• 제목/요약/키워드: Motor nerve conduction velocity

검색결과 43건 처리시간 0.02초

중년여성에서 근막이완요법이 신경전도와 통증에 미치는 영향 (Effects of Myofascial Release on Nerve Conduction Studies and Pain Scale in Middle-Aged Women)

  • 연정민;이현경;이옥경
    • 디지털융복합연구
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    • 제12권6호
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    • pp.425-432
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    • 2014
  • 본 연구는 근막이완요법의 효과를 보기 위하여 중년여성에서 근막요법 전후의 피로와 신경전도에 미치는 영향을 관찰하였다. 28명의 중년여성을 대상으로 오후 6시 이후에 2일 간격으로 총 3회(1, 3, 5 일) 근막이완요법을 실시하였으며, 근막이완요법 전 후의 통증 정도 변화를 설문 조사하였으며, 통각계를 이용하여 승모근에서 압력통각역치와 시각적 통증강도를 측정하였다. 정중신경에서 운동신경전도와 감각신경전도 검사를 실시하여 잠복기, 진폭, 신경전도속도를 측정하였다. 설문조사결과 피로를 많이 느끼는 시간은 18~21시였으며, 피로와 통증을 가장 많이 느끼는 부위는 어깨부위로 조사되었다. 근막이완요법 후에 통증의 정도, 압력통각역치, 시각적 통증강도는 근막이완요법전보다 유의적으로 감소하였다. 근막이완요법전보다 근막이완요법이후 운동신경의 잠복기는 유의적으로 감소되었고 진폭은 유의적으로 증가하였으며 감각신경의 잠복기는 유의적으로 감소되었다. 이와 같은 결과 근막이완요법은 중년여성에서 통증 개선을 위한 대체요법으로 사용될 수 있을 것으로 사료된다.

손목터널증후군 진단 시 F파의 유용성에 관한 연구 (Study on the Validity of F wave for Diagnosis of Carpal Tunnel Syndrome)

  • 박종권;강지혁;김혜정
    • 한국산학기술학회논문지
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    • 제18권10호
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    • pp.290-298
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    • 2017
  • 본 연구는 초기 손목터널증후군으로 진단된 환자의 정중신경(median nerve)과 자신경(ulnar never)의 및 F파를 대조군과 비교 분석하여 초기 손목터널증후군의 진단에서 F파가 유용한 지표가 될 수 있는지 알아보고자 하였다. 신경전도검사 결과의 주요 지표인 말단잠복기, 말단진폭, 손바닥-손목 구간의 감각신경전도속도 및 F파 잠복기를 대조군과 t-test 검정으로 비교분석하고, 또한 주요 지표간의 상관성 분석을 위하여 상관분석을 실시하였다. 연구결과, 대조군과 초기 손목터널증후군 환자의 정중신경 말단잠복기 비교에서 두 군 간에 유의성이 높은 것으로 나타났다(p<0.001). 정중신경의 감각신경전도속도 비교에서는 대조군과 손목터널증후군 간의 유의성이 높은 것으로 관찰되었다(p<0.001). 후기반응검사인 F파 잠복기 분석에서 정중신경의 경우 대조군과 손목터널증후군간 높은 유의성(p<0.001)을 보였으나, 자신경의 경우는 차이가 없는 것으로 나타났다. 상관분석 결과는 감각신경전도속도와 말단잠복기, F파와 말단잠복기에서 모두 상관성이 있는 것으로 나타났다. 이러한 결과로, F파는 말단잠복기, 감각신경전도속도와 같이 손목터널증후군의 진단에 있어 유용한 지표가 될 수 있다고 사료된다.

죽력(竹瀝)과 천축황(天竺黃)이 Streptozotocin으로 당뇨가 유발된 백서의 혈당강하 및 말초신경기능회복에 미치는 영향 (The Effects of Bambusae caulis in liquamen and Bambusae concretio silicae on Blood Sugar Reduction and Improvement of Peripheral Nerve Function in Diabetic Rats Induced with Streptozotocin)

  • 박수곤;배길준;이욱재;김선종;정민영
    • 한방재활의학과학회지
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    • 제24권1호
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    • pp.13-30
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    • 2014
  • Objectives This study was designed to investigate the effects of Bambusae caulis in liquamen and Bambusae concretio silicae on blood sugar reduction and improvement of peripheral nerve function in diabetic rat models. Methods Diabetic rat models induced by streptozotocin were divided into five groups. We fed experimental group I of rats basal diet and administered normal saline (3 ml, 1 time/1 day) for 6 weeks. We fed experimental group II of rats basal diet and administered Bambusae caulis in liquamen (100 mg/kg, 1 time/1 day) for 6 weeks. We fed experimental group III, IV, V of rats basal diet and administered Bambusae concretio silicae (100 mg/kg, 200 mg/kg, 400 mg/kg once a day) for 6 weeks. We investigated weight and glucose level of rats, and carried out touch test, hot plate test, sensory & motor nerve conduction velocity test and immunohistochemical study after 48 hours, 2 weeks, 4 weeks and 6 weeks. Results 1. The weight of all experimental group was gradually decreased. And glucose level was significantly decreased in the experimental group II, III, IV, V as compared with experimental group I. Especially experimental group II, IV, V were significantly decreased as compared with experimental group III. 2. In the quantitative analysis by touch test and hot plate test, mechanical pain threshold and heat pain threshold were significantly decreased in the other experimental groups as compared with experimental group I. Especially experimental group II, IV, V were significantly decreased as compared with experimental group III. 3. In the sensory and motor nerve conduction velocity test, sensory and motor nerve conduction velocity were significantly increased in the other experimental groups as compared with experimental group I. Especially experimental group II, IV, V were significantly increased as compared with experimental group III. 4. In the substance P immunohistochemical study, experimental group II, IV, V showed strong immune response in spinal cord. Conclusions Bambusae caulis in liquamen and Bambusae concretio silicae were probably useful to treat patients with diabetic peripheral neuropathy.

수근관증후군에서 수근관절굴곡이 신경전도속도에 미치는 영향 (Study on the Change of Nerve Conduction with Wrist Flexion in Carpal Tunnel Syndrome)

  • 이세진;어경윤;박미영;하정상;변영주;박충서
    • Journal of Yeungnam Medical Science
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    • 제8권1호
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    • pp.79-85
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    • 1991
  • 정상대조군 20 hands와 수근관증후군환자 40 hands를 대상으로 각 1분, 2분, 5분간 수근관절굴곡 후의 신경전도속도의 변화를 측정하여 수근관증후군의 진단에 도움을 줄 수 있는지를 알아보고자 운동신경은 belly-tendon방법을, 감각신경은 역방향전도검사법을 각각 이용하여 wrist to finger segment에서 수근관절굴곡 전후의 정중신경의 SNCV와 MNDL을 측정하여 아래와 같은 결과를 얻었다. 대조군에서 수근관절굴곡 후의 신경전도속도의 변화가 있었던 경우는 감각신경에서 2 hands, 운동신경에 1 hands였으며 환자군에서는 감각신경에서 3 hands, 운동신경에서 2 hands였다. 그리고 1분, 2분 및 5분간 수근관절굴곡 후의 SNCV와 MNDL의 평균과 표준편차를 구해본 결과 대조군과 환자군에서 모두 유의한 변화가 없었다. Phlaen's wrist flexion검사에서 대조군은 5%에서 양성이었으며 환자군에서는 60%에서 양성이었다. Tinel징후는 대조군에서는 10%에서 양성이었으며 환자군에서는 33%에서 양성이었다.

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Miller Fisher 증후군1예에서 일련의 신경생리학적 소견 (Serial Electrophysiological Studies in Miller Fisher Syndrome)

  • 전동철;박춘강;이규용;이영주;김주한
    • Annals of Clinical Neurophysiology
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    • 제3권2호
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    • pp.156-159
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    • 2001
  • Miller Fisher syndrome(MFS) has been the focus of conflicting opinions regarding the peripheral versus the central nature of the site of major neural injury. We present our electrophysiological findings in one case of MFS to help clarify the pattern of peripheral nerve injury in this syndrome. A 45-year-old man visited our hospital due to sudden diplopia. Initial examination revealed internuclear opthalmoplegia. The next day, his symptoms rapidly aggravated to complete external ophthalmoplegia, ataxia, and areflexia with hand and foot numbness. Serial electrophysiological studies were performed. The results of brainstem evoked potential(BAEP) and blink reflex were normal in the serial studies. Motor and sensory nerve conduction study(NCS) were normal findings in second hospital day, but ulnar sensory nerve shows no sensory nerve action potential(SNAP) and sural sensory conduction velocity was delayed in 7th hospital day. Our patient's clinical presentation began to improve on 15th hospital day, and his electrophysiologic study showed improvement on 29th hospital day. We believe that all the manifestations of MFS can be explained by the involvement of peripheral nerves without brainstem or cerebellar lesion with the serial electrophysiological studies.

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Subclinical Neuropathy at 'Safe' Levels of Lead Exposure

  • Seppalanen Anna Maria;Tola Sakari;Hernberg Sven;Kock Boria
    • 대한예방의학회:학술대회논문집
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    • 대한예방의학회 1994년도 교수 연수회(환경)
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    • pp.545-548
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    • 1994
  • Eletrophysiological methods revealed subclinical neuropathy in 26 workers, exposed from 1 to 17 years to lead and whose blood lead (PbB) values had never exceeded $70{\mu}g/100\;ml$, as ascertained by checking the monitor reports of the factory and by careful exposure history. The PbB determinations had been tested repostedly and had been found valid. The main findings were slowing of the maximal motor conduction velocities of the median and ulnar nerves and particularly the conduction velocity of the slower fibers of the ulnar nerve. Eletrophysiological abnormalities comprised fibriliations, diminution of the number of motor units on maximal contraction, and an abnormal. Thus, a dose-response relationship exlets on a group basis. Since the regular monitoring of PbBs in most workers during their entire period of exposure excludes the possibility of a body burden out of proportion to the PbBs silght neuro-logical damage is produced at exposures hitherto regarded as quite sale.

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Axonal Charcot-Marie-Tooth case with a novel heterozygous variant in MFN2 assessed by the MutationDistiller

  • Ryu, Ho-Sung;Lee, Yun-Jeong;Lee, Jong-Mok
    • Journal of Genetic Medicine
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    • 제17권2호
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    • pp.89-91
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    • 2020
  • Charcot-Marie-Tooth (CMT) disease can be divided mainly into demyelination and axonopathy based on the results of the electrophysiological study. Mitofusin 2, encoded by MFN2 gene, has a crucial role in the fusion of mitochondria, which is known to associate with CMT type 2A as one of the axonal forms. We describe a 44-year-old man with progressive weakness on bilateral legs after noticing foot drop in his early teen. When we examined him at 45 years of age, he presented atrophy on entire legs and with distal muscle weakness on limbs. The nerve conduction study revealed severely decreased amplitude on motor nerve ranging from 0.2 to 4.5 mV, while conduction velocity remained more than 30.4 m/s. The whole-exome sequencing revealed a novel variant c.2228G>T in MFN2 by efficient genetic analysis tool, MutationDistiller. This report will not only expand the mutation spectrum of CMT2A but also introduce a time-saving genetic analysis tool.

정상성인의 신경전도속도에 관한 연구 (A Study of Nerve Conduction Velocity of Normal Adults)

  • 최경찬;허종상;변영주;박충서;양창헌
    • Journal of Yeungnam Medical Science
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    • 제6권1호
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    • pp.151-163
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    • 1989
  • 건강한 성인 83명을 무작위로 선정하여 실시한 신경전도속도 검사에서 다음과 같은 결과를 얻었다. 1) 상지의 정중신경에서는 운동신경의 TL이 3.0-4.2msec 이고, MNCV는 각각 52.1-70.3m/sec(W-E), 44.6-71.0m/sec(E-Ax), 56.6-70.8m/sec(W-E), 50.5-75.1m/sec(E-Ax)이며, CNAP의 진폭은 $6.5-46.1{\mu}V$였다. 2) 척골신경에서는 운동신경의 TL이 2.4-3.4msec이고, MNCV는 각각 54.6-72.8m/sec(W-E), 41.1-64.9m/sec(E-Ax)이며, 진폭은 3.1-12.0mV였다. 척골신경의 MNCV는 각각 31.1-44.7m/sec(F-W)m, 55.9-70.9m/sec(W-E), 46.9-67.1m/sec(E-Ax)이며, CNAP의 진폭은 4.8-42.9${\mu}V$범위였다. 3) 요골신경에서는 운동신경의 TL이 1.9-2.7msec이고, MNCV는 53.1-77.5m/sec(W-E)이며, CMAP의 진폭은 1.1-6.6mV범위였다. 요골신경의 SNCV는 각각 38.5-52.1m/sec(F-V), 53.2-75.2m/sec(W-E) 이며, CNAP의 진폭은 $2.5-9.2{\mu}V$범위였다. 4) 하지의 비골신경에서는 운동신경의 TL이 3.5-5.7msec이며, MNCV는 각각 44.4-58.6m/sec(A-FH), 42.8-65.8m/sec(FH-PF)이며, CMAP의 진폭은 0.6-12.7mV 범위였다. 5) 후경골신경에서는 TL이 4.0-6.2m/sec이며, MNCV는 40.6-60.6m/sec이며, CMAP의 진폭은 3.9-29.2mV범위였다. 6) 비골신경의 SNCV는 37.5-49.5m/sec이며, CNAP의 진폭은 $0.7-17.1{\mu}V$범위였다. 7) H-반사의 평균 잠복기는 28.4msec였다.

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수근관증후군 수술 전후 임상증상과 전기생리학적 검사소견의 변화: 25손을 대상으로 한 예비연구 (Clinical and Electrophysiological Changes after Open Carpal Tunnel Release: Preliminary Study of 25 Hands)

  • 양지원;성영희;박기형;이영배;신동진;박현미
    • Annals of Clinical Neurophysiology
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    • 제16권1호
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    • pp.21-26
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    • 2014
  • Background: Electrophysiological study has been known as a useful method to evaluate the therapeutic effect of operation in idiopathic carpal tunnel syndrome (CTS). The purpose of this study was to evaluate the clinical and electrophysiological changes after carpal tunnel release (CTR) compared to the preoperative results. Methods: We analyzed the changes of nerve conduction study (NCS) before and after minimal open carpal tunnel release in 18 patients (25 hands) with CTS. Follow-up study was performed over 6 months after operation. Results: Clinical improvement was seen in all cases after CTR. In contrast, electrophysiological improvement was various depending on the parameters; the mean median sensory latency and nerve conduction velocity (NCV) improved significantly (p = 0.001). The mean median motor latency also improved, but NCV and compound muscle action potential (CMAP) amplitude did not change. The extent of improvement was evident in moderate CTS, but not in severe CTS. Conclusions: In this preliminary study, all subjects who underwent CTR achieved a clinical relief along with a significant improvement of electrophysiological parameters such as median sensory latency, sensory NCV and median distal motor latency. After CTR, a number of cases with mild to moderate CTS showed a prominent improvement of clinical and electrophysiological parameters, while fewer improvements were seen in severe CTS, although it did not reach the statistical significance.

X-linked Charcot-Marie-Tooth disease case with a novel missense mutation in GJB1 gene

  • Lee, Jong-Mok;Shin, Jin-Hong
    • Journal of Genetic Medicine
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    • 제15권2호
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    • pp.107-109
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    • 2018
  • X-linked Charcot-Marie-Tooth disease type 1 (CMTX1) is caused by the mutation in GJB1 gene, characterized by the transient central nervous system involvement and long standing peripheral polyneuropathy which does not fulfill the criteria of demyelination or axonopathy. We describe a 37-year-old man with progressive bilateral leg weakness since his early teen. He suffered transient right hemiparesis, followed by quadriparesis at 14 years of age. When we examined him at 37 years of age, he presented a distal muscle weakness on lower extremities with a sensory symptom. The nerve conduction study demonstrated a motor conduction velocity between 26 and 49 m/s. The whole exome sequencing revealed a novel variant c.136 G>A in GJB1. This report will raise awareness in this rare disease, which is frequently misdiagnosed early in its course.