View clinical trials related to Chronic Pain Syndrome.
Filter by:Nocebo hyperalgesia is characterized by adverse pain outcomes, induced by patients' expectations. In the lab, nocebo effects are commonly studied via classical conditioning, a method that employs pairings of neutral cues/treatments with different pain intensities to install differential pain-related expectations. In such conditioning experiments, participants are typically taught that a (sham) treatment exaggerates their pain, by surreptitiously administering high intensity (e.g. pain) stimuli in combination with this treatment. Verbal suggestions are also often used to inform participants of the supposed adverse effects of such treatments. In nocebo studies, higher pain levels and suggestions that are of more threatening nature may induce fear, thereby adding a crucial element to the experimental manipulation. Since nocebo effects are hypothesized to arise in clinical settings due to a combination of several psychological and cognitive mechanisms, it is important to study the role that factors such as higher pain levels, conditioned pain-related fear, or more threatening verbal suggestions may play in the formation of nocebo hyperalgesia. To date, no studies have focused on the fear-inducing effect that different pain intensities or verbal threat suggestions may have and how this fear, in turn, may strengthen the acquisition of nocebo effects. This study aims to investigate whether higher pain intensity or higher pain-related fear induced via threatening suggestions facilitate the acquisition and hinder subsequent extinction of nocebo hyperalgesia. This study will be conducted at Leiden University.
Chronic pain syndromes without identified organic etiology remain a challenge for physicians. Many syndromes, including back pain, are believed to have potential underlying psychological etiology; however, the exact link remains elusive. The goal of this study is to determine if mind body therapies can help people suffering from chronic back pain. The study is a randomized, partially blinded trial examining the effectiveness of Mind Body Syndrome Therapy (MBST) in reducing disability from back pain and alleviating back pain. The investigators will secondarily investigate whether MBST can improve participant quality of life and reduce the need for pain-related hospitalization. The design of the this study consists of 3 arms with one being the intervention (MBST), one being usual care, and one being a second mind-body intervention (active control). This education program consists of a series of personal interviews and group and/or individualized lectures/sessions. Participants will also be provided reading material to study during the intervention period, and asked to continue their usual care while going through the MBST program.
This study evaluates if the application of resistive capacitive monopolar radiofrequency therapy associated with physiotherapeutic techniques and pain education provides benefits with respect to physiotherapy and pain education techniques alone in the management of patients with chronic pelvic pain.
In recent years there has been a novel approach for the treatment of chronic pain: Floatation REST (restricted environmental stimulation therapy). Floating is a therapeutic approach, in which patients float in a specialized pool or tank on water that contains high concentrations of Epsom salt (Magnesium sulfate). Water is kept at skin temperature (35-36°C) and the pool or tank is shielded to provide almost complete darkness and silence. This therapeutic approach has proven to be effective in alleviating chronic pain. Due to the difficulties associated with designing a credible placebo control there have been no randomized controlled trials (RCTs) with patients blinding so far. Such blinding, however, is crucial, to assess the true therapeutic effect of the intervention. The investigators will conduct the first patient blinded RCT of Floatation REST for chronic pain with a credible placebo control for floating and a no-treatment group.
Our previous work has identified the group of women at risk for prolonged pain, opioid use and poor functional recovery after childbirth. The optimal intervention to mitigate this risk is unknown. We propose to test an analgesic adjutant that is commonly used for post-operative pain compared to placebo to improve post-partum recovery.
To trial a traditional pain management technique from Ayurveda in a modern way - the technique involves micro - cautery to painful areas in knee osteoarthritis for patients on a waiting list for knee replacement. The Investigators will include a waiting list control series.
Pediatric chronic pain disorders are common and consequential in Western societies, occurring in 25-80% of population-based samples with a median prevalence of 11-38% and significant pain-related disability in 3-5% of these children. Pediatric chronic pain disorders have a negative impact on many aspects children's lives including mobility, night sleep, school attendance, peer relationships, family functioning, and overall quality of life. Parents caring for these children risk loss of parental earnings, and these disorders place a high financial burden on healthcare. In a nationally representative sample in the United States, costs related to health care were significantly higher ($1,339 per capita) for children with chronic pain disorders compared to children with common pediatric health conditions of ADHD, asthma and obesity. In children with clinical chronic pain conditions, such as daily headaches or fibromyalgia, chronic pain is presumably a persistent state of an overly excitable nervous system. This phenomenon known as central sensitization is characterized by excessive pain sensitivity that occurs in response to non-painful stimuli, such as light touch or contact with clothing, and slightly painful stimuli, such as a light pinprick. This hypersensitivity results from peculiar changes in the working of the central nervous system, including the spinal cord and brain, and leads to unusual intensification of pain that is out of proportion to the inciting stimulus. For example, light touch from clothing on the skin is perceived as intensely painful. Central sensitization is also thought to contribute to the spreading of pain to other body sites in several chronic pain disorders. In chronic pain disorders, the function of the central descending inhibitory modulating system is likely impaired and is traditionally measured by a phenomenon identified as "conditioned pain modulation (CPM)" and more recently measured by a phenomenon of "offset analgesia" (OA). The OA test is more robust than the CPM test and likely more acceptable to most patients, especially children, because it is shorter in duration and uses a more tolerable painful stimulus. Compared to CPM, the OA test is more tolerable because it is conducted using a painful test stimulus that is less than the maximal (suprathreshold). Additionally, the time of exposure to the painful stimulus is significantly shorter, a few seconds, in the OA test compared to CPM. The central descending inhibitory pathway that modulates pain as tested by OA is functional and mature in healthy children as young as 6 year of age, but it has yet to be investigated in children with chronic pain disorders. The investigators plan to test OA responses in a population of common pediatric pain disorders with overlapping symptomology attributed to central sensitization (such as chronic musculoskeletal pain, chronic abdominal pain and chronic headaches and chronic regional pain syndromes) and compare their responses with an age- and sex-matched control group. The characteristics of OA responses in each group will allow for assessment of the presence or absence of central sensitization as a mechanism driving the persistent, abnormal pain in a subgroup of these chronic pain disorders. The investigators hypothesize that central sensitization is the potential contributory mechanism of the central nervous system heightened sensitivity to two testing stimuli of painful (moderate heat discomfort sensation) and non-painful (warmth sensation) in children with chronic pain disorders. These types of sensations mimic those that children would be expected to experience their natural environment during typical activities of daily living such as showering/bathing in warm water or hand washing. Additionally, the Pain Sensitivity Questionnaire (PSQ) and Central Sensitization Inventory (CSI) will be used as clinical screening tools for subjective report of sensitization symptoms, and are simple and easy to administer in a clinical setting. The investigators hypothesize that these measures will correlate with the objective offset analgesia responses thus allowing for assessment of central sensitization in children with chronic pain disorders. These tests are advantageous because they are feasible to perform rapidly in a clinic setting and have utility for measurement of patient responses to therapeutic interventions. If this concept is supported by this study, future studies could utilize OA to examine the effects of various pharmacological and physical interventions used to manage children with chronic pain disorders including intensive interdisciplinary rehabilitation or specific interventions such as aerobic exercise, which likely modulates pain via similar mechanisms.
The aim of the study is to evaluate the effect of hyperbaric oxygen therapy (HBOT) on 2 types of patients' population suffering from chronic pain syndrome (Fibromyalgia): patients with history of psychological trauma and patients with history of traumatic brain injury.
To evaluate and compare the NoL index variations after a painful physiotherapy exercise in patients with upper limb CRPS, before and after a stellate ganglion block.
Eighty patients with chronic shoulder pain after breast surgery were allocated randomly into 2 groups; forty patients received fluoroscopically guided supra-scapular nerve pulsed radiofrequency (PRF) followed by injection of 0.25% bupivacaine solution containing 40 mg of methylprednisolone (group1) and forty patients received fluoroscopically guided supra-scapular nerve injection of of 0.25% bupivacaine solution containing 40 mg of methylprednisolone (group 2) without active pulsed radiofrequency only demo mode was applied.