scholarly journals The Impact of Music on Nociceptive Processing

Pain Medicine ◽  
2020 ◽  
Vol 21 (11) ◽  
pp. 3047-3054
Author(s):  
Peter R Chai ◽  
Jasmine Y Gale ◽  
Megan E Patton ◽  
Emily Schwartz ◽  
Guruprasad D Jambaulikar ◽  
...  
Keyword(s):  
Pain Catastrophizing ◽  
Paired Comparison ◽  
Pain Modulation ◽  
Cold Pain ◽  
Pressure Pain ◽  
Pressure Pain Thresholds ◽  
Significant Difference ◽  
Nociceptive Processing ◽  
Repeated Pain ◽  
The Impact

Abstract Objective. Music has been shown to modulate pain, although the impact of music on specific aspects of nociceptive processing is less well understood. Using quantitative sensory testing (QST), we assessed the impact of a novel music app on specific aspects of nociceptive processing. Design. Within-subjects paired comparison of pain processing in control vs music condition. Setting. Human psychophysical laboratory. Subjects. Sixty healthy adult volunteers. Methods. Subjects were assessed for baseline anxiety, depression, and catastrophizing using validated questionnaires. QSTs measured included 1) pain threshold and tolerance to deep muscle pressure, 2) pain with mechanical pinprick, 3) temporal summation of pain (TSP) with a repeated pain stimulus, and 4) conditioned pain modulation (CPM) with a second painful stimulus. QSTs were performed in the absence and presence of music delivered through a music app. Results. We found an increase in pressure pain thresholds in both the forearm (P = 0.007) and trapezius (P = 0.002) with music, as well as a decrease in the amount of pinprick pain (P < 0.001) and TSP (P = 0.01) with music. Interestingly, CPM was also significantly diminished (P < 0.001) in the music condition. No significant difference in cold pain, anxiety, or situational catastrophizing was observed with music. Higher baseline pain catastrophizing scores were associated with less music-induced pressure pain reduction. Conclusions. Several measures of mechanical pain sensitivity were reduced with music. TSP, a measure of central sensitization, also decreased with music, but CPM, a measure of descending modulation of pain, was not further augmented by music.

Pressure pain thresholds in children before and after surgery: a prospective study

2020 ◽  
Vol 20 (2) ◽  
pp. 339-344
Author(s):  
Line Kjeldgaard Pedersen ◽  
Polina Martinkevich ◽  
Ole Rahbek ◽  
Lone Nikolajsen ◽  
Bjarne Møller-Madsen
Keyword(s):  
Prospective Study ◽  
Orthopaedic Surgery ◽  
Rating Scale ◽  
Pain Thresholds ◽  
Pressure Pain ◽  
Bonferroni Adjustment ◽  
Pressure Pain Thresholds ◽  
Significant Difference ◽  
Baseline Values

AbstractBackground and aimsThis prospective study aimed to assess pressure pain thresholds (PPTs) by pressure algometry and the correlation to postoperative pain in children undergoing orthopaedic surgery. We hypothesized, that the PPTs would decline immediately after elective orthopaedic surgery and return to baseline values at follow-up.MethodsThirty children aged 6–16 years were included. PPTs and intensity of pain (Numerical Rating Scale, NRS) were assessed 3–6 weeks before surgery (baseline), 1–2 h before surgery (Day 0), the first postoperative day (Day 1) and 6–12 weeks after surgery (Follow-up).ResultsA significant difference of PPTs between the four assessments was seen using the Friedman test for detecting differences across multiple tests and Wilcoxon signed-rank test with a Bonferroni adjustment. The changes in PPTs between baseline (PPTcrus = 248 kPa, PPTthenar = 195 kPa) and day 1 (PPTcrus = 146 kPa, PPTthenar = 161 kPa) showed a decline of PPTs as hypothesized (Zcrus = 2.373, p = 0.018; Zthenar = 0.55, p = 0.581). More surprisingly, a significant decrease in PPTs between baseline and day 0, just before surgery (PPTcrus = 171 kPa, PPTthenar = 179 kPa), was also measured (Zcrus = 2.475, p = 0.013; Zthenar = 2.414, p = 0.016). PPTs were positively correlated to higher age, weight and height; but not to NRS or opioid equivalent use.ConclusionsChildren undergoing orthopaedic surgery demonstrate significant changes in PPTs over time. The PPTs decrease significantly between baseline and day 0, further decreases the first day postoperatively and returns to baseline values at follow-up. This suggests that other factors than surgery modulate the threshold for pain.ImplicationsAwareness of pressure pain thresholds may help identify children with affected pain perception and hence improve future pain management in children undergoing orthopaedic surgery. Factors as for example anticipatory anxiety, psychological habitus, expected pain, catastrophizing, distraction, physical activity, patient education and preoperative pain medication might play a role in the perception of pain and need further investigation.

How Much Is Needed? Comparison of the Effectiveness of Different Pain Education Dosages in Patients with Fibromyalgia

Pain Medicine ◽  
2019 ◽  
Vol 21 (4) ◽  
pp. 782-793 ◽  
Author(s):  
Juan J Amer-Cuenca ◽  
Daniel Pecos-Martín ◽  
Patricia Martínez-Merinero ◽  
Enrique Lluch Girbés ◽  
Jo Nijs ◽  
...  
Keyword(s):  
Rating Scale ◽  
Fibromyalgia Impact Questionnaire ◽  
Pain Modulation ◽  
Secondary Outcome ◽  
High Dose ◽  
Psychological Variables ◽  
Pressure Pain Thresholds ◽  
Nociceptive Processing ◽  
Biomedical Education

AbstractObjectiveTo assess the effect of different dosages of pain neuroscience education (PNE) programs on central nociceptive processing in patients with fibromyalgia. Second, to compare the effects of different dosages of PNE programs on numerical pain rating scale (NPRS), disability, and psychological variables.DesignSingle-blind randomized controlled trial.SettingThree fibromyalgia centers in Spain (Valencia, Alcorcón, Alcalá de Henares).SubjectsSeventy-seven patients with fibromyalgia.MethodsParticipants were randomized to four groups of PNE: 1) high-dose PNE (N = 20), 2) low–concentrated dose PNE (N = 20), 3) diluted low-dose PNE (N = 20), and (4) control treatment (N = 17), conducted in two 30–50-minute sessions in groups of four to six participants. Conditioned pain modulation (CPM), temporal summation (TS), and pressure pain thresholds (PPTs) were assessed at baseline and at three-month follow-up. Secondary outcome measures were the Fibromyalgia Impact Questionnaire, Pain Catastrophizing Scale, and Pain Anxiety Symptoms Scale.ResultsThere were significant between-group differences for NPRS in favor of the groups receiving high-dose PNE, with a large effect size at three-month follow-up (P < 0.01, η2p = 0.170), but there were no significant differences between groups for the remaining variables (P > 0.05). All groups improved for central nociceptive processing, psychological variables, disability, and pain intensity (NPRS).ConclusionsIn patients with fibromyalgia, higher dosages of PNE produced a larger improvement in pain severity at three-month follow-up than other dosages of PNE and biomedical education. However, PNE was not superior to biomedical education in the central nociceptive processing, disability, or psychological variables in patients with fibromyalgia.

scholarly journals The role of deficient pain modulatory systems in the development of persistent post-traumatic headaches following mild traumatic brain injury: an exploratory longitudinal study

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Kelly M. Naugle ◽  
Christopher Carey ◽  
Eric Evans ◽  
Jonathan Saxe ◽  
Ryan Overman ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Mild Traumatic Brain Injury ◽  
Pain Catastrophizing ◽  
Pain Modulation ◽  
Conditioned Pain Modulation ◽  
Mild Tbi ◽  
Inhibitory Capacity ◽  
Pressure Pain Thresholds ◽  
Post Traumatic

Abstract Background Post-traumatic headache (PTH) is one of the most common and long-lasting symptoms following mild traumatic brain injury (TBI). However, the pathological mechanisms underlying the development of persistent PTH remain poorly understood. The primary purpose of this prospective pilot study was to evaluate whether early pain modulatory profiles (sensitization and endogenous pain inhibitory capacity) and psychological factors after mild TBI predict the development of persistent PTH in mild TBI patients. Methods Adult mild TBI patients recruited from Level I Emergency Department Trauma Centers completed study sessions at 1–2 weeks, 1-month, and 4-months post mild TBI. Participants completed the following outcome measures during each session: conditioned pain modulation to measure endogenous pain inhibitory capacity, temporal summation of pain and pressure pain thresholds of the head to measure sensitization of the head, Pain Catastrophizing Scale, Center for Epidemiological Studies – Depression Scale, and a standardized headache survey. Participants were classified into persistent PTH (PPTH) and no-PPTH groups based on the 4-month data. Results The results revealed that mild TBI patients developing persistent PTH exhibited significantly diminished pain inhibitory capacity, and greater depression and pain catastrophizing following injury compared to those who do not develop persistent PTH. Furthermore, logistic regression indicated that headache pain intensity at 1–2 weeks and pain inhibitory capacity on the conditioned pain modulation test at 1–2 weeks predicted persistent PTH classification at 4 months post injury. Conclusions Overall, the results suggested that persistent PTH is characterized by dysfunctional alterations in endogenous pain modulatory function and psychological processes in the early stages following mild TBI, which likely exacerbate risk for the maintenance of PTH.

Mapping of predictors of the disengagement of the descending inhibitory pain modulation system in fibromyalgia: an exploratory study

2020 ◽  
pp. 204946372092076
Author(s):  
Matheus Dorigatti Soldatelli ◽  
Timo Siepmann ◽  
Ben Min-Woo Illigens ◽  
Vinicius Souza dos Santos ◽  
Iraci Lucena da S Torres ◽  
...  
Keyword(s):  
Cold Water ◽  
Pain Catastrophizing ◽  
Composite Index ◽  
Multivariate Logistic Regression Analysis ◽  
Area Under The Curve ◽  
Pain Modulation ◽  
Poor Sleep ◽  
Cross Sectional ◽  
Heat Pain Threshold ◽  
The Impact

Background: The main symptoms of fibromyalgia comprise diffuse pain, disability, depressive symptoms, catastrophizing, sleep disruption and fatigue, associated with dysfunction of the descending pain-modulating system (DPMS). Objectives: We aimed to identify patterns of main symptoms of fibromyalgia and neuroplasticity biomarkers (i.e. brain-derived neurotrophic factor (BDNF) and S100B protein) in non-responders to the conditioned pain modulation task (CPM-task) induced by immersion of hand in cold water (0–1°C). Furthermore, we evaluated if these patterns predict responsiveness to CPM-task. Methods: This cross-sectional study included 117 women with fibromyalgia (( n = 60) non-responders and ( n = 57) responders), with age ranging from 30 to 65 years old. We analysed changes in numerical pain scale (NPS-10) during the CPM-task using a standardized protocol. Results: A hierarchical multivariate logistic regression analysis was used to construct a propensity score-adjusted index to identify non-responders compared to responders to CPM-task. The following variables were retained in the models: analgesic use four or more times per week, heat pain threshold (HPT), poor sleep quality, pain catastrophizing, serum levels of BDNF, number of psychiatric diagnoses and the impact of symptoms of fibromyalgia on quality of life. Receiver operator characteristics (ROC) analysis showed non-responders can be discriminated from responders by a composite index of more frequent symptoms of fibromyalgia and neuroplasticity markers (area under the curve (AUC) = 0.83, sensitivity = 100% and specificity = 98%). Conclusion: Patterns of fibromyalgia symptoms and neuroplasticity markers may be helpful to predict responsiveness to the CPM-task which might help personalize treatment and thereby contribute to the care of patients with fibromyalgia.

scholarly journals Central inhibition of pain is augmented in women with self-injurious behavior

2021 ◽  
Author(s):  
Maria Lalouni ◽  
Jens Fust ◽  
Johan Bjureberg ◽  
Granit Kastrati ◽  
Robin Fondberg ◽  
...  
Keyword(s):  
Temporal Summation ◽  
Pain Modulation ◽  
Pain Tolerance ◽  
Conditioned Pain Modulation ◽  
Heat Pain ◽  
Healthy Controls ◽  
Down Regulation ◽  
Pain Thresholds ◽  
Pressure Pain ◽  
Pressure Pain Thresholds

Individuals who engage in nonsuicidal self-injury (NSSI) have demonstrated higher pain thresholds and tolerance compared with individuals without NSSI. The objective of the study was to assess which aspects of the pain regulatory system that account for this augmented pain perception. In a cross-sectional design, 81 women, aged 18-35 (mean [SD] age, 23.4 [3.9]), were included (41 with NSSI and 40 healthy controls). A quantitative sensory testing protocol, including heat pain thresholds, heat pain tolerance, pressure pain thresholds, conditioned pain modulation (assessing central down-regulation of pain), and temporal summation (assessing facilitation of pain signals) was used. Thermal pain stimuli were assessed during fMRI scanning and NSSI behaviors and clinical symptoms were self-assessed. NSSI participants demonstrated higher pain thresholds during heat and pressure pain compared to controls. During conditioned pain modulation, NSSI participants showed a more effective central down-regulation of pain for NSSI participants. Temporal summation did not differ between the groups. There were no correlations between pain outcomes and NSSI behaviors or clinical characteristics. The fMRI analyses revealed increased activity in the primary and secondary somatosensory cortex in NSSI participants, compared to healthy controls, which are brain regions implicated in sensory aspects of pain processing. The findings suggest segregated inhibitory mechanisms for pain and emotion in NSSI, as pain insensitivity was linked to enhanced inhibitory control of pain in spite of significant impairments in emotion regulation. This may represent an endophenotype associated with a greater risk for developing self-injurious behavior.

scholarly journals A pilot study investigating whether quantitative sensory testing alters after treatment in patients with fibromyalgia

2018 ◽  
Vol 12 (4) ◽  
pp. 250-256 ◽  
Author(s):  
Theresa Wodehouse ◽  
Kavita Poply ◽  
Shankar Ramaswamy ◽  
Saowarat Snidvongs ◽  
Julius Bourke ◽  
...  
Keyword(s):  
Pilot Study ◽  
Quantitative Sensory Testing ◽  
Fibromyalgia Impact Questionnaire ◽  
Pain Modulation ◽  
Conditioned Pain Modulation ◽  
Sensory Testing ◽  
Central Sensitisation ◽  
Pain Thresholds ◽  
Pressure Pain ◽  
Pressure Pain Thresholds

Background: Fibromyalgia is a chronic musculoskeletal pain condition that is often associated with sleep disturbances and fatigue. The pathophysiology of fibromyalgia is not understood, but indirect evidence suggests a central dysfunction of the nociceptive modulating system. The aim of this study was to evaluate whether quantitative sensory testing detects a change in pain thresholds in fibromyalgia patient receiving pregabalin treatment. Methods: A total of 25 patients were recruited for the study and received routine pregabalin, but only 14 patients completed the treatment. Assessment of pressure pain thresholds and changes in conditioned pain modulation using ischaemic pain as a conditioning stimulus were measured at baseline and every 4 weeks for 12 weeks. Fibromyalgia impact questionnaire, PainDETECT and SF-12 were also completed. Results: Patients with fibromyalgia demonstrated a less-efficient conditioned pain modulation at baseline. An efficient conditioned pain modulation was observed at 1 month and this was maintained until the final visit. Pressure pain thresholds (PPTs) showed a significant improvement from baseline. Patients also reported a similar magnitude of improvements in PainDETECT, fibromyalgia impact questionnaire (FIQ) and its impact on daily life and change in outcome for SF-12. Conclusion: This pilot study reports an increase in PPTs and improved conditioned pain modulation response after commencing pregabalin, which was maintained at 12 weeks, and this was supported by positive pain scores. Pregabalin is a licenced treatment for fibromyalgia in Europe, and its response to central sensitisation, particularly ‘dynamic responses’, has not been reported. We conclude that pregabalin has the potential to reduce peripheral and central sensitisation in patients with fibromyalgia, as measured using quantitative sensory testing.

scholarly journals The Relationship between Fibromyalgia and Pressure Pain Threshold in Patients with Dyspareunia

2015 ◽  
Vol 20 (3) ◽  
pp. 137-140 ◽  
Author(s):  
Hasan Terzi ◽  
Rabia Terzi ◽  
Ahmet Kale
Keyword(s):  
Beck Depression Inventory ◽  
Pain Threshold ◽  
Pressure Pain Threshold ◽  
Control Group ◽  
Tender Points ◽  
Pain Thresholds ◽  
Pressure Pain ◽  
Pressure Pain Thresholds ◽  
Pressure Algometer ◽  
Significant Difference

OBJECTIVE: To evaluate the number of tender points, pressure pain threshold and presence of fibromyalgia among women with or without dyspareunia.METHODS: The present cross-sectional study included 40 patients with dyspareunia and 30 healthy controls. The participants were asked if they had engaged in sexual intercourse during the previous four weeks, and dyspareunia was rated from 0 to 3 based on the Marinoff Dyspareunia Scale. A pressure algometer (dolorimeter) was used to measure the pressure pain threshold. Fibromyalgia was diagnosed based on the 1990 American College of Rheumatology criteria. The depression status of the participants was assessed using the Beck Depression Inventory.RESULTS: No statistically significant difference was found with regard to age, body mass index, habits (alcohol use and smoking), educational status and occupational status between the two groups. Total myalgic score, total control score and tender point mean pain threshold were significantly lower in the group with dyspareunia. The number of tender points was significantly higher in patients with dyspareunia. The mean Beck Depression Inventory score was 14.7 ±8.4 in the dyspareunia group compared with 11.2 ±7.1 in the control group. Five (12.5%) of the patients with dyspareunia were diagnosed with fibromyalgia, whereas no patients in the control group were diagnosed with fibromyalgia. There was no significant difference between the two groups with regard to the presence of fibromyalgia.CONCLUSION: The finding of lower pressure pain thresholds and a higher number of tender points among patients with dyspareunia suggests that these patients may have increased generalized pain thresholds. Additional studies involving a larger number of patients are required to investigate the presence of central mechanisms in the pathogenesis of dyspareunia.

Associations Between Bone Mass in Women With Fibromyalgia and Widespread Pressure Pain Hypersensitivity, Tenderness, Perceived Pain Level, and Disability

2019 ◽  
Vol 21 (3) ◽  
pp. 272-278
Author(s):  
María Correa-Rodríguez ◽  
Jamal El Mansouri-Yachou ◽  
Rosa María Tapia-Haro ◽  
Francisco Molina ◽  
Blanca Rueda-Medina ◽  
...  
Keyword(s):  
Bone Mass ◽  
Disease Severity ◽  
Linear Regression Analysis ◽  
Broadband Ultrasound Attenuation ◽  
Healthy Controls ◽  
Pain Thresholds ◽  
Pressure Pain ◽  
Pressure Pain Thresholds ◽  
Global Pain ◽  
The Impact

This study aimed to evaluate the impact of fibromyalgia syndrome (FMS) on bone mass assessed by calcaneal quantitative ultrasound (QUS) in pre- and postmenopausal women and determine whether there are associations between bone status and pressure pain thresholds (PPTs), tender point counts (TPCs), self-reported global pain, or disease severity. Ninety-five women with a diagnosis of FMS and 108 healthy controls matched on menopause status were included in this cross-sectional study. PPT and TPC were measured by algometry pressure. Self-reported global pain and disease severity were evaluated by Visual Analogue Scale and Fibromyalgia Impact Questionnaire, respectively. Bone mass was assessed with calcaneus QUS. Broadband ultrasound attenuation (BUA; dB/MHz) and speed of sound (SOS; m/s) were significantly lower in the FMS patients compared with controls ( p = .027 and p = .003, respectively). Linear regression analysis revealed that all PPTs were significantly associated with the BUA parameter after adjustments for body mass index (BMI), menopause status, and physical activity in women with FMS ( p < .05). TPC was also significantly associated with BUA after adjustments for covariables (β = .241, 95% confidence interval [0.333, 3.754], p = .020). No significant differences were found between any QUS measurements and global pain or disease severity. Calcaneal BUA and SOS values were lower in women with FMS compared to healthy controls, and decreased pain thresholds and higher TPCs were associated with lower calcaneal BUA values. Low pain thresholds might be independent predictors for low bone mass in FMS women.

scholarly journals Pressure-Induced Referred Pain as a Biomarker of Pain Sensitivity in Fibromyalgia

2020 ◽  
Vol 4;23 (7;4) ◽  
pp. E353-E361
Author(s):  
Elizabeth Bravo EstebanHerreros
Keyword(s):  
Pain Sensitivity ◽  
Pain Catastrophizing ◽  
Pressure Pain Threshold ◽  
Referred Pain ◽  
Pain Mechanisms ◽  
Pressure Pain ◽  
Infraspinatus Muscle ◽  
Pain Models ◽  
Pressure Pain Thresholds ◽  
And Gender

Background: Fibromyalgia (FM) syndrome is characterized by widespread pain, fatigue, and generalized increased pain sensitivity. Appropriate and simple pain models are methods employed to assess pain mechanisms that can potentially lead to improved treatments. Pressure pain thresholds (PPTs) or mapping the referred pain area produced by pressure stimulation at suprathreshold intensities are used to assess pain mechanisms. The optimal suprathreshold stimulation intensity to elicit referred pain with minimal discomfort for patients with FM has yet to be determined. Objectives: The aim of this study was to compare the area and intensity of pressure-induced referred pain in patients with FM as elicited by systematic increases in PPTs, compared with controls. Study Design: Observational, crossed-section study. Setting: Research laboratory. Methods: Twenty-six patients with FM and 26 healthy controls, age- and gender-matched, were included. Suprathreshold stimulation was applied to the infraspinatus muscle of the dominant side at 4 different intensities (PPT +20%, +30%, +40%, and +50%), after which referred pain was evaluated by measuring the area of pain in pixels using a digital body chart and its intensity on a Visual Analog Scale. Factors related to anxiety condition, pain catastrophizing, depression, and quality of life were recorded. Results: The referred pain areas were larger in the FM group compared with healthy individuals at 120% (P = 0.024), 130% (P = 0.001), 140% (P = 0.001), and 150% (P = 0.001) PPT, however, within the FM group no differences were found between the intensity of suprathreshold stimulation and the size of the referred pain areas (P = 0.135) or pain intensity (P > 0.05). There was a positive correlation between the size of referred pain areas and pain catastrophizing in the FM group (r = 0.457, P = 0.032). Limitations: This study presents some limitations, among which is the variability found in the referred pain areas. Conclusions: These findings show that referred pain induced by applying a suprathreshold pressure of 120% PPT can be a useful biomarker to assess sensitized pain mechanisms in patients suffering from FM. Key words: Referred pain, pain sensitivity, fibromyalgia, central sensitization, suprathreshold, pressure pain threshold, biomarker, facilitated pain mechanisms

scholarly journals Styles of Pain Coping Predict Cardiovascular Function Following a Cold Pressor Test

2005 ◽  
Vol 10 (4) ◽  
pp. 219-222 ◽  
Author(s):  
Robert R Edwards ◽  
Roger B Fillingim
Keyword(s):  
Pain Catastrophizing ◽  
Coping Styles ◽  
Cardiac Contractility ◽  
Cold Pressor Test ◽  
Cold Pressor ◽  
Cardiovascular Responses ◽  
Pain Coping ◽  
Cold Pain ◽  
Pressor Test ◽  
The Impact

BACKGROUND: While many studies have examined the impact of pain-related coping in adjustment to chronic pain, relatively few have evaluated the physiological consequences of differences in pain-coping styles.OBJECTIVE: The association between strategies for coping with pain and cardiovascular functioning following exposure to painfully cold water was evaluated.METHODS: Impedance cardiography was used to assess cardiovascular functioning in 50 healthy subjects before and after a cold pressor test.RESULTS: The self-reported use of active pain-coping strategies was associated with reductions in mean arterial pressure and cardiac contractility from pre- to post-cold pressor. In contrast, higher levels of pain catastrophizing were related to increases in cardiac contractility following acute cold pain. Importantly, coping variables predicted cardiovascular responses, whereas characteristics of the noxious stimulus (pain tolerance time and pain ratings) did not.CONCLUSIONS: These findings highlight the importance of coping styles in shaping physiological responses to pain and suggest that interventions targeting increases in adaptive coping and decreases in pain catastrophizing may reduce pain's adverse impact.

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