neurophysiological studies

  • 文章类型: Case Reports
    Guillain-Barré综合征是一种自身免疫性疾病,通常以进行性屈肌上升运动缺陷和感觉异常为特征。然而,非典型演示文稿,例如孤立的面部瘫痪,是罕见的,在诊断上具有挑战性。我们描述了一名46岁男性患者的格林-巴利综合征的独特病例,表现为孤立的双侧面瘫,没有既往病史。症状包括舌头沉重,失去味道,构音障碍,无法闭合眼睑。神经系统检查证实双侧面瘫。实验室检查和脑脊液分析无异常,除了白蛋白细胞学解离。肌电图显示面神经严重脱髓鞘损伤。患者对静脉注射免疫球蛋白治疗反应良好。此病例强调了在孤立性面部瘫痪患者中考虑格林-巴利综合征的必要性。全面的临床评估,由实验室和肌电图检查结果支持,对于准确诊断和有效治疗至关重要。早期识别和干预是这些非典型表现中最佳结果的关键。
    Guillain-Barré syndrome is an autoimmune condition typically characterized by progressive areflexic ascending motor deficit and paresthesia. However, atypical presentations, such as isolated facial diplegia, are rare and diagnostically challenging. We describe a unique case of Guillain-Barré syndrome in a 46-year-old male patient, presenting as isolated bilateral facial paralysis without preceding medical history. Symptoms included tongue heaviness, loss of taste, dysarthria, and inability to close eyelids. A neurological examination confirmed bilateral facial paralysis. Laboratory tests and cerebrospinal fluid analyses were unremarkable, except for albumin-cytological dissociation. Electromyography revealed severe demyelinating damage to facial nerves. The patient responded well to intravenous immunoglobulin therapy. This case highlights the necessity of considering Guillain-Barré syndrome in patients with isolated facial diplegia. A thorough clinical evaluation, supported by laboratory and electromyographic findings, is crucial for accurate diagnosis and effective treatment. Early identification and intervention are key for optimal outcomes in these atypical presentations.
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  • 文章类型: Journal Article
    重症监护病房(ICU)-获得性虚弱(ICU-AW)是在危重患者中临床检测到的全身性肌肉无力,除危重疾病外没有其他可能的病因。ICU-AW在接受原位肝移植(OLT)的患者中并不常见。我们的报告揭示了在单个中心观察到的具有早期同种异体移植功能障碍的OLT患者中ICU-AW病例的最高数量。在2015年1月至2023年6月接受OLT的282例患者中,有7例(2.5%)在ICU中出现全身肌肉无力并接受了神经生理学检查。神经系统检查显示眼外保留,所有患者均无深层肌腱反射的弛缓性四肢瘫痪。神经生理学研究,包括肌电图和神经传导研究,显示异常与纤维性颤动的潜力和小的多相运动单位在检查的肌肉快速募集,以及复合肌肉动作电位和感觉神经动作电位的振幅降低,没有脱髓鞘的特征。所有患者的移植前临床状况都很关键。ICU入住期间,早期同种异体移植功能障碍,急性肾损伤,长时间机械通气,脓毒症,高血糖症,所有患者均出现高输血。两名患者再次移植。5名患者在90天时存活;2名患者死亡。在不合作的OLT患者中,神经生理学检查对于ICU-AW的诊断至关重要.在此设置中,大量红细胞输血是ICU-AW的潜在危险因素.
    Intensive Care Unit (ICU)-Acquired Weakness (ICU-AW) is a generalized muscle weakness that is clinically detected in critical patients and has no plausible etiology other than critical illness. ICU-AW is uncommon in patients undergoing orthotopic liver transplantation (OLT). Our report sheds light on the highest number of ICU-AW cases observed in a single center on OLT patients with early allograft dysfunction. Out of 282 patients who underwent OLT from January 2015 to June 2023, 7 (2.5%) developed generalized muscle weakness in the ICU and underwent neurophysiological investigations. The neurologic examination showed preserved extraocular, flaccid quadriplegia with the absence of deep tendon reflexes in all patients. Neurophysiological studies, including electromyography and nerve conduction studies, showed abnormalities with fibrillation potentials and the rapid recruitment of small polyphasic motor units in the examined muscles, as well as a reduced amplitude of the compound muscle action potential and sensory nerve action potential, with an absence of demyelinating features. Pre-transplant clinical status was critical in all patients. During ICU stay, early allograft dysfunction, acute kidney injury, prolonged mechanical ventilation, sepsis, hyperglycemia, and high blood transfusions were observed in all patients. Two patients were retransplanted. Five patients were alive at 90 days; two patients died. In non-cooperative OLT patients, neurophysiological investigations are essential for the diagnosis of ICU-AW. In this setting, the high number of red blood cell transfusions is a potential risk factor for ICU-AW.
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  • 文章类型: Journal Article
    UNASSIGNED: Comparison of early effects of supervised (led by physiotherapist) and unsupervised rehabilitation protocols in patients with myofascial pain syndrome, disk-root conflict and degenerative spine disease at cervical level.
    UNASSIGNED: Three groups of patients (n = 60 each) with clinically and neurophysiologically confirmed myofascial pain syndrome, disk-root conflict and degenerative spine disease were randomly subdivided to supervised and unsupervised treatment subgroups (n = 30 each). Thirty healthy subjects with similar demographic and anthropometric properties as patients were enrolled to control group. Patients were examined before and after rehabilitation with visual analog scale of pain, Spurling\'s test, painful passive elongation and active trigger points detection in trapezius muscle, sensory perception studies and surface electromyography (at rest, during maximal contraction) and electroneurography.
    UNASSIGNED: Supervised treatment resulted in decrease of pain intensity (P = .001) and Spurling\'s symptoms incidence (P = .008) in patients from disk-root conflict group. Painful elongation and incidence of trigger points in trapezius muscle were the least observed at P = .009 after supervised therapy of myofascial pain syndrome. Supervised therapy resulted in decrease of resting electromyography amplitude and increase of maximal contraction electromyography amplitude from trapezius muscle (P = .02) in myofascial pain syndrome patients and from biceps and abductor pollicis brevis muscles of patients from other groups (P from .05 to .001). Median nerve electroneurography and sensory perception results improved at P = .05 after supervised treatment in disk-root conflict group.
    UNASSIGNED: Twenty-day supervised rehabilitation provides better therapeutic effects than unsupervised one in treatment of muscle dysfunctions in patients with myofascial pain syndrome, degenerative changes and disk-root conflict at cervical spine.
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  • 文章类型: Journal Article
    OBJECTIVE: Bifacial weakness with paraesthesias subtype of Guillain-Barré syndrome (GBS) is thought to be demyelinating in nature but the evolution of serial nerve conduction study (NCS) findings has not been studied. We retrospectively analyzed the changes on serial NCS of patients with bilateral facial neuropathy.
    METHODS: We described the clinical features, serial blink reflex, facial nerve and limb NCS of such patients.
    RESULTS: Five patients fulfilled our study criteria. Patients 1 and 2 were diagnosed clinically to have bilateral Bell\'s palsy, patients 3 and 4 as bifacial GBS subtype and patient 5 as facial palsy associated with acute HIV infection. In all, the initial neurophysiological tests showed absent blink response and normal facial NCS. Patient 1\'s repeat tests were normal. Patient 2\'s repeat blink reflex showed mildly prolonged latency. Repeat blink reflex latency of patients 3, 4 and 5 were in the demyelinating range. Patient 3 also had prolonged facial nerve latency. Patients 3 and 4 had serial limb NCS showing progressively prolonged latency.
    CONCLUSIONS: Serial NCS suggests that the bifacial GBS subtype is demyelinating in nature.
    CONCLUSIONS: This study provides further evidence for a bifacial subtype of GBS with a demyelinating pathophysiology.
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