Active clinical trials for "Chronic Pain"

Non Coronary Heart Surgery scheduled for the study , in patients with acute postoperative period Use of tramadol retard, metamizol and dekxketoprofen the effects on pain and character has been seen in the chronic phase targeted.

For ten years, rTMS, repetitive transcranial magnetic stimulation of the motor cortex, has found its place in the treatment of drug-resistant neuropathic pain. Patients relieved by some sessions may thereafter receive a chronic invasive stimulation via electrodes implanted through a neurosurgical procedure. This is common practice at the University Hospital of Caen and in different CHU with the proper equipment rTMS. It seems permissible to provide in our center only a non-invasive technique for patients challenged with brain surgery, since according to the various meta-analyzes the analgesic efficacy of rTMS seems to be correlated to the repetition of sessions. Assessment centers and the treatment of pain allow a multidimensional assessment, bio-psycho-social of patients in order to optimize their management and experience efficiently analgesics first- and second-line. We propose a study evaluating the analgesic efficacy of rTMS, in relevant stimulation parameters reproduced according to a literature review, during 3 months after 5 active sessions separated by one week apart, in 15 patients with neuropathic pain chronic refractory to treatment of first and second line, followed by multidisciplinary center specializing in chronic pain Lower Normandy. The quality of life will also be assessed by validated scales, and the results will be compared to the literature data.

11-20% of patients undergoing abdominal surgery develop chronic abdominal pain. Adhesions are a common cause of chronic pain following surgery. Adhesions develop after up to 90% of laparotomies and 70% of laparoscopic surgeries. Obviously, not all adhesions cause pain. It is still poorly understood why adhesions cause pain in some patients, while other patients with adhesions experience no pain. In this study we explore possible mechanism through which adhesions might cause pain. For this purpose we will assess expression of molecular mediators (such as TRPV-1, SP, and the neurokinin receptor), histological characteristics, and fecal microbioma that might be associated with pain.Expression of these factor will be compared to sample from 30 patients with chronic pain attributed to adhesions, and 30 patients undergoing a reoperation with adhsiolysis for reasons unrelated to pain.

This is an open-label, randomised, single-dose, 3 arms study design.

The main aim of this study is to identify factors that may be associated with a better or worse response to interventional pain management therapies for the treatment of chronic lumbar pain in adult patients. If several predictive factors are to be identified, a predictive model will be developed.

Pain is an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage. Many factors can affect pain and its severity. This study aims to explore how the COVID-19 affects chronic pain patients in terms of pain in general, intensity of pain, desire for pain treatment including follow up visits and pain medication refills as well as sleep.

This study aims to develop and validate the first set of patient-reported outcome measures for recurrent urinary tract infection (UTI): the Recurrent UTI Symptom Scale and the Recurrent UTI Impact Questionnaire. These tools could be used in clinical practice, clinical trials and research to gather an insight into a patient's perspective of their recurrent UTI symptom severity and its impact on their life, as well as determining any possible improvement or other change in their condition due to interventions (e.g. antibiotic treatment).

To investigate if long-term treatment of paracetamol can be discontinued without no worsening on pain, health-related quality-of-life and level of function compared to continuing paracetamol treatment in patients aged 65 years or more.

Pain is the way our brain interprets certain bodily sensations. It is very difficult to describe or to put into words as perception and tolerance of pain varies widely between individuals. It is known that age, gender and past experience and memory of past experience all contribute to patients' feelings of discomfort and tolerance of pain, but the reason why some patients actually do not experience any pain at all post surgery is still unknown. Because pain affects every person at some point in their lives, it is of utmost importance that we can find more effective analgesic methods, and provide analgesia tailored to an individual's need as well as discovering new methods which may be able to identify those individuals who are more prone to suffering serious, or chronic pain. It has been proposed that epigenetic modifications may play a role in sensitivity to analgesia and response to trauma, such as post surgery. The effects of epigenetic changes on key genes and the role this plays in analgesia sensitivity and pain perception is deserving of further research. Epigenetics is a growing field of study in which there are genetic modifications that do not involve changes to base sequences in a gene, but that result nonetheless in changes to gene expression. It has long been known that changes in gene expression play an important role in the establishment of pain states. But it is not known whether a priming injury can induce lasting epigenetic marks which would result in an increase in both postoperative acute pain and the risk for chronic pain. Only by fully understanding these epigenetic mechanisms will we be able to offer better drugs for the treatment of pain, and to identify those at high risk of postoperative pain and postsurgical chronic pain. The purpose of this study is to determine whether severity of pain following surgical procedures, such as third molar surgery is related to baseline methylation status of the promoter region of IL-6 and TNF-α and changes in methylation status post surgery.

The proposed research topic will investigate the determinants of physical activity (PA) levels in patients with chronic pain. The aim of the research project is to quantify the self-reported and free-living physical activity levels in people with chronic pain. Describe and explore the characteristics and relationships of these participants in terms of pain severity, fear of movement, patterns of activity, anxiety and depression, and number and differing types of long term conditions and how these all correlate with PA levels. Explore PA levels of chronic pain patients and the correlation of psychosocial factors.