Active clinical trials for "Guillain-Barre Syndrome"

participants will be allocated into three groups, acute neuropathy (Guillain Barre Syndrome) group, neuromuscular junction disorder(myasthenia gravis ) group, and control group(people with neurological disorders not affecting the respiratory system.Ultrasonography is done on the diaphragm. The index test (ultrasound imaging of the diaphragm) is used. A high-resolution portable ultrasound machine is used, with a 7- to 13-MHz linear array transducer. Patients will be examined in the supine position. diaphragmatic thickness will is measured on both sides during a deep breath in inspiration and during expiration. objectives: primary outcome: to compare diaphragm thickness between the three examined groups. Secondary outcome: correlation between clinical scores and reference US values of diaphragm

Demyelinating diseases represent a broad spectrum of disorders and are induced by excessive inflammation most often triggered by an autoimmune mechanism. Some of these pathologies are chronic and affect the central nervous system such as multiple sclerosis (MS), others are monophasic and target the peripheral nervous system such as Guillain Barré syndrome (GBS). In neuroinflammatory pathologies, the excessive response of the pro-inflammatory Th1 and Th17 lymphocyte lines and the insufficient response of regulatory T lymphocytes (Treg) cause excessive inflammation which is deleterious to the nervous tissue. The regulation of these signaling pathways involves key proteins such as kinases. Modulation of these kinases which could allow the development of new pharmacological targets for neuroinflammation. Recent work (unpublished data) has shown an association between the expression of ERK5 and PMK2 kinases, and the clinical severity of experimental allergic encephalomyelitis, a mouse model that mimics multiple sclerosis. In order to search for new biomarkers and improve our knowledge of the actors of the initial inflammatory phase of neuroinflammatory pathologies, we propose to study the differences in expression of ERK5 and PKM2 kinases in the blood and cerebral spinal fluid (CSF) of patients followed for relapsing-remitting MS and GBS by both RT-qPCR and protein quantification. We also want to study other biological parameters which include characterization of the pro / anti-inflammatory balance by cytokine assay and lymphocyte phenotyping, metabolome study, and mild form neurofilament (NfL) assay.

This is a multi-center case-control study that aims to define the association between the exposure to an arbovirus infection and the development of a neurological syndrome in patients from Colombia. The study makes part of the Neurovirus Emerging in the Americas Study (NEAS) that is a collaborative effort that looks to combine the efforts of researchers, healthcare providers and patients in Colombia to establish a comprehensive registry of the clinical, radiological and laboratory profile of patients with new onset of neurological diseases associated mosquito-borne viruses, known as arboviruses.

This study aims to identify clinical and biological determinants and factors that predict outcome including primary outcome (percentage of changes in clinical scales pre- and after 3 months ) and secondary outcome depending on neurophysiologiacal studies and prognostic factors in individual patients with Guillain-Barre syndrome i individuals managed by plasmapheresis and IVIG immunoglobulin . This information will be used to understand the diversity in clinical presentation and response to treatment of GBS.

We are conducting a large, record-based study to assess the risk of Guillain-Barré Syndrome (GBS), a serious demyelinating disease, following immunization with the tetravalent meningococcal conjugate vaccine (Menactra) that is currently recommended for all adolescents. The study was requested by CDC and FDA because of an unexpected number of case reports to the CDC's Vaccine Adverse Event Reporting System (VAERS). The study protocol was designed by the investigators, with input from FDA, CDC, and the vaccine's manufacturer, Sanofi-Pasteur. An external advisory board that includes CDC representation, provides input regarding important decisions. The manufacturer is not participating in the conduct of the study and has no control over the analysis or dissemination of results. The study is derived from five large US health plans with a total membership of approximately 50 million over the study time period. America's Health Insurance Plans (AHIP) serves as liaison between the health plans and the Coordinating Center at the Department of Ambulatory Care and Prevention of Harvard Medical School and Harvard Pilgrim Health Care, and is the contracting organization with the health plans.

The purpose of this study is to proof and investigate the effectiveness and safety of the invented device named "Human Lumbar Puncture Assist Device (LPat)" as an assist tool to be utilized to improve the success rate of performing lumbar puncture (LP), avoid side effects from multiple punctures, avoid excess radiation if the LP need to be done under fluoroscopy, and need to obtain none traumatic tap for better CSF analysis.

Preliminary evaluation of an obstacle alerting system to enhance the user's independent mobility by improving their confidence to drive and their safety in driving a powered wheelchair.

Plasma exchange procedures remove procoagulant and anticoagulant factors. Every procedure increases the risk of bleeding and repeated procedures increase the risk of bleeding mostly because lower fibrinogen levels. The aim of study is to define coagulation status of patient after plasmapheresis with different laboratory tests and to investigate the possibility of fibrinogen concentrate replacement for the correction of induced coagulation disorder.

Introduction: In the recent past, medical training systems using virtual reality (VR) have been introduced to neurorehabilitation to train motor function deficits in patients. The usage of VR-based training systems is based on the evidence of neuroplasticity, which is responsible for recovery of patients suffering from motor dysfunction. Such systems are increasingly used to encourage purposeful limb movements in a VR environment and its efficacy has been found comparable with conventional therapeutic intervention. VR training systems, e.g. the YouGrabber® (YG), will increasingly also be used at home. Therefore, it is essential to integrate valid and reliable assessment tools to monitor the recovery process. Objectives: The aim of the clinical study is to evaluate the usability, feasibility and validity of the digital version of the ActionResearchArmTest (d-ARAT) using the YG system as a platform. Additionally, the feasibility and usability of the implementation of two rehabilitation measures that only recently became integral part of neurorehabilitation, e.g. Action Observation (AO) and Motor Imagery (MI), into the YG training software will be evaluated. Patients & methods: This observational study is designed as a single-arm trial for testing the assessment software including pre- to post rehabilitation comparison of a training involving AO and MI. Therefore, 75 adult patients with Parkinson's disease, MS, Stroke, traumatic brain injury or Guillain-Barré syndrome will be included. 30 out of the 75 patients will take part in the 4-week training on the enhanced VR-based system with a total of 16 training sessions of 45 min each. Primary outcomes will be the score on the System Usability Scale (SUS) and the ARAT as well as the d-ARAT scores. Secondary outcomes will be hand dexterity (Box-and-Block Test), upper limb activities of daily living (CAHAI) and quality of life (EQ-5D-5L). Hypothesis: The study was designed to evaluate the d-ARAT and the training software modules for the YG system. Currently AO and MI specific tasks are being integrated and the ARAT subscales will be implemented on the basis of the redesigned glove equipped with new sensors. The results are expected to give recommendations for necessary modifications. They might also contribute knowledge concerning the application of AO and MI tasks within VR training.

This case control study aims to determine whether spontaneous coronary artery dissection (SCAD) is associated with autoimmune diseases and to update the incidence of SCAD in a population-based cohort.