View clinical trials related to Polyneuropathies.
Filter by:The purpose of this research study is to evaluate how exercise and surgical weight loss affect how likely an individual is to develop peripheral neuropathy and other neurologic complications.
Background: Intensive Care Unit (ICU) survivors often develop an acquired weakness due to a Critical Illness Polyneuropathy (CIP). Early mobilization in ICU, by reducing the bed rest and decreasing the oxidative stress, was shown to represent a valid preventive option. Purpose: To evaluate whether ICU sessions of stepping verticalization associated with Functional Electrical Stimulation (FES) of the lower limbs are able to reduce the occurrence of CIP in Acquired Brain Injured (ABI) patients. Methods: all the ABI patients admitted in our Neurorehabilitation Unit from our ICU were retrospectively evaluated. Patients affected by previous peripheral neuropathy, diabetes, cancer, alcoholism, viral hepatitis, AIDS and autoimmune diseases were excluded. They were divided into 3 groups according to the rehabilitation strategy received in ICU: group 1 received conventional physiotherapy + stepping verticalization sessions with Erigo® (Hocoma, Switzerland); group 2 received conventional physiotherapy + stepping verticalization sessions with FES using ErigoPro®; group 3 received only conventional physiotherapy. As for internal protocol, all patients started rehabilitation in the first week from the ABI and performed 60 minutes/day of rehabilitation, 5 days/week. Primary outcome was the evidence of CIP at Neurorehabilitation admission (=ICU discharge), according to neurophysiological criteria. Secondary outcomes were the strength impairment at Neurorehabilitation discharge, measured by the total Motricity Index score and the Functional Ambulation Classification (FAC) score, assessing quality of gait.
This project aims to understand how nerve mechanical properties are altered in patients with rare peripheral neuropathies . Stiffness of various peripheral nerves will be measured using ultrasound shear wave elastography. Patients will be compared with age-matched controls.
Peripheral neuropathies are diseases that affect the nervous system outside the brain and spinal cord, their prevalence is 1% in the general population, the causes are extremely varied with more than 200 identified causes; the main ones are diabetes, excessive alcohol consumption and chemotherapy. They may be sometimes disabling but generally preserve autonomy. Transthyretin amyloidosis is a rare multisystematic hereditary disease with autosomal dominant transmission. They present usually as a peripheral neuropathies (FAP). They are due to a point mutation of the transthyretin gene (chr 18q). FAP is secondary to endoneurial amyloid deposits and are characterized by a slowly progressive sensory, motor and autonomic. FAP is the most severe hereditary polyneuropathy of the adult are irreversible and fatal within 5 to 12 years from onset. Most frequent mutation of TTR gene is located on the second exon; but more than 100 mutations have been reported. Prevalence of FAP is 1 per 1 million inhabitants. They have been reported until 1990s' in four endemic areas North of Portugal, Sweden, Japan and Majorca. In these areas, diagnosis is facilitated because of the stereotypical presentation : a length-dependent polyneuropathy with predominant involvement of thermal and pain sensations and autonomic dysfunction, early onset in the third decade and a predominant Met30 TTR mutation. Positive family history is frequent 85% (one of the parents is affected). Diagnosis requires detection of TTR mutation by molecular biology (blood sample) and characterization of amyloid deposit on labial salivary gland biopsy.
Chemotherapy-induced peripheral neuropathy (CIPN) is a highly prevalent and clinically relevant side-effect of cancer treatment. The severe symptoms such as loss of sensation, numbness, pain, absent reflexes or loss of balance control not only diminish children's quality of life but also affect the medical therapy. To date, there are no effective treatment options to reduce the symptoms of CIPN. Promising results have so far been achieved with specific exercise interventions. The investigators would therefore like to conduct a prospective, multicenter, two-armed trial (RCT with follow-up). Patients (N=20) will be recruited from the Hospital for Children and Adolescents, Kantonsspital Aarau. Prior to randomization, all primarily eligible patients that have received a platin derivate or vinca-alkaloid, will be screened for symptoms of CIPN. Eligible patients with a neurologically confirmed CIPN will then be randomized either into an intervention group or a control group (CG). Patients in the intervention group will perform a standardized, age-adjusted, specific playful sensorimotor training (SMT) program twice a week for 12 weeks in addition to usual care, while the control group receives treatment as usual. The CG will be given the opportunity to participate in the intervention after study completion. Data change will be assessed at 3 time points: At baseline (T0), after 12 weeks (post intervention testing, T1), and after 12 weeks of follow-up (T2). Primary endpoint is the Ped-mTNS score in order to subjectively as well as objectively assess the severity of CIPN symptoms. It contains a short questionnaire as well as more objective parameters such as light touch sensation, pin sensibility, vibration sensibility, deep tendon reflexes and muscular strength. Additionally, the CIPN symptom pattern will be assessed via nerve conduction studies, CIPN related pain, dorsiflexion and knee extension as well as postural control. Furthermore, investigators will be evaluating patients' level of physical activity, walk to run transition time, lower limb power as well as patients integration in physical education (PE) in school and sport club activities. The investigators hypothesize that patients in the intervention group will be able to reduce relevant symptoms of CIPN, improving related physical functions and enhancing children's social reintegration.
This is a population-based study of type 2 diabetes patients with and without neuropathy recruited from the Danish National Type 2 Diabetes cohort (DD2). Diabetic patients with neuropathy may suffer from incapacitating symptoms such as pain, muscle weakness and impaired balance. Muscle weakness may cause reduced balance and postural instability increasing the risk of frequent falls and thereby increased morbidity and mortality. Thus, diabetic neuropathy is associated with significant disabilities having major impact on activities of daily living and quality of life. The effects of resistance training on neuropathy symptoms, muscle strength and muscle structure in patients with and with diabetic neuropathy will be examined.
National, multicenter, epidemiological, longitudinal protocol to investigate the hATTR prevalence in an at-risk population for Hereditary Transthyretin Amyloidosis (hATTR) and subjects diagnosed with hATTR, to monitor the clinical status in TTR positive subjects and to establish hATTR biomarker/s
Chronic inflammatory demyelinating polyneuropathy (CIDP) is a treatable form of peripheral neuropathy with suspected autoimmune cause. The current first-line treatment is IVIG (immune globulin), which is infused in a set regimen that requires 4-5 hours in a hospital day unit, taking up resources such as nursing time and hospital space. Chronic treatment is required in most cases.
Peripheral neuropathy is just assessed by determination of Vibration sensation, pressure sensation, superficial pain or temperature. The most commonly used technique for diagnosis of peripheral neuropathy is nervous conduction (NC) and electromyography (EMG). But EMG/NC is bothersome and techniques using electric currents to measure NC and needles to study muscle innervations are uncomfortable. Quantitative NeuroSensory Testing (QST) is essential in the evaluation of small-caliber A-delta and C-fibers, the primary transmitters of thermal and pain sensation. QST can demonstrate neurosensory abnormalities when it is non-invasive test, selective to small fibers despite negative EMG/NCV finding. The investigators predict QST can be used for the early diagnosis and follow-up of small-fiber neuropathy in diabetes patients. The investigators also predict the early evaluation of diabetes neuropathy with QST can reduce the diabetes patient progress to advance stage of DM foot or limb amputation.
Investigators propose a placebo controlled, double blinded study to examine efficacy of topical Gelnique 3%TM (3% oxybutynin) daily for 20 weeks) in improving IENF density in type 2 diabetic subjects with established peripheral neuropathy. This site most clearly demonstrated efficacy of topiramate in reversing IENF loss within 18 weeks in our prior study. Subjects will also undergo quantitative sensory testing (QST) and assays of laser Doppler skin blood flow (SkBF), neuropathy total symptom score (NTSS-6), and quality of life (Norfolk QOL-DN), along with standard measures of physiology and fasting blood chemistry. Subjects with IENF loss of between 20-75% of normative values and thus amenable to therapy-induced recovery, will be randomized into placebo (N=30) or active drug (N=30) arms and instructed in how to apply 84 mg Gelnique 3%TM or hydrogel placebo to cover a 2 in2 region of skin adjacent to the initial biopsy site, as per the manufacturers instructions (http://www.gelnique.com/gel3/). Treatment will continue daily for 20 weeks, with monthly phone calls to monitor compliance. After 20 weeks, subjects will return for a second series of measurements and 3 mm skin biopsy from the treated region of skin.