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Kielstra SC, Reezigt RR, Coppieters MW, de Vries R, Arendt-Nielsen L, Petersen KK, Yarnitsky D, Scholten-Peeters GGM. A myriad of methods to determine temporal summation of pain in people with musculoskeletal pain and healthy participants: a scoping review. Pain Rep 2024; 9:e1176. [PMID: 39239632 PMCID: PMC11377091 DOI: 10.1097/pr9.0000000000001176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 04/28/2024] [Accepted: 05/02/2024] [Indexed: 09/07/2024] Open
Abstract
Temporal summation of pain (TSP) is a human proxy for wind-up of dorsal horn neurons as assessed in animals. The common paradigm for eliciting TSP is evoked by repetitive nociceptive stimuli of equal intensity. Various stimulation and assessment protocols have been used. This scoping review aims to provide insight into key elements of TSP stimulation and assessment: modality, instruments, test location, familiarization, train characteristics, and calculations. PubMed, Embase, and Ebsco/CINAHL were searched for studies that measured TSP in adults with musculoskeletal conditions and healthy people. Four hundred six studies were included. Mechanical stimuli were the most commonly used modality (250 studies), followed by thermal stimuli (125 studies). Forty-six different instruments were used. Disregarding studies on widespread musculoskeletal pain and healthy participants, 40 studies evaluated TSP at painful sites, 77 in remote areas, and 66 in both locations. Of the 13 tested locations in patients, the hand (74 studies), lower leg (64 studies), and forearm (59 studies) were most commonly tested. A single practice round was the most common familiarization method (46 studies). Repeated stimuli were applied using 31 different frequencies (0.03-200 Hz) and sustained stimulations ranging from 5 to 1080 seconds were used. Twenty-two different train lengths, 63 different calculations (37 absolute, 19 relative, and 7 alternatives using data directly), and 14 different outcome measures (eg, self-reported pain rating scales and reflex thresholds) were used. Temporal summation of pain protocols vary excessively, hindering the comparison and pooling of results. None of the studies provided substantiation for their protocol choice.
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Affiliation(s)
- Sjoerd C Kielstra
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Amsterdam Movement Sciences Program Musculoskeletal Health, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
- Academy of Health, Department of Physical Therapy, Hanze University of Applied Sciences, Groningen, the Netherlands
| | - Roland R Reezigt
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Amsterdam Movement Sciences Program Musculoskeletal Health, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
- Academy of Health, Department of Physical Therapy, Hanze University of Applied Sciences, Groningen, the Netherlands
| | - Michel W Coppieters
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Amsterdam Movement Sciences Program Musculoskeletal Health, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
- School of Health Sciences and Social Work, and Menzies Health Institute Queensland, Griffith University, Brisbane & Gold Coast, Australia
| | - Ralph de Vries
- Medical Library, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Lars Arendt-Nielsen
- Center for Neuroplasticity and Pain (CNAP), Department of Health Science and Technology, School of Medicine, Aalborg University, Aalborg, Denmark
- Department of Gastroenterology & Hepatology, Mech-Sense, Clinical Institute, Aalborg University Hospital, Aalborg, Denmark
- Steno Diabetes Center North Denmark, Clinical Institute, Aalborg University Hospital, Aalborg, Denmark
| | - Kristian K Petersen
- Center for Neuroplasticity and Pain (CNAP), Department of Health Science and Technology, School of Medicine, Aalborg University, Aalborg, Denmark
| | - David Yarnitsky
- Department of Neurology, Rambam Medical Center, Haifa, Israel
- Laboratory of Clinical Neurophysiology, Technion Faculty of Medicine, Haifa, Israel
| | - Gwendolyne G M Scholten-Peeters
- Department of Human Movement Sciences, Faculty of Behavioural and Movement Sciences, Amsterdam Movement Sciences Program Musculoskeletal Health, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
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Rouhi S, Egorova-Brumley N, Jordan AS. Chronic sleep deficiency and its impact on pain perception in healthy females. J Sleep Res 2024:e14284. [PMID: 38972675 DOI: 10.1111/jsr.14284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 06/19/2024] [Accepted: 06/25/2024] [Indexed: 07/09/2024]
Abstract
Acute sleep deprivation in experimental studies has been shown to induce pain hypersensitivity in females. However, the impact of natural sleep deficiency and fluctuations across the week on pain perception remains unclear. A sleep-monitoring headband and self-reports were utilized to assess objective and subjective sleep in longer (> 6 hr) and short sleepers (< 6 hr). Pain sensitivity measures including heat, cold, pressure pain thresholds, pain inhibition (conditioned pain modulation) and facilitation (tonic pain summation) were assessed on Mondays and Fridays. Forty-one healthy young (23.9 ± 0.74 years) women participated. Short sleepers slept on average 2 hr less than longer sleepers (297.9 ± 8.2 min versus 418.5 ± 10.9 min) and experienced impaired pain inhibitory response (mean = -21.14 ± 7.9°C versus mean = 15.39 ± 9.5°C; p = 0.005). However, no effect was observed in pain thresholds and pain summation (p > 0.05). Furthermore, pain modulatory responses differed between Mondays and Fridays. Chronic sleep deficiency (< 6 hr) compromises pain responses, notably on Mondays. Maintaining a consistent sleep pattern with sufficient sleep (> 6 hr) throughout the week may protect against pain sensitization and the development of chronic pain in females. Further research is needed, especially in patients with chronic pain.
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Affiliation(s)
- Shima Rouhi
- The University of Melbourne, Melbourne, Victoria, Australia
| | | | - Amy S Jordan
- The University of Melbourne, Melbourne, Victoria, Australia
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Herrero Babiloni A, Brazeau D, Jodoin M, Theis-Mahon N, Martel MO, Lavigne GJ, Moana-Filho EJ. The Impact of Sleep Disturbances on Endogenous Pain Modulation: A Systematic Review and Meta-Analysis. THE JOURNAL OF PAIN 2024; 25:875-901. [PMID: 37914093 DOI: 10.1016/j.jpain.2023.10.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 10/18/2023] [Accepted: 10/23/2023] [Indexed: 11/03/2023]
Abstract
The bidirectional relationship between sleep and pain problems has been extensively demonstrated but despite all the accumulating evidence, their shared mechanisms are currently not fully understood. This review examined the association between sleep disturbances, defined as a broad array of sleep-related outcomes (eg, poor quality, short duration, insomnia), and endogenous pain modulation (EPM) in healthy and clinical populations. Our search yielded 6,151 references, and 37 studies met the eligibility criteria. Qualitative results showed mixed findings regarding the association between sleep disturbances and temporal summation of pain (TSP) and conditioned pain modulation (CPM), with poor sleep more commonly associated with decreased pain inhibition in both populations. Quantitative results indicated that such associations were not statistically significant, neither in healthy populations when EPM outcomes were assessed for changes pre-/post-sleep intervention (TSP: .31 [95%CI: -.30 to .92]; P = .321; CPM: .40 [95%CI: -.06 to .85] P = .088) nor in clinical populations when such association was assessed via correlation (TSP: -.00 [95%CI: -.22 to .21] P = .970; CPM: .12 [95%CI: -.05 to .29]; P = .181). For studies that reported results by sex, meta-analysis showed that experimental sleep disturbances impaired pain inhibition in females (1.43 [95%CI: .98-1.88]; P < .001) but not in males (-.30 [95%CI: -2.69 to 1.60]; P = .760). Only one study investigating the association between sleep disturbances and offset analgesia was identified, while no studies assessing spatial summation of pain were found. Overall, this review provides a comprehensive overview of the association between sleep disturbances and EPM function, emphasizing the need for further investigation to clarify specific mechanisms and phenotypic subtypes. PERSPECTIVE: This review shines a light on the association between sleep disturbances and endogenous pain modulation function. Qualitatively, we found a frequent association between reduced sleep quality and impaired pain inhibition. However, quantitatively such an association was not corroborated. Sex-specific effects were observed, with females presenting sleep-related impaired pain inhibition but not males.
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Affiliation(s)
- Alberto Herrero Babiloni
- Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada; Sacre-Coeur Hospital, University of Montreal, Quebec, Canada
| | - Daphnée Brazeau
- Sacre-Coeur Hospital, University of Montreal, Quebec, Canada; Department of Psychology, University of Montreal, Montreal, Quebec, Canada
| | - Marianne Jodoin
- Sacre-Coeur Hospital, University of Montreal, Quebec, Canada; Department of Psychology, University of Montreal, Montreal, Quebec, Canada
| | - Nicole Theis-Mahon
- Health Sciences Libraries, University of Minnesota, Minneapolis, MN, United States
| | - Marc O Martel
- Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada; Faculty of Dentistry, McGill University, Montreal, QC, Canada; Department of Anesthesia, McGill University, Montreal, QC, Canada
| | - Gilles J Lavigne
- Division of Experimental Medicine, McGill University, Montreal, Quebec, Canada; Sacre-Coeur Hospital, University of Montreal, Quebec, Canada; Faculty of Dental Medicine, University of Montreal, Montreal, Quebec, Canada
| | - Estephan J Moana-Filho
- Division of TMD and Orofacial Pain, School of Dentistry, University of Minnesota, Minneapolis, Minnesota
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Rouhi S, Topcu J, Egorova-Brumley N, Jordan AS. The impact of sleep disturbance on pain perception: A systematic review examining the moderating effect of sex and age. Sleep Med Rev 2023; 71:101835. [PMID: 37586144 DOI: 10.1016/j.smrv.2023.101835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 07/27/2023] [Accepted: 08/06/2023] [Indexed: 08/18/2023]
Abstract
Females have increased pain sensitivity and are more vulnerable to chronic pain conditions. Sleep disturbances are comorbid with chronic pain and exacerbate pain symptoms. Different types of sleep disturbance affect pain perception distinctly, but it is not clear if these effects are equal in men and women. This systematic review investigated potential differences in how sleep disturbance affects pain in males and females. We searched EBSCO, MEDLINE, Psych INFO, Science Direct, and Web of Science from January 2001 to November 2022 and found 38 studies with 978 participants. Separate random-effects models were used to estimate the pooled effect sizes based on standardized mean differences (SMDs) of experimental sleep disturbance paradigms on various pain outcomes. Sex moderated the effect of sleep disturbance on pain facilitation (SMD = 0.13; 95%CI: 0.004 to 0.022; p=.009) and pain inhibition (SMD = 0.033; 95%CI: 0.011 to 0.054; p=.005), with increased facilitation and decreased inhibition in females, but the opposite effect in males. Further, age moderated the effects of total sleep deprivation (SMD = -0.194; 95%CI -0.328 to -0.060; p=.008) on pain sensitivity and fragmented sleep (SMD = -0.110; 95%CI: 0.148 to -0.072; p<.001) on pain threshold. While the moderating effect of sex and age on the sleep-pain relationship was small, these factors need to be considered in future sleep-pain research.
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Stroemel-Scheder C, Lautenbacher S. The Effects of Recovery Sleep on Experimental Pain. THE JOURNAL OF PAIN 2023; 24:490-501. [PMID: 36273778 DOI: 10.1016/j.jpain.2022.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022]
Abstract
Recent research suggests that recovery sleep (RS) has the potential to restore pain sensitivity and modulation after hyperalgesia due to preceding sleep deprivation. However, it has not yet been systematically examined whether the restoration of these pain parameters is driven by sleep characteristics of RS. Thus, the present study assessed changes in experimental pain during RS after total sleep deprivation (TSD) to test whether RS parameters predicted the restoration of the pain system. Thirty healthy participants completed one night of habitual sleep, one night of TSD and a subsequent recovery night. At-home sleep during baseline and recovery was assessed using portable polysomnography and a questionnaire. Before and after each night pressure pain thresholds (PPTs), temporal pain summation (TSP) and conditioned pain modulation (CPM) were assessed. PPTs decreased after TSD and increased following RS, indicating a restoration of pain sensitivity after hyperalgesia. RS characteristics did not predict this restoration, suggesting other mechanisms (eg, changes in serotonergic activity) underlying the observed pain changes. TSP indicated a lack of effect of experimental sleep manipulations on excitatory processes whereas CPM lacked sufficient reliability to investigate inhibitory processes. Thus, results indicate moderate effects of sleep manipulations on pain sensitivity, but not on pain modulation. PERSPECTIVE: This article highlights the potential of recovery sleep to let pain thresholds return to normal following their decrease after a night of total sleep deprivation. In contrast, endogenous pain modulation (temporal pain summation, conditioned pain modulation) was not affected by sleep deprivation and recovery sleep.
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Ito H, Navratilova E, Vagnerova B, Watanabe M, Kopruszinski C, Moreira de Souza LH, Yue X, Ikegami D, Moutal A, Patwardhan A, Khanna R, Yamazaki M, Guerrero M, Rosen H, Roberts E, Neugebauer V, Dodick DW, Porreca F. Chronic pain recruits hypothalamic dynorphin/kappa opioid receptor signalling to promote wakefulness and vigilance. Brain 2023; 146:1186-1199. [PMID: 35485490 PMCID: PMC10169443 DOI: 10.1093/brain/awac153] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/08/2022] [Accepted: 03/31/2022] [Indexed: 11/13/2022] Open
Abstract
Increased vigilance in settings of potential threats or in states of vulnerability related to pain is important for survival. Pain disrupts sleep and conversely, sleep disruption enhances pain, but the underlying mechanisms remain unknown. Chronic pain engages brain stress circuits and increases secretion of dynorphin, an endogenous ligand of the kappa opioid receptor (KOR). We therefore hypothesized that hypothalamic dynorphin/KOR signalling may be a previously unknown mechanism that is recruited in pathological conditions requiring increased vigilance. We investigated the role of KOR in wakefulness, non-rapid eye movement (NREM) sleep and rapid eye movement (REM) sleep in freely moving naïve mice and in mice with neuropathic pain induced by partial sciatic nerve ligation using EEG/EMG recordings. Systemic continuous administration of U69,593, a KOR agonist, over 5 days through an osmotic minipump decreased the amount of NREM and REM sleep and increased sleep fragmentation in naïve mice throughout the light-dark sleep cycle. We used KORcre mice to selectively express a Gi-coupled designer receptor activated by designer drugs (Gi-DREADD) in KORcre neurons of the hypothalamic paraventricular nucleus, a key node of the hypothalamic-pituitary-adrenal stress response. Sustained activation of Gi-DREADD with clozapine-N-oxide delivered in drinking water over 4 days, disrupted sleep in these mice in a similar way as systemic U69,593. Mice with chronic neuropathic pain also showed disrupted NREM and total sleep that was normalized by systemic administration of two structurally different KOR antagonists, norbinaltorphimine and NMRA-140, currently in phase II clinical development, or by CRISPR/Cas9 editing of paraventricular nucleus KOR, consistent with endogenous KOR activation disrupting sleep in chronic pain. Unexpectedly, REM sleep was diminished by either systemic KOR antagonist or by CRISPR/Cas9 editing of paraventricular nucleus KOR in sham-operated mice. Our findings reveal previously unknown physiological and pathophysiological roles of dynorphin/KOR in eliciting arousal. Physiologically, dynorphin/KOR signalling affects transitions between sleep stages that promote REM sleep. Furthermore, while KOR antagonists do not promote somnolence in the absence of pain, they normalized disrupted sleep in chronic pain, revealing a pathophysiological role of KOR signalling that is selectively recruited to promote vigilance, increasing chances of survival. Notably, while this mechanism is likely beneficial in the short-term, disruption of the homeostatic need for sleep over longer periods may become maladaptive resulting in sustained pain chronicity. A novel approach for treatment of chronic pain may thus result from normalization of chronic pain-related sleep disruption by KOR antagonism.
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Affiliation(s)
- Hisakatsu Ito
- Department of Pharmacology, University of Arizona, Tucson, USA
- Department of Anesthesiology, University of Toyama, Toyama, Japan
| | - Edita Navratilova
- Department of Pharmacology, University of Arizona, Tucson, USA
- Department of Collaborative Research, Mayo Clinic, Scottsdale, USA
| | | | - Moe Watanabe
- Department of Pharmacology, University of Arizona, Tucson, USA
| | | | | | - Xu Yue
- Department of Pharmacology, University of Arizona, Tucson, USA
| | - Daigo Ikegami
- Department of Pharmacology, University of Arizona, Tucson, USA
| | - Aubin Moutal
- Department of Pharmacology, University of Arizona, Tucson, USA
| | - Amol Patwardhan
- Department of Pharmacology, University of Arizona, Tucson, USA
| | - Rajesh Khanna
- Department of Pharmacology, University of Arizona, Tucson, USA
| | | | - Miguel Guerrero
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, USA
| | - Hugh Rosen
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, USA
| | - Ed Roberts
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, USA
| | - Volker Neugebauer
- Department of Pharmacology and Neuroscience and Garrison Institute on Aging, Texas Tech University Health Sciences Center, Lubbock, USA
| | | | - Frank Porreca
- Department of Pharmacology, University of Arizona, Tucson, USA
- Department of Collaborative Research, Mayo Clinic, Scottsdale, USA
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Azizoddin DR, Soens MA, Beck MR, Flowers KM, Edwards RR, Schreiber KL. Perioperative Sleep Disturbance Following Mastectomy: A Longitudinal Investigation of the Relationship to Pain, Opioid Use, Treatment, and Psychosocial Symptoms. Clin J Pain 2023; 39:76-84. [PMID: 36650603 PMCID: PMC9968504 DOI: 10.1097/ajp.0000000000001090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 10/04/2022] [Indexed: 01/19/2023]
Abstract
OBJECTIVES Sleep disturbance negatively impacts the quality of life and recovery. Our objective was to evaluate the relationship between the individual patient and surgical factors with greater sleep disturbance following breast surgery. METHODS In this prospective longitudinal study, patients completed validated measures regarding sleep disturbance, pain, opioid use, and psychological symptoms preoperatively and then 2 weeks, 6 and 12 months postoperatively. Univariable and multivariable generalized estimating equations evaluated demographic, surgical, pain, and psychological predictors of sleep disturbance during the first year after breast surgery. RESULTS Female patients (n=259) reported varying degrees of sleep disturbance, which were longitudinally associated with pain and psychosocial factors (eg, anxiety, depression, and affect). Independent preoperative predictors of worse sleep disturbance included younger age (B=-0.09, P =0.006), opioid use (B=3.09, P =0.02), and higher pain (B=0.19, P =<0.001) and anxiety (B=0.45, P =<0.001) at baseline. In addition, higher baseline positive affect (B=-0.14, P =<0.012) and the surgical category total mastectomy without reconstruction (B=-2.81, P =<0.006) were independently associated with lower sleep disturbance. Those with worse baseline sleep required more opioid analgesics during surgical recovery, and continued use of opioids at 2 weeks postsurgery was associated with disturbed sleep. DISCUSSION Certain patient characteristics, including younger age and baseline anxiety, positive affect, pain, and opioid use, were associated with greater sleep disturbance in the first year after breast surgery. Sleep disturbance was also associated with the greater perioperative and postoperative opioid requirements. Preoperative interventions (eg, anxiety management, cultivating positive affect, and multimodal pain management) in high-risk individuals may enhance sleep and recovery postoperatively, and allow more moderate and less prolonged opioid use.
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Affiliation(s)
- Desiree R Azizoddin
- Department of Emergency Medicine
- Department of Psychosocial Oncology and Palliative Care, Dana-Farber Cancer Institute, Boston, MA
| | - Mieke A Soens
- Department of Anesthesiology, Perioperative, and Pain Medicine, Brigham and Women's Hospital
| | | | - K Mikayla Flowers
- Department of Anesthesiology, Perioperative, and Pain Medicine, Brigham and Women's Hospital
| | - Robert R Edwards
- Department of Anesthesiology, Perioperative, and Pain Medicine, Brigham and Women's Hospital
| | - Kristin L Schreiber
- Department of Anesthesiology, Perioperative, and Pain Medicine, Brigham and Women's Hospital
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Andersson E, Kander T, Werner MU, Cho JH, Kosek E, Bjurström MF. Analgesic efficacy of sleep-promoting pharmacotherapy in patients with chronic pain: a systematic review and meta-analysis. Pain Rep 2023; 8:e1061. [PMID: 36699991 PMCID: PMC9829257 DOI: 10.1097/pr9.0000000000001061] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 11/05/2022] [Accepted: 11/30/2022] [Indexed: 01/27/2023] Open
Abstract
Dysregulation of sleep heightens pain sensitivity and may contribute to pain chronification. Interventions which consolidate and lengthen sleep have the potential to improve pain control. The main objective of this systematic review was to examine the effects of sleep-promoting pharmacotherapy on pain intensity in patients with chronic pain. Multiple electronic databases were searched from inception to January 2022 to identify relevant randomized controlled trials (RCTs). Two independent reviewers screened titles, abstracts, and full-text articles; extracted data; and assessed risk of bias for each included study. The GRADE approach was used to determine the strength of evidence. The search identified 624 articles. After full-text screening, 10 RCTs (n = 574 randomized participants) involving 3 pharmacologic interventions (melatonin, zopiclone, and eszopiclone) and 7 different chronic pain populations were included. Minimum clinically significant pain reduction ≥30% was reported in 4 studies. There is low-quality evidence (downgraded due to inconsistency and imprecision) that 2 to 8 weeks treatment with a sleep-promoting medication alone or in combination with an analgesic (6 trials, n = 397) decreases pain intensity compared with placebo or the same analgesic treatment alone (SMD -0.58 [95% confidence interval -1.00, -0.17], P = 0.006). Analyses of associations between changes in sleep and pain outcomes were only provided in 2 articles, with inconsistent findings. Notably, pain-relieving effects were most consistent in melatonin trials. Only 3 studies implemented polysomnography to obtain objective sleep measures. Low-quality evidence indicates that pharmacologic sleep promotion may decrease pain intensity in chronic pain populations. More research is needed to fully understand the influence of sleep-targeting interventions on pain control.
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Affiliation(s)
- Emelie Andersson
- Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Thomas Kander
- Department of Clinical Sciences Lund, Lund University, Lund, Sweden.,Department of Anesthesiology and Intensive Care, Skåne University Hospital, Lund, Sweden
| | - Mads U Werner
- Multidisciplinary Pain Center, Neuroscience Center, Copenhagen University Hospital, Copenhagen, Denmark
| | - Joshua H Cho
- Department of Psychiatry and Biobehavioral Sciences, Cousins Center for Psychoneuroimmunology, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California Los Angeles (UCLA), Los Angeles, CA, USA
| | - Eva Kosek
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.,Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Martin F Bjurström
- Department of Clinical Sciences Lund, Lund University, Lund, Sweden.,Department of Anesthesiology and Intensive Care, Skåne University Hospital, Lund, Sweden.,Department of Psychiatry and Biobehavioral Sciences, Cousins Center for Psychoneuroimmunology, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California Los Angeles (UCLA), Los Angeles, CA, USA.,Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
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Basten-Günther J, Peters ML, Lautenbacher S. The Effect of Induced Optimism on Situational Pain Catastrophizing. Front Psychol 2022; 13:900290. [PMID: 35814132 PMCID: PMC9260170 DOI: 10.3389/fpsyg.2022.900290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 06/02/2022] [Indexed: 11/16/2022] Open
Abstract
Background There is broad evidence that optimism is associated with less pain, while pain catastrophizing leads to increased pain. The aim of this study was to examine whether experimentally induced optimism can reduce situational pain catastrophizing and whether this relation is moderated by dispositional optimism and/or dispositional pain catastrophizing. Methods Situational pain catastrophizing during two thermal stimulations was measured in 40 healthy participants with the Situational Catastrophizing Questionnaire (SCQ). Between the two stimulations, the Best Possible Self (BPS) imagery and writing task was performed to induce situational optimism in the experimental group while the control group wrote about their typical day. Questionnaires were administered to assess dispositional optimism [Life Orientation Test-Revised (LOT-R)] and dispositional pain catastrophizing [Pain Catastrophizing Scale (PCS)]. Results There was a significant interaction between the optimism induction and trait pain catastrophizing: the association of trait pain catastrophizing with state pain catastrophizing was weakened after the optimism induction. No overall effect of induced optimism on situational pain catastrophizing and no significant moderating influence of trait optimism were found. Conclusion The state optimism induction apparently counteracted the manifestation of dispositional pain catastrophizing as situational pain catastrophizing. This implies that high trait pain catastrophizers may have especially benefitted from the optimism induction, which is in line with resilience models stressing the buffering role of optimism.
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Affiliation(s)
- Johanna Basten-Günther
- Department of Physiological Psychology, University of Bamberg, Bamberg, Germany
- *Correspondence: Johanna Basten-Günther,
| | - Madelon L. Peters
- Department of Clinical Psychological Science, Maastricht University, Maastricht, Netherlands
| | - Stefan Lautenbacher
- Department of Physiological Psychology, University of Bamberg, Bamberg, Germany
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10
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Stroemel-Scheder C, Lautenbacher S. Assessment of effects of total sleep deprivation and subsequent recovery sleep: a methodological strategy feasible without sleep laboratory. BMC Psychol 2021; 9:141. [PMID: 34526155 PMCID: PMC8442266 DOI: 10.1186/s40359-021-00641-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 08/24/2021] [Indexed: 11/11/2022] Open
Abstract
Background Sleep is critical for maintaining homeostasis in bodily and neurobehavioral functions. This homeostasis can be disturbed by sleep interruption and restored to normal by subsequent recovery sleep. Most research regarding recovery sleep (RS) effects has been conducted in specialized sleep laboratories, whereas small, less-well equipped research units may lack the possibilities to run studies in this area. Hence, the aims of the present study were to develop and validate an experimental protocol, which allows a thorough assessment of at-home recovery sleep after sleep deprivation. Methods The experimental protocol, comprising one night of baseline sleep (BL) at home, one night of monitored total sleep deprivation and a subsequent recovery night at home, was tested in a sample of 30 healthy participants. Subjects’ fatigue and alertness were assessed prior to and after each night. Sleep at home (BL, RS) was objectively assessed using portable polysomnography. To check whether our at-home sleep assessments yielded results that are comparable to those conducted in sleep laboratories, we compared the sleep data assessed in our study with sleep data assessed in laboratory studies. Results Sleep parameters assessed during RS exhibited changes as expected (prolonged total sleep time, better sleep efficiency, slow wave sleep rebound). Sleep parameters of BL and RS were in line with parameters assessed in previous studies examining sleep in a laboratory setting. Fatigue normalized after one night of RS; alertness partly recovered. Conclusions Our results suggest a successful implementation of our new experimental protocol, emphasizing it as a useful tool for future studies on RS outside of well-equipped sleep laboratories.
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Affiliation(s)
- Cindy Stroemel-Scheder
- Department of Physiological Psychology, University of Bamberg, Markusplatz 3, Bamberg, Germany.
| | - Stefan Lautenbacher
- Department of Physiological Psychology, University of Bamberg, Markusplatz 3, Bamberg, Germany
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11
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Kunz M, Bunk SF, Karmann AJ, Bär KJ, Lautenbacher S. Conditioned Pain Modulation (CPM) Effects Captured in Facial Expressions. J Pain Res 2021; 14:793-803. [PMID: 33790641 PMCID: PMC8001584 DOI: 10.2147/jpr.s300313] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 02/26/2021] [Indexed: 11/23/2022] Open
Abstract
Purpose Conditioned pain modulation (CPM) is most often assessed using self-report of pain. However, self-report of pain is not always available (eg in individuals with cognitive impairment) and is susceptible to report bias. In comparison, the facial expression of pain is more reflex-like and represents one of the most sensitive and specific non-verbal signals of pain. The aim of the present study was to investigate whether the facial expression of pain is sensitive enough to capture endogenous pain inhibition as elicited during CPM paradigms. Patients and Methods In total, 26 female participants took part in this study. Facial and verbal responses to phasic heat pain were assessed once while participants immersed their hand in a hot water bath and once without additional stimulation. Facial responses were analyzed using the Facial Action Coding System (FACS). Verbal responses were assessed using a Numerical Rating Scale (NRS). Results Pain-relevant facial responses as well as pain ratings to phasic heat pain were significantly reduced when participants simultaneously immersed their hand in a hot water bath compared to baseline. Thus, CPM effects could be demonstrated both on subjective as well as on facial responses. Moreover, CPM-induced changes in pain-relevant facial responses and in NRS ratings were significantly correlated. Conclusion The present study shows that facial expressions of pain are sensitive enough to capture CPM effects. Given the proven clinical usefulness of assessing CPM, the parallel assessment of verbal and facial CPM effects might be a promising approach with wider scope of applications. Further research in other demographic healthy participant and clinical cohorts is warranted.
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Affiliation(s)
- Miriam Kunz
- Department of Medical Psychology and Sociology, University of Augsburg, Augsburg, Germany
| | - Stefanie F Bunk
- Department of General Practice and Elderly Care Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Anna J Karmann
- Physiological Psychology, Otto-Friedrich University Bamberg, Bamberg, Germany
| | - Karl-Jürgen Bär
- Department of Psychosomatic Medicine and Psychotherapy, University Hospital, Jena, Germany
| | - Stefan Lautenbacher
- Physiological Psychology, Otto-Friedrich University Bamberg, Bamberg, Germany
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