root. Dermatomal somatosensory evoked potential (DSEP) provides a means to assess the functional state of a nerve root. OBJECTIVE: To evaluate the clinical significance of DSEP, assessing the degree of nerve root injury following lumbar spinal stenosis. DESIGN, TIME AND SETTING: A case-control study was performed in the Department of Orthopaedic Surgery, Hainan People's Hospital, China, between September 2004 and December 2007. PARTICIPANTS: Forty-seven patients diagnosed with lumbar spinal stenosis by CT or MRI were selected as the case group; fifty healthy subjects were collected as the control group. METHODS: A KEYPOINT myoelectric evoked potential apparatus (DANTEC Company, Denmark) was used to measure DSEP, and stimulative spots were determined in accordance with the skin key sensory spot standards established by The American Spinal Injury Association: L4 in the medial malleolus, L5 in the third metatarsophalangeal joint of the dorsum of foot and S1 in the lateral heel. The needle electrode used as the recording electrode was located at the Cz point of the cranium, and the reference electrode at the Fz point. MAIN OUTCOME MEASURES: Latency of the P40 peak of DSEP, P1-N1 amplitude, P40 waveform and differentiation and disappearance of various waves. RESULTS: The sensitivity and diagnostic concurrence with surgery of nerve root injury following lumbar spinal stenosis evaluated by DSEP was 95.7 %. P40 latencies at L4, L5 and S1 in the case group were significantly longer than in the control group (P 〈 0.05), and the P1-N1 amplitude in the case group was significantly lower than the control group (P 〈 0.05-0.01). Nerve root injury was categorized according to DSEP latency as follows: severe damage (disappearance of the P40 wave in 103 dermatomes), moderate damage (prolongation of the P40 peak latency ≥ 3.0 times the standard deviation of the normal mean in 60 dermatomes) and mild damage (prolongation of the P40 peak latency ≥ 2.5 times the standard deviation of the normal mean in 31 dermatomes). CONCLUSION: DSEP can be used to determine the severity of nerve root injury following lumbar spinal stenosis with high sensitivity and specificity. 展开更多
关键词 dermatomal somatosensory evoked potential lumbar spinal stenosis nerve root injury
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Reliability of dermatomal somatosensory-evoked potential in the evaluation of lumbosacral nerve root injury A concurrent case-control study 被引量:2
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作者 Ningjiang Shen Jian Chen Guangji Wang Xiaoli Wu Yutian Wang 《Neural Regeneration Research》 SCIE CAS CSCD 2008年第1期57-60,共4页
BACKGROUND: It has been reported that dermatomal somatosensory evoked potential (DSEP) can be used for diagnosing nerve root injury in patients with lumbar disc herniation (LDH), and that 83% 95% of patients suff... BACKGROUND: It has been reported that dermatomal somatosensory evoked potential (DSEP) can be used for diagnosing nerve root injury in patients with lumbar disc herniation (LDH), and that 83% 95% of patients suffer from the disease. Body height correction is not performed prior to determinations of latency and latency difference between the healthy and affected sides. However, latency noticeably correlates to body height. OBJECTIVE: This study aims to determine the lumbosacral nerve root injury in patients with LDH by DSEP, and to evaluate the sensitivity of the DSEP difference between the healthy and affected sides using a diagnostic index following body height correction. DESIGN: A case-control observation. SETTING: Department of Orthopedic Surgery, Hainan Provincial People's Hospital. PARTICIPANTS: Ninety-six patients, comprised of 67 males and 29 females, with an average age of 43 years and a mean body height of 1.65 m (range 1.48-1.81 m), were recruited for this study. These patients suffered from unilateral lower limb radiation pain and received treatment at the Department of Orthopedic Surgery, Hainan Provincial People's Hospital between January 2004 and December 2006. All patients were confirmed to suffer from LDH at the L3-4, L-5, and/or Ls-SI by CT and/or MRI examinations. Central nervous system diseases were excluded. In order to obtain a normal reference value, DSEP was determined for a group of 50 subjects, who concurrently received health examinations in the same department. The subjects had no previous history of back leg pain or nervous system disease. The group of healthy controls included 26 males and 24 females, with an average age of 37 years and a mean body height of 1.63 m (range 1.50-1.80 m). Written informed consent was obtained from all subjects for laboratory samples. The protocol was approved by the Hospital's Ethics Committees. DSEP was determined with myoelectricity-evoked potential equipment (Keypoint, Batch No. 9020A0042591, Dantec Company, Denmark). METHODS: DSEP of patients with LDH was determined. Constant-voltage square pulse stimulation was used to determine DSEP, with the following parameters: a pulse wave width of 0.2 milliseconds; a saddle-like stimulating electrode; a stimulation intensity 3 times greater than the sensation threshold; a stimulation frequency of 1.5 Hz; mean superposition greater than 100 times; and inter-electrode impedance 〈 5 k Q. The stimulation point was a skin key sensation point confirmed by the American Spinal Injury Association, i.e. L4 at medial malleolus, L5 at the third metatarsophalangeal joint on the dorsum of the foot, and SI at the lateral heel. The recording electrode was a needle electrode, the recording point was Cz, and the reference electrode was Fz. DSEP latency of P40, and latency differences of P40, between the healthy side and the affected side, were determined. DSEP at L4, L5, and S1 nerve roots of the lower limbs of 50 healthy controls were bilaterally determined. The normal values of P40 latency and P40 N50 amplitude were statistically obtained. MAIN OUTCOME MEASURES: Determination of DSEP values. RESULTS: Ninety-six patients with LDH and fifty healthy controls participated in the final analysis. In the healthy controls, the amplitude of DSEP varied greatly, with a mean amplitude co-efficient of variation of 58% for L4, L5, and SI dermatomes. P40 latency was stable, with a mean latency coefficient of variation of 4.7%. In patients with LDH, the P40 wave disappeared. P40 latency was 2.5 times prolonged compared to normal mean value. P40 latency difference between the healthy and the affected side was 2.5 times higher than the normal mean value of the healthy side. CONCLUSION: DSEP can reflect the functional status of lumbosacral nerve root. P40 latency difference between the healthy side and the affected side is the most sensitive diagnosis index for patients with LDH suffering from unilateral lower limb radiation pain. 展开更多
关键词 dermatomal somatosensory evoked potential lumbar disc herniation nerve root injury
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THE SIGNIFICANCE OF DERMATOMAL SOMATOSENSORY EVOKED POTENTIALS IN THE DIAGNOSIS OF LUMBOSACRAL NERVE ROOT COMPRESSION
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作者 李辉 陈君长 +2 位作者 王坤正 贺西京 鱼全生 《Journal of Pharmaceutical Analysis》 CAS 1996年第1期66-69,共4页
in this study, conical somatosensory evoked potentials (SEPs)following electrical stimulation of the skin of LS and SI dermatomes were recorded cephalically and observed in 19 patients with clinically proved unilatera... in this study, conical somatosensory evoked potentials (SEPs)following electrical stimulation of the skin of LS and SI dermatomes were recorded cephalically and observed in 19 patients with clinically proved unilateral L5 or S1 nerve root compression, and the results were compared with those of the control group or 20 healthy volunteers and showed that dermatomal SEPs were abnormal in 12 with the rate of 63%,most or which showed abnomalities or the lateral latency difference. It is concluded that dermatomal SEP is a useful addition to the diagnosis or lumbosacral nerve root compression. When the unilateral nerve root is compressed the lateral latency dirference is a most sensitive criterion for indicating abnomality. 展开更多
关键词 somatosensory evoked potentials (SEPs) lumbosacral nerve root compression dermatomE
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Dermatomal Somatosensory Evoked Potentials: An Indicator of Improvement of Breast Sensibility after Reduction Mammaplasty
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作者 Mohammad Abu-Hegazy Wael Gabr +1 位作者 Hossam El-Din A. Ismail Ahmad A. Khalil 《Neuroscience & Medicine》 2016年第3期106-113,共8页
Introduction: Many women think about reduction mammaplasty for different reasons. The effect of surgery on the beast sensibility is one of the greatest concerns after reconstructive reductive breast surgery through it... Introduction: Many women think about reduction mammaplasty for different reasons. The effect of surgery on the beast sensibility is one of the greatest concerns after reconstructive reductive breast surgery through its affect on patient’s social life and psychological health. The dermatomal somatosensory evoked potential (D-SEP) is a new method to quantitatively evaluate breast sensibility. Patients and Methods: Twenty-five women enrolled in this study presenting with breast enlargement, underwent mammary reduction by using the inferior pyramidal breast reduction technique using the same operative technique described by Robbins with some modifications. All D-SEP amplitudes and latencies were calculated preoperatively and then were reassessed six and twelve months post-surgery in each breast. Result: The results revealed that there is a significant difference in the D-SEP latency pre- and post-operatively. The statistically significant decrease in latency and the breast size demonstrated indicates that the sensibility improved after breast reduction surgery both at six and twelve months. There is also a significant increase in the D-SEP amplitude pre- and post-operatively. The negative and statistically significant increase in amplitude with the decrease in breast size demonstrated indicates that the sensibility improved after breast reduction surgery both at six and twelve months. Conclusion: This study concluded that breast sensibility will improve after breast reduction as indicated by significant reduction of D-SEP latencies and increase of its amplitudes. Our results confirm an inverse relationship between breast size and sensibility, with improvement in sensibility after breast reduction. 展开更多
关键词 Breast Sensibility Reduction Mammoplasty dermatomal somatosensory evoked potentials
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腰_5、骶_1皮节刺激节段性体感诱发电位对腰骶神经根病变诊断的价值探讨 被引量:12
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作者 袁福镛 齐华光 余路得 《中国脊柱脊髓杂志》 CAS CSCD 1995年第2期62-64,共3页
1992年6月~1993年6月对100例临床诊断腰椎间盘突出的患者进行下肢常规(胫后神经)皮层体感诱发电位(CSEP)检查,同时进行L_5、S_1皮节刺激节段性体感诱发电位(DSEP)检查,发现DSEP可提高常规胫后神... 1992年6月~1993年6月对100例临床诊断腰椎间盘突出的患者进行下肢常规(胫后神经)皮层体感诱发电位(CSEP)检查,同时进行L_5、S_1皮节刺激节段性体感诱发电位(DSEP)检查,发现DSEP可提高常规胫后神经CSEP诊断的敏感性及准确性,防止其局限性,为临床诊断提供更可靠依据。 展开更多
关键词 椎间盘突出 节段性 体感诱发电位 腰骶神经根病
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经身高校正后皮节体感诱发电位对腰骶神经根损害的诊断价值 被引量:3
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作者 沈宁江 陈建 +2 位作者 王广积 吴晓丽 王宇田 《中国脊柱脊髓杂志》 CAS CSCD 2008年第2期94-98,共5页
目的:探讨皮节体感诱发电位(DSEP)潜伏期经身高校正后对腰骶神经根受损的诊断价值。方法:对50例正常人进行DSEP检测,先测定身高,再分别测定双下肢L4、L5、S1神经根P40峰潜伏期,用每一例正常人L4、L5、S1神经根的P40峰潜伏期除以本人身高... 目的:探讨皮节体感诱发电位(DSEP)潜伏期经身高校正后对腰骶神经根受损的诊断价值。方法:对50例正常人进行DSEP检测,先测定身高,再分别测定双下肢L4、L5、S1神经根P40峰潜伏期,用每一例正常人L4、L5、S1神经根的P40峰潜伏期除以本人身高,再经统计得出50例正常人经身高校正后L4、L5、S1神经根的P40峰潜伏期值。对96例临床诊断并经手术证实的有单侧下肢放射痛症状的腰椎间盘突出症(LDH)患者术前进行DSEP检测,分别测定健侧与患侧L4、L5、S1神经根。DSEP异常的诊断标准:P40波消失,P40峰潜伏期延长超过正常均数2.5倍标准差,P40峰潜伏期侧间差超过健侧均数2.5倍标准差。结果:50例正常人在身高校正前L4、L5、S1神经根的P40峰潜伏期分别为37.34±2.18ms、44.99±2.91ms和40.99±2.64ms,经身高校正后分别为身高×(22.88±1.08)ms、身高×(27.55±1.34)ms和身高×(25.06±1.11)ms。96例LDH患者中,P40峰潜伏期不经身高校正有86例DSEP异常,诊断符合率为89.6%;经身高校正后则有92例DSEP异常,其诊断符合率为95.8%,与身高校正前比较有显著性差异(P<0.05)。结论:DSEP能反映腰骶神经根功能状态,经身高校正后DSEP诊断符合率得到提高,具有重要的临床应用价值。 展开更多
关键词 皮节体感诱发电位 腰椎间盘突出症 神经根损害 诊断
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皮节体感诱发电位在术中评价腰骶神经根减压效果的价值 被引量:4
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作者 高维涛 李放 章建萍 《中国脊柱脊髓杂志》 CAS CSCD 北大核心 2012年第9期818-823,共6页
目的:探讨皮节体感诱发电位(dermatomal somatosensory evoked potentials,DSEP)术中评价腰骶神经根减压效果的适用指标及其临床价值。方法:2011年5月~2011年12月对46例以感觉障碍为主诉,经查体、腰椎MRI及术前DSEP检查证实存在单侧腰... 目的:探讨皮节体感诱发电位(dermatomal somatosensory evoked potentials,DSEP)术中评价腰骶神经根减压效果的适用指标及其临床价值。方法:2011年5月~2011年12月对46例以感觉障碍为主诉,经查体、腰椎MRI及术前DSEP检查证实存在单侧腰骶神经根(L5或S1神经根)受压而接受神经根减压手术的患者进行术中DSEP监测,男34例,女12例;年龄20~63岁,平均41.2岁。其中L5神经根受累36例,S1神经根受累10例,MRI显示为旁侧型椎间盘突出或神经根管狭窄。记录并比较麻醉后至减压前及减压后受累神经根的P40潜伏期和波幅,术中结合自发肌电(EMG)监测相应节段神经支配肌肉,作为可能出现即时神经根医源性损伤的预警。术前、术后采用VAS评分和ODI评估患者的临床疗效,比较术前、术后的VAS及ODI评分。结果:术中自发EMG均未提示神经根医源性损伤。减压后32例患者潜伏期延长<0.1,14例潜伏期缩短,其中8例改善率≥0.1。根据潜伏期改善率分为三组:无改善组(改善率≤0)、改善组(0<改善率<0.1)以及明显改善组(改善率≥0.1),无改善组的VAS改善率显著低于其他两组(P<0.05),明显改善组与改善组的VAS改善率无显著性差异(P>0.05),术后6个月随访时三组之间的ODI改善率无显著性差异(P>0.05)。减压后所有患者P40波幅均无降低,其中明显改善(改善率≥0.5)37例,改善(0.3≤改善率<0.5)4例,无明显改善(改善率<0.3)5例,明显改善组术后VAS改善率显著性大于其他两组(P<0.05);术后6个月随访时明显改善组和改善组的ODI改善率均显著性大于无明显改善组(P<0.05),而前两组之间的ODI改善率无显著性差异(P>0.05)。P40波幅改善率与VAS改善率和病程之间存在相关关系(P<0.05)。结论:对于病史较短且有典型相应皮区感觉症状的单侧腰骶神经根压迫患者,减压术中受累神经根DSEP P40波幅改善率可预示患者术后临床症状的改善情况,可作为评估减压效果的指标。 展开更多
关键词 皮节体感诱发电位 腰骶神经根 减压 手术 评价
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不同介入方法治疗腰椎间盘突出症疗效比较 被引量:5
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作者 王多 肖德明 +1 位作者 杨大志 镇万新 《脊柱外科杂志》 2004年第3期138-141,共4页
目的 采用不同的介入方法治疗腰椎间盘突出症,观察研究各种方法的治疗效果及特点。方法 将93例符合微创介入治疗适应征的腰椎间盘突出症患者,分别采用胶原酶髓核溶解术和经皮钕激光椎间盘汽化术介入治疗,在治疗前和治疗后1周、1个月、6... 目的 采用不同的介入方法治疗腰椎间盘突出症,观察研究各种方法的治疗效果及特点。方法 将93例符合微创介入治疗适应征的腰椎间盘突出症患者,分别采用胶原酶髓核溶解术和经皮钕激光椎间盘汽化术介入治疗,在治疗前和治疗后1周、1个月、6个月、1年五个时段,对所有病例进行皮节体感诱发电位(DSEP)检测。同时根据患者症状、体征恢复程度的评定标准,以优良率作为疗效指标,分别以术后1个月、1年作为早期和远期疗效评定。对所有病例的随访资料,通过统计学分析比较,研究两种治疗方法的疗效及特点。结果 经皮钕激光椎间盘汽化术与胶原酶髓核溶解术两种方法,对解除神经受压、恢复神经功能的早期疗效,无显著性差异,术后1个月两者的优良率分别为7l%和66%;术后1年经皮钕激光椎间盘汽化术治疗的优良率为85%,显著高于胶原酶髓核溶解术(66%)。经过两种治疗方法后,神经电生理指标改善,潜伏期缩短,波幅延长,显示神经功能有所恢复。结论经皮钕激光椎间盘汽化术与胶原酶髓核溶解术,两种方法疗效确实、可靠。与胶原酶髓核溶解术相比,经皮钕激光椎间盘汽化术技术具有显效快、远期疗效好的特点。 展开更多
关键词 介入治疗 腰椎间盘突出症 胶原酶髓核溶解术 经皮钕激光椎间盘汽化术
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皮节体感诱发电位在诊断腰骶神经根损害中的临床研究 被引量:5
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作者 沈宁江 王广积 +2 位作者 王先安 陈建 吴晓丽 《临床神经电生理学杂志》 2008年第6期334-339,共6页
目的:探讨皮节体感诱发电位(DSEP)在诊断腰骶神经根受损及其严重程度中的临床应用价值。方法:将47例具有长期腰痛,伴有双侧下肢放射痛及间歇性跛行症状,经CT或MRI确诊有腰椎管狭窄(LSS)需要入院进行手术治疗的病例设为病例组。对照组为5... 目的:探讨皮节体感诱发电位(DSEP)在诊断腰骶神经根受损及其严重程度中的临床应用价值。方法:将47例具有长期腰痛,伴有双侧下肢放射痛及间歇性跛行症状,经CT或MRI确诊有腰椎管狭窄(LSS)需要入院进行手术治疗的病例设为病例组。对照组为50例无腰腿痛和无中枢神经系统疾病的健康成年人。分别对两组进行双侧L4、L5、S1神经根DSEP检测。DSEP的异常诊断标准:P40波(即P1波)消失,和(或)P40波潜伏期延长超过正常均数+2.5倍标准差(>+2.5s)。结果:病例组中,P40波潜伏期明显延长91个皮节,P40波形消失103个皮节。分别将左右两侧三个皮节(L4、L5、S1)的P40潜伏期与正常对照组相对应皮节的P40潜伏期进行统计学分析,差异有显著意义(P<0.01)。DSEP诊断LSS神经根其灵敏度和符合率均为95.7%。结论:DSEP能反映LSS时神经根受损及其严重程度,与CT或MRI能互为补充,作为需要进行手术的证据,具有重要的临床应用价值。 展开更多
关键词 皮节体感诱发电位(dsep) 腰椎管狭窄症(LSS) 神经根损害 诊断
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腰椎术中高频电刀对皮节体感诱发电位的影响 被引量:1
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作者 高维涛 李放 章建平 《癫痫与神经电生理学杂志》 2012年第4期227-229,共3页
目的:通过观察腰椎术中L5神经根减压后高频电刀使用后不同时间短潜伏期皮节体感诱发电位(DSEP)P40波潜伏期和波幅的变化,探讨高频电刀对皮节体感诱发电位(DSEP)的影响。方法:对36例单侧L5神经根压迫接受开窗手术患者,在术中进... 目的:通过观察腰椎术中L5神经根减压后高频电刀使用后不同时间短潜伏期皮节体感诱发电位(DSEP)P40波潜伏期和波幅的变化,探讨高频电刀对皮节体感诱发电位(DSEP)的影响。方法:对36例单侧L5神经根压迫接受开窗手术患者,在术中进行受累神经根DSEP监测,观察并记录减压后使用高频电刀不同时间节点(使用前,电刀停止即刻、停止后5min及10min)的P40波潜伏期、波幅的数据,通过对照评价术中高频电刀对DSEP监测的影响。结果:与减压后(使用电刀前)相比,电刀停止后即时P40波潜伏期明显延长、波幅明显下降(P<0.05);停止后5min时P40波潜伏期、波幅无明显恢复(P<0.05);10min时,潜伏期和波幅变化无显著差异(P>0.05)。结论:在术中高频电刀的使用将影响DSEP的监测结果,应在电刀停止10min后记录波形才准确。 展开更多
关键词 腰椎 手术 高频电刀 皮节体感诱发电位(dsep) 影响
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腰骶神经根减压术中皮节体感诱发电位监测及其相关因素分析
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作者 高维涛 李放 章建萍 《癫痫与神经电生理学杂志》 2012年第6期325-328,340,共5页
目的:探讨腰骶神经根减压手术中皮节体感诱发电位(DSEP)监测的临床意义。方法:对46例经查体、腰椎MRI及DSEP检查证实存在单侧腰骶神经根(腰5或骶1神经根)压迫的患者,术前按照40岁为节点进行年龄分层(大龄组和低龄组)、病程分层... 目的:探讨腰骶神经根减压手术中皮节体感诱发电位(DSEP)监测的临床意义。方法:对46例经查体、腰椎MRI及DSEP检查证实存在单侧腰骶神经根(腰5或骶1神经根)压迫的患者,术前按照40岁为节点进行年龄分层(大龄组和低龄组)、病程分层以3个月为节点(慢程组和短程组)、失血量分层以200ml作为节点(大量失血组和少量失血组);在术中进行受累节段双侧神经根DSEP监测,观察并记录不同时间节点(麻醉后、减压前及减压后)的P40波潜伏期、波幅的数据,计算减压前后P40波幅的改善率,分别以0.5、0为节点将其分层(明显改善组、不明显改善组和无改善组),比较上述不同因素分层后的相关指标。结果:大龄组疼痛视觉模拟评分(VAS)与Oswestry功能障碍(ODD改善率之间,低龄组P40波幅改善率与ODI改善率、VAS与ODI改善率之间,P40波幅变化率、VAS改善率在不同病程组,病程、VAS改善率在不同P40波幅改善率组差异有显著意义(P〈0.05)。结论:在应用DSEP分析腰骶神经根减压效果时,在不同患者相关因素下的P40波幅改善率具有重要的临床价值和意义。 展开更多
关键词 皮节体感诱发电位(dsep) 腰骶神经根减压 相关因素 年龄 病程 失血量
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皮节体感诱发电位各观测指标在评价腰骶神经根病损中的灵敏性
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作者 陈建 沈宁江 吴晓丽 《临床神经电生理学杂志》 2008年第4期215-217,共3页
目的:探讨皮节体感诱发电位(DSEP)各指标在评估腰椎间盘突出症(LDH)的神经根损害中的作用及灵敏性。方法:测定96例有单侧下肢放射痛症状的LDH患者和50例正常人的DSEP并进行比较。结果:DSEP诊断LDH神经根病损的阳性率为84%,DSEP异常主要... 目的:探讨皮节体感诱发电位(DSEP)各指标在评估腰椎间盘突出症(LDH)的神经根损害中的作用及灵敏性。方法:测定96例有单侧下肢放射痛症状的LDH患者和50例正常人的DSEP并进行比较。结果:DSEP诊断LDH神经根病损的阳性率为84%,DSEP异常主要表现为P40波潜伏期侧间差异常(65%),DSEP波幅变异大,波幅变异系数平均高达58%。结论:DSEP能反映腰骶神经根功能状态,可用来评价LDH的神经根病损,其灵敏度高,与CT或MRI能互为补充;在有单侧下肢症状的LDH病例以P40波潜伏期的侧间差为最敏感的指标;波幅变异大,难以作为有肯定意义的指标。 展开更多
关键词 腰椎间盘突出症(LDH) 皮节体感诱发电位(dsep) 诊断
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MRI与体感诱发电位在腰椎间盘突出症诊断中的对比分析 被引量:3
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作者 刘立源 李鹤平 +3 位作者 张冰 杨建勇 刘锦召 马震 《当代医学》 2011年第14期81-83,共3页
目的探讨磁共振成像(MRI)与皮节体感诱发电位(DSEP)分别及联合应用诊断腰椎间盘突出症的价值,并比较各自的优缺点。方法分析65例经手术确诊的腰椎间盘突出症患者术前MRI和DSEP的检查结果,并进行比较。结果 术前MRI检测的阳性率达96.9%(... 目的探讨磁共振成像(MRI)与皮节体感诱发电位(DSEP)分别及联合应用诊断腰椎间盘突出症的价值,并比较各自的优缺点。方法分析65例经手术确诊的腰椎间盘突出症患者术前MRI和DSEP的检查结果,并进行比较。结果 术前MRI检测的阳性率达96.9%(63/65),DSEP检测的阳性率达90.8%(59/65),两者合用检测的阳性率达100%(65/65);MRI诊断正确而DSEP漏诊者6例,DSEP诊断正确而MRI漏诊者2例。结论 MRI与DSEP检查各有独特之处,前者既可判断神经根功能又可初步定位,但阳性率略低于MRI,后者能直接显示椎问盘的形态改变和精确定位,但对于部分椎间盘突出类型如椎间孔型容易漏诊,两者应相互补充,为腰椎间盘突出症的诊断和治疗提供更全面的信息。 展开更多
关键词 腰椎间盘突出症 磁共振成像 体感诱发电位
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