View clinical trials related to Chronic Pain.
Filter by:Intercostobrachial nerve (ICBN) is a cutaneous nerve that provides sensation to the lateral chest, upper medial arm and axilla. It arises from the second intercostal nerve and leave intercostal space at the level of midaxillary line. It then pierces the serratus anterior muscle and enters axilla. Intercostobrachial nerve is encountered during axillary lymph node dissection (ALND) while mobilizing axillary contents laterally off the chest wall and tends to tether axillary contents to the lateral chest wall. Many surgeons routinely sacrifice it as doing so makes mobilization easier and allow exposure of long thoracic neve. Currently there is no consensus on the usefulness of preserving intercostobrachial nerve. According to a 2020 systemic review and meta-analysis, prevalence of CPSP/ PPSP following breast cancer surgery ranged from 2% to 78% and pooled prevalence was found to be 35%. Higher prevalence was associated with ALND. Several risk factors have been identified which contribute to the development of PPSP. These include; Preexisting pain, preoperative opioid exposure, genetics, psychological factors such as anxiety, depression or catastrophizing, intensity of acute postoperative pain and nerve injury during surgery. As a result of nerve injury, damaged and non-damaged nerve fibers start generating action potential spontaneously. These are considered ectopic inputs as they do not arise from peripheral terminals. These inputs lead to the development of central sensitization, which is a state of exaggerated functional response of neurons involved in the pain pathway. This increased sensitization results due to increased membrane excitability, enhanced synaptic efficacy and decreased inhibition. The aim of the present trial is to investigate the effect of ICBN preservation on chronic/ persistent post surgical pain (CPSP/ PPSP). This will be achieved through a randomized control trial with CPSP/ PPSP as a primary outcome measure. Secondary outcome measures will include Health Related Quality of Life (HRQoL), operating time, lymph node yield, functional status of ipsilateral shoulder, post-operative complications and post-operative use of opioid analgesics.
The investigators hope to use MRI biomarkers to identify and characterize sensorimotor network disruption patterns associated with chronic pain and sensory deficits in CP. Investigators will use existing information in the medical record as well as subjective reports from interview, physical exam data, and anatomical and functional MRI data to non-invasively identify brain injury correlates of pain and sensory deficits.
This new research projet in pain is enrolled into an international official collaboration between researchers and clinicians from Irmandade da Santa Casa de Londrina (ISCAL) and those from two Quebec universities: University of Quebec in Chicoutimi (UQAC) and University of Quebec in Rimouski (UQAR). ISCAL as a living laboratory research environment (sites, equipment, technology) for researchers, clinicians, students, and patients pool will make this project unique in the world, especially to stablish an integral concept on pain from identification, assessment and management, using neurophysiological central measures across patients with neuromusculoskeletal disorders. ISCAL in partnership with Santa Hospital in Londrina admit so many patients per day suffering of pain, by supporting a specific size of sample for establishment of this integral concept in pain. This project builds on the foundations already well installed at ISCAL for data acquisition and storage, from an ideal set-up including patients with pain and clinicians. ISCAL infrastructure will be used to improve the acquirement of pain data from patients, using high-tech tools in a simple and robust experimental protocol targeting the central nervous system (CNS). Pain conventional evaluation (by questionnaires or simple questions related to pain intensity from anamneses or inspection doctor) will be completed by neurophysiological measures of the CNS activity based on the acquisition of biological signals and related to functional activities of the patients. A specific physiological behavior of pain will be determinate, using different types of preprocessing and statistical analyzes on biological signals. While pain and physical dysfunction mechanisms involve through the CNS, measurements from the CNS will allow to better understand the profiles and needs of the population (active adults and older people) suffering from pain and disabilities. The knowledge acquired throughout this research program will improve the pain care in Santa Casa Hospital, the evidence-based practices (EBP) on site by specialist doctors and health professionals (nursing, medical, physiatry, physiotherapist etc.), and mainly will improve the quality of life of patients with pain. This project is a sharing of expertise beneficial to both poles, including the training of students, the use of advanced technologies and the exploration of new avenues in pain research grounded on the development of ISCAL in an international collaboration perspective. All of the work from this research program aims to make ISCAL the reference center for chronic pain in Paraná (south of country) and further, for all Brazil.
The opioid crisis is a growing problem around the world, with prescription opioids being a major contributor to this crisis. They can be prescribed in different chronic and acute settings, such as surgery. This is therefore an event which may mark a first exposure to opioids in many opioid-naive patients and be associated with subsequent long-term use. This long-term persistent opioid consumption (POC) after surgery may be due, among other things, to chronic postsurgical pain (CPSP). Many risk factors have been identified in the development of chronic pain. Some are related to the surgery while others are related to patient characteristics. Of these, preoperative opioid use, pre-existing pain, and psychological history are major factors that increase the risk of POC or CPSP. The population having undergone major abdominal surgery remains poorly represented in studies of postoperative POC. It can be reasonable to think that these patients may have a similar high risk of CPSP and POC as other surgical patients. The potential harmful effects of POC and CPSP may limit the recovery of these patients and impair their quality of life (QoL). The risk factors for CPSP are important to consider when considering POC. While psychological factors related to pain have been shown to be associated with postoperative pain and analgesic use, the association between unrelieved postoperative pain and POC may have been underestimated. Regional anesthesia is frequently used in major abdominal surgery to reduce the risk of acute and chronic postoperative pain. However, data regarding CPSP specifically after major abdominal surgery are lacking, and the role of neuraxial analgesia on its prevention and on postoperative opioid use is unclear. Since little is known about the prevalence of POC after major abdominal surgery and its determinants, the investigators propose to conduct a major abdominal surgery cohort study by examining POC and CPSP using information reported by patients.
This study will be a single-site, two-arm randomized controlled trial conducted among chronic pain patients. Chronic pain patients will be randomized by a computer-generated randomization schedule with simple random allocation (1:1) to either One MORE or a wait-list control condition (WLC). One MORE will be delivered individually via a HIPAA compliant virtual meeting platform.
It is well known that patients suffering from chronic pain report higher levels of pain, anxiety, and depression if they have experienced a traumatic event. However, little is know about pain area and widespreadness. In this retrospective study, we want to investigate whether pain area and widespreadness differs in chronic pain patients with and without traumatic events. To test this hypothesis we will retrospectively analyse pain drawings collected at the pain outpatient department from Hannover Medical School. Participants will be divided into four groups depending on the severity of their traumatic events: no trauma; accidental trauma; interpersonal trauma; post-traumatic stress disorder (PTSD).
Pain is a frequent and difficult to treat symptom in patients with advanced kidney disease undergoing hemodialysis. Pharmacokinetics and pharmacodynamics have complex pharmacokinetics and pharmacodynamics in these types of patients, so non-pharmacological therapies could be very useful. In this project the investigators propose to test whether the use of a virtual reality platform, designed by the company Psious and tested in other clinical settings, can reduce the pain that patients experience during connection to the dialysis session. For this the investigators have designed a crossover clinical trial, which will be carried out on 107 hemodialysis patients, in which the intensity of pain (primary objective) and anxiety (secondary objective) that patients experience in the sessions in which participants are treated Using virtual reality, it will be compared with the intensity of pain and anxiety experienced by these same patients, in sessions in which the virtual reality platform is not used. The results of this clinical trial can support the use of virtual reality as an adjunctive pain treatment in patients with advanced kidney disease.
Inadequate postoperative pain management can lead to physical and psychological distress in patients as well as impact surgical wound healing and increase the risk of developing postoperative delirium and cardiopulmonary and thromboembolic events. Severe postoperative pain may also result in the development of chronic post-surgical pain (CPSP), which in turn can lead to prolonged use of opioids and increased health-care costs. A descriptive survey study in 60 postpartum women who received cesarean section suggested that the presence of postoperative pain significantly reduced the willingness of breastfeeding and infant care. The incidence of CPSP after cesarean delivery has been reported to vary from 1% to 18% up to 1 year after operation. Patient-controlled epidural analgesia (PCEA) is considered as the standard pain management strategy for post-cesarean pain. However, correct placement of epidural catheter for effective postoperative pain management is more technical demanding, and accidental dural puncture is associated with increased risk of postdural puncture headache. It also increases risk of other complications, including urinary retention, systemic toxicity of local anesthetics and formation of epidural hematoma. Therefore, the development of a safe, conveniently operated, and long-lasting analgesic strategy, which serves as background pain control modality up to several days after cesarean section should provide clinically beneficial advantages in the management of acute postoperative pain and prevention of CPSP in postpartum women. Naldebain® is prodrug of nalbuphine, which was approved by the Taiwan FDA in 2017. Naldebain® is rapidly hydrolyzed by tissue of plasma esterase to release nalbuphine. The bioavailability of nalbuphine following intramuscular injection Naldebain® was 85.4%, and it took approximately 6 days for the complete release of Naldebain® into the blood circulation. Therefore, a single parenteral injection of Naldebain® could provide long lasting analgesic effect in several phase II trials. However, Naldebain® has not been tested in the pain control after cesarean section. Therefore, this PI-initiated prospective, randomized, open-label, non-inferiority trial aims to investigate the clinical efficacy of Naldebain® in management of acute postoperative pain in term parturient who receive elective cesarean section to provide analgesic effect that is not inferior to the standard PCEA and prevent the development of CPSP.
Video-assisted thoracic surgery (VATS) is frequently performed in thoracic surgery. It is widely accepted that VATS causes acute pain. Many factors such as postoperative analgesia treatment plan, operation time, number of chest tubes, and duration of chest tube stay can affect acute pain. This acute pain prolongs the discharge time of the patients and increases the frequency of postoperative pulmonary complications and postoperative morbidity. Postoperative acute pain may cause chronic pain in the later period, and may adversely affect the quality of life of the patients. This study, it was aimed to analyze the symptoms of chronic pain in the 1st and 3rd months postoperatively in patients who had undergone VATS.
This is a cross-sectional investigation into modulating mechanisms in patients with chronic subjective tinnitus, which will compare 4 patient groups namely chronic tinnitus with chronic pain, chronic tinnitus without chronic pain, chronic pain without tinnitus and healthy controls.