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Attention-deficit/hyperactivity disorder (ADHD) has been reported to be associated with primary chronic pain syndromes, such as fibromyalgia, migraine, and chronic low back pain. Although idiopathic orofacial pain (IOP) is classified as burning mouth syndrome or persistent idiopathic facial or dentoalveolar pain and as a primary chronic pain, the association between IOP and ADHD has not been investigated. This retrospective cohort study investigated the severity of ADHD symptoms measured using the ADHD scale and the effects of treatment using ADHD drugs and the dopamine system stabilizer aripiprazole. The participants were 25 consecutive patients with refractory IOP referred to a psychiatrist and diagnosed with coexisting ADHD according to the Diagnostic and Statistical Manual of Mental Disorders-5. The ADHD scale scores were higher in patients with intractable IOP than those in the general population. Pharmacotherapy used in this study led to clinically significant improvements in pain, anxiety/depression, and pain catastrophizing. Intractable IOP and ADHD were shown to be associated. In the future, screening and pharmacotherapy for ADHD should be considered in the treatment of intractable IOP., (© 2023. The Author(s).)

Background: Many self-report scales have been developed. Among them, are those clinically useful scales for quantifying chronic pain (such as the Numeric Rating Scale), which are useful for determining the effectiveness of treatment, and multifaceted and comprehensive pain assessment scales that are used to determine therapeutic strategies. The representative measure of the latter is the West Haven Yale Multidimensional Pain Inventory (WHY-MPI), which constitutes a system for classifying patients with chronic pain termed the multiaxial assessment of pain (MAP), proposed by Turk and Rudy., Objectives: This study aimed to evaluate the psychometric characteristics of the Japanese version of the MPI (MPI-J)., Study Design: Cross-sectional study., Setting: Specialized Pain Management Center at Hoshi General Hospital., Methods: We assessed the reliability and validity of the MPI-J in 100 Japanese patients with chronic musculoskeletal pain. Internal consistency was assessed using Cronbach's α coefficient for reliability. Regarding the convergent and discriminant validities, we examined the intercorrelations among the 9 subscales of the MPI-J, and the MPI-J intercorrelation was compared with the other language versions. Regarding criterion-related validity, the correlation coefficients between the MPI-J and some variables such as pain, mood, and quality of life were examined., Results: The subscales of the MPI-J demonstrated acceptable reliability coefficients (0.75-0.95). Regarding the intercorrelation between the MPI-J variables and criterion-related validity, previous study results of versions in other languages were also confirmed in this study., Limitations: This study has some limitations. First, in this study, the analyses performed did not take into consideration the presence or absence of a diagnosis of neuropathic pain. Second, our study sample size was small, and the subjects were intractable cases referred to our pain center due to difficulty in treatment at many medical institutions. Therefore, the results of this study should be interpreted as a survey at a specialized medical institution where many intractable cases are referred. Third, it should be noted that a stronger association between the items of each scale may have been shown because the study was conducted on intractable cases than if it was conducted in general outpatient clinics., Conclusion: The study findings support the applicability of the MPI-J as a clinical assessment scale in Japanese patients with chronic musculoskeletal pain.

Depression is a relevant risk factor for low back pain and is associated with the outcomes of low back pain. Depression also often overlaps with somatisation. As previous studies have suggested that somatisation or a higher somatic symptom burden has a role in the outcomes of low back pain, the aim of the present cross-sectional study was to examine whether somatic symptom burden was associated with health-related quality of life in individuals with chronic low back pain independent of depression. We analyzed internet survey data on physical and mental health in Japanese adults aged 20-64 years with chronic low back pain (n = 3,100). Health-related quality of life was assessed using the EuroQol five dimensions (EQ-5D) questionnaire. Somatic symptom burden and depression were assessed using the Somatic Symptom Scale-8 (SSS-8) and the Patient Health Questionnaire-2 (PHQ-2), respectively. SSS-8 score was categorized as no to minimal (0-3), low (4-7), medium (8-11), high (12-15), and very high (16-32). The association between SSS-8 and EQ-5D was examined using linear regression models, adjusting for depression and other covariates, including age, sex, BMI, smoking, marital status, education, exercise, employment, and the number of comorbid diseases. A higher somatic symptom burden was significantly associated with a lower health-related quality of life independent of depression and the number of comorbid diseases (regression coefficient = 0.040 for SSS-8 high vs. very high and 0.218 for non to minimal vs. very high, p trend <0.0001). In conclusion, somatic symptom burden might be important for the health-related quality of life of individuals with chronic low back pain.

BACKGROUND: Lumbopelvic movement patterns during prone hip extension has been proposed as a clinical screening method for trunk muscle dysfunction in patients with chronic low back pain (CLBP). However, correlations between trunk muscle onset and pelvic kinematics have not been investigated. OBJECTIVE: To examine the correlation between trunk muscle onset and pelvic kinematics during prone hip extension in participants with CLBP. METHODS: Fifteen patients with CLBP and 15 healthy individuals participated. We evaluated the muscle activities of the lumbar multifidus, the longissimus, and the semitendinosus via electromyogram and the displacement angles of the pelvic tilt, oblique and rotation. RESULTS: The onset of the multifidus at the ipsilateral side of hip extension was significantly delayed in the patients with CLBP compared to the control group (P < 0.001). The onset of the ipsilateral multifidus in the control group was significantly correlated with increased anterior pelvic tilt angle (P = 0.019, r = 0.597), whereas no significant correlation was observed in the CLBP group (P = 0.810, r = - 0.068). CONCLUSION: The results suggest that pelvic kinematics during prone hip extension does not predict the delayed trunk muscle onset in patients with CLBP. [ABSTRACT FROM AUTHOR]

Core exercises on an unstable surface increase trunk muscle activity, especially for local muscle groups. Therefore, there is a possibility that exercises on an unstable surface would be effective in the rehabilitation of non-specific chronic low back pain (NSCLBP). The present study assessed trunk muscle activities during bridge exercise on the floor and two kinds of unstable surfaces, i.e., a balance ball and the BOSU, for individuals with and without NSCLBP. This study enrolled 17 and 18 young participants with and without NSCLBP, respectively. In the balance ball condition, both groups showed a significant increase in erector spinae activity compared to the floor condition, and the increase in activity was significantly greater in the NSCLBP group than in the control group (p = 0.038). On the other hand, neither group showed significant changes in trunk muscle activities in the BOSU condition compared to those in the floor condition. The control group showed a significant increase in internal oblique/transversus abdominis activity under the balance ball condition (p = 0.020), whereas there were no significant changes in these muscle activities between the balance ball and floor conditions in the NSCLBP group. The present study showed that participants with NSCLBP significantly increased muscle activity of the erector spinae, one of the global back muscles, on the balance ball in spite of small effects on muscle activity of the internal oblique/transversus abdominis, which is one of the local abdominal muscles. Therefore, attention should be paid to the application of bridge exercises on the balance ball for individuals with NSCLBP. [ABSTRACT FROM AUTHOR]

John Fitzgerald Kennedy (JFK), the 35th President of the USA, had chronic low back pain deemed to be centralized pain. Reportedly, attention‐deficit/hyperactivity disorder (ADHD) could associate with centralized pain. Based on his biographies, JFK could have had ADHD, a plausible cause of pain that afflicted him. [ABSTRACT FROM AUTHOR]

BACKGROUND: Because regular visits to distant hospitals may be a burden to patients, both in terms of time and cost, some patients with chronic musculoskeletal pain may discontinue multidisciplinary pain treatment, unable to maintain motivation to attend. OBJECTIVE: To evaluate and compare the pre-program characteristics of patients who dropped out and patients who continued treatment, thereby clarifying the characteristics of patients at risk of dropping out. METHODS: A multidisciplinary pain management treatment program was implemented for patients at the Pain Management Center, Hoshi General Hospital. From April 2015 to March 2018, 23 patients participated in the program. Twelve of the 23 patients lived outside the prefecture where the hospital is located. Of these 12 patients, five completed the program, while seven did not. We compared the dropout and continuation groups in terms of patient characteristics, pain severity, pain-related psychosocial factors, and quality of life. RESULTS: We found significant differences (p < 0.05) in median age, Japanese Orthopaedic Association Back Pain Evaluation Questionnaire walking ability dysfunction score, and Roland-Morris Disability Questionnaire score. CONCLUSIONS: The characteristics of patients who dropped out were older age, walking ability dysfunction, and low quality of life associated with low back pain. [ABSTRACT FROM AUTHOR]

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. [ABSTRACT FROM AUTHOR]

Introduction: Multidisciplinary pain management is a useful method to treat chronic musculoskeletal pain. Few facilities in Japan administer a multidisciplinary pain management program, especially an inpatient program. Therefore, we implemented a multidisciplinary pain management program in our hospital based on biopsychosocial factors guided by the recommendations of the International Association for the Study of Pain. The purpose of this study is to describe our inpatient pain management program for Japanese patients, which uses the biopsychosocial method of pain self-management. Materials and methods: Fourteen patients with intractable chronic musculoskeletal pain, who were implemented a multidisciplinary pain management program in our hospital, were studied using the evaluation of the pain and associated factors and physical function. Results: Significant improvement in outcomes were seen in the brief pain inventory, the pain catastrophizing scale (rumination, magnification, and helplessness), the pain disability assessment scale, the hospital anxiety and depression scale (anxiety and depression), the pain self-efficacy questionnaire, the EuroQol five dimensions questionnaire, and muscle endurance and physical fitness. We found no statistically significant differences in static flexibility or walking ability. Conclusion: We developed an inpatient chronic pain management program for Japanese patients. Our results suggest that our program improves chronic musculoskeletal pain coping mechanisms, and that the program can improve patients' quality of life and some physical function. This inpatient pain management program is being expanded to better help intractable chronic musculoskeletal pain patients. [ABSTRACT FROM AUTHOR]