Journal of Electrodiagnosis and Neuromuscular Diseases最新文献_第2页

Granular Cell Tumor: An Unusual Cause of Common Peroneal Neuropathy 颗粒细胞瘤:常见腓神经病变的一种罕见病因

Journal of Electrodiagnosis and Neuromuscular Diseases Pub Date : 2023-08-31 DOI: 10.18214/jend.2023.00038

Juwon Lee, J. Park, Seung-min Jeong, J. Noh, G. Kang, S. Baek

引用次数: 0

Bilateral Ischemic Lumbosacral Plexopathy after Proximal Aortic Surgery 近端主动脉手术后双侧缺血性腰骶神经丛病

Journal of Electrodiagnosis and Neuromuscular Diseases Pub Date : 2023-08-31 DOI: 10.18214/jend.2022.00115

Min Gi Kim, Seung Hak Lee

引用次数: 0

The Hmax/Mmax Ratio as a Diagnostic Tool in Assessing Spasticity in a Patient with Hereditary Spastic Paraplegia Hmax/Mmax比值作为评估遗传性痉挛性截瘫患者痉挛的诊断工具

Journal of Electrodiagnosis and Neuromuscular Diseases Pub Date : 2023-08-31 DOI: 10.18214/jend.2022.00213

Tae Yong Kim, K. Kim, Sung-Rae Cho

{"title":"The Hmax/Mmax Ratio as a Diagnostic Tool in Assessing Spasticity in a Patient with Hereditary Spastic Paraplegia","authors":"Tae Yong Kim, K. Kim, Sung-Rae Cho","doi":"10.18214/jend.2022.00213","DOIUrl":"https://doi.org/10.18214/jend.2022.00213","url":null,"abstract":"Hereditary spastic paraplegia (HSP) refers to a group of inherited diseases caused by progressive degeneration of the corticospinal tracts. We report a case of an HSP patient with ankle spasticity treated with an intrathecal baclofen (ITB) pump, for whom the Hmax/Mmax ratio was used as a diagnostic tool for spasticity. A man in his early 30s who was born without any complications and developed normally in childhood was diagnosed with HSP when he was 29 years old. Equinus gait pattern and bilateral genu recurvatum improved after manual therapy and botulinum toxin injections in both gastrocnemius muscles; however, after a few months, his gait disturbance became more severe as a natural course of the disease. To treat ankle spasticity and clonus, he was considered a suitable candidate for an ITB therapy. However, as spasticity is a finding that is easy to recognize but difficult to evaluate, we conducted electrophysiological testing, including H-reflex and the ratio of H-reflex amplitude to compound muscle action potential amplitude. The Hmax/Mmax ratio was 75.2% on the right side and 65.2% on the left side before an ITB pump, and 37.6% on the right side and 47.0% on the left side after an ITB pump. This case illustrates the usefulness of testing electrophysiological parameters such as the Hmax/Mmax ratio to measure spasticity objectively in late-onset HSP patients. The Hmax/Mmax ratio is also a good tool for measuring the degree of improvement in spasticity after ITB or additional treatment in these patients.","PeriodicalId":440658,"journal":{"name":"Journal of Electrodiagnosis and Neuromuscular Diseases","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132578832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Relationship between Chronic Obstructive Pulmonary Disease Severity and Surface Electromyography Parameters during Fatigue Caused by Knee Extensor Contractions 慢性阻塞性肺疾病严重程度与膝伸肌收缩引起疲劳时表面肌电参数的关系

Journal of Electrodiagnosis and Neuromuscular Diseases Pub Date : 2023-08-31 DOI: 10.18214/jend.2023.00024

Ho Jeong Shin, J. Lee, Sang Hun Kim, M. Shin, M. Jang

{"title":"Relationship between Chronic Obstructive Pulmonary Disease Severity and Surface Electromyography Parameters during Fatigue Caused by Knee Extensor Contractions","authors":"Ho Jeong Shin, J. Lee, Sang Hun Kim, M. Shin, M. Jang","doi":"10.18214/jend.2023.00024","DOIUrl":"https://doi.org/10.18214/jend.2023.00024","url":null,"abstract":"Objective: Skeletal muscle dysfunction, which is characterized by decreased muscle strength and endurance, contributes to dyspnea during exercise in patients with chronic obstructive pulmonary disease (COPD), regardless of pulmonary function. This study analyzed skeletal muscle function in patients with COPD through surface electromyography (sEMG) evaluations and signal processing and attempted to determine whether sEMG parameters for muscle fatigue reflect the course of the disease. Methods: In 24 patients with COPD, maximal voluntary isometric contraction and ramp contraction were performed during isometric knee extension, and the sEMG activity of the rectus femoris muscle was measured. The patients were divided into three groups according to their modified Medical Research Council (mMRC) grade and Global Initiative for Chronic Obstructive Lung Disease (GOLD) stage. Patients with mMRC grades 0 and 1 were classified into group A, grade 2 into group B, and grades 3 and 4 into group C. Patients with GOLD stage 1 were classified into group I, stage 2 into group II, and stages 3 and 4 into group III. sEMG parameters were compared between groups using one-way analysis of variance. Results: There were significant differences in the minimum median frequency and fatigue index between the mMRC groups. However, the sEMG parameters did not differ significantly among the GOLD groups. Conclusion: Muscle fatigue differs according to the severity of subjective dyspnea in COPD. sEMG evaluations and signal processing can play supplementary roles in evaluating muscle endurance and predicting functional capacity in COPD.","PeriodicalId":440658,"journal":{"name":"Journal of Electrodiagnosis and Neuromuscular Diseases","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115816238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Paraneoplastic Neurologic Syndrome in Small Cell Lung Carcinoma 小细胞肺癌的副肿瘤神经综合征

Journal of Electrodiagnosis and Neuromuscular Diseases Pub Date : 2023-08-31 DOI: 10.18214/jend.2023.00010

Young-Gon Lee, Young-Su Ku, Han-Young Jung, M. Kim, K. Joa, C. Kim

{"title":"Paraneoplastic Neurologic Syndrome in Small Cell Lung Carcinoma","authors":"Young-Gon Lee, Young-Su Ku, Han-Young Jung, M. Kim, K. Joa, C. Kim","doi":"10.18214/jend.2023.00010","DOIUrl":"https://doi.org/10.18214/jend.2023.00010","url":null,"abstract":"A 54-year-old male smoker, previously in good health, was admitted to the hospital due to a tingling sensation in his upper and lower extremities. He reported difficulty walking due to a loss of balance and numbness, leading to an initial diagnosis of chronic inflammatory demyelinating polyneuropathy. Brain and spine magnetic resonance imaging, along with needle electromyography, yielded inconclusive findings. However, a nerve conduction study indicated a length-dependent pattern of sensory-dominant polyneuropathy. A cerebrospinal fluid study did not reveal any specific findings in terms of cell numbers, proteins, or immune tests. Following hospitalization, the patient reported progressive dizziness upon standing, leading to a preliminary diagnosis of orthostatic hypotension. However, a positive anti-Hu autoantibody test, along with chest computed tomography and positron emission tomography scans, revealed a mass in the left interlobar lymph node, suggestive of lung cancer. An endoscopic biopsy confirmed the presence of small cell lung cancer (SCLC). The patient underwent chemo-radiation treatment for the SCLC and immunoglobulin therapy for sensory ganglionopathy. As a result, a definitive diagnosis of paraneoplastic neurologic syndrome was made. Although such cases are rare, our observations suggest that symptoms of dysautonomia and sensory ganglionopathy may be associated with the production of anti-Hu antibodies.","PeriodicalId":440658,"journal":{"name":"Journal of Electrodiagnosis and Neuromuscular Diseases","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123048746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diagnosis and Treatment of Cauda Equina Arachnoiditis, a Rare Manifestation of Tuberculosis Meningoencephalitis: A Case Report 罕见的结核性脑膜脑炎——马尾蛛网膜炎的诊断与治疗1例

Journal of Electrodiagnosis and Neuromuscular Diseases Pub Date : 2023-04-30 DOI: 10.18214/jend.2022.00199

Tae Yong Kim, D. Kim

{"title":"Diagnosis and Treatment of Cauda Equina Arachnoiditis, a Rare Manifestation of Tuberculosis Meningoencephalitis: A Case Report","authors":"Tae Yong Kim, D. Kim","doi":"10.18214/jend.2022.00199","DOIUrl":"https://doi.org/10.18214/jend.2022.00199","url":null,"abstract":"Tuberculous meningoencephalitis (TM) is an acute, progressive form of tuberculosis (TB). The epidemiology, clinical signs, and diagnosis of TB are well established, but several atypical forms of tuberculous spinal arachnoiditis can be easily misdiagnosed. We report a rare case of TM with cauda equina arachnoiditis diagnosed by magnetic resonance imaging and an electrodiagnostic study. A 26-year-old otherwise healthy male patient experienced fever, headache, gait disturbance, and bladder and bowel incontinence. Needle electromyography (EMG) recordings were suggestive of bilateral diffuse lumbar and lumbosacral polyradiculopathy, and the pudendal sensory-evoked potential and bulbocavernosus reflex latencies were prolonged. Lumbar arachnoiditis is a rare clinical condition that warrants a heightened index of suspicion. It has diverse etiologies and symptoms, and it can lead to potentially serious and irreversible disorders. This case illustrates the usefulness of nerve conduction, EMG, and pudendal sensory-evoked potential and bulbocavernosus reflex latency studies in the diagnosis of cauda equina syndrome induced by TB arachnoiditis.","PeriodicalId":440658,"journal":{"name":"Journal of Electrodiagnosis and Neuromuscular Diseases","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130921641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prolonged Limb and Respiratory Muscle Weakness Associated with Japanese Encephalitis Virus Infection: A Case Report 日本脑炎病毒感染相关肢体延长及呼吸肌无力1例报告

Journal of Electrodiagnosis and Neuromuscular Diseases Pub Date : 2023-04-30 DOI: 10.18214/jend.2022.00136

Sun Hong, Seoyeong Park, Yeji Lee, R. Lee, Sung Eun Hyun

{"title":"Prolonged Limb and Respiratory Muscle Weakness Associated with Japanese Encephalitis Virus Infection: A Case Report","authors":"Sun Hong, Seoyeong Park, Yeji Lee, R. Lee, Sung Eun Hyun","doi":"10.18214/jend.2022.00136","DOIUrl":"https://doi.org/10.18214/jend.2022.00136","url":null,"abstract":"Patients diagnosed with Japanese encephalitis (JE) may present with flaccid paralysis. JE has also been reported to be accompanied by anterior horn cell disease or motor axonal polyneuropathy. We report a case of a patient with JE with prolonged limb and respiratory muscle weakness who underwent electrodiagnostic studies, including a phrenic nerve conduction study, 10 months after the onset of paralysis. During that 10-month period, severe weakness of the upper and lower extremities showed no recovery, and the patient required long-term ventilator support through a tracheostomy. Nerve conduction studies and electromyography revealed chronic anterior horn cell disease with abundant denervation potentials involving the craniobulbar, cervical, thoracic, and lumbosacral segments. In addition to the nerves in the upper and lower extremities, the phrenic motor nerves showed abnormalities indicative of diaphragmatic weakness. Therefore, in patients with JE with chronic limb weakness and respiratory difficulty, thorough electrodiagnostic studies should be performed to diagnose the combination of anterior horn cell disease with encephalitis and to evaluate the condition’s severity and prognosis.","PeriodicalId":440658,"journal":{"name":"Journal of Electrodiagnosis and Neuromuscular Diseases","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123443412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Etiopathogenesis of Fibromyalgia 纤维肌痛的发病机制

Journal of Electrodiagnosis and Neuromuscular Diseases Pub Date : 2023-04-30 DOI: 10.18214/jend.2022.00227

Seung-Geun Lee, Geun-Tae Kim

引用次数: 0

Vasculogenic Myoclonus of Peripheral Origin after Whiplash Injury: A Case Report 鞭伤后外周性血管源性肌阵挛1例报告

Journal of Electrodiagnosis and Neuromuscular Diseases Pub Date : 2023-04-26 DOI: 10.18214/jend.2022.00192

W. Choi, H. Kim

引用次数: 0

Novel Pathogenic Variant in PIEZO2 in a Korean Patient with Distal Arthrogryposis 韩国远端关节挛缩患者PIEZO2的新致病变异

Journal of Electrodiagnosis and Neuromuscular Diseases Pub Date : 2023-04-24 DOI: 10.18214/jend.2022.00171

Taewon Kim, Seung-Ah Lee, W. Choi, Seong-Woong Kang, Young-Chul Choi, H. Park

引用次数: 0