Active clinical trials for "Peripheral Nervous System Diseases"

The primary aim of this study is to use the Orpyx® SI Sensory Insole System (Orpyx Medical Technologies Inc., Calgary AB, Canada) ("Orpyx" or "the Company") as an adjunct to diabetic peripheral neuropathy standard of care (SOC), and observe step count, pressure, temperature, and adherence data through remote patient monitoring (RPM). This will provide insights into patient engagement and the benefits of offering remote, preventative care.

The aim of the current study is to examine the biomechanical changes of gait kinetics in patients with either partial foot amputation or peripheral neuropathy

To understand pain pathophysiology in terms of risk factors and protective mechanisms ranging from molecular pathways to societal impacts.

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). Perspective: The study will identify risk factors for developing diabetic polyneuropathy and painful diabetic polyneuropathy and provide information on the underlying mechanisms, which will hopefully contribute to significant improvements in the treatment and prevention of diabetic polyneuropathy in future.

The main aim of the investigator's study is to propose combination of local anesthetics and adjuvants that provides both adequate anesthesia during surgery and prolonged post-operative analgesia.

The use of regional anesthesia for nerve block in diabetic patients with peripheral neuropathy is currently made on a case-by-case basis, also remains underlying uncertainty regarding the preferred technique and the likelihood of block-related nerve injury. For this many diabetic patients with otherwise healthy nerves may receive general anesthesia instead of regional anesthesia, thus giving up the benefits associated with the latter technique, including a decrease in health complications and superior analgesia following the operation. Ultrasound is used to identify the target nerve and guide needle insertion for nerve blocks, may be a useful tool to detect the presence and severity of neuropathy prior to block placement, a recent study demonstrated a statistically significant increase in the sonographic cross-sectional area of the posterior tibial nerve (PTN) in all diabetic patients who had abnormal motor transmission on nerve conduction studies. For regional anesthesiologists, the ultimate goal of detecting peripheral neuropathy and in particular, diabetic neuropathy by US is to avoid nerve injury. To do so, the association between US-detected diabetic neuropathy and block-related nerve damage must be first established, hence the purpose of this study. We aim to examine whether the cross-sectional area of PTN as assessed by preoperative US can predict nerve injury as assessed by worsening nerve conduction studies following PTN block inpatients scheduled to receive an ankle block. A further subgroup analysis will be performed in diabetic patients. We hypothesize that the cross sectional area of the PTN will correlate with motor conduction velocity on nerve conduction studies (NCS) following PTN block in patients with peripheral neuropathy. All eligible patients will undergo NCS to confirm or exclude distal neuropathy. Patients without neuropathy will be excluded from further participation in this study. Also excluded will be diabetic patients with neuropathy caused by genetic, metabolic and inflammatory diseases as well as toxic agents and drug induced. A systematic US examination of the PTN will be performed for all patients. After Block administration at surgery day the block successes will be assessed and for the purposes of the present study, patients in whom the block was not successful will be excluded from further intervention and data analyses. Eight weeks after surgery, all study patients will return to hospital for repeat NCS and US.

cross sectional observational study, aimed to assess the electrophysiological function of the motor units in liver cirrhotic patients.

Problem: A significant proportion of patients with cancer experience symptoms of sensory, motor or autonomic nerve damage from chemotherapy known as chemotherapy-induced peripheral neuropathy (CIPN). CIPN is a major dose-limiting toxicity of many chemotherapeutic regimens. Little is known about the natural history of CIPN, and the early detection and quantification of CIPN is a significant challenge. Design: The investigators propose a cohort study to evaluate the performance of the Pressure-Specified Sensory Device TM (PSSD) in assessing CIPN associated with various common chemotherapy regimens. The proposed study will examine peripheral nerve function before, during, and after chemotherapy treatment. Peripheral neuropathy will be assessed using the PSSD, the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire (QLQ) CIPN-20, and the Michigan Neuropathy Screening Instrument (MNSI). These are all established and validated methods to screen for a variety of conditions that cause peripheral neuropathy. Hypotheses: The investigators hypothesize that the PSSD will be a sensitive and specific tool for measuring CIPN. The onset of CIPN as detected by the PSSD will be compared with other screening modalities including the EORTC QLQ-CIPN20 and the MNSI. Importance: The development of CIPN often goes unnoticed until symptoms are bothersome. Having an objective tool in the care team's armament to screen for CIPN could have a significant public health impact.

This study is a diagnostic accuracy study that aims to evaluate the role of DTI in evaluation of DPN in comparison to clinical scores and nerve conduction studies (NCS). The study included 30 patients with diabetes mellitus complaining of neuropathy symptoms and 15 healthy volunteers. All subjects underwent evaluation using 1.5T DTI of median nerves and NCS. Patients underwent clinical evaluation using Neuropathy Deficit Score (NDS), Neuropathy Impairment Score in the Lower Limbs (NIS-LL) and Diabetic Neuropathy Examination (DNE) score. The values of these tests were compared and correlated and diagnostic accuracy tests were performed together with identification of cut-off score for abnormal diffusion tensor imaging parameters in diabetic neuropathy

This study aims to evaluate the rule of NMUS in detection of peripheral neuropathy in SLE patient and to correlate it to traditional neurophysiological studies, clinical signs and activity of SLE.