Short-Form McGill Pain Questionnaire Research Articles

Can chronic spontaneous urticaria produce symptoms of neuropathic pain?

BackgroundChronic spontaneous urticaria (CSU) is a condition that is associated with recurrent pruritic hives and/or angioedema lasting for more than 6 weeks and is known to affect 1% of the population. Neuropathic pain can be defined as abnormal pain in the peripheral or central nervous system following injury and results from dysfunctions in the peripheral or central nervous system without peripheral nociceptor stimulation. Histamine appears in the pathogenesis of both the CSU and diseases of the neuropathic pain spectrum. ObjectiveTo evaluate the symptoms of neuropathic pain in patients with CSU using scales. MethodFifty-one patients with CSU and 47 sex- and age-matched healthy controls were included in the study. ResultsThe results of the short-form McGill Pain Questionnaire revealed the scores in the sensory and affective domains, Visual Analogue Scale (VAS) scores and pain indices to be significantly higher in the patient group (p < 0.05 for all cases), while the overall pain assessment and sensory assessment based on the Self-Administered Leeds Assessment of Neuropathic Symptoms and Signs (S-LANSS) pain scale were also significantly higher in the patient group. Based on the assumption that scores of > 12 indicated neuropathy, 27 (53%) of the patients in the patient group and 8 (17%) in the control group were found to have neuropathy (p < 0.05). Study limitationsCross-sectional study, small patient sample and use of self-reported scales. ConclusionIn addition to itching, patients with CSU should be aware of the potential for the association of neuropathic pain. In this chronic disease that is known to affect the quality of life, using an integrated approach with the patients and identifying accompanying problems are as important as treating the dermatological disorder.

Efficacy of combined application of traditional Chinese medicine foot bath and mild moxibustion in the treatment o f limb pain in diabetic peripheral neuropathy patients

Purpose: To determine the efficacy of the combination of traditional Chinese medicine (TCM) foot bath and mild moxibustion in the treatment of limb pain in patients with diabetic peripheral neuropathy (DPN).&#x0D; Methods: A total of 120 patients with symptoms of DPN-induced pain who were hospitalized at the Department of Endocrinology in the 903rd Hospital of PLA, from January 2020 to June 2021, were included in this study. They were randomly assigned to a study group and a control group, with 60 patients in each group. Patients in both groups received conventional treatments and nursing care, while those in study group were additionally treated with a combination of TCM foot bath and mild moxibustion. Treatment efficacy in the patients was evaluated using Short-Form McGill Pain Questionnaire (SF-MPQ), pain rating index (PRI), visual analogue scale (VAS), TCM symptom score (TCMSS), and Toronto Clinical Scoring System (TCSS).&#x0D; Results: Compared with control group, there were significant improvements in pain-related scores, namely, SF-MPQ, (p ˂ 0.05); PRI, (p &lt; 0.01); VAS, (p &lt; 0.05); as well as overall efficacy (p &lt; 0.05). Similar improvements were also observed with regard to TCMSS (p &lt; 0.001) and TCSS (p &lt; 0.001) in the study group. However, there were no significant changes in Adjusted Diabetes Quality of Life (A-DQOL) score and blood glucose control in both groups.&#x0D; Conclusion: Relative to the conventional treatment for DPN, limb pain and disease score of patients are significantly reduced by the combination of TCM foot bath and mild moxibustion treatments. Further clinical trials would be required prior to application in clinical practice.

Patient-reported outcomes measures of X-linked hypophosphataemia participants: findings from a prospective cohort study in the UK

BackgroundX-linked hypophosphataemia (XLH) is a rare genetic condition passed on through the X chromosome which causes multiple symptoms including weakened teeth, bones, and muscles. Due to the rarity of the condition, little is known about the health outcomes as reported by people with the disease. The objectives of this study were threefold: to characterise key patient reported outcome measures (PROMs) in adults with XLH, to identify clusters of symptom-severity groups based on PROMs, and to analyse the longitudinal progression of available PROMs.MethodsData from 48 participants from the Rare and Undiagnosed Diseases cohort Study (RUDY) was used to analyse both cross-sectional and longitudinal patient-reported outcomes. We analysed data for health-related quality of life (HRQL): EuroQol 5 dimensions-5 levels (EQ-5D-5L), Short-form 36 (SF-36) Physical Component Score (PCS), and SF-36 Mental Component Score (MCS), sleep: Pittsburgh sleep quality index (PSQI) and Epworth Sleepiness scale (ESS), fatigue: Fatigue Severity Scale (FSS) and Functional assessment of chronic illness therapy-fatigue (FACIT-F), pain: Short form McGill pain questionnaire version 2 (SF-MPQ-2) and PainDETECT, and mental well-being: Hospital anxiety and depression scale (HADS) anxiety and depression. Summary statistics, tests of mean differences, mixed-effects models, and cluster analysis were used to describe and examine the various health dimensions of individuals with XLH.ResultsOverall mean scores were EQ-5D-5L = 0.65, SF-36-PCS = 32.7, and SF-36-MCS = 48.4 for HRQL, ESS = 5.9 and PSQI = 8.9 for sleep, FSS = 32.8 and FACIT-F = 104.4 for fatigue, SF-MPQ-2 = 1.9 for pain, and HADS-depression = 4.7 and HADS-anxiety = 6.2 for mental well-being. 7% reported neuropathic pain (PainDETECT). Whilst many adults with XLH reported good outcomes, extreme or severe problems were reported across all outcomes. Cluster analysis identified that adults with XLH could be divided into two distinct groups, one reporting worse (35.3%) and the other better outcomes (64.7%) (less pain, fatigue, depression, and higher levels of sleep). Longitudinal analysis showed that FACIT-F and HADS-anxiety scores worsened slightly over two years with statistically significant (p < 0.05) time coefficients (b = − 2.135 and b = 0.314, respectively).ConclusionAlthough about two thirds of adult participants of the RUDY cohort with XLH report good health outcomes, for a considerable third much worse outcomes are reported. More research is needed to examine why some experience good and others poor health outcomes and the characteristics which identify them.

Intermediary roles of prospective memory and retrospective memory in the comorbidity of depression and pain

BackgroundPatients who suffer comorbidity of major depressive disorder (MDD) and chronic pain (CP) maintain a complex interplay between maladaptive prospective memory (PM) and retrospective memory (RM) with physical pain, and...

Psychometric Properties and The Best Form of the Revised Short-form Mc-Gill Pain Questionnaire in Iranian Burn Patients.

Pain is the most important factor that forces patients to seek help from health care systems. Burn injuries are associated with severe pain and the assessment and interventions are a focus of nursing care. The aim of this study was to evaluate the psychometric properties of the revised short-form McGill Pain Questionnaire in burn patients. The present study is a methodological study in which 153 burn patients were included by convenience sampling. To evaluate the psychometric properties of the 22-item revised McGill Pain Questionnaire, face validity, construct validity (exploratory factor analysis) and reliability were determined by Cronbach's Alpha coefficient and split-half method. Data analysis was performed using SPSS22.0 software. During the quantitative face validity test, 4 items were removed from the instrument due to the impact score of less than 1.5 by burn patients. The results of exploratory factor analysis showed 5 factors (emotional, neuropathic, continuous, stimulatory, and shooting), which explained 72.32% of the total variance. The overall Cronbach's instrument was 0.836 and the coefficient obtained by the split-half method was 0.81. According to the validity and reliability, the 18-item McGill Pain Questionnaire obtained in the present study can be used to assess pain in Persian-speaking adult burn patients.

Prevalence of hypertension and correlation with mental health in women with burning mouth syndrome: A case-control study.

The relationship between hypertension (HTN) and chronic pain is still a matter of debate, and its prevalence in patients with burning mouth syndrome (BMS) has never been evaluated. This study aimed to assess the prevalence of HTN in women with BMS and to evaluate its relationship with potential predictors such as risk factors for cardiovascular diseases, pain, and mental health status analyzing differences with healthy women. In total, 250 women with BMS (WBMS) were prospectively recruited and compared with an equal number of healthy women (HW) matched for age. Education, body mass index, smoke and alcohol consumption, intensity and quality of pain, and psychological profile were further investigated to identify the potential predictors of HTN. Specifically, pain assessment [the Numeric Rating Scale (NRS) and Short-Form McGill Pain Questionnaire (SF-MPQ)] and psychological assessment [Hamilton Rating Scale for Depression and Anxiety (HAM-D and HAM-A), Pittsburgh Sleep Quality Index (PSQI), and Epworth Sleepiness Scale (ESS)] was carried out for the participants. HTN was found in 128 (51.2%) WBMS and 76 (30.4%) HW (p < 0.001**). The scores of the NRS, SF-MPQ, HAM-D, HAM-A, and PSQI were statistically significantly higher in the WBMS than in the HW (p < 0.001**). A strongly linear correlation between HTN and employment status, systemic diseases, and education level (p < 0.001**) was found in WBMS, while a strong correlation between HTN and employment status, hypercholesterolemia, systemic diseases, and drug consumption was found in HW (p < 0.001**). No statistically significant correlation was found between HTN and pain, anxiety, depression, and sleep disturbances. These results suggest that WBMS showed a higher prevalence of HTN compared with controls. Unemployed WBMS with lower education and other systemic comorbidities are at an increased risk of developing HTN. HTN is associated with alteration in the vascular structure and function of the brain, and these processes accelerate brain aging, which contributes to a reduction in intracortical connectivity, thus affecting the modulatory system of control of pain in patients with BMS, independently of their mental health assessment. Predictors that may underlie this association remain unclear, taking into account the differences found in HW, and should be further elucidated.

Wound Pain as a Determinant of Function in Patients Hospitalised for Burns.

Burn wounds most often occur on visible parts of the body. They therefore cause fear of disfigurement and rejection by those around them. In addition, they cause pain. The main aim of this study was to analyse factors affecting the functioning of patients hospitalised for burns. The study included 57 patients hospitalised for burns. Each person was surveyed twice: on day seven after admission and on the day of discharge from the hospital. The following research tools were used: a personal questionnaire to collect clinical data and the scales of the Katz Activities of Daily Living (ADL), the short-form McGill Pain Questionnaire (SF-MPQ), the Beck Depression Inventory (BDI) and the Satisfaction with Appearance Scale (SWAP). On the discharge day, compared to day 7, there was an improvement in the patient's level of functioning in all areas analysed. Pain intensity (p < 0.0001), depression (p < 0.0001) and dissatisfaction with appearance (p = 0.0239) decreased significantly. Improvements in daily functioning were also obtained (p < 0.0001). Multiple regression was performed to estimate the effect of selected variables on patients' level of functioning. Burn area (p = 0.0126), pain level (questionnaire part B: p = 0.0004 and questionnaire part C: p = 0.0208) and gender (p = 0.0413) had a significant impact on the level of daily functioning. Pain complaints are the most crucial predictor affecting the functional status and depression levels in burn wound patients. Increased levels of depression promote dissatisfaction with one's appearance.

The Effectiveness of Mindful Hypnotherapy on Psychological Inflexibility, Pain Acceptance, Headache Disability and Intensity in Females with Chronic Migraine Headache: A Randomized Clinical Trial.

This study was a randomized controlled design and examined the feasibility and effectiveness of mindful hypnotherapy on psychological inflexibility, pain acceptance, headache disability, and headache intensity in patients with chronic migraine headaches. The sample consisted of 38 females with chronic migraine who were randomly assigned to mindful hypnotherapy and medical treatment as usual groups. Psychological inflexibility pain scale (PIPS), chronic pain acceptance questionnaire-revised (CPAQ-R), headache disability inventory (HDI), diary scale for headache, and short-form McGill pain questionnaire 2 (SF-MPQ-2) were administered at baseline and post-treatment in both groups. The psychological inflexibility mean (SD) score was 81.00 (12.15) at baseline, which significantly decreased to 53.28 (17.06) after the intervention (p < 0.001). Additionally, the mean (SD) score of the pain acceptance was 46.44 (11.16), which significantly increased to 73.61 (15.65) in post-intervention (p < 0.001). Furthermore, the mean (SD) score of headache disability was 73.55 (19.48), which significantly decreased to 23.33 (19.88) in post-intervention (p < 0.001). Finally, headache intensity was 7.33 (0.98) and 5.78 (1.83), which significantly decreased to 2.77 (2.04), and 1.38 (1.48) after the intervention based on the Diary Scale for Headache and McGill Pain Questionnaire (SF-MPQ-2), respectively (p < 0.001). In conclusion, the results show that mindful hypnotherapy is a feasible and effective treatment for chronic migraine.

Comparative analysis of the effectiveness of SF-MPQ-2 and VAS for assessing the severity of pain syndrome in dental patients in the postoperative period

Conducting a comparative analysis of the effectiveness of the Short-Form McGill Pain Questionnaire-2 (SF-MPQ-2) and the Visual Analogue Scale (VAS) for assessing the severity of pain syndrome in dental patients in the postoperative period in dynamics. The study included 51 patients who received dental surgical treatment. Two groups of patients were formed, depending on the type of surgery and the degree of trauma of the operation. Group 1 - low degree of injury - 28 patients; group 2 - high degree of injury - 23 patients. Patients independently filled out questionnaires at four stages of the study: before surgery, on the 1st, 3rd, and 5th days after surgery as part of scheduled visits. In patients of group 2, the severity of pain symptoms was higher than in patients of group 1 in terms of pain symptoms on SF-MPQ-2 at all stages of the study, except the day before surgery. At the same time, there were no differences with the indicators of the VAS scale at any of the stages of the study. The most informative indicators of SF-MPQ-2 are the total indicator MPQ-Sum and the constant pain indicator MPQ-Const, which were significantly higher in group 2 on the 1st day after surgery, taking into account the correction for gender and age. The highest level of coincidence of indicators on VAS and the total score on MPQ-Sum was revealed on the 5th day of the operation, regardless of the degree of trauma of the operation. The use of SF-MPQ-2 with a detailed description of pain sensations is the most acceptable way to assess the degree of pain syndrome in operative surgery, especially during the period when the severity of pain symptoms is maximum (in the first days of the postoperative period).

Effect of Combined Exercise Program on Lower Extremity Alignment and Knee Pain in Patients with Genu Varum.

This study aimed to assess the effect of a combined exercise program on lower-extremity alignment and knee pain in patients with genu varum. Forty-seven middle-aged women with knee pain and genu varum were randomly divided into the exercise (EG, n = 24) and control (CG, n = 23) groups. The exercise group underwent a combined exercise program lasting 60 min in one session, three times a week for 12 weeks. Knee-to-knee length (KTKL), hip-knee-ankle angle (HKAA), hip inclination angle (HIA), and medial proximal tibial angle (MPTA) were assessed to evaluate lower-extremity alignment. To evaluate knee pain, the short form-McGill Pain Questionnaire (SF-MPQ) were used. There was a significant difference between the groups, and a decrease of 16% in KTKL (from 6.48 ± 1.26 cm to 5.47 ± 1.21 cm) was shown in EG. Other variables, including HKAA, HIA, and MPTA on the right side, showed significant differences between pre- and post-intervention in EG (p < 0.01, p < 0.01, and p < 0.01, respectively). SF-MPQ score improved with 45% from 18.75 ± 1.64 to 10.33 ± 2.47 after exercise intervention in EG. These results suggest that the combined exercise program, including strength and neuromuscular exercises, is an effective intervention for improving lower-extremity alignment and knee pain in middle-aged women with genu varum.

Dry needling for the treatment of acute myofascial pain syndrome in general practitioners’ clinics: a cohort study

BackgroundMusculoskeletal pain is one of the leading complaints in the ambulatory setting. There are many ways to treat it, including pharmacologic and non-pharmacologic approaches. Dry needling (DN) is an option that is easy to learn, cheap and has a good safety profile. The aim of this study was to assess the association between DN performed by GPs for acute myofascial pain syndrome (MPS) and pain relief and to evaluate factors associated with treatment success.MethodsIn this prospective cohort study, two GPs performed DN in their clinics. Patients were asked to rank their pain using the Short-Form McGill Pain Questionnaire (SF-MPQ) before, 10-min and 1-week after the procedure. The SF-MPQ index consists of 3 parts; visual analog scale (VAS), pain rating index (PRI) and present pain intensity (PPI).Logistic regressions were performed to assess the variables associated with short- and medium- term success.ResultsFifty two patients were recruited from September 2019 until August 2020. VAS was 6.0 ± 2.3 (before), 4.1 ± 2.5 (10-min after) and 2.6 ± 2.71 (1-week after), P < 0.05. PRI was 17 ± 9.1 (before), 10.8 ± 8.5 (10-min after) and 5.1 ± 6.5 (1-week after), P < 0.05. PPI was 2.6 ± 1.0 (before), 1.7 ± 1.0 (10-min after) and 1.1 ± 1.2 (1-week after), P < 0.05.Short-term success was associated with the physician who performed the procedure (OR 10.08, 95% CI 1.15,88.4) and with the use of a single needle (vs. multiple needles inserted) (OR 4.55, 95% CI 1.03,20.11). Medium-term success was associated with being a native born (non-immigrant), OR 8.59, 95% CI 1.11,66.28 and with high level of initial pain, OR 11.22, 95% CI 1.82,69.27.ConclusionOur study demonstrated improvement in acute pain 10-min and 1-week after DN performed by a GP, in all parts of the SF-MPQ. Therefore, we believe DN is a good therapeutic option for GPs to aid patients suffering from MPS.

Establishing Minimal Clinically Important Difference in Sleep Outcomes after Spinal Cord Stimulation in Patients with Chronic Pain Disorders

Introduction: As one of the most common medical conditions for which patients seek medical care, chronic pain can be debilitating. The relationship between chronic pain and sleep is thought to be bidirectional, suggesting that treatment of one can be beneficial to the other. There is mounting evidence that spinal cord stimulation (SCS) improves aspects of sleep. How meaningful that is to patients’ lives has not been ascertained. Objective: The aim of the current study was to further elucidate the effect of SCS on sleep by examining the relationship between pain outcome measures with the insomnia severity index (ISI) and to establish the minimally clinical important difference (MCID), which is defined as the smallest noticeable change that an individual perceives as clinically significant. Materials and Methods: We prospectively collected ISI, Epworth sleepiness scale (ESS), Numerical Rating Scale, McGill Pain Questionnaire-Short Form, Oswestry Disability Index, Beck Depression Inventory, and Pain Catastrophizing Scale data both pre- and postoperatively for chronic pain patients who underwent SCS placement and had long-term outcomes. The ISI is a well-studied questionnaire used to assess an individual’s level of insomnia. Results: We correlated the ESS and ISI with pain outcome measures in sixty-four patients at a mean follow-up of 9.8 ± 2.9 months. The ISI showed correlations with disability as measured through the Oswestry Disability Index (p = 0.014) and depression as measured through the Beck Depression Inventory (p = 0.024). MCID values for the ISI were calculated using both anchor- and distribution-based methods. The minimal detectable change method resulted in an MCID of 2.4 points, standard error of measurement resulted in an MCID of 2.6 points, and the change difference resulted in an MCID of 2.45. The receiver operating characteristic method yielded an MCID of 0.5-point change with an area under the curve of 0.61. Conclusion: This study successfully established MCID ranges for the ISI outcome measure to help gauge improvement in insomnia after SCS. The ISI has ample evidence of its validity in assessment of insomnia, and MCID values of 2.4–2.6 correlate with improvement in disability and depression in our patients.

The acceptability of cervical electrical impedance spectroscopy within a multi-modal preterm birth screening package: a mixed methods study

BackgroundReducing the rate of preterm birth is a cornerstone of global efforts to address child mortality, however existing screening tests offer imperfect prediction. Cervical electrical impedance spectroscopy (EIS) is a novel technique to quantify the ripening changes which precede labour. Mid-trimester EIS measurements have been shown to accurately predict preterm birth in asymptomatic women. This study aimed to comprehensively evaluate the acceptability of cervical EIS to low and high-risk women as part of a package of screening tests performed during a larger prospective trial.MethodsIn this parallel convergent mixed methods study, 40 women completed questionnaires before and after screening tests (EIS, cervical length measurement and fetal fibronectin quantification). Quantitative outcomes were anxiety levels before and after screening (Spielberger State Trait Anxiety Inventory, STAI-6), pain (Short Form McGill Pain Questionnaire) and ratings of EIS device appearance and test acceptability (visual analogue scales). Twenty-one women (11 high-risk, 10 low-risk) also attended a semi-structured qualitative interview. Interviews were recorded and transcribed, then thematic analysis was performed. A convergence coding matrix was constructed to enable triangulation of quantitative and qualitative results.ResultsHigh risk women demonstrated a significant reduction in anxiety following screening (mean STAI-6 score 34.5 vs. 29.0, p = 0.002). A similar trend was observed among low-risk participants. Ratings of pain, EIS device appearance and procedural acceptability did not differ between groups. Mean pain ratings were low (visual analogue scale 0.97 and 1.01), comparing favourably to published evaluations of conventional screening tests. Qualitative analysis provided insight into both the physical consequences and emotional experiences of screening. Additional determinants of the screening experience included device design, pre-existing perspectives on intimate examination, attitudes to knowledge in pregnancy and interaction with clinical staff. Finally, a range of practical considerations regarding wider use of EIS were identified, with valuable complementary detail regarding acceptability for use in antenatal care.ConclusionsCervical EIS is well tolerated and acceptable to both low and high-risk women when performed as part of a multi-modal screening package. These results provide useful insights to inform the design of future study and screening protocols.

Pain and Depression Account for More Than One Half of the Neck Disability Variance Among Adult Women with Chiari I

We sought to quantify the neck-related disability in adult women with Chiari malformation type I and identify the significantly related variables. A total of 70 variables were selected from the self-report history questionnaires (12 variables; n= 474), standardized scales (15 variables; n= 474), and morphometric data (43 variables; n= 293-474) of adult women with Chiari malformation type I. The variables were tested independently to identify those with a significant relationship to the Neck Disability Index (NDI; P < 0.00071) and those that might be associated with the NDI (P < 0.05). A forward selection regression model was constructed to identify the variables contributing unique variance to the NDI. In addition, a mediation analysis was performed to determine whether depression mediated the relationship between pain and disability. Overall, 79.5% of the patients had scored at a moderate level of disability or higher. Independent testing identified 16 significant variables, including symptom duration, tonsillar position, and measures of psychological distress. The short-form McGill pain questionnaire-2 (r= 0.69; P < 0.00001) and CES-D scale for depression (r= 0.56; P < 0.00001) exhibited the highest correlations with the NDI. The forward selection regression model produced an R2 of 0.6178. Pain and depression accounted for more than one half of the NDI variance. We found that high levels of disability are common among adult women with Chiari malformation type I, independent of surgical status. Pain and depression were the primary factors related to this disability. Depression mediated the relationship between pain intensity and disability at a modest level (5%). Patients who had experienced symptoms for >2 years before diagnosis had had, on average, 77% higher NDI scores, highlighting the importance of a timely diagnosis.

Assessment of early wound healing, pain intensity, quality of life and related influencing factors during periodontal surgery: a cross-sectional study

This cross-sectional study assessed early wound healing, pain intensity, quality of life, surgical satisfaction, and related factors during periodontal surgery. A total of 369 patients completed the questionnaire before undergoing periodontal surgery (baseline), immediately after the operation (phase I), on the day of suture removal (phase II), and one month later (phase III). The Early Wound Healing Score (EHS) was assessed, and the short-form McGill Pain Questionnaire (SF-MPQ), tooth hypersensitivity visual analog scale (VAS), oral health-related quality of life measure (OHQoL-UK), and surgical satisfaction VAS were administered and analysed. The EHS was 8.41 ± 2.74 and was influenced by disease severity and surgical factors. Scores on the SF-MPQ, pain intensity scores, and OHQoL-UK scores were significantly increased in phase I and decreased later. Tooth sensitivity decreased significantly one month after periodontal surgery. Psychological factors were positively related to SF-MPQ, pain intensity, OHQoL-UK and tooth sensitivity VAS scores in all phases, while disease severity and surgical factors were only related to these scores at baseline or in phases I/II/III. Surgical acceptance and reoperation willingness continuously decreased after surgery, and all these scores were related to surgical satisfaction. EHS, pain intensity and quality of life were closely related to disease severity, psychological factors and surgical factors in phase I (i.e., immediately after surgery). The findings suggest that surgical details should be enhanced and that behavioural and psychological interventions measures should be implemented to improve outcomes during periodontal operation and during the early postoperative period as well as to improve patient-oriented periodontal surgery experiences. Trial registration This cross-sectional study did not include interventions with human participants, and all the experimental procedures involving humans in this study were approved by the Ethics Committee of West China College of Stomatology, Sichuan University (WCHSIRB-D-2020-284).

Pain, mood, and suicidal behavior among injured working adults in Chile

BackgroundChronic pain is comorbid with psychiatric disorders, but information on the association of chronic pain with depressive symptoms, generalized anxiety, and suicidal behavior among occupational cohorts is inadequate. We investigated these associations among employed Chilean adults.MethodsA total of 1946 working adults were interviewed during their outpatient visit. Pain was assessed using the Short Form McGill Pain questionnaire (SF-MPG) while depression and generalized anxiety were examined using the Patient Health Questionnaire-9 (PHQ-9) and Generalized Anxiety Disorder-7 (GAD-7), respectively. The Columbia–Suicide Severity Rating Scale was used to assess suicidal behavior and suicidal ideation. Multivariable logistic regression models were used to estimate adjusted odds ratios (aORs) and 95% confidence intervals (95%CI) for the association of chronic pain with mood disorders, as well as suicidal behavior.ResultsHigh chronic pain (SF-MPG > 11) was reported by 46% of participants. Approximately two-fifths of the study participants (38.2%) had depression, 23.8% generalized anxiety, 13.4% suicidal ideation, and 2.4% suicidal behavior. Compared to those with low pain (SF-MPG ≤11), participants with high chronic pain (SF-MPG > 11) had increased odds of experiencing depression only (aOR = 2.87; 95% CI: 2.21–3.73), generalized anxiety only (aOR = 2.38; 95% CI: 1.42–3.99), and comorbid depression and generalized anxiety (aOR = 6.91; 95% CI: 5.20–9.19). The corresponding aOR (95%CI) for suicidal ideation and suicidal behavior were (aOR = 2.20; 95% CI: 1.58–3.07) and (aOR = 2.18 = 95% CI: 0.99–4.79), respectively.ConclusionsChronic pain is associated with increased odds of depression, generalized anxiety, and suicidal behavior. Mental health support and appropriate management of patients experiencing chronic pain are critical.

Symptom descriptors and patterns in lumbar radicular pain caused by disc herniation: a 1-year longitudinal cohort study

ObjectiveThe objective of the present study was to explore the diversity, quality, severity and distribution of symptoms in patients with radicular pain and a lumbar disc herniation.DesignLongitudinal cohort study.SettingHospital-based back...

The effects of an SPM-enriched marine oil and bioavailable curcumin combination on inflammation-associated discomfort in generally healthy individuals: a virtual open-label pilot study

BackgroundAcute inflammation is the body’s immediate and well-coordinated response to injury, which if not resolved can lead to a state of chronic inflammation and is an important component of aging-associated pathologies and chronic diseases. Resolution of inflammation has been shown to be highly regulated by several endogenous specialized pro-resolving mediators which are metabolized from dietary omega-3 and -6 fatty acids. The aim of this pilot study was to validate the use of a combination of a specialized pro-resolving (SPM) enriched marine oil supplement and a highly bioavailable curcumin supplement to reduce pain/discomfort in healthy adults.MethodsThis was a virtual (remote), single-arm open-label study in healthy adults with mild to moderate pain. Twenty-nine individuals were provided with an SPM-enriched marine oil supplement (enriched for three SPM precursors) and a highly bioavailable curcumin supplement to be taken daily for 60 days. The Short-Form McGill Pain Questionnaire (SF-MPQ), Short-Form 36 (SF-36) Health Survey and Medical Symptoms Questionnaire (MSQ) were used to evaluate safety, tolerability and efficacy in reducing pain/discomfort of inflammation.ResultsThe SF-MPQ showed significant improvement in all aspects of the questionnaire, especially in total pain, pain intensity and pain severity within 30 days of supplementation. Significant improvements were also observed in the physical health domain of the SF-36 health survey, particularly in the areas of pain and physical functioning at both days 30 and 60. No adverse events related to the study materials were reported during the study.ConclusionIn conclusion, the combination of anti-inflammatory and pro-resolving supplements may provide a complementary approach for targeting pain/discomfort associated with inflammation.Trial registrationClinicalTrials.gov, NCT04819646. Registered 29 March 2021 – Retrospectively registered.

8918 Relationship between Brainwave Biomarker and Endometriosis Pain Symptoms before and after Laparoscopic Surgery

Study Objective The purpose of this study was to explore the relationship between peak alpha frequency (PAF), an electroencephalogram (EEG)-based biomarker for pain sensitivity, and pain symptoms for patients undergoing laparoscopic surgery for endometriosis. Design Prospective observational pilot study. Setting Large academic hospital. Patients or Participants Patients (n=18) undergoing laparoscopic endometriosis excision surgery were invited to participate. Participants enrolled before surgery and were followed up to 6 weeks postoperatively. Interventions N/A. Measurements and Main Results Participants completed a physical exam, quantitative EEG, and symptom questionnaires before and after surgery (2-weeks and/or 6-weeks post-op). We hypothesized that PAF would increase after surgery indicating an improvement in pain symptoms. To measure PAF, EEG data was collected using a BrainBit dry electrode headset. Patient-reported outcome measures for pain and endometriosis symptoms were collected using Modified Brief Pain Inventory (BPI), Short-form McGill Pain Questionnaire 2, Endometriosis Health Profile 30, and Patient Health Questionnaire 9. Descriptive statistics and Spearman correlation coefficients were calculated for each measure before and after surgery. Overall, we observed an increase in PAF following surgery, where median values shifted from 9.88 Hz preoperatively (IQR 9.84 - 9.99 Hz) to 10.01 Hz postoperatively (IQR 9.84 - 10.06 Hz). Preliminary results suggest that preoperative PAF is moderately inversely correlated with average preoperative pain reported using BPI (rho = -0.52) but is not strongly correlated with other measures. Conclusion While the reported results are underpowered to determine statistical significance, PAF was found to increase six weeks after endometriosis surgery. Furthermore, preoperative PAF appears to be inversely correlated with preoperative pain symptoms, suggesting that PAF is a useful measure for tracking pain in patients with endometriosis. Additional investigation and follow-up is needed to determine how PAF relates to long-term surgical outcomes for patients with chronic pelvic pain. The purpose of this study was to explore the relationship between peak alpha frequency (PAF), an electroencephalogram (EEG)-based biomarker for pain sensitivity, and pain symptoms for patients undergoing laparoscopic surgery for endometriosis. Prospective observational pilot study. Large academic hospital. Patients (n=18) undergoing laparoscopic endometriosis excision surgery were invited to participate. Participants enrolled before surgery and were followed up to 6 weeks postoperatively. N/A. Participants completed a physical exam, quantitative EEG, and symptom questionnaires before and after surgery (2-weeks and/or 6-weeks post-op). We hypothesized that PAF would increase after surgery indicating an improvement in pain symptoms. To measure PAF, EEG data was collected using a BrainBit dry electrode headset. Patient-reported outcome measures for pain and endometriosis symptoms were collected using Modified Brief Pain Inventory (BPI), Short-form McGill Pain Questionnaire 2, Endometriosis Health Profile 30, and Patient Health Questionnaire 9. Descriptive statistics and Spearman correlation coefficients were calculated for each measure before and after surgery. Overall, we observed an increase in PAF following surgery, where median values shifted from 9.88 Hz preoperatively (IQR 9.84 - 9.99 Hz) to 10.01 Hz postoperatively (IQR 9.84 - 10.06 Hz). Preliminary results suggest that preoperative PAF is moderately inversely correlated with average preoperative pain reported using BPI (rho = -0.52) but is not strongly correlated with other measures. While the reported results are underpowered to determine statistical significance, PAF was found to increase six weeks after endometriosis surgery. Furthermore, preoperative PAF appears to be inversely correlated with preoperative pain symptoms, suggesting that PAF is a useful measure for tracking pain in patients with endometriosis. Additional investigation and follow-up is needed to determine how PAF relates to long-term surgical outcomes for patients with chronic pelvic pain.

Subjective Sleep Disruption and Mood Disorders are Associated with the Risk of Chronic Pain in Patients with Obstructive Sleep Apnea.

This study aimed to determine the prevalence of chronic pain and its risk factors in patients with obstructive sleep apnea (OSA). A total of 145 patients diagnosed with OSA were consecutively recruited from the Sleep Medicine Center in West China Hospital. All patients were divided into two groups including OSA with and without chronic pain. They were assessed the subjective sleep (Pittsburgh Sleep Quality Index, Insomnia Severity Index), objective sleep (polysomnography), mood symptoms (Hamilton Depression Rating Scale, Hamilton Anxiety Rating Scale), and pain characteristics (Short-Form McGill Pain Questionnaire). Demographic, clinical, subjective and objective sleep parameters were compared between OSA patients with and without chronic pain. Binary logistic regression models and linear regression models were used to examine the risk factors of chronic pain in OSA. Fifty-five (37.9%) patients with OSA were diagnosed with chronic pain. There were more severe subjective sleep disruption and symptoms of anxiety and depression in patients with chronic pain compared to those without chronic pain. After controlling for potential confounders, poor subjective sleep quality and severe insomnia and mood disorders (all ps < 0.05), but not objective sleep fragmentation or nocturnal hypoxemia (all ps > 0.05) were associated with the increased risk of pain and pain intensity, respectively. More than one-third of patients with OSA had chronic pain. Subjective sleep disruption and mood disorders are the risk factors of chronic pain in OSA. Our findings suggest that subjective sleep quality should be valued highly in the relationship between OSA and pain.