Effects of a low-pressure hyperbaric oxygen therapy on psychological constructs related to pain and quality of life in women with fibromyalgia: A randomized clinical trial.

BACKGROUND AND OBJECTIVES: Self-reported psychological variables related to pain have been posited as the major contributors to the quality of life of fibromyalgia (FM) women and should be considered when implementing therapeutic strategies among this population. The aim of this study was to explore the effect of low-pressure hyperbaric oxygen therapy (HBOT) on psychological constructs related to pain (i.e., pain catastrophism, pain acceptance, pain inflexibility, mental defeat) and quality of life in women with FM. METHODS: This was a randomized controlled trial. Thirty-three women with FM were randomly allocated to a low-pressure hyperbaric oxygen therapy group (HBOTG) (n=17), who received an 8-week intervention (5 sessions per week), and a control group (CG) (n=16). All women were assessed at baseline (T0) and upon completion of the study (T1) for self-perceived pain intensity, pain catastrophism, pain acceptance, pain inflexibility, mental defeat and quality of life. RESULTS: At T1, the HBOTG improved across all variables related to pain (i.e. self-perceived pain intensity, pain catastrophism, pain acceptance, pain flexibility, mental defeat) (p<0.05) and quality of life (p<0.05). In contrast, the CG showed no improvements in any variable. Furthermore, significant differences between the groups were found in quality of life (p<0.05) after the intervention. CONCLUSIONS: HBOT is effective at improving the psychological constructs related to pain (i.e. pain catastrophism, pain acceptance, pain flexibility, mental defeat) and quality of life among women with FM. Clinical Trial Link Clinical Trials gov identifier (NCT03801109).

Reduction of Chronic Primary Low Back Pain by Spinal Manipulative Therapy is Accompanied by Decreases in Segmental Mechanical Hyperalgesia and Pain Catastrophizing: A Randomized Placebo-controlled Dual-blind Mixed Experimental Trial.

Chronic primary low back pain (CPLBP) refers to low back pain that persists over 3 months, that cannot be explained by another chronic condition, and that is associated with emotional distress and disability. Previous studies have shown that spinal manipulative therapy (SMT) is effective in relieving CPLBP, but the underlying mechanisms remain elusive. This randomized placebo-controlled dual-blind mixed experimental trial (NCT05162924) aimed to investigate the efficacy of SMT to improve CPLBP and its underlying mechanisms. Ninety-eight individuals with CPLBP and 49 controls were recruited. Individuals with CPLBP received SMT (n = 49) or a control intervention (n = 49), 12 times over 4 weeks. The primary outcomes were CPLBP intensity (0-100 on a numerical rating scale) and disability (Oswestry Disability Index). Secondary outcomes included pressure pain thresholds in 4 body regions, pain catastrophizing, Central Sensitization Inventory, depressive symptoms, and anxiety scores. Individuals with CPLBP showed widespread mechanical hyperalgesia (P < .001) and higher scores for all questionnaires (P < .001). SMT reduced pain intensity compared with the control intervention (mean difference: -11.7 [95% confidence interval, -11.0 to -12.5], P = .01), but not disability (P = .5). Similar mild to moderate adverse events were reported in both groups. Mechanical hyperalgesia at the manipulated segment was reduced after SMT compared with the control intervention (P < .05). Pain catastrophizing was reduced after SMT compared with the control intervention (P < .05), but this effect was not significant after accounting for changes in clinical pain. Although the reduction of segmental mechanical hyperalgesia likely contributes to the clinical benefits of SMT, the role of pain catastrophizing remains to be clarified. PERSPECTIVE: This randomized controlled trial found that 12 sessions of SMT yield greater relief of CPLBP than a control intervention. These clinical effects were independent of expectations, and accompanied by an attenuation of hyperalgesia in the targeted segment and a modulation of pain catastrophizing.

Does Catastrophizing Predict Response to Treatment in Patients With Vestibular Disorders? A Prospective Cohort Study.

OBJECTIVE: Determine levels of catastrophizing in patients with vestibular disorders and prospectively evaluate their relationship with patient-reported outcome measures. STUDY DESIGN: Prospective cohort study. SETTING: Tertiary care neurotology vestibular disorders clinic. PATIENTS: Adult patients with various vestibular disorders. INTERVENTIONS: Patients were given the Dizziness Handicap Inventory (DHI) and the Dizziness Catastrophizing Scale (DCS) at a baseline visit and follow-up visit after treatment. MAIN OUTCOME MEASURES: Correlation studies were used to determine the relationships between DHI and DCS. Multivariable linear regression was performed to determine the relationship between DCS and DHI change with treatment, accounting for demographic variables. RESULTS: Forty-six subjects completed both the DHI and the DCS before and after treatment. Patients with higher baseline DCS scores had higher baseline DHI scores ( p < 0.001). There was a significant improvement in both DHI score ( p < 0.001) and DCS ( p < 0.001) at follow-up. Patients who had reduction in DCS scores during were more likely to show reduction in DHI scores ( p < 0.001). A subset of patients had a mindfulness-based stress reduction program included in their treatment. These patients had a greater reduction in both DCS and DHI scores at follow-up compared with those who received other treatments. CONCLUSIONS: Catastrophizing is associated with higher pretreatment DHI scores and worse treatment outcomes. Addressing dizziness catastrophizing may help improve vestibular outcomes.

Pain Psychology for Surgeons and Otolaryngologists.

Pain is one of the leading reasons that brings patients into health care facilities; yet, it often is left undertreated. The biopsychosocial model of pain, which recognizes that pain is multidimensional, explains the complexities that affect the pain experience and response to treatment. Inclusion of behavioral and psychological factors in medical and surgical evaluations can facilitate an optimal outcome. When pain no longer is acute but becomes chronic, access to psychotherapeutic interventions becomes necessary to improve course and prognosis. Techniques, such as psychoeducation, deep breathing, imagery, and addressing expectations and catastrophic beliefs, can be incorporated into medical and surgical practices.

A randomized clinical trial of mindfulness-based cognitive therapy for women with irritable bowel syndrome-Effects and mechanisms.

OBJECTIVE: Irritable bowel syndrome (IBS) is a chronic disorder of brain-gut interaction. Previous studies suggest that mindfulness could be therapeutic for IBS patients, however no study has evaluated the effects of mindfulness-based cognitive therapy adapted for patients with IBS (MBCT-IBS). A 6-week MBCT-IBS course was designed to reduce symptoms and increase quality of life. This study aimed to evaluate the effects of MBCT-IBS and to investigate its therapeutic mechanisms in a randomized controlled trial. METHOD: Sixty-seven female patients with IBS were randomized to MBCT-IBS (MG; n = 36) or a waitlist (WL; n = 31) control condition. Patients completed standardized self-report measures of IBS symptom severity, IBS quality of life, maladaptive illness cognitions (catastrophizing, visceral anxiety sensitivity) and mindfulness at baseline, after 2 treatment sessions, at posttreatment, and at 6-week follow-up. Self-referential processing of illness and health was measured with an implicit association test (IAT). RESULTS: The MG reported significantly greater reductions in IBS symptoms (p = .003) and improvements in quality of life (p < .001) at follow-up compared with the WL. Changes in visceral anxiety sensitivity and pain catastrophizing at posttreatment and reductions in the IAT-score after 2 sessions combined with increases in nonjudgmental awareness at posttreatment mediated reductions in IBS symptoms. CONCLUSIONS: MBCT-IBS has the potential to reduce IBS symptoms and increase quality of life. MBCT-IBS may exert its effect on IBS symptoms via reducing maladaptive illness cognitions and activating changes in self-processing (reducing biases in self-referent processing of illness and health and increasing nonjudgmental awareness). (PsycINFO Database Record (c) 2020 APA, all rights reserved).

Moderators of Mindfulness Meditation, Cognitive Therapy, and Mindfulness-Based Cognitive Therapy for Chronic Low Back Pain: A Test of the Limit, Activate, and Enhance Model.

This study examined psychosocial pain treatment moderation in a secondary analysis of a trial that compared cognitive therapy (CT), mindfulness-meditation (MM), and mindfulness-based cognitive therapy (MBCT) for chronic low back pain (CLBP). The Limit, Activate, and Enhance (LA&E) model of moderation provided a framework for testing a priori hypotheses. Adult participants (N = 69) with CLBP completed a pretreatment assessment of hypothesized moderators: pain catastrophizing, brain state as assessed by electroencephalogram, mindful observing, and nonreactivity. Outcomes were pain interference, characteristic pain intensity, physical function, and depression, assessed at pre- and post-treatment. Moderation analyses found significant interaction effects, specifically: 1) higher and lower baseline pain catastrophizing was associated with greater improvement in pain intensity in MM and MBCT, respectively; 2) higher baseline theta power was associated with greater improvement in depression in MBCT and interfered with response to CT; 3) lower baseline nonreactivity was associated with greater improvement in physical function in MM while higher nonreactivity was associated with greater improvement in MBCT. The findings support the possibility that different patients are more or less likely to benefit from various treatments. Theory-driven moderation research has the capacity to inform the development of patient-treatment matching algorithms to optimize outcome. PERSPECTIVE: This study presents preliminary findings from theory-driven tests of the moderators of mindfulness meditation, cognitive therapy, and mindfulness-based cognitive therapy for chronic low back pain. The results of such analyses may inform the understanding of for whom various evidence-based psychosocial pain treatments may engender the most meaningful benefits.

The clinical application of pain neuroscience, graded motor imagery, and graded activity with complex regional pain syndrome-A case report.

BACKGROUND: Chronic Regional Pain Syndrome (CRPS) is a condition that physical therapists may encounter in an outpatient orthopedic setting. In physical therapy (PT) treatment of CRPS addresses pain and the changes observed in the brain through the use of graded motor imagery (GMI). CASE DESCRIPTION: A 57-year-old female presented to an outpatient PT clinic with CRPS type 1. Complicating psychosocial factors such as kinesiophobia and catastrophization were present. The patient engaged in a treatment plan including GMI: pain neuroscience education (PNE), laterality training, motor imagery, and mirror training. As symptoms improved, graded functional exposure and functional restoration occurred. OUTCOMES: The patient was seen for a total of 26 visits over a 9-month period. FAAM measures exceeded reported clinically important change that was sustained at two-year follow-up. Long term outcomes showed no functional deficits related to her foot or ankle and minimal to no catastrophizing and fear avoidance behaviors. DISCUSSION: This case report showcases the use of GMI with a patient with CRPS type 1 in an outpatient orthopedic clinic. Clinicians may consider the use of GMI to progress a patient toward maximal functional gains.

Mindfulness and cognitive behavior therapy for provoked vestibulodynia: Mediators of treatment outcome and long-term effects.

OBJECTIVE: Provoked vestibulodynia (PVD) is a chronic vulvo-vaginal pain condition affecting 8% of premenopausal women. Cognitive-behavioral therapy (CBT) is effective in managing pain and associated sexual and psychological symptoms, and a recent study found group mindfulness-based cognitive therapy (MBCT) to be equivalent. Our goal was to examine the long-term outcomes of these treatments and to explore mediators of change. METHOD: Participants were 130 women diagnosed with PVD who had participated in a clinical trial comparing 8 weeks of group CBT to 8 weeks of group MBCT. Data were collected at pretreatment, posttreatment, and at 6- and 12-month follow-up periods. Outcomes focused on (a) pain with vaginal penetration, (b) pain elicited with a vulvalgesiometer, and (c) sex-related distress. Mediators of interest included pain acceptance (both pain willingness and activities engagement), self-compassion, self-criticism, mindfulness, decentering, and pain catastrophizing. RESULTS: All improvements in the 3 outcomes were retained at 12-month follow-up, with no group differences. Pain catastrophizing, decentering, and chronic pain acceptance (both scales) were mediators of improvement common to both MBCT and CBT. Changes in mindfulness, self-criticism, and self-compassion mediated improvements only in the MBCT group. CONCLUSIONS: Both MBCT and CBT are effective for improving symptoms in women with PVD when assessed 12 months later. The findings have implications for understanding common and potentially distinct pathways by which CBT and MBCT improve pain and sex-related distress in women with PVD. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

A Comparison of Mindfulness-Based Cognitive Therapy Vs Cognitive Behavioral Therapy for the Treatment of Provoked Vestibulodynia in a Hospital Clinic Setting.

INTRODUCTION: Chronic and distressing genito-pelvic pain associated with vaginal penetration is most frequently due to provoked vestibulodynia (PVD). Cognitive behavioral therapy (CBT) significantly reduces genital pain intensity and improves psychological and sexual well-being. In general chronic pain populations, mindfulness-based approaches may be as effective for improving pain intensity as CBT. AIM: To compare mindfulness-based cognitive therapy (MBCT) with CBT in the treatment of PVD. METHODS: To ensure power of 0.95 to find medium effect size or larger in this longitudinal design, we enrolled 130 participants. Of these, 63 were assigned to CBT (mean age 31.2 years), and 67 to MBCT (mean age 33.7 years). Data from all participants who completed baseline measures were analyzed, with intent-to-treat analyses controlling for years since diagnosis. MAIN OUTCOME MEASURES: Our primary outcome was self-reported pain during vaginal penetration at immediate post-treatment and at 6 months' follow-up. Secondary endpoints included pain ratings with a vulvalgesiometer, pain catastrophizing, pain hypervigilance, pain acceptance, sexual function, and sexual distress. RESULTS: There was a significant interaction between group and time for self-reported pain, such that improvements with MBCT were greater than those with CBT. For all other endpoints, both groups led to similar significant improvements, and benefits were maintained at 6 months. CLINICAL IMPLICATIONS: Mindfulness is a promising approach to improving self-reported pain from vaginal penetration and is as effective as CBT for several psychological endpoints. STRENGTH & LIMITATIONS: A strength of the present study was the robust sample size (n = 130 women) who had received confirmed clinical diagnoses of PVD. CONCLUSION: The present study showed mindfulness to be as effective for most pain- and sexuality-related endpoints in the treatment of PVD. Brotto LA, Bergeron S, Zdaniuk B, et al. A Comparison of Mindfulness-Based Cognitive Therapy Vs Cognitive Behavioral Therapy for the Treatment of Provoked Vestibulodynia in a Hospital Clinic Setting. J Sex Med 2019;16:909-923.

Pilot randomised controlled trial of a brief mindfulness-based intervention for those with persistent pain.

A pilot-randomised controlled trial (RCT) examined the effects of a brief mindfulness-based intervention (MBI) on persistent pain patients and assessed the feasibility of conducting a definitive RCT. A brief (15 min) mindfulness body-scan audio was compared with an active control administered in a clinic and then used independently over 1 month. Immediate effects of the intervention were assessed with brief measures of pain severity, distraction and distress. Assessments at baseline, 1 week and 1 month included pain severity and interference, mood, pain-catastrophizing, mindfulness, self-efficacy, quality of life and intervention acceptability. Of 220 referred patients, 147 were randomised and 71 completed all assessments. There were no significant immediate intervention effects. There were significant positive effects for ratings of intervention 'usefulness' at 1 week (p = 0.044), and pain self-efficacy at 1 month (p = 0.039) for the MBI group compared with control. Evidently, it is feasible to recruit persistent pain patients to a brief MBI study. Strategies are needed to maximise retention of participants.Trial registration Current controlled trials ISRCTN61538090. Registered 20 April 2015.

Treatment of Medial Medullary Infarction Using a Novel iNems Training: A Case Report and Literature Review.

Objective. We describe the case of a 66-year-old Japanese male patient who developed medial medullary infarction along with severe motor paralysis and intense numbness of the left arm, pain catastrophizing, and abnormal physical sensation. We further describe his recovery using a new imagery neurofeedback-based multisensory systems (iNems) training method. Clinical Course and Intervention. The patient underwent physical therapy for the rehabilitation of motor paralysis and numbness of the paralyzed upper limbs; in addition, we implemented iNems training using EEG activity, which aims to synchronize movement intent (motor imagery) with sensory information (feedback visual information). Results. Considerable improvement in motor function, pain catastrophizing, representation of the body in the brain, and abnormal physical sensations was accomplished with iNems training. Furthermore, iNems training improved the neural activity of the default mode network at rest and the sensorimotor region when the movement was intended. Conclusions. The newly developed iNems could prove a novel, useful tool for neurorehabilitation considering that both behavioral and neurophysiological changes were observed in our case.

Internet-delivered mindfulness for people with depression and chronic pain following spinal cord injury: a randomized, controlled feasibility trial.

STUDY DESIGN: Between-subjects, randomized controlled feasibility study. OBJECTIVES: Populations with reduced sensory and motor function are at increased risk of depression, anxiety and pain, and may be less geographically mobile. This study explored the efficacy and feasibility of web-based mindfulness training for people with spinal cord injury (SCI). SETTING: UK community sample. METHODS: Participants were randomly allocated to an 8-week online mindfulness intervention (N = 36), or to internet-delivered psychoeducation (N = 31). Depression symptom severity was the primary outcome. Secondary outcomes included anxiety, quality of life (QoL), pain perception, pain catastrophizing and mindfulness. Measures were taken before (T1), at completion of, (T2), and 3 months following the intervention (T3). RESULTS: At T2, ten participants discontinued mindfulness training, and five discontinued psychoeducation. Dropouts were of significantly older age. Nine participants were lost to follow-up. Mindfulness reduced depression significantly more than psychoeducation at T2 (mean difference = -1.50, 95% CI [-2.43, -0.58]) and T3 (mean difference = -2.34, 95% CI [-3.62, -1.10]). Anxiety, pain unpleasantness and catastrophizing were significantly reduced compared with psychoeducation. Total mindfulness scores, and all facets of mindfulness except observing were significantly higher following mindfulness training. At follow-up, reductions in anxiety and catastrophizing persisted. CONCLUSIONS: Internet-delivered mindfulness training offers unique benefits and is viable for people with reduced sensory awareness. Future work should explore the feasibility of combined education and mindfulness training. The use of brief interventions shows promise in maximizing participant retention.

Inhibition of Pain and Pain-Related Brain Activity by Heterotopic Noxious Counter-Stimulation and Selective Attention in Chronic Non-Specific Low Back Pain.

The aim of the present study was to assess inhibition of pain and somatosensory-evoked potentials (SEPs) by heterotopic noxious counter-stimulation (HNCS) and by selective attention in patients with chronic non-specific LBP. Seventeen patients and age/sex-matched controls were recruited (10 men, 7 women; mean age ±â€¯SD: 43.3 ±â€¯10.4 and 42.7 ±â€¯11.1, respectively). On average, patients with LBP reported pain duration of 7.6 ±â€¯6.5 years, light to moderate disability (19.3 ±â€¯5.7/100) and low clinical pain intensity (21.8 ±â€¯1.5/100), while pain catastrophizing, state and trait anxiety and depressive symptoms were not significantly different between groups (all p's >0.05). HNCS and selective attention had differential inhibitory effects on pain and SEP, but no difference was observed between groups. Across both groups, HNCS decreased pain (p = 0.06) as well as the N100 and the N150 components of SEP (p's <0.001), while selective attention only decreased pain (p < 0.01) and the N100 (p<0.001). In contrast, the P260 was decreased by HNCS only when attention was directed toward the HNCS stimulus (p<0.01). This indicates that patients with the characteristics described above do not show altered pain inhibitory mechanisms involved in HNCS and selective attention. Importantly, this experiment was carefully designed to control for non-specific effects associated with the repetition of the test stimulus and the effect of an innocuous counter-stimulation. It remains to be determined if these results hold for patients with severe LBP and psychological symptoms or whether symptom severity may be associated with pain inhibition deficits.

A cross-sectional survey of pain catastrophising and acupuncture use among breast cancer survivors.

INTRODUCTION: Treatment-related joint pain affects almost half of all women with breast cancer using aromatase inhibitors and is a major reason for terminating treatment. Although acupuncture is becoming an increasingly popular, evidence-based option for treating pain, little is known about the potential influence of psychological factors on acupuncture use. OBJECTIVE: We aimed to evaluate the association between pain catastrophising and use of acupuncture in breast cancer survivors experiencing arthralgia. METHODS: We conducted a cross-sectional survey of arthralgic breast cancer patients. Patients were asked if they had used acupuncture since their cancer diagnosis. The Pain Catastrophising Scale (PCS) was used to measure negative coping styles related to the experience of pain. We performed multiple logistic regression analysis to evaluate the relationship between pain catastrophising and acupuncture use, adjusting for covariates. RESULTS: Of the 424 participants, 69 (16%) reported use of acupuncture since their breast cancer diagnosis. In multivariate analyses, compared to those in the lowest PCS score tertile, patients with the highest PCS scores were more likely to have used acupuncture (p=0.03). In particular, patients with high levels of rumination (p=0.005) and magnification (p=0.008) were more likely to have used acupuncture. Helplessness was not associated with acupuncture use (p=0.23). CONCLUSIONS: High levels of pain catastrophising, and specifically the processes of rumination and magnification, were associated with greater acupuncture use. We believe this could have important implications for understanding which population is more likely to seek acupuncture treatment and how this alternative therapy could be better targeted to these patients.

Ten weeks of physical-cognitive-mindfulness training reduces fear-avoidance beliefs about work-related activity: Randomized controlled trial.

People with chronic musculoskeletal pain often experience pain-related fear of movement and avoidance behavior. The Fear-Avoidance model proposes a possible mechanism at least partly explaining the development and maintenance of chronic pain. People who interpret pain during movement as being potentially harmful to the organism may initiate a vicious behavioral cycle by generating pain-related fear of movement accompanied by avoidance behavior and hyper-vigilance.This study investigates whether an individually adapted multifactorial approach comprised of biopsychosocial elements, with a focus on physical exercise, mindfulness, and education on pain and behavior, can decrease work-related fear-avoidance beliefs.As part of a large scale 10-week worksite randomized controlled intervention trial focusing on company initiatives to combat work-related musculoskeletal pain and stress, we evaluated fear-avoidance behavior in 112 female laboratory technicians with chronic neck, shoulder, upper back, lower back, elbow, and hand/wrist pain using the Fear-Avoidance Beliefs Questionnaire at baseline, before group allocation, and again at the post intervention follow-up 10 weeks later.A significant group by time interaction was observed (P < 0.05) for work-related fear-avoidance beliefs. The between-group difference at follow-up was -2.2 (-4.0 to -0.5), corresponding to a small to medium effect size (Cohen's d = 0.30).Our study shows that work-related, but not leisure time activity-related, fear-avoidance beliefs, as assessed by the Fear-avoidance Beliefs Questionnaire, can be significantly reduced by 10 weeks of physical-cognitive-mindfulness training in female laboratory technicians with chronic pain.

Exposure-based cognitive behavioral therapy for irritable bowel syndrome. A single-case experimental design across 13 subjects.

Irritable bowel syndrome (IBS) is a highly prevalent disorder with a significant impact on quality of life. The presence of psychological symptoms in IBS patients such as catastrophic worry and behavioral avoidance suggests the possible efficacy of cognitive behavioral interventions. Exposure-based cognitive behavioral therapy (CBT) has proven to be a promising approach but has only been investigated in a few studies and mainly via the Internet. Therefore, the aims of this study were to extend and replicate previous findings and to evaluate whether an individual, face-to-face, exposure-based CBT leads to improvement in gastrointestinal symptoms, pain catastrophizing, avoidance behavior and quality of life in IBS patients. Thirteen patients with IBS according to Rome III criteria participated in a single-case experimental study using a five-week baseline and a subsequent twelve-session intervention phase focusing on psycho-education, mindfulness and in vivo exposure. Standardized measurement of gastrointestinal symptoms, pain catastrophizing, avoidance behavior and quality of life was conducted weekly during baseline as well as intervention phase and at six-month follow-up. Results showed that over 70% of patients improved significantly on gastrointestinal symptoms, pain catastrophizing, and quality of life. Effects on avoidance behavior were modest. These results strengthen and extend earlier findings and provide further support for the efficacy of exposure-based strategies for IBS.

Processes of change in Acceptance and Commitment Therapy and Applied Relaxation for long-standing pain.

BACKGROUND: The utility of cognitive behavioural (CB) interventions for chronic pain has been supported in numerous studies. This includes Acceptance and Commitment Therapy (ACT), which has gained increased empirical support. Previous research suggests that improvements in pain catastrophizing and psychological inflexibility are related to improvements in treatment outcome in this type of treatment. Although a few studies have evaluated processes of change in CB-interventions, there is a particular need for mediation analyses that use multiple assessments to model change in mediators and outcome over time, and that incorporate the specified timeline between mediator and outcome in the data analytic model. METHODS: This study used session-to-session assessments to evaluate if psychological inflexibility, catastrophizing, and pain intensity mediated the effects of treatment on pain interference. Analyses were based on data from a previously conducted randomized controlled trial (n = 60) evaluating the efficacy of ACT and Applied Relaxation (AR). A moderated mediation model based on linear mixed models was used to analyse the data. RESULTS: Neither catastrophizing nor pain intensity mediated changes in pain interference for any of the treatments. In contrast, psychological inflexibility mediated effects on outcome in ACT but not in AR. CONCLUSIONS: Results add to previous findings illustrating the role of psychological inflexibility as a mediator in ACT.

A Mechanism-Based Approach to the Management of Osteoarthritis Pain.

Pain from osteoarthritis (OA) affects millions of people worldwide, yet treatments are limited to acetaminophen, NSAIDs, physical therapy, and ultimately, surgery when there is significant disability. In recent years, our understanding of pain pathways in OA has developed considerably. Though joint damage and inflammation play a significant role in pain generation, it is now understood that both central and peripheral nervous system mechanisms exacerbate symptoms. Evolving management strategies for OA address central factors (e.g., sleep difficulties, catastrophizing, and depression) with treatments such as cognitive behavioral therapy and exercise. In addition, emerging data suggest that antibodies against peripheral signaling neuropeptides, such as nerve growth factor-1 (NGF-1), may significantly alleviate pain. However, concerns regarding potential adverse effects, such as rapidly progressive OA, still remain. A nuanced understanding is essential if we are to make headway in developing more effective treatments for OA.

Comparison of an Online Mindfulness-based Cognitive Therapy Intervention With Online Pain Management Psychoeducation: A Randomized Controlled Study.

BACKGROUND: This study tested the effectiveness of a computerized mindfulness-based cognitive therapy intervention compared with computerized pain management psychoeducation in a randomized study. METHODS: Using an intention-to-treat approach, 124 adult participants who reported experiencing pain that was unrelated to cancer and of at least 6 months duration were randomly assigned to computerized mindfulness-based cognitive therapy ("Mindfulness in Action" [MIA]) or pain management psychoeducation programs. Data were collected before and after the intervention and at 6-month follow-up. RESULTS: Participants in both groups showed equivalent change and significant improvements on measures of pain interference, pain acceptance, and catastrophizing from pretreatment to posttreatment and the improvements were maintained at follow-up. Average pain intensity also reduced from baseline to posttreatment for both groups, but was not maintained at follow-up. Participants in both groups reported increases in subjective well-being, these were more pronounced in the MIA than the pain management psychoeducation group. Participants in the MIA group also reported a greater reduction in pain "right now," and increases in their ability to manage emotions, manage stress, and enjoy pleasant events on completion of the intervention. The changes in ability to manage emotions and stressful events were maintained at follow-up. CONCLUSIONS: The results of the study provide evidence that although there were equivalent changes across outcomes of interest for participants in both conditions over time, the MIA program showed a number of unique benefits. However, the level of participant attrition in the study highlighted a need for further attention to participant engagement with online chronic pain programs.

A preliminary RCT of a mind body skills based intervention addressing mood and coping strategies in patients with acute orthopaedic trauma.

OBJECTIVE: To test the acceptability and feasibility of a mind body skills-based intervention (RRCB) and estimate its preliminary effect in reducing disability and pain intensity as compared to standard care (SC) in patients with acute musculoskeletal trauma. DESIGN: Randomised controlled trial. SETTING: Level I trauma centre. PATIENTS: Adult patients with acute fractures at risk for chronic pain and disability based on scores on two coping with pain measures who presented to an orthopedic trauma center and met inclusion and exclusion criteria. INTERVENTION: Participants were randomied to either RRCB with SC or SC alone. MAIN OUTCOME MEASUREMENT: Disability (short musculoskeletal functional assessment, SMFA) and pain (Numerical Analogue Scale). SECONDARY OUTCOME MEASURES: coping strategies (Pain Catastrophizing Scale, PCS and Pain Anxiety Scale, PAS) and mood (CESD Depression and PTSD checklist). RESULTS: Among the 50 patients consented, two did not complete the initial assessment. Of these, the first four received the intervention as part of an open pilot and the next 44 were randomised (24 RRCBT and 20 UC) and completed initial assessment. We combined the patients who received RRCB into one group, N=28. Of the entire sample, 34 completed time two assessments (24 RRCBT and 10 SC). The RRCB proved to be feasible and accepted (86% retention, 28 out of 24 completers). Analyses of covariance ANCOVA showed a significant (p<05) improvement and large effect sizes for all time two main study variables (.2-.5) except pain with activity where the effect size was medium (.08). Improvement for pain at rest was not significantly higher in the RRCB as compared to the control, for a small effect size (.03). CONCLUSION: The RRCB is feasible, acceptable and potentially efficacious. LEVEL OF EVIDENCE: Level 1 prognostic.