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Clinical Trial Summary

Seventy-eight percent of the population declares being concerned by pain, directly or indirectly. Chronic pain, defined as pain that has lasted for more than three months, affects more than one third of the French population. The national survey of the French Society for the Study and Treatment of Pain (SFETD), conducted in 2009, reveals that the most widespread chronic pain is low back pain (20%). Pain not only affects the body, but also destroys the person who endures it. A comparative study by Attal et al. carried out on a sample of 1,591 chronic pain sufferers and 1,237 non pain sufferers shows a major impact of pain on the individual's quality of life (SF12), sleep (MOS sleep) and anxiety and depression (HADS). The 2009 report of the French National Authority for Health (HAS) shows that chronic pain generates a significant societal cost. Low back pain is the leading cause of activity limitation in people aged 45 to 65, and the third leading cause of chronic disability. It is the leading cause of disability in people under 45 years of age, and the leading cause of work stoppage and occupational disease. The reference tool for assessing pain is currently the Visual Analogue Scale (VAS). However, several factors considerably limit the relevance of an exclusive use of this tool: - For the patient: the intensity of pain is objectively influenced by many parameters such as the time of day, stress, position, duration of evolution, mechanical or "neuropathic" character, paroxysms, etc. These are all elements that objectively disrupt the evaluation performed by the VAS. When the subjective and emotional dimension is included in these elements, the cloudiness of "true" perception of such a sensation increases even more. - Difficulties of evaluation for the carer: carers are therefore confronted with a lack of relevance of objective pain evaluation tools, and researchers have to deal with data that are often not very reproducible. A fortiori, the second problem arising from this concerns the difficulty of comparing the effectiveness of different therapeutic strategies. The VAS cannot, for example, take into account the pain dominance in the case of multi-site pain, nor the surface area of the pain zone or even less its typology or topology. This information is however essential to determine the choice of the most appropriate therapeutic strategy. - The difficulties of evaluation for the health care system: in fact, beyond the therapeutic wandering imposed on certain patients on a "micro" scale, it must be considered that this randomness of evaluation has an impact on the entire health care system. When a decision has to be made to reimburse a particular expensive drug or implantable medical device for pain relief, this reflection has to be extended to the "macro" level. This review thus reveals a threefold need for innovation in pain assessment: for the patient, for the caregiver and for the healthcare system. To overcome the limitations of the VAS, the PRISMATICS team has developed a triply patented computerized tactile mapping system. It allows to take into account the objective parameters of pain intensity and surface in a given individual, in a reliable, reproducible and quantitative way. The Neuro-Mapping Tool: its purpose is to evaluate very precisely the extent of the patient's painful surface at a given moment. . This prospective study aims to optimize the care pathway and to introduce rationalization and objectivity in the evaluation of therapies proposed to patients. This study will help us to test the following hypotheses: - Sociodemographic, psychological, and physiological factors are associated with patient response to the standard care pathway offered to patients with low back pain. - The different assessment tools are correlated with their evolution. - The effect of different therapies varies according to patient characteristics.


Clinical Trial Description

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Study Design


Related Conditions & MeSH terms


NCT number NCT05209854
Study type Observational
Source Poitiers University Hospital
Contact Philippe RIGOARD, MD,PhD
Email [email protected]
Status Not yet recruiting
Phase
Start date April 2022
Completion date April 2025

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