Early Changes in Pain Acceptance Predict Pain Outcomes in Interdisciplinary Treatment for Chronic Pain

Mechanisms in psychosocial treatments of chronic pain: What does the evidence tell us?

The study of mechanisms is vital for validating theories on which psychosocial chronic pain treatments are founded, can help distinguish active ingredients from inert or redundant ones, and can justify people devoting time, energy and resources needed to participate in treatment procedures. Evidence for links between putative mechanisms and outcomes is reviewed following criteria of association, temporal precedence and specificity. Although changes in mechanism factors during treatment appear related to outcome changes and such changes may precede and predict outcome change, evidence for specificity - does a treatment work primarily via theoretically-specified mechanisms - has little support. Instead, most evidence suggests that psychosocial pain treatments engage a discrete set of shared but essential mechanisms. The continuing search for mechanisms (and new treatments) may need to come to terms with evidence indicating that common features are more important than distinct ones and that conceptual models embracing these shared mechanisms are critical to advance the field.

Development and validation of a nomogram combining pain score with laboratory indicators for predicting persistent organ failure in acute pancreatitis: a retrospective cohort study

Background

Acute pancreatitis is an inflammatory disease that can lead to persistent organ failure (POF), which is associated with increased morbidity and mortality. Early prediction of POF in AP can significantly improve patient outcomes.

Objective

To develop and validate a nomogram that combines pain score with laboratory indicators for predicting POF in patients with AP.

Methods

A retrospective cohort study was conducted, including patients diagnosed with AP. Pain score and laboratory indicators were collected within the first 24 h of admission. A nomogram was developed using logistic regression models and validated in a separate cohort.

Results

There were 807 patients in the training cohort and 375 patients in the internal validation cohort.Multivariate logistic regression demonstrated that pain score, serum creatinine, hematocrit, serum calcium, and serum albumin were independent risk factors for the incidence of POF in patients with AP. The area under the curve of the nomogram constructed from the above factors were 0.924, respectively. The model demonstrated good calibration and discrimination in both the development and validation cohorts.

Conclusion

The nomogram had a good performance in predicting POF in patients with AP and can be used to guide clinical decision-making.

Pain Acceptance Among Retired National Football League Athletes: Implications for Clinical Intervention

Over 80% of National Football League (NFL) retirees experience daily pain. Pain acceptance is an important psychological construct implicated in the intensity of chronic pain, though these findings have not been extended to NFL retirees. Therefore, the current study examined the association between pain acceptance and pain intensity among former NFL athletes. NFL retirees (N = 90) recruited from 2018 to 2019 completed questionnaires that assessed pain, substance use, and NFL career information. Multiple linear regression examined the association between current pain acceptance and pain intensity while adjusting for other risk factors of pain. NFL retirees reported average scores of 33.31 (SD = 10.00), and 2.18 (SD = 2.40) on measures of pain acceptance and pain intensity, respectively. After covariate adjustment, greater pain acceptance (β = -0.538, p < .001) was associated with lower pain intensity. These findings can further inform the behavioral and mental health care of retired NFL athletes.

Depression predicts chronic pain interference in racially diverse, income-disadvantaged patients

BACKGROUND

Chronic pain is one of the most common reasons adults seek medical care in the US, with prevalence estimates ranging from 11% to 40%. Mindfulness meditation has been associated with significant improvements in pain, depression, physical and mental health, sleep, and overall quality of life. Group medical visits are increasingly common and are effective at treating myriad illnesses, including chronic pain. Integrative Medical Group Visits (IMGV) combine mindfulness techniques, evidence based integrative medicine, and medical group visits and can be used as adjuncts to medications, particularly in diverse underserved populations with limited access to non-pharmacological therapies.

OBJECTIVE AND DESIGN

The objective of the present study was to use a blended analytical approach of machine learning and regression analyses to evaluate the potential relationship between depression and chronic pain in data from a randomized clinical trial of IMGV in diverse, income disadvantaged patients suffering from chronic pain and depression.

METHODS

The analytical approach used machine learning to assess the predictive relationship between depression and pain and identify and select key mediators, which were then assessed with regression analyses. It was hypothesized that depression would predict the pain outcomes of average pain, pain severity, and pain interference.

RESULTS

Our analyses identified and characterized a predictive relationship between depression and chronic pain interference. This prediction was mediated by high perceived stress, low pain self-efficacy, and poor sleep quality, potential targets for attenuating the adverse effects of depression on functional outcomes.

CONCLUSIONS

In the context of the associated clinical trial and similar interventions, these insights may inform future treatment optimization, targeting, and application efforts in racialized, income disadvantaged populations, demographics often neglected in studies of chronic pain.

TRIAL REGISTRATION

NCT from clinicaltrials.gov: 02262377.

Lipoedema and Pain: What is the role of the psyche? – Results of a pilot study with 150 patients with Lipoedema

Introduction The present exploratory study is the first so far to investigate the psychological stress in the period before the development of pain symptoms typical for lipoedema.

Methods 150 patients diagnosed with lipoedema syndrome were questioned in semi-structured interviews about psychological stress and were diagnosed with psychological disorders according to ICD-10 criteria. The development of the symptoms typical for lipoedema was recorded in a second interview. Both interviews were blended together in collaboration with the patients, this means Lipoedema-associated pain and psychological stress were related to time.

Result Exactly 80 % of the patients diagnosed with lipedema show a high level of psychological distress immediately before the onset of lipedema-associated symptoms! In this study, mental distress was defined as the presence of a manifest mental disorder (ICD 10 F diagnosis) such as Depression, eating disorder or post-traumatic stress disorder and/or serious psychological distress such as burnout syndrome or chronic stress.

Summary These results contradict a widespread statement that all psychological problems of patients with the diagnosis lipoedema syndrome are caused solely by lipoedema, that lipoedema even causes the patient’s mental disorder.

Moreover, depression and posttraumatic stress disorders are significantly related to the maximum pain intensity estimated by patients in everyday life. This demonstrates that it is imperative to rethink lipoedema therapy and to implement a psychosocial pillar in an overall therapy concept.

Pain resilience, pain catastrophizing, and executive functioning: performance on a short-term memory task during simultaneous ischemic pain

Among pain researchers there is a growing interest in the relationship between psychological resilience and pain experience. Whereas much of this work has focused on individual differences in pain perception or sensitivity, an equally important dimension of resilience is the capacity to persist with goal-directed activity despite experiencing pain. Consistent with this latter focus, the current study examined how pain resilience and pain catastrophizing combine to moderate the effects of ischemic pain on short-term memory task performance. Using a within-subjects design, 121 healthy participants completed four trials of a Corsi block-tapping task with pain exposure during the second and fourth trials. Results indicated that a combination of high pain resilience and low pain catastrophizing was associated with better task performance during the second pain exposure. These findings confirm existing evidence that resilience can moderate performance during pain, and offer new evidence that resilience and catastrophizing interact to shape this effect.

The Effectiveness of Acceptance and Commitment Therapy on Pain Acceptance and Pain Perception in Patients with Painful Diabetic Neuropathy: A Randomized Controlled Trial

INTRODUCTION

Neuropathic pain is a complex phenomenon in patients with diabetes. These patients have many problems, such as psychological problems, high-level pain perception, and pain acceptance. This study aimed to evaluate the effectiveness of acceptance and commitment therapy on pain acceptance and pain perception in patients with painful diabetic neuropathy.

METHODS

This study was performed according to the clinical trial method. The sample size was 50 participants. In this study, participants were divided into interventional and control groups. According to the diagnosis of neurologists, all participants received conventional medications to manage neuropathic pain. The intervention group received acceptance and commitment therapy for eight sessions. The results in the three phases of pre-test, post-test, and follow-up were evaluated. After completing the study, to comply with ethical standards, the control group received psycho-education. The tools used were the McGill Pain Questionnaire (MPQ) and the Chronic Pain Acceptance Questionnaire (CPAQ). Statistical analysis includes mean, standard deviation, and repeated-measures (ANOVA) conducted by SPSS software version 22.

RESULTS

The results demonstrated that in the post-test and follow-up phases, acceptance and commitment therapy could improve pain acceptance and reduce pain perception in the intervention group compared to the control group (P < 0.01).

CONCLUSION

The results indicated that acceptance and commitment therapy could be used as a psychological intervention besides pharmacotherapy to improve pain acceptance and reduce pain perception in patients with painful diabetic neuropathy.

CLINICAL TRAIL REGISTRATION

This study was registered at the Iranian Registry of Clinical Trials (IRCT20180205038630N4).