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      Journal of Pain Research (submit here)

      This international, peer-reviewed Open Access journal by Dove Medical Press focuses on reporting of high-quality laboratory and clinical findings in all fields of pain research and the prevention and management of pain. Sign up for email alerts here.

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      Is Open Access

      Multidisciplinary pain management program for patients with chronic musculoskeletal pain in Japan: a cohort study

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          Abstract

          Introduction

          Multidisciplinary pain management is a useful method for treating chronic musculoskeletal pain. Currently, few facilities in Japan offer multidisciplinary pain treatment, especially in the inpatient setting. We implemented a multidisciplinary pain management program based on International Association for the Study of Pain recommendations. This study described our initial efforts in implementing the program, and reported 3- and 6-month follow-up results.

          Materials and methods

          Our pain management team included orthopedic surgeons, psychiatrists, nurses, physical therapists, clinical psychologists, pharmacists, and nutritionists. The 3-week inpatient pain management program comprised exercise therapy, psychotherapy, and patient education. We evaluated patients using the Brief Pain Inventory (BPI), Pain Catastrophizing Scale (PCS), Pain Disability-Assessment Scale (PDAS), Hospital Anxiety and Depression Scale (HADS), Pain Self-Efficacy Questionnaire (PSEQ), EuroQol Five Dimensions (EQ-5D), and physical examinations (flexibility, muscle endurance, walking ability, and physical fitness). Statistical analyses were performed using paired t-tests and Wilcoxon matched-pairs signed-rank sum tests with Bonferroni correction after the Friedman test.

          Results

          Data for 23 patients were analyzed before and immediately after the program. Statistically significant improvements were seen in BPI, PCS, PDAS, HADS, PSEQ, EQ-5D, flexibility, muscle endurance, walking ability, and physical fitness. Eight patients were also assessed 3 and 6 months after the program. PCS (rumination and helplessness) scores and flexibility showed significant improvement at 3 and 6 months. Significant improvement was seen in PDAS and HADS (anxiety) scores and muscle endurance at 6 months, and in PSEQ scores immediately and at 3 and 6 months.

          Conclusion

          Our inpatient pain management program can improve patients’ physical function and ability to cope with chronic musculoskeletal pain, which supports improved quality of life. Our program is currently being expanded to better assist patients with chronic musculoskeletal pain.

          Most cited references22

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          The West Haven-Yale Multidimensional Pain Inventory (WHYMPI).

          The complexity of chronic pain has represented a major dilemma for clinical researchers interested in the reliable and valid assessment of the problem and the evaluation of treatment approaches. The West Haven-Yale Multidimensional Pain Inventory (WHYMPI) was developed in order to fill a widely recognized void in the assessment of clinical pain. Assets of the inventory are its brevity and clarity, its foundation in contemporary psychological theory, its multidimensional focus, and its strong psychometric properties. Three parts of the inventory, comprised of 12 scales, examine the impact of pain on the patients' lives, the responses of others to the patients' communications of pain, and the extent to which patients participate in common daily activities. The instrument is recommended for use in conjunction with behavioral and psychophysiological assessment strategies in the evaluation of chronic pain patients in clinical settings. The utility of the WHYMPI in empirical investigations of chronic pain is also discussed.
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            Descending pain modulation and chronification of pain.

            Chronic pain is an important public health problem that negatively impacts quality of life of affected individuals and exacts an enormous socio-economic cost. Currently available therapeutics provide inadequate management of pain in many patients. Acute pain states generally resolve in most patients. However, for reasons that are poorly understood, in some individuals, acute pain can transform to a chronic state. Our understanding of the risk factors that underlie the development of chronic pain is limited. Recent studies have suggested an important contribution of dysfunction in descending pain modulatory circuits to pain 'chronification'. Human studies provide insights into possible endogenous and exogenous factors that may promote the conversion of pain into a chronic condition. Descending pain modulatory systems have been studied and characterized in animal models. Human brain imaging techniques, deep brain stimulation and the mechanisms of action of drugs that are effective in the treatment of pain confirm the clinical relevance of top-down pain modulatory circuits. Growing evidence supports the concept that chronic pain is associated with a dysregulation in descending pain modulation. Disruption of the balance of descending modulatory circuits to favour facilitation may promote and maintain chronic pain. Recent findings suggest that diminished descending inhibition is likely to be an important element in determining whether pain may become chronic. This view is consistent with the clinical success of drugs that enhance spinal noradrenergic activity, such as serotonin/norepinephrine reuptake inhibitors (SNRIs), in the treatment of chronic pain states. Consistent with this concept, a robust descending inhibitory system may be normally engaged to protect against the development of chronic pain. Imaging studies show that higher cortical and subcortical centres that govern emotional, motivational and cognitive processes communicate directly with descending pain modulatory circuits providing a mechanistic basis to explain how exogenous factors can influence the expression of chronic pain in a susceptible individual. Preclinical studies coupled with clinical pharmacologic and neuroimaging investigations have advanced our understanding of brain circuits that modulate pain. Descending pain facilitatory and inhibitory circuits arising ultimately in the brainstem provide mechanisms that can be engaged to promote or protect against pain 'chronification'. These systems interact with higher centres, thus providing a means through which exogenous factors can influence the risk of pain chronification. A greater understanding of the role of descending pain modulation can lead to novel therapeutic directions aimed at normalizing aberrant processes that can lead to chronic pain.
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              The fear-avoidance model of musculoskeletal pain: current state of scientific evidence.

              Research studies focusing on the fear-avoidance model have expanded considerably since the review by Vlaeyen and Linton (Vlaeyen J. W. S. & Linton, S. J. (2000). Fear-avoidance and its consequences in chronic musculoskeletal pain: a state of the art. Pain, 85(3), 317--332). The fear-avoidance model is a cognitive-behavioral account that explains why a minority of acute low back pain sufferers develop a chronic pain problem. This paper reviews the current state of scientific evidence for the individual components of the model: pain severity, pain catastrophizing, attention to pain, escape/avoidance behavior, disability, disuse, and vulnerabilities. Furthermore, support for the contribution of pain-related fear in the inception of low back pain, the development of chronic low back pain from an acute episode, and the maintenance of enduring pain, will be highlighted. Finally, available evidence on recent clinical applications is provided, and unresolved issues that need further exploration are discussed.
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                Author and article information

                Journal
                J Pain Res
                J Pain Res
                JPR
                jpainres
                Journal of Pain Research
                Dove
                1178-7090
                21 August 2019
                2019
                : 12
                : 2563-2576
                Affiliations
                [1 ]Department of Pain Medicine, Fukushima Medical University School of Medicine , Fukushima 9601295, Japan
                [2 ]Pain Management Center, Hoshi General Hospital , Koriyama 963-8501, Japan
                Author notes
                Correspondence: Naoto TakahashiDepartment of Pain Medicine, Fukushima Medical University School of Medicine , 1 Hikarigaoka, Fukushima960-1295, JapanTel +81 24 547 1964Fax +81 24 547 1966Email naoto-t@fmu.ac.jp
                Article
                212205
                10.2147/JPR.S212205
                6708881
                31686898
                652c628c-119e-4556-8c06-4657221a5915
                © 2019 Takahashi et al.

                This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License ( http://creativecommons.org/licenses/by-nc/3.0/). By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms ( https://www.dovepress.com/terms.php).

                History
                : 14 April 2019
                : 02 August 2019
                Page count
                Figures: 3, Tables: 4, References: 33, Pages: 14
                Categories
                Original Research

                Anesthesiology & Pain management
                chronic musculoskeletal pain,multidisciplinary pain treatment,biopsychosocial model,inpatient pain management program

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