View clinical trials related to Central Pain Syndrome.
Filter by:The objective of the study is to explore the effects of arm exercise (UE, arm ergometer) vs. leg exercise (LE, cycling ergometer) on exercise-induced hypoalgesia (EIH), central pain mechanisms and knee pain in people with knee osteoarthritis (OA). Furthermore, we will explore relations of socioeconomic status, racial discrimination, acculturative stress, and autonomic function to exercise effects on EIH, central pain mechanisms, and knee pain. This will be a pilot randomized cross-over study where all participants undergo Day 1 (baseline assessments), Day 2 (UE or LE), and Day 3 (UE or LE).
The goal of this clinical trial is to test the feasibility and effectiveness of transcutaneous vagus nerve stimulation (tVNS) to the ear on pain and autonomic function in people with knee osteoarthritis (OA). The main questions it aims to answer are: 1) whether tVNS is feasible to be used in people with knee OA; 2) whether tVNS demonstrates the trend in improving knee pain; and 3) whether tVNS has physiological effects on autonomic function (e.g., parasympathetic function) and pain perception in the central nervous system such as brain (i.e., central pain mechanisms). Participants will be asked to complete a battery of self-reported questionnaires about their demographic and behavioral information, ethnicity, pain, sleep, psychological/emotional symptoms. Subsequently, participants will complete baseline assessment where investigators will assess their knee pain severity, central pain sensitivity, and heart rate variability (a measurement for autonomic function). Then participants will receive a 60-minute tVNS. Investigators will redo the same assessment as baseline assessment after tVNS intervention to see the degree of knee pain, central pain sensitivity, and autonomic function changes. At the end of the study, investigators will assess their satisfaction level with the tVNS intervention and the feasibility of the intervention (e.g., completion rate, side effects).
Central neuropathic pain (CNP) is defined as chronic pain due to injury or disease in the central nervous system. This pain is most common among people with a spinal cord injuries (SCI), with a prevalence of about 50%. The central pain usually develops within a few months of spinal cord injury - and this period is significance in terms of this research work. This pain is one of the most complex and challenging pain syndromes. One of the reasons for this stems from its adherence to most treatments. Another reason is that there is partial information about the mechanism responsible for its development. Animal studies suggest that it is possible to prevent and / or reduce its development or reduce its strength by preventive treatment (given immediately after the injury). Currently, the treatments found to prevent or reduce central pain in animals are anti Inflammation and neuronal excitability suppressors such as interleukin 10. The purpose of this study,is to explore whether pre-treatment with pregabalin prior to the development of the central pain will prevent the incidence of pain or reduce its intensity by improving pain regulation and reducing hypersensitivity. The goal of the pharmacotherapy is to reduce the hypersensitivity- lyrica is used to reduce chronic neuropathic pain by reducing the degree of hypersensitivity in the pain system. the objectives of this study are to examine whether early treatment of central pain can prevent or reduce the incidence of pain by improving pain regulation and reducing hypersensitivity. That is, whether there will be a difference between those who take Lyrica-Pregabalin (a drug that reduces hypersensitivity of pain) compared to placebo. Methods: A randomized, double-blind, placebo-controlled study in which people with a fresh SCI will receive lyrica or placebo as soon as possible from their arrival at the rehabilitation hospital for 2-3 months during which pain system characteristics will be measured and monitored for central pain development.
rTMS of the motor cortex is an increasingly established analgesic technique for the treatment of neuropathic pain. However its efficacy is generally modest. One reason may be the that conventional rTMS targets only superficial and small cortical regions of the human brain. A newer cooled coil, the Hesed (H) coils, now allows deep and larger surface of stimulation and has been suggested to have analgesic effects in a small pilot trial in diabetic painful polyneuropathy. Based on its deeper mechanism of action and larger surface of stimulation, we hypothesize that this technique will be more effective than rTMS in patients with central pain, a highly unmet medical need. The primary objective of the present study will be to compare the efficacy of H coil, conventional rTMS and sham stimulation of the primary motor cortex in patients central neuropathic pain. Major secondary objectives will be to directly compare the analgesic efficacy of H coil versus conventional rTMS, and compare the efficacy of both techniques in patients with lower limb pain and those with upper limb pain/face. This will be a randomized tricentric sham controlled study
In order to create insights in the effects of Motor cortex stimulation (MCS) on intractable pain, an open observational study was started in 2003. The aim of this research is to: 1. to determine the clinical effectivity of MCS on pain intensity after 1 month, 1 year and 3 years of stimulation 2. to determine the clinical effectivity of MCS on QoL and daity medication intake after 3 years of MCS