Active clinical trials for "Chronic Pain"

The primary aim of this study is to understand how insomnia contributes to chronic pain in youth. Specifically, the investigators are interested in how insomnia and the treatment of insomnia impact emotional states and the body's ability to efficiently modulate pain, either to increase or decrease pain perception. It is hypothesized that insomnia is associated with increased negative emotional states and impaired pain modulation, which will improve after treatment of insomnia. In this project, the objectives are to 1) evaluate the role of pain modulation as a potential mechanism through which insomnia impacts pain symptoms, and 2) evaluate the role of negative affect as mediators of the impact of insomnia on pain modulation. Study participation will consist of a baseline assessment, a 5 session (once per week) virtual group cognitive behavioral therapy for insomnia (CBT-I) intervention, and a follow-up assessment. Investigators will also ask teen participants to complete the consensus sleep diary daily for 7 days prior to the baseline and follow up study visits. Assessment visits will consist of two types of assessments, questionnaires and quantitative sensory testing (QST). Participating parents and teens will complete questionnaires (both child and parent report) assessing the child's pain, sleep, and psycho-social variables. QST will assess pain inhibition via conditioned pain modulation (CPM) and pain facilitation via temporal summation (TS).

Since the original publication on the erector spinae plane (ESP) block in 2016, the technique of the ESP block has evolved significantly in the last few years. Current reports suggest that the ESP block provides adequate analgesia in thoracic and abdominal sites in a post-surgical and chronic pain patient. However, there were still inconsistencies and unclear spread of local anesthetics in ultrasound guide ESP block. This study focusing on the spread of local anesthetic in ESP block under ultrasound and fluoroscopy and possible mechanisms of action.

The purpose of this study is to investigate if rTMS may have a positive impact on pain thresholds and cortical excitability in subjects with chronic musculoskeletal diseases of complex cranio-cervical-mandibular with myofascial component.

The aim of the study is to evaluate efficacy and safety of long term (14 days) wound infusion with levobupivacaine in patients with breast cancer undergoing mastectomy with immediate breast reconstruction: this is a double blind, randomized, parallel group study. The study moves from the concept that nociceptive stimulus last further than 48 hours after surgical intervention: long term analgesia is necessary to provide a real benefit to the patient and provide central sensitization. Intralesional catheter is placed at the end of surgery. In the first 24 postoperative hours we provide continuous wound infusion with levobupivacaine 0,25% 5ml/h with morphine Patient Controlled Analgesia (PCA) when NRS >4. From the second postoperative day morphine PCA is removed and patients are randomized to receive levobupivacaine 0,25% or saline, released with 5 ml boluses and lock-out of 2 hours, with rescue analgesia with tramadol 37,5 mg + acetaminophen 325 mg oral fix combination (Patrol). Intralesional catheter is taken off 14 days after surgical intervention or after 36 hours of non-use. Pain evaluation (NRS at rest and movement) and oral rescue doses consumption are performed; pain physicians also care about any catheter-related or drug-related side effect, registering number of total boluses. Patients are provided with a home diary for pain scores to be filled and brought back when surgical visit is performed. A phone interview at 1 and 3 month is performed to investigate pain chronicization. Surgical evaluation is provided, also to establish any catheter-related infective or healing complication. Physiatric evaluation before the intervention and 1 and 3 months is provided to ensure rehabilitation process. A validated questionnaire (short form 36/ SF-36) must be filled by all patients, to understand differences in return to a normal quality of life and to social activities between the two groups.

In the present study, the investigators intend to investigate whether anodal transcranial direct current stimulation (tDCS) may be effective in reducing pain in chronic pain patients.

The purpose of the study is to measure the efficacy of varying spinal cord stimulation frequencies and pulse-width settings on chronic pain management. The spinal cord stimulator settings that are most effective in chronic pain management hope to be revealed for the purposes of this study. In this double-blind study, both the patient and the staff will not be aware of the spinal cord stimulator settings for each patient each week. The representative that will set the settings each week will be blinded to the identity of each patient and will set the spinal cord stimulator from another room. While there are few papers that show the efficacy of spinal cord stimulation in treating chronic pain, there has yet to be a study performed that measures the role of stimulation frequency and pulse-widths. This study hopes to be the first.

Prevalence of chronic pain after mastectomy is beyond 50% 3 months after surgery. This pain is related to a sensitization of the central nervous system through N-methyl-D-asparate (NMDA) receptors. Ketalar might prevent the occurrence of chronic pain by anti-NMDA properties after mastectomy.

The aims of this study are to adapt, pilot, and examine the credibility, acceptability, and feasibility of an evidence-based mind-body program, the Relaxation Response Resiliency Program for Chronic Pain (p3RP), and the p3RP-Digital Monitoring Device (p3RP-DMD), which is the p3RP integrated with a commercial DMD, the Fitbit.

The investigators will evaluate the analgesic efficacy of radiofrequency splanchnic nerve denervation versus neurolytic retrocrural celiac denervation for patients with abdominal pain due to cancer pancreas

This study evaluates the effects of a pain neuroscience education (PNE) and physical exercise (PE) program in patients with chronic back pain. Half of participants receive PNE and PE program supervised by a physiotherapist and the other half receive usual physiotherapy care supported by physiotherapy protocols in primary care.