• Title/Summary/Keyword: Motor Nerve

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Comparison and Evaluation of Autonomic Nervous System (ANS) Activity According to the Stimulus Position of Transcutaneous Electrical Nerve Stimulation (TENS) (경피적 전기 신경 자극의 적용 부위에 따른 자율신경계 활성도 변화 비교 및 평가)

  • Park, Seung Won;Choi, Jun Won;Jeong, Myeon Gyu;Lee, Kang In;Kim, Han Sung
    • Journal of Biomedical Engineering Research
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    • v.42 no.3
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    • pp.107-115
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    • 2021
  • Purpose: The aim of this study is to find the location of acupoints that are effective for increasing parasympathetic nervous system(PNS) activity among acupoints used to relieve symptoms such as dizziness and nausea. Materials and Methods: Twenty healthy adult men participated in this experiment. Transcutaneous electrical nerve stimulation(TENS) was applied to P6(Neiguan), ST36(Zusanli) and BL20(Pishu) for 30 minutes. For 5 minutes before and after stimulation, Electrocardiogram(ECG), Electrodermal activity(EDA), Respiration, and Skin temperature(SKT) were measured using biosignalsplux Professional(biosignalsplux; Portugal). Paired t-test was performed for the results before and after stimulation, and a one-way ANOVA test between stimulations was performed for the rate of change before and after stimulation. Results: When each acupoint was stimulated with TENS, it was found that the PNS was generally activated. In addition, when considering the change in biosignals after stimulation, the participants stimulated with P6 showed the most consistent results. Conclusion: As a result of stimulating each acupoint, it was found that stimulating P6 can effectively increase PNS activity. These results indicate that methods of stimulating P6 may be most effective in alleviating symptoms of motion sickness.

The Effect of Exercise Adaptive Training on Motor Function after Experimental brain ischemia in Rats (실험적 뇌허혈로 인한 편마비 흰쥐에서 운동 적응 훈련이 기능 회복에 미치는 영향)

  • Kwon, Young-Shil;Kim, Jin-Sang
    • The Journal of Korean Physical Therapy
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    • v.13 no.3
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    • pp.529-535
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    • 2001
  • The purpose of this study was to test that the exercise adaptive training enhance behavioral outcome significantly after focal brain ischemia in rats. After occlusion of middle cerebral artery in rats, they were housed in individual standard cages fur 24 hours. The control group was sacrificed 24 hours after ischemic event. The experimental group I was housed in standard cages for 7days. The experimental group ll was housed in enriched environment and had got exercise adaptive training fur 7days. The rats were examined five motor behavioral tests. In motor behavioral tests :postural reflex test, limb placement test, beam-walking test, rotarod test, horizontal wire test. The outcomes of control group and group I were significantly lower than the group II. The conclusion was that exercise adaptive training induced functional repair.

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A Case of Lewis-Sumner Syndrome Improved by Oral Steroid Therapy (경구 스테로이드 치료로 호전된 Lewis-Sumner 증후군 1예)

  • Kim, Jong Kuk;Kim, Min-Jeong;Yoo, Bong-Goo;Kim, Kwang-Soo;Lim, Kwon Il
    • Annals of Clinical Neurophysiology
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    • v.8 no.1
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    • pp.102-105
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    • 2006
  • We present a case with stepwise weakness and sensory involvement of both hands for more than 2 months. His nerve conduction study findings revealed prolonged terminal latencies, decreased motor and sensory conduction velocities and conduction blocks of both ulnar nerves, more severely on left side. And there were other abnormalities manifested with mononeuropathy multiplex. Increased cerebrospinal fluid protein was found. We diagnosed him as Lewis-Sumner syndrome and tried high dose oral steroid therapy for 2 months. He showed improvement of motor functioning with persistent conduction block.

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Intraoperative Neurophysiological Monitoring for Optimal Brain Mapping

  • Park, Sang-Nam;Park, Sang-Ku
    • Korean Journal of Clinical Laboratory Science
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    • v.45 no.4
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    • pp.170-179
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    • 2013
  • There is a correct way to avoid any sequale in the central motor area during neurosurgery procedures. A clear way to find the circumference of the central sulcus, central motor, and sensory areas by giving cortical electrical stimulation to the central motor area immediate after surgery is proposed. Looking at patients who underwent brain surgery September 2009 to July 2013, the central sulcus and speech areas around the central area of the brain was investigated, using the practices of either a localized brain map check or a direct cortical electrical stimulation test. Brain maps localized around the surgical site through functional movement or speech areas were identified. Accurate tests done during surgery without damage to motor neurons or after surgery were conducted smoothly. Although successful brain map test localization can be accomplished, there are some factors that can interfere. The following phenomena can reverse the phase: (1) the first sensory / motor in the case of patients severe nerve damage; (2) placement of the electrode on top of the vessel; (3) presence of a brain tumor near the brain cortex; (4) use of anesthesia if patient cooperation is difficult; and (5) location of the electrode position and stimulus is inappropriate.

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Motor and Somato Sensory Evoked Potentials During Intraoperative Surveillance Testing in Patients with Diabetes

  • Lee, Kyuhyun;Kim, Jaekyung
    • International journal of advanced smart convergence
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    • v.9 no.1
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    • pp.37-46
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    • 2020
  • Cerebral vascular surgery can damage patients' motor and sensory nerves; therefore, neuromonitoring is performed intraoperatively. Patients with diabetes often have peripheral neuropathy and may be prone to nerve damage during surgery. This study aimed to identify factors that should be considered when diabetic patients undergo intraoperative neuromonitoring during brain vascular surgery and to present new criteria. Methods: In patients with and without diabetes who underwent cerebrovascular surgery (n = 30/group), we compared the intraoperative stimulation intensity, postoperative motor power and sensory, glycated hemoglobin (HbA1c) and glucose levels, and imaging findings. Results: Fasting glucose, blood glucose, and HbA1c levels were 10%, 12.1%, and 9.7%, respectively; they were higher in patients with than in patients without diabetes. Two patients with diabetes had weakness, and 10 required increased Somato sensory evoked potential (SSEP) stimulation, while in 16, motor power recovered over time rather than immediately. The non-diabetic group had no weakness after surgery, but 10 patients required more increased SSEP stimulation. The diabetic group showed significantly more abnormal test results than the non-diabetic group. Conclusion: For patients with diabetes undergoing surgery with intraoperative neuromonitoring, whether diabetic peripheral neuropathy is present, their blood glucose level and the anesthetic used should be considered.

Zoster Paresis Misconceived as a Radiculopathy due to Herniated Intervertebral Disc (추간판 탈출증에 의한 신경근병증으로 오인된 대상포진성 부전마비)

  • Kim, Hyun Jee;Yeo, Jin Seok;Jeon, Young Hun;Choi, Jy Young;Ha, Mi Jin;Hong, Jung Gil
    • The Korean Journal of Pain
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    • v.22 no.2
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    • pp.181-185
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    • 2009
  • Herpes zoster is a viral disease of the posterior root ganglion and sensory nerve fiber, which presents clinically with vesicular eruption of the skin, radicular pain and sensory changes in the distribution of the affected ganglion. However, involvement of the motor neurons can be seen as well. If classic cutaneous lesions are present, herpes zoster-related motor paresis is easily diagnosed. Otherwise, the diagnosis may be more difficult and suspicious, especially if weakness occurs as a symptom before cutaneous lesions appear, or abnormal findings on the MRI are consistent with the signs. There have been few reports of sciatica with motor loss preceding skin lesions. Here, we report a patient with herpes zoster-related motor paresis preceding skin lesions. In the preliminary diagnosis, the herpes zoster-related motor paresis was confused for some structural disorder.

Effects of Root of Cibotii Rhizoma on Neuronal Damage of Spinal Cord Contusion Injury in Rats (구척(狗脊)이 흰쥐의 척수압박에 의한 신경세포 손상에 미치는 영향)

  • Park, Won-Sang;Kim, Eun-Seok;Shin, Jung-Won;Kim, Bum-Hoi;Kim, Seong-Joon;Kang, Hee;Sohn, Nak-Won
    • Journal of Korean Medicine Rehabilitation
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    • v.20 no.2
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    • pp.1-15
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    • 2010
  • Objectives : This study was performed to evaluate the effects of root of Cibotii rhizoma(CR) ethanol extract on the tissue and neuronal damage of the spinal cord injury(SCI). Methods : SCI was induced by mechanical contusion following laminectomy of 10th thoracic vertebra in Sprague-Dawley rats. CR was orally given once a day for 7 days after SCI. Tissue damage and nerve fiber degeneration were examined with cresyl violet and luxol fast blue(LFS) histochemistry. HSP72(as neuronal damage marker), MAP2(as nerve fiber degeneration marker), c-Fos(immediate early gene), and Bax(pro-apoptotic molecule) expressions were examined using immuno-histochemistry. Individual immuno-positive cells expressing HSP72, MAP2, c-Fos and Bax were observed on the damaged level and the upper thoracic and lower lumbar spinal segments. Results : 1. CR reduced degeneration of nerve fibers and motor neuron shrinkage in the ventral horn of the lower lumbar spinal segment, but generally it did not seem to ameliorate the tissue injury following SCI. 2. CR reduced demyelination in the ventral and lateral funiculus of the lower lumbar spinal segment. 3. CR reduced HSP72 expression on the neurons in the peri-central canal gray matter adjacent to the damaged region. 4. CR strengthened MAP2 expression on the motor neurons in the ventral horn and on nerve fibers in the lateral funiculus of the lower lumbar spinal segment. 5. CR reduced c-Fos positive cells in the peri-lesion and the dorsal horn of the damaged level and in the ventral horn of the lower lumbar spinal segment. 6. CR reduced Bax positive cells in the peri-lesion and the dorsal horn of the damaged level and in the ventral horn of the lower lumbar spinal segment. Conclusions : These results suggest that CR plays an inhibitory role against secondary neuronal damage and nerve fiber degeneration. following SCI.

Quantitative vibratory sense measurement systems of a diabetic neuropathy (당뇨병성 신경병증의 정량적 진동 감각 측정 시스템)

  • Ryu, Bong-Jo;Kim, Youngshik;Koo, Kyung-Wan
    • Journal of Digital Contents Society
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    • v.19 no.4
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    • pp.615-620
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    • 2018
  • Evaluation of clinical usefulness of current perception threshold test and vibration sense perception threshold test in diagnosing the diabetic poly-neuropathy patients is one of the diagnosis methods for diabetic poly-neuropathy. Up to the present, some diagnostic methods were used for diabetic poly neuropathy patients. For example, there are neuropathy impairment score test of lower limbs, nerve conduction test, cooling detection threshold test, heat-pain threshold test and so on. However, most of the above tests require very expensive cost and take a lot of time in test. In this paper, a new apparatus estimating vibration sense ability is introduced. For this purpose, the VCM(voice coil motor) stimulating patient's peripheral nerve and current amplifier were manufactured. Also, softwares sensing and driving the vibration detection threshold test in order to measure the quantitative vibration sensory levels in diabetic poly-neuropathy patients were developed.

Clinical Features and Electrophysiological Findings of Acute Brachial Plexitis (급성상완신경총염의 임상 소견과 전기생리학적 소견)

  • Jo, Hee Young;Kim, Dae-Seong
    • Annals of Clinical Neurophysiology
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    • v.10 no.1
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    • pp.43-47
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    • 2008
  • Background: Acute brachial plexitis is an acute idiopathic inflammatory disease affecting brachial plexus, which is characterized by initial severe pain in shoulder followed by profound weakness of affected arm. This is a retrospective study to evaluate the clinical and electrophysiological profile of acute brachial plexitis. Methods: Sixteen patients with acute brachial plexitis were sampled. The electrodiagnostic studies included motor and sensory nerve conduction studies (NCSs) of the median and ulnar, sensory NCSs of medial and lateral antebrachial cutaneous nerves, and needle electromyography (EMG) of selected muscles of upper extremities and cervical paraspinal muscles. The studies were performed on both sides irrespective of the clinical involvement. Results: In most of our patient, upper trunk was predominantly affected (14 patients, 87.50%). Only two patients showed either predominant lower trunk affection or diffuse affection of brachial plexus. All had an acute pain followed by the development of muscle weakness of shoulder girdle after a variable interval ($7{\pm}8.95$ days). Ten patients (62.50%) had severe disability. In NCSs, the most frequent abnormality was abnormal lateral antebrachial cutaneous sensory nerve action potentials (SNAPs). On needle EMG, all the patients showed abnormal EMG findings in affected muscles. Conclusions: In this study, pain was the presenting feature in all patients, and the territory innervated by upper trunk of the brachial plexus was most frequently involved. The most common NCS abnormality was abnormal SNAP in lateral antebrachial cutaneous nerve. Our findings support that the electrodiagnostic test is useful in localizing the trunk involvement in acute brachial plexitis.

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A Clinical Case of Oriental Medical Treatment for the Paraplegia after Lumbar Epidural Nerve Block (요추 경막외 차단술 후 발생한 하지마비의 한의학적인 치료 효과 - 증례 보고 -)

  • Yu, Deok-Seon;Kim, So-Yeon;Kim, Dong-Eun;Jung, Il-Min;Yeom, Seung-Ryong;Kwon, Young-Dal
    • Journal of Korean Medicine Rehabilitation
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    • v.19 no.4
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    • pp.219-228
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    • 2009
  • Objectives : This study was performed to report the effect of oriental medical treatment in the paraplegia and pain after epidural nerve block. Methods : A 39-year-old woman who underwent epidural nerve block at a local clinic was admitted with motor weakness of lower limbs, severe lower radiating pain and decreased sensation when voiding and defecating. We treated her by acupuncture, a herbal medicine, a bee venom injection, moxibustion and cupping treatment and physical theraphy from 11th July 2008 to 14th October 2008. Results : After treatment, most symptoms decreased, VAS(Visual Analog Scale) score changed from 9 to 2. and examinated muscle power changed from 2-3 to 4-5. Conclusions : Our study suggested that oriental medical treatments are significantly effective in the paralplegia and pain after epidural nerve block. And further studies will be aid to identify underlying mechanism of treatment.