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Mesaroli G, Davidge KM, Davis AM, Perruccio AV, Choy S, Walker SM, Stinson JN. Age and Sex Differences in Pediatric Neuropathic Pain and Complex Regional Pain Syndrome: A Scoping Review. Clin J Pain 2024; 40:428-439. [PMID: 38616343 DOI: 10.1097/ajp.0000000000001217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 04/02/2024] [Indexed: 04/16/2024]
Abstract
BACKGROUND Age and sex differences may exist in the frequency (incidence, prevalence) or symptoms of neuropathic pain (NP) and complex regional pain syndrome (CRPS) due to biopsychosocial factors (eg, neurodevelopment, physiological and hormonal changes, psychosocial differences) that evolve through childhood and adolescence. Age and sex differences may have implications for evaluating screening and diagnostic tools and treatment interventions. OBJECTIVE To map the existing literature on pediatric NP and CRPS with respect to age and sex distributions, and age and sex differences in symptomology and frequency. METHODS A scoping literature review was conducted. Databases were searched from inception to January 2023. Data were collected on study design, setting, demographics, and age and sex differences in frequency and symptoms. RESULTS Eighty-seven studies were included. Distribution of participants with CRPS (n=37 studies) was predominantly early adolescence (10 to 14 y) and female sex, while NP (n=42 studies) was most commonly reported throughout adolescence (10 to 19 y) in both sexes. Forty-one studies examined age and sex differences in frequency; 6 studies reported higher frequency in adolescence. Very few studies (n=11) examined differences in symptomology. DISCUSSION Large epidemiological studies are required to further understand age and sex differences in frequency of pediatric NP and CRPS. Age and sex differences must be considered when evaluating screening and diagnostic tools and treatment interventions to ensure relevance and validity to both sexes and across ages. Validated tools will improve understanding of age-dependent and sex-dependent differences in symptoms, pathophysiology, and psychosocial impact of pediatric NP and CRPS.
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Affiliation(s)
- Giulia Mesaroli
- Department of Physical Therapy, University of Toronto
- Department of Rehabilitation, The Hospital for Sick Children and Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children
| | - Kristen M Davidge
- Division of Plastic and Reconstructive Surgery, The Hospital for Sick Children and Department of Surgery, University of Toronto
| | - Aileen M Davis
- Department of Physical Therapy, University of Toronto
- Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health
| | - Anthony V Perruccio
- Schroeder Arthritis Institute, Krembil Research Institute, University Health Network, and Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto
| | - Samantha Choy
- Department of Physical Therapy, University of Toronto
| | - Suellen M Walker
- UCL Great Ormond Street Institute of Child Health and Great Ormond Street Hospital, London, UK
| | - Jennifer N Stinson
- Lawrence S. Bloomberg Faculty of Nursing, University of Toronto and Child Health Evaluative Sciences, Research Institute, The Hospital for Sick Children, Toronto, ON, Canada
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2
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Tutelman PR, MacKenzie NE, Chambers CT, Coffman S, Cornelissen L, Cormier B, Higgins KS, Phinney J, Blankenburg M, Walker S. Quantitative sensory testing for assessment of somatosensory function in children and adolescents: a scoping review. Pain Rep 2024; 9:e1151. [PMID: 38586595 PMCID: PMC10994437 DOI: 10.1097/pr9.0000000000001151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 01/14/2024] [Accepted: 02/02/2024] [Indexed: 04/09/2024] Open
Abstract
Quantitative sensory testing (QST) refers to a group of noninvasive psychophysical tests that examine responses to a range of calibrated mechanical and thermal stimuli. Quantitative sensory testing has been used extensively in adult pain research and has more recently been applied to pediatric pain research. The aims of this scoping review were to map the current state of the field, to identify gaps in the literature, and to inform directions for future research. Comprehensive searches were run in 5 databases. Titles, abstracts, and full texts were screened by 2 reviewers. Data related to the study aims were extracted and analyzed descriptively. A total of 16,894 unique studies were identified, of which 505 were screened for eligibility. After a full-text review, 301 studies were retained for analysis. Date of publication ranged from 1966 to 2023. However, the majority of studies (61%) were published within the last decade. Studies included participants across the developmental trajectory (ie, early childhood to adolescence) and most often included a combination of school-age children and adolescents (49%). Approximately 23% of studies were conducted in healthy samples. Most studies (71%) used only one QST modality. Only 14% of studies reported using a standardized QST protocol. Quantitative sensory testing in pediatric populations is an emerging and rapidly growing area of pain research. Future work is needed using comprehensive, standardized QST protocols to harness the full potential that this procedure can offer to our understanding of pediatric pain.
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Affiliation(s)
- Perri R. Tutelman
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, Canada
- Centre for Pediatric Pain Research, IWK Health, Halifax, Canada
| | - Nicole E. MacKenzie
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, Canada
- Centre for Pediatric Pain Research, IWK Health, Halifax, Canada
| | - Christine T. Chambers
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, Canada
- Centre for Pediatric Pain Research, IWK Health, Halifax, Canada
- Department of Pediatrics, Dalhousie University, Halifax, Canada
| | - Siobhan Coffman
- Department of Anesthesiology, Critical Care & Pain Medicine, Boston Children's Hospital, Boston, USA
| | - Laura Cornelissen
- Department of Anesthesiology, Critical Care & Pain Medicine, Boston Children's Hospital, Boston, USA
- Department of Anaesthesia, Harvard Medical School, Boston, USA. Cornelissen is now with the Alzheimer's Disease and Brain Health, Eisai Inc, Nutley, NJ, USA
| | | | - Kristen S. Higgins
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, Canada
- Centre for Pediatric Pain Research, IWK Health, Halifax, Canada
| | - Jackie Phinney
- Dalhousie Medicine New Brunswick, Dalhousie University, Saint John, Canada
| | - Markus Blankenburg
- Pediatric Neurology, Psychosomatics and Pain Therapy, Children's Pain Center Baden-Württemberg, Klinikum Stuttgart, Germany
| | - Suellen Walker
- Department of Paediatric Anaesthesia, Great Ormond St Hospital NHS Foundation Trust, London, United Kingdom
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Sieberg CB, Lunde CE, Shafrir AL, Meints SM, Madraswalla M, Huntley D, Olsen H, Wong C, DiVasta AD, Missmer SA, Sethna N. Quantitative somatosensory testing of the abdomen: establishing initial reference values across developmental age and biological sex. Pain 2024; 165:115-125. [PMID: 37530649 PMCID: PMC10822023 DOI: 10.1097/j.pain.0000000000003001] [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: 03/21/2023] [Accepted: 06/07/2023] [Indexed: 08/03/2023]
Abstract
ABSTRACT Abdominal pain is a common symptom of several debilitating conditions (eg, inflammatory bowel disease, irritable bowel syndrome, and endometriosis) and affects individuals throughout their lifespan. Quantitative sensory testing (QST) reference values exist for many body sites but not the abdomen. Using a QST battery adapted from the German Research Network on Neuropathic Pain, we collected QST data on the upper and lower abdomen in 181 pain-free participants, ages 12 to 50 years, to establish reference values by age and biological sex. The normative values are presented as medians for each QST measure by sex (male, n = 63; female, n = 118) and across 3 age categories (adolescents: 12-19 years, n = 48; young adults: 20-30 years, n = 87; and adults: 31-50 years, n = 46). Evaluating the sensory functioning of the abdomen and characterizing ranges of QST measures is an essential first step in understanding and monitoring the clinical course of sensory abnormalities in patients with underlying diseases affecting the abdomen and pelvis. The impact of age and development on sensory functioning is necessary, given age-related changes in pain perception and modulation.
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Affiliation(s)
- Christine B. Sieberg
- Biobehavioral Pain Innovations Lab, Department of Psychiatry & Behavioral Sciences, Boston Children’s Hospital, USA
- Pain and Affective Neuroscience Center, Department of Anesthesiology, Critical Care, and Pain Medicine, Boston Children’s Hospital, USA
- Department of Psychiatry, Harvard Medical School, USA
| | - Claire E. Lunde
- Biobehavioral Pain Innovations Lab, Department of Psychiatry & Behavioral Sciences, Boston Children’s Hospital, USA
- Pain and Affective Neuroscience Center, Department of Anesthesiology, Critical Care, and Pain Medicine, Boston Children’s Hospital, USA
- Nuffield Department of Women’s and Reproductive Health, Medical Sciences Division, University of Oxford, UK
| | - Amy L. Shafrir
- Division of Adolescent/Young Adult Medicine, Department of Pediatrics, Boston Children’s Hospital and Harvard Medical School, Boston, MA, USA
- Boston Center for Endometriosis, Brigham and Women’s Hospital and Boston Children’s Hospital, Boston, MA, USA
| | - Samantha M. Meints
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women’s Hospital, USA
- Department of Anesthesiology, Harvard Medical School, USA
| | - Mehnaz Madraswalla
- Biobehavioral Pain Innovations Lab, Department of Psychiatry & Behavioral Sciences, Boston Children’s Hospital, USA
| | - Devon Huntley
- Biobehavioral Pain Innovations Lab, Department of Psychiatry & Behavioral Sciences, Boston Children’s Hospital, USA
| | - Hannah Olsen
- Biobehavioral Pain Innovations Lab, Department of Psychiatry & Behavioral Sciences, Boston Children’s Hospital, USA
| | - Cindy Wong
- Biobehavioral Pain Innovations Lab, Department of Psychiatry & Behavioral Sciences, Boston Children’s Hospital, USA
| | - Amy D. DiVasta
- Division of Adolescent/Young Adult Medicine, Department of Pediatrics, Boston Children’s Hospital and Harvard Medical School, Boston, MA, USA
- Boston Center for Endometriosis, Brigham and Women’s Hospital and Boston Children’s Hospital, Boston, MA, USA
| | - Stacey A. Missmer
- Division of Adolescent/Young Adult Medicine, Department of Pediatrics, Boston Children’s Hospital and Harvard Medical School, Boston, MA, USA
- Boston Center for Endometriosis, Brigham and Women’s Hospital and Boston Children’s Hospital, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, USA
- Department of Obstetrics, Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, USA
| | - Navil Sethna
- Department of Anesthesiology, Harvard Medical School, USA
- Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children’s Hospital, USA
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Peters A, Bruchmann M, Dellert T, Moeck R, Schlossmacher I, Straube T. Stimulus awareness is associated with secondary somatosensory cortex activation in an inattentional numbness paradigm. Sci Rep 2023; 13:22575. [PMID: 38114726 PMCID: PMC10730535 DOI: 10.1038/s41598-023-49857-w] [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: 06/13/2023] [Accepted: 12/12/2023] [Indexed: 12/21/2023] Open
Abstract
While inattentional blindness and deafness studies have revealed neural correlates of consciousness (NCC) without the confound of task relevance in the visual and auditory modality, comparable studies for the somatosensory modality are lacking. Here, we investigated NCC using functional magnetic resonance imaging (fMRI) in an inattentional numbness paradigm. Participants (N = 44) received weak electrical stimulation on the left hand while solving a demanding visual task. Half of the participants were informed that task-irrelevant weak tactile stimuli above the detection threshold would be applied during the experiment, while the other half expected stimuli below the detection threshold. Unexpected awareness assessments after the experiment revealed that altogether 10 participants did not consciously perceive the somatosensory stimuli during the visual task. Awareness was not significantly modulated by prior information. The fMRI data show that awareness of stimuli led to increased activation in the contralateral secondary somatosensory cortex. We found no significant effects of stimulus awareness in the primary somatosensory cortex or frontoparietal areas. Thus, our results support the hypothesis that somatosensory stimulus awareness is mainly based on activation in higher areas of the somatosensory cortex and does not require strong activation in extended anterior or posterior networks, which is usually seen when perceived stimuli are task-relevant.
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Affiliation(s)
- Antje Peters
- Institute of Medical Psychology and Systems Neuroscience, University Hospital Münster, Von-Esmarch-Straße 52, 48149, Münster, Germany.
- Otto Creutzfeldt Center for Cognitive and Behavioral Neuroscience, University of Münster, 48149, Münster, Germany.
| | - Maximilian Bruchmann
- Institute of Medical Psychology and Systems Neuroscience, University Hospital Münster, Von-Esmarch-Straße 52, 48149, Münster, Germany
- Otto Creutzfeldt Center for Cognitive and Behavioral Neuroscience, University of Münster, 48149, Münster, Germany
| | - Torge Dellert
- Institute of Medical Psychology and Systems Neuroscience, University Hospital Münster, Von-Esmarch-Straße 52, 48149, Münster, Germany
- Otto Creutzfeldt Center for Cognitive and Behavioral Neuroscience, University of Münster, 48149, Münster, Germany
| | - Robert Moeck
- Institute of Medical Psychology and Systems Neuroscience, University Hospital Münster, Von-Esmarch-Straße 52, 48149, Münster, Germany
| | - Insa Schlossmacher
- Institute of Medical Psychology and Systems Neuroscience, University Hospital Münster, Von-Esmarch-Straße 52, 48149, Münster, Germany
- Otto Creutzfeldt Center for Cognitive and Behavioral Neuroscience, University of Münster, 48149, Münster, Germany
| | - Thomas Straube
- Institute of Medical Psychology and Systems Neuroscience, University Hospital Münster, Von-Esmarch-Straße 52, 48149, Münster, Germany
- Otto Creutzfeldt Center for Cognitive and Behavioral Neuroscience, University of Münster, 48149, Münster, Germany
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5
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Li R, Holley AL, Palermo TM, Ohls O, Edwards RR, Rabbitts JA. Feasibility and reliability of a quantitative sensory testing protocol in youth with acute musculoskeletal pain postsurgery or postinjury. Pain 2023; 164:1627-1638. [PMID: 36727891 PMCID: PMC10277219 DOI: 10.1097/j.pain.0000000000002865] [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: 08/17/2022] [Accepted: 12/16/2022] [Indexed: 02/03/2023]
Abstract
ABSTRACT Quantitative sensory testing (QST) is increasingly used in pediatric chronic pain; however, assessment in youth with acute musculoskeletal (MSK) pain is limited. This study evaluated the feasibility, reliability, and sources of variability of a brief QST protocol in 2 clinical samples of youth with acute MSK pain. Participants were 277 youth (M age = 14.5 years, SD = 2.0, range = 11-18 years, 59% female, 81% non-Hispanic) across 3 geographic study sites who completed a QST protocol assessing pressure and thermal pain sensitivity, temporal summation of pain, and conditioned pain modulation 8 weeks after MSK surgery (n = 100) or within 4 weeks after an acute MSK injury (n = 177). High feasibility was demonstrated by protocol completion rates ranging from 97.5% to 100% for each task, with 95.3% of youth completing all tasks. Reliability was high, with reliability coefficients of >0.97 for 7 out of 8 QST parameters and minimal influence of examiner or participating site effects. Younger youth had lower pressure and heat pain thresholds (11-12 vs 13-18 years, d = -0.80 to -0.56) and cold pain tolerance (d = -0.33). Hispanic youth had higher pressure and heat pain thresholds (d = 0.37-0.45) and pain ratings for cold pain tolerance (d = 0.54) compared with non-Hispanic youth. No significant differences were observed in QST values by sex or personal contextual factors at the time of assessment (momentary pain, menstrual period, use of pain medications). Overall findings demonstrate feasibility of a brief QST protocol with youth with diverse acute MSK pain and data provide initial support for the reliability of this QST protocol for multisite research studies.
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Affiliation(s)
- Rui Li
- Center for Child Health, Behavior & Development, Seattle Children’s Research Institute, Seattle, WA, United States
| | - Amy L. Holley
- Division of Psychology, Department of Pediatrics, Oregon Health and Science University (OHSU), Portland, OR, United States
| | - Tonya M. Palermo
- Center for Child Health, Behavior & Development, Seattle Children’s Research Institute, Seattle, WA, United States
- Department of Anesthesiology & Pain Medicine, University of Washington School of Medicine, Seattle, WA, United States
| | - Olivia Ohls
- Center for Child Health, Behavior & Development, Seattle Children’s Research Institute, Seattle, WA, United States
| | - Robert R. Edwards
- Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women’s Hospital, Harvard Medical School, Massachusetts, United States
| | - Jennifer A. Rabbitts
- Department of Anesthesiology & Pain Medicine, University of Washington School of Medicine, Seattle, WA, United States
- Center for Clinical and Translational Research, Seattle Children’s Research Institute, Seattle, Washington, United States
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6
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Wang X, Xia J, Wang W, Lu J, Liu Q, Fan J, Soondrum T, Yu Q, Tan C, Zhu X. Disrupted functional connectivity of the cerebellum with default mode and frontoparietal networks in young adults with major depressive disorder. Psychiatry Res 2023; 324:115192. [PMID: 37054552 DOI: 10.1016/j.psychres.2023.115192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/15/2023] [Accepted: 04/04/2023] [Indexed: 04/15/2023]
Abstract
Cerebellar dysconnectivity has repeatedly been documented in major depressive disorder (MDD). The cerebellum is composed of multiple functionally distinct subunits, and whether those subunits show similar or distinct dysconnectivity patterns with the cerebrum in MDD, is still unclear and needs to be further clarified. In this study, 91 MDD patients (23 male and 68 female) and 59 demographically matched healthy controls (22 male and 37 female) were enrolled to explore the cerebellar-cerebral dysconnectivity pattern in MDD by using the cutting-edge cerebellar partition atlas. Results showed that MDD patients exhibit decreased cerebellar connectivity with cerebral regions of default mode (DMN), frontoparietal networks (FPN), and visual areas. The dysconnectivity pattern was statistically similar across cerebellar subunits, with no significant diagnosis-by-subunit interactions. Correlation analyzes showed that cerebellar-dorsal lateral prefrontal cortex (DLPFC) connectivity is significantly correlated with anhedonia in MDD patients. Such dysconnectivity pattern was not affected by sex, which, however, should be further replicated in larger samples. These findings suggest a generalized disrupted cerebellar-cerebral connectivity pattern in MDD across all cerebellar subunits, which partially accounts for depressive symptoms in MDD, thus highlighting the pivotal role of the disrupted connectivity of cerebellum with DMN and FPN in the neuropathology of depression.
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Affiliation(s)
- Xiang Wang
- Medical Psychological Center, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China; Medical Psychological Institute of Central South University, Changsha, Hunan, China; National Clinical Research Center for Mental Disorders, Changsha, Hunan, China
| | - Jie Xia
- Medical Psychological Center, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China; Medical Psychological Institute of Central South University, Changsha, Hunan, China; National Clinical Research Center for Mental Disorders, Changsha, Hunan, China
| | - Weiyan Wang
- National Clinical Research Center for Mental Disorders, Changsha, Hunan, China; Department of Psychiatry, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Jingjie Lu
- Medical Psychological Center, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China; Medical Psychological Institute of Central South University, Changsha, Hunan, China; National Clinical Research Center for Mental Disorders, Changsha, Hunan, China
| | - Qian Liu
- Medical Psychological Center, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China; Medical Psychological Institute of Central South University, Changsha, Hunan, China; National Clinical Research Center for Mental Disorders, Changsha, Hunan, China
| | - Jie Fan
- Medical Psychological Center, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China; Medical Psychological Institute of Central South University, Changsha, Hunan, China; National Clinical Research Center for Mental Disorders, Changsha, Hunan, China
| | - Tamini Soondrum
- Association Alzheimer of Mauritius, Old Moka Road, Belle Rose, Quatre Bornes, Mauritius
| | - Quanhao Yu
- Medical Psychological Center, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China; Medical Psychological Institute of Central South University, Changsha, Hunan, China; National Clinical Research Center for Mental Disorders, Changsha, Hunan, China
| | - Changlian Tan
- Department of Radiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiongzhao Zhu
- Medical Psychological Center, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China; Medical Psychological Institute of Central South University, Changsha, Hunan, China; National Clinical Research Center for Mental Disorders, Changsha, Hunan, China.
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7
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Nahman-Averbuch H, Li R, Boerner KE, Lewis C, Garwood S, Palermo TM, Jordan A. Alterations in pain during adolescence and puberty. Trends Neurosci 2023; 46:307-317. [PMID: 36842946 DOI: 10.1016/j.tins.2023.01.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 01/16/2023] [Accepted: 01/27/2023] [Indexed: 02/26/2023]
Abstract
During adolescence and puberty, alterations in pain, both experimental and clinical, are observed. In addition, adolescents undergo extensive biopsychosocial changes as they transition from childhood to adulthood. However, a better understanding of how the biopsychosocial changes during adolescence impact pain is needed to improve pain management and develop targeted pain interventions for adolescents. This review synthesizes the literature on alterations in pain during adolescence in humans, describes the potential biopsychosocial factors impacting pain during adolescence, and suggests future research directions to advance the understanding of the impact of adolescent development on pain.
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Affiliation(s)
- Hadas Nahman-Averbuch
- Washington University Pain Center and Division of Clinical and Translational Research, Department of Anesthesiology, Washington University in St Louis School of Medicine, St. Louis, MO, USA.
| | - Rui Li
- Center for Child Health, Behavior and Development, Seattle Children's Research Institute, Seattle, WA, USA
| | - Katelynn E Boerner
- Department of Pediatrics, University of British Columbia, and BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Christopher Lewis
- Division of Endocrinology and Diabetes, Department of Pediatrics, Washington University in St. Louis, St. Louis, MO, USA; Transgender Center at St. Louis Children's Hospital, Washington University School of Medicine, St. Louis, MO, USA
| | - Sarah Garwood
- Transgender Center at St. Louis Children's Hospital, Washington University School of Medicine, St. Louis, MO, USA
| | - Tonya M Palermo
- Center for Child Health, Behavior and Development, Seattle Children's Research Institute, Seattle, WA, USA; Department of Anesthesiology and Pain Medicine, University of Washington School of Medicine, Seattle, WA, USA
| | - Abbie Jordan
- Department of Psychology and Centre for Pain Research, University of Bath, Bath, United Kingdom
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We need to talk: The urgent conversation on chronic pain, mental health, prescribing patterns and the opioid crisis. J Psychopharmacol 2023; 37:437-448. [PMID: 37171242 DOI: 10.1177/02698811221144635] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
The opioid crisis’ pathways from first exposure onwards to eventual illnesses and fatalities are multiple, intertwined and difficult to dissect. Here, we offer a multidisciplinary appraisal of the relationships among mental health, chronic pain, prescribing patterns worldwide and the opioid crisis. Because the opioid crisis’ toll is especially harsh on young people, emphasis is given on data regarding the younger strata of the population. Because analgesic opioid prescription constitute a recognised entry point towards misuse, opioid use disorder, and ultimately overdose, prescribing patterns across different countries are examined as a modifiable hazard factor along these pathways of risk. Psychiatrists are called to play a more compelling role in this urgent conversation, as they are uniquely placed to provide synthesis and lead action among the different fields of knowledge and care that lie at the crossroads of the opioid crisis. Psychiatrists are also ideally positioned to gauge and disseminate the foundations for diagnosis and clinical management of mental conditions associated with chronic pain, including the identification of hazardous and protective factors. It is our hope to spark more interdisciplinary exchanges and encourage psychiatrists worldwide to become leaders in an urgent conversation with interlocutors from the clinical and basic sciences, policy makers and stakeholders including clients and their families.
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9
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Kamper-Fuhrmann E, Winkler A, Hahn A, Hermann C. The Hand-Withdrawal-Method - An adapted and simplified method of limits for behavioral heat pain assessment. THE JOURNAL OF PAIN 2022; 24:888-900. [PMID: 36581042 DOI: 10.1016/j.jpain.2022.12.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 12/07/2022] [Accepted: 12/17/2022] [Indexed: 12/28/2022]
Abstract
The method-of-limits (MLI) is an established psychophysical procedure, for example for determining thermal thresholds. The standard MLI relies on fixating the thermode at the stimulation site by means of a strap and requires the participant to terminate the increase in heat by pressing a button. This, however, raises concerns regarding safety and task complexity in specific populations, such as cognitively impaired individuals, people with high fear of pain or young children (< 6 years). In this study, we aimed at developing a simplified version of the commonly used MLI for testing heat pain threshold (HPT) and tolerance (HPTol), and at validating it as a first step in healthy adults. Heating is terminated by withdrawing the hand from the heat probe, thereby ensuring maximum control and safety. For validation, HPTs and HPTols were assessed with the novel "hand-withdrawal-method" (HWM) and compared to the standard MLI, using a within-subject design. Additionally, as one potential research area in which the HWM may be used, we explored expectancy-induced placebo hypoalgesic effects by comparing results of standard MLI with those of HWM. Our data confirm good concordance between the 2 methods. For none of the outcomes significant differences between the 2 methods were found. PERSPECTIVE: In the present study in healthy adults, an adapted simplified and safe method of limits was demonstrated to be equivalent to the standard method-of-limits. This novel behavioral "hand-withdrawal-method" seems promising for future investigations of pain sensitivity and placebo effects, especially for specific populations such as young children.
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Affiliation(s)
- Elisa Kamper-Fuhrmann
- Department of Clinical Psychology, Justus-Liebig-University Giessen, Giessen, Germany
| | - Alexander Winkler
- Department of Clinical Psychology, Justus-Liebig-University Giessen, Giessen, Germany
| | - Alannah Hahn
- Department of Clinical Psychology, Justus-Liebig-University Giessen, Giessen, Germany
| | - Christiane Hermann
- Department of Clinical Psychology, Justus-Liebig-University Giessen, Giessen, Germany.
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10
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Bruneau A, Carrié S, Moscaritolo L, Ingelmo P. Mechanism-Based Pharmacological Treatment for Chronic Non-cancer Pain in Adolescents: Current Approaches and Future Directions. Paediatr Drugs 2022; 24:573-583. [PMID: 36053398 DOI: 10.1007/s40272-022-00534-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/22/2022] [Indexed: 11/26/2022]
Abstract
Chronic non-cancer pain in pediatrics is a widespread phenomenon that affects about 20% of adolescents (10-19 years old). Although interdisciplinary pain treatment programs, which often include pharmacological treatment, have emerged as the standard of care in management of this patient population, evidence regarding an optimal treatment is lacking. The efficacy and safety profiles of pharmacological treatments used to help adolescents suffering from chronic non-cancer pain remain understudied. This lack of evidence may increase polypharmacy and the risk of drug interactions and adverse events. This review examines evidence for the use of pharmacological treatments prescribed to treat chronic pain in adolescents (10-19 years old), with a focus on mechanism-based pharmacology. The objectives of this review are to: (a) review the evidence for mechanism-based pharmacological treatments for chronic non-cancer pain in adolescents and (b) describe the pharmacological agents that are commonly prescribed to manage chronic pain in adolescents, including dosage information, mechanism, and potential adverse effects. Pharmacological treatments should be used carefully with adolescents, ideally within an interdisciplinary treatment program that will incorporate physical rehabilitation, integrative medicine/active mind-body techniques, psychology, and global efforts to normalize daily activities.
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Affiliation(s)
- Alice Bruneau
- Faculty of Medicine, McGill University, Montreal, QC, H3A 0C7, Canada.
| | - Sabrina Carrié
- Edwards Family Interdisciplinary Center for Complex Pain, Montreal Children's Hospital, Montreal, QC, Canada
- Department of Anaesthesia, McGill University, Montreal, QC, Canada
| | - Lorenzo Moscaritolo
- Edwards Family Interdisciplinary Center for Complex Pain, Montreal Children's Hospital, Montreal, QC, Canada
- Department of Anaesthesia, McGill University, Montreal, QC, Canada
| | - Pablo Ingelmo
- Edwards Family Interdisciplinary Center for Complex Pain, Montreal Children's Hospital, Montreal, QC, Canada
- Department of Anaesthesia, McGill University, Montreal, QC, Canada
- Alan Edward Centre for Research on Pain, Montreal, QC, Canada
- Research Institute, McGill University Health Center, Montreal, QC, Canada
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Teel EF, Ocay DD, Blain-Moraes S, Ferland CE. Accurate classification of pain experiences using wearable electroencephalography in adolescents with and without chronic musculoskeletal pain. FRONTIERS IN PAIN RESEARCH 2022; 3:991793. [PMID: 36238349 PMCID: PMC9552004 DOI: 10.3389/fpain.2022.991793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 09/14/2022] [Indexed: 11/23/2022] Open
Abstract
Objective We assessed the potential of using EEG to detect cold thermal pain in adolescents with and without chronic musculoskeletal pain. Methods Thirty-nine healthy controls (15.2 ± 2.1 years, 18 females) and 121 chronic pain participants (15.0 ± 2.0 years, 100 females, 85 experiencing pain ≥12-months) had 19-channel EEG recorded at rest and throughout a cold-pressor task (CPT). Permutation entropy, directed phase lag index, peak frequency, and binary graph theory features were calculated across 10-second EEG epochs (Healthy: 292 baseline / 273 CPT epochs; Pain: 1039 baseline / 755 CPT epochs). Support vector machine (SVM) and logistic regression models were trained to classify between baseline and CPT conditions separately for control and pain participants. Results SVM models significantly distinguished between baseline and CPT conditions in chronic pain (75.2% accuracy, 95% CI: 71.4%–77.1%; p < 0.0001) and control (74.8% accuracy, 95% CI: 66.3%–77.6%; p < 0.0001) participants. Logistic regression models performed similar to the SVM (Pain: 75.8% accuracy, 95% CI: 69.5%–76.6%, p < 0.0001; Controls: 72.0% accuracy, 95% CI: 64.5%–78.5%, p < 0.0001). Permutation entropy features in the theta frequency band were the largest contributor to model accuracy for both groups. Conclusions Our results demonstrate that subjective pain experiences can accurately be detected from electrophysiological data, and represent the first step towards the development of a point-of-care system to detect pain in the absence of self-report.
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Affiliation(s)
- Elizabeth F. Teel
- Department of Health, Kinesiology, & Applied Physiology, School of Physical and Occupational Therapy, McGill University, Montreal, QC, Canada
| | - Don Daniel Ocay
- Department of Experimental Surgery, McGill University, Montreal, QC, Canada
- Shriners Hospitals for Children-Canada, Montreal, QC, Canada
| | - Stefanie Blain-Moraes
- Montreal General Hospital, McGill University Health Centre, Montreal, QC, Canada
- School of Physical and Occupational Therapy, McGill University, Montreal, QC, Canada
- Correspondence: Stefanie Blain-Moraes
| | - Catherine E. Ferland
- Shriners Hospitals for Children-Canada, Montreal, QC, Canada
- Montreal General Hospital, McGill University Health Centre, Montreal, QC, Canada
- Department of Anesthesia, McGill University, Montreal, QC, Canada
- Research Institute-McGill University Health Centre, Montreal, QC, Canada
- Alan Edwards Research Center for Pain, McGill University, Montreal, QC, Canada
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12
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Tutelman PR, Chambers CT, Cornelissen L, Fernandez CV, Flanders A, MacLeod J, Sherry SB, Stewart SH, Urquhart R, de Gagne S, Guilcher GM, Hashmi J, Heathcote LC, Noel M, Schulte FS, Stinson JN, Stern M. Long-term alterations in somatosensory functioning in survivors of childhood cancer. Pain 2022; 163:1193-1205. [PMID: 34855647 PMCID: PMC9100454 DOI: 10.1097/j.pain.0000000000002486] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/06/2021] [Accepted: 09/09/2021] [Indexed: 11/26/2022]
Abstract
ABSTRACT Cancer and its treatment can have lasting consequences on somatosensation, including pain, which is often underrecognized and undertreated. Research characterizing the impact of cancer on pain and sensory processing in survivors of childhood cancer is scarce. This study aimed to quantify generalized differences in pain and sensory processing in survivors of childhood cancer compared with reference data using a standardized thermal and mechanical quantitative sensory testing (QST) protocol. The association between demographic, clinical (eg, leukemia vs other cancers and treatment exposures), and psychosocial (eg, anxiety and pain catastrophizing) variables and sensitivity to pain and sensory stimuli were also evaluated. Participants were 56 survivors of various types of childhood cancer (52% male, Mage = 13.5 years, SD = 3.2, range = 8-17 years). On average, children were 7 years (SD = 4.1, range = 1.2-16.5) post treatment. Almost all participants (86%) had at least 1 abnormal QST parameter compared with age- and sex-matched reference data; however, few participants self-reported the presence of sensory abnormalities. Generally, participants exhibited reduced sensitivity across the QST parameters examined (Ps < 0.05, ds = 0.40-3.45). A significant minority (45%) also exhibited pain sensitization (P <0.001, d = 0.42). Several risk factors for changes in sensory processing were identified, including current age, history of leukemia, certain treatment exposures (eg, vincristine cumulative dose, major surgery, and bone marrow or stem cell transplant), time off treatment, and higher anxiety and pain catastrophizing scores. Overall, this study demonstrated that somatosensory changes are prevalent in survivors of childhood cancer years after the completion of treatment. Future research is needed to understand long-term implications of altered somatosensation in this complex population.
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Affiliation(s)
- Perri R. Tutelman
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, NS, Canada
- Centre for Pediatric Pain Research, IWK Health Centre, Halifax, NS, Canada
| | - Christine T. Chambers
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, NS, Canada
- Centre for Pediatric Pain Research, IWK Health Centre, Halifax, NS, Canada
| | - Laura Cornelissen
- Department of Anesthesiology, Critical Care & Pain Medicine, Boston Children's Hospital, Boston, MA, United States
- Department of Anaesthesia, Harvard Medical School, Boston, MA, United States
| | - Conrad V. Fernandez
- Division of Pediatric Hematology‐Oncology, IWK Health Centre, Halifax, NS, Canada
- Departments of Pediatrics and Bioethics, Dalhousie University, Halifax, NS, Canada
| | - Annette Flanders
- Division of Pediatric Hematology‐Oncology, IWK Health Centre, Halifax, NS, Canada
| | | | - Simon B. Sherry
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, NS, Canada
| | - Sherry H. Stewart
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, NS, Canada
- Department of Psychiatry, Dalhousie University, Halifax, NS, Canada
| | - Robin Urquhart
- Department of Community Health and Epidemiology, Dalhousie University, Halifax, NS, Canada
| | | | - Gregory M.T. Guilcher
- Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Haematology, Oncology & Transplant Program, Alberta Children's Hospital, Calgary, AB, Canada
- Department of Oncology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Javeria Hashmi
- Department of Anesthesia, Pain Management, and Perioperative Medicine, Dalhousie University, Halifax, NS, Canada
| | - Lauren C. Heathcote
- Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University Medical School, Stanford, CA, United States
| | - Melanie Noel
- Department of Psychology, University of Calgary, Calgary, AB, Canada
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada
- Hotchkiss Brain Institute, Calgary, AB, Canada
| | - Fiona S.M. Schulte
- Haematology, Oncology & Transplant Program, Alberta Children's Hospital, Calgary, AB, Canada
- Department of Oncology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada
| | - Jennifer N. Stinson
- Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, ON, Canada
- Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Toronto, ON, Canada
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13
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Eitner L, Maier C, Brinkmann F, Schlegtendal A, Knoke L, Enax-Krumova E, Lücke T. Somatosensory abnormalities after infection with SARS-CoV-2 - A prospective case-control study in children and adolescents. Front Pediatr 2022; 10:977827. [PMID: 36263148 PMCID: PMC9574195 DOI: 10.3389/fped.2022.977827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/01/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Long-term neurological complaints after SARS-CoV-2 infection occur in 4-66% of children and adolescents. Controlled studies on the integrity of the peripheral nerve system are scarce. Therefore, we examined the somatosensory function in children and adolescents after SARS-CoV-2 infection in a case-control study compared with age-matched individuals. MATERIALS AND METHODS Eighty-one subjects after SARS-CoV-2 infection (n = 44 female, 11.4 ± 3.5 years, n = 75 SARS-CoV-2 seropositive, n = 6 PCR positive during infection and SARS-CoV-2 seronegative at the time point of study inclusion, n = 47 asymptomatic infection) were compared to 38 controls without SARS-CoV-2 infection (26 female, 10.3 ± 3.4 years, n = 15 with other infection within last 6 months). After standardised interviews and neurological examinations, large fibre (tactile and vibration detection thresholds) and small fibre (cold and warm detection thresholds, paradoxical heat sensation) functions were assessed on both feet following a validated protocol. After z-transformation of all values, all participants were compared to published reference values regarding the number of abnormal results. Additionally, the mean for all sensory parameters values of both study groups were compared to an ideal healthy population (with z-value 0 ± 1), as well as with each other, as previously described. Statistical analyses: t-test, Chi-squared test, and binominal test. FINDINGS None of the controls, but 27 of the 81 patients (33%, p < 0.001) reported persistent complaints 2.7 ± 1.9 (0.8-8.5) months after SARS-CoV-2 infection, most often reduced exercise capacity (16%), fatigue (13%), pain (9%), or paraesthesia (6%). Reflex deficits or paresis were missing, but somatosensory profiles showed significantly increased detection thresholds for thermal (especially warm) and vibration stimuli compared to controls. Approximately 36% of the patients after SARS-CoV-2, but none of the controls revealed an abnormal sensory loss in at least one parameter (p < 0.01). Sensory loss was characterised in 26% by large and 12% by small fibre dysfunction, the latter appearing more frequently in children with prior symptomatic SARS-CoV-2 infection. Myalgia/paraesthesia was indicative of somatosensory dysfunction. In all eight re-examined children, the nerve function recovered after 2-4 months. INTERPRETATION This study provides evidence that in a subgroup of children and adolescents previously infected with SARS-CoV-2, regardless of their complaints, the function of large or small nerve fibres is presumably reversibly impaired.
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Affiliation(s)
- Lynn Eitner
- Department of Neuropediatrics, University Children's Hospital, Ruhr University Bochum, Bochum, Germany.,University Children's Hospital, Ruhr University Bochum, Bochum, Germany
| | - Christoph Maier
- University Children's Hospital, Ruhr University Bochum, Bochum, Germany
| | - Folke Brinkmann
- University Children's Hospital, Ruhr University Bochum, Bochum, Germany
| | - Anne Schlegtendal
- University Children's Hospital, Ruhr University Bochum, Bochum, Germany
| | - Leona Knoke
- University Children's Hospital, Ruhr University Bochum, Bochum, Germany
| | - Elena Enax-Krumova
- Department of Neurology, BG University Hospital Bergmannsheil gGmbH, Ruhr-University Bochum, Bochum, Germany
| | - Thomas Lücke
- Department of Neuropediatrics, University Children's Hospital, Ruhr University Bochum, Bochum, Germany.,University Children's Hospital, Ruhr University Bochum, Bochum, Germany
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Lucas R, Brandão M, Gorito V, Talih M. Refining the prediction of multisite pain in 13-year-old boys and girls by using parent-reported pain experiences in the first decade of life. Eur J Pain 2021; 26:695-708. [PMID: 34904323 PMCID: PMC9305734 DOI: 10.1002/ejp.1898] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 12/10/2021] [Indexed: 11/11/2022]
Abstract
Background We evaluated different pain profiles as prospective predictors of multisite pain in 13‐year‐old adolescents (1300 girls and 1457 boys) enrolled in Generation XXI, a birth cohort study in Portugal. Methods Pain history was queried using the Luebeck Pain Questionnaire through parent proxy‐ (ages 7 and 10) and adolescent (age 13) self‐reports. We estimated the risk of multisite pain (2 or more pain sites) at age 13, according to previous pain experiences, including accumulation and timing. We defined five profiles that combined adverse features at ages 7 and 10 (recurrence, multisite, frequency, duration, intensity, triggers, activity restrictions, passive coping, and family history) and estimated their relative risks (RR) and likelihood ratios (LR) for adolescent multisite pain. Results At age 13, 39.2% of girls and 27.2% of boys reported multisite pain in the previous three months. The risk was higher among girls with multisite and recurrent pain at ages 7 and 10 than in girls without those adverse features, especially if psychosocial triggers were also present (RR 1.87; 95% confidence interval 1.36, 2.36 and LR 3.49; 1.53, 7.96). Boys with recurrent pain of higher frequency and causing activity restrictions at ages 7 and 10 had a higher risk of multisite pain at 13 (RR 2.05; 1.03, 3.05 and LR 3.06; 1.12, 8.39). Earlier adverse experiences were more predictive of future pain in girls than in boys. Conclusions Different profiles were useful to rule in future multisite pain in boys and girls. This provides clues for early stratification of chronic pain risk. Significance We identified sex‐specific pain features that can be collected by practitioners in the first decade of life to improve the stratification of children in terms of their future risk of a maladaptive pain experience in adolescence. Using a prospective population‐based cohort design, we show that early multisite pain and psychosocial triggers are relevant predictors of future multisite pain in girls, whereas repeated reports of high‐frequency pain leading to activity restrictions are predictive of adolescent multisite pain in boys.
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Affiliation(s)
- Raquel Lucas
- EPIUnit (Epidemiology Research Unit), ITR (Laboratory for Integrative and Translational Research in Population Health), Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal.,Departamento de Ciências da Saúde Pública e Forenses e Educação Médica, Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - Maria Brandão
- EPIUnit (Epidemiology Research Unit), ITR (Laboratory for Integrative and Translational Research in Population Health), Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
| | - Vanessa Gorito
- EPIUnit (Epidemiology Research Unit), ITR (Laboratory for Integrative and Translational Research in Population Health), Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal.,Department of Pediatrics, Centro Hospitalar Universitário São João, Porto, Portugal
| | - Makram Talih
- EPIUnit (Epidemiology Research Unit), ITR (Laboratory for Integrative and Translational Research in Population Health), Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
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15
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Morris MC, Bruehl S, Stone AL, Garber J, Smith C, Palermo TM, Walker LS. Place and Pain: Association Between Neighborhood SES and Quantitative Sensory Testing Responses in Youth With Functional Abdominal Pain. J Pediatr Psychol 2021; 47:446-455. [PMID: 34757421 DOI: 10.1093/jpepsy/jsab113] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 10/08/2021] [Accepted: 10/08/2021] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVE Neighborhood socioeconomic status (SES) is linked to self-reported pain severity and disability but its association with evoked pain responsiveness in individuals with chronic pain remains unclear. The present study examined relations between neighborhood SES, assessed through the area deprivation index (ADI), and static and dynamic pain response indices. It was hypothesized that youth with functional abdominal pain (FAP) living in lower SES neighborhoods would exhibit lower pain threshold, lower pain tolerance, and reduced conditioned pain modulation (CPM) compared to youth living in higher SES neighborhoods. METHODS Participants were 183 youth with FAP and their parents. Youth completed a quantitative sensory testing protocol. Family addresses were used to compute ADI scores. Thermal stimuli for pain threshold and tolerance were delivered to participants' forearms using thermodes. CPM, an index of descending pain inhibition, was determined using a thermode as test stimulus and a hot water bath as conditioning stimulus. RESULTS As hypothesized, youth with FAP living in lower SES neighborhoods exhibited weaker CPM. Contrary to hypotheses, lower neighborhood SES was associated with neither pain thresholds nor with pain tolerance. CONCLUSIONS These findings demonstrated the independent contribution of place of residence-an often neglected component of the biopsychosocial model-to efficiency of descending pain inhibition. Understanding the mechanisms that account for such associations between place and pain could guide the development of public health and policy initiatives designed to mitigate chronic pain risk in underserved and economically marginalized communities.
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Affiliation(s)
- Matthew C Morris
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, USA
| | - Stephen Bruehl
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Amanda L Stone
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Judy Garber
- Department of Psychology and Human Development, Vanderbilt University, Nashville, TN, USA
| | - Craig Smith
- Department of Psychology and Human Development, Vanderbilt University, Nashville, TN, USA
| | - Tonya M Palermo
- Department of Anesthesiology and Pain Medicine, University of Washington School of Medicine, Seattle, WA, USA
| | - Lynn S Walker
- Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN, USA
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16
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Assessment of pain associated with chronic pancreatitis: An international consensus guideline. Pancreatology 2021; 21:1256-1284. [PMID: 34391675 DOI: 10.1016/j.pan.2021.07.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 07/16/2021] [Accepted: 07/16/2021] [Indexed: 12/11/2022]
Abstract
Pain is the most common symptom in chronic pancreatitis (CP) with a major impact on quality of life. Few validated questionnaires to assess pain in CP exist, and the lack of consensus negatively impacts clinical management, research and meta-analysis. This guideline aims to review generic pain questionnaires for their usability in CP, to outline how pain assessment can be modified by confounding factors and pain types, to assess the value of additional measures such as quality of life, mental health and quantitative sensory testing, and finally to review pain assessment questionnaires used specifically in CP. A systematic review was done to answer 27 questions that followed the PICO (Population; Intervention; Comparator; Outcome) template. Quality of evidence of the statements was judged by Grades of Recommendation, Assessment, Development and Evaluation (GRADE) criteria. The manuscript was sent for review to 36 experts from various disciplines and continents in a multi-stage Delphi process, and finally reviewed by patient representatives. Main findings were that generic pain instruments are valid in most settings, but aspects of pain are specific for CP (including in children), and instruments have to account for the wide phenotypic variability and development of sensitization of the central nervous system. Side effects to treatment and placebo effects shall also be considered. Some multidimensional questionnaires are validated for CP and are recommended together with assessment of quality of life and psychiatric co-morbidities. This guideline will result in more homogeneous and comprehensive pain assessment to potentially improve management of painful CP.
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17
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Perceived Pain during Rapid Maxillary Expansion (RME): Trends, Anatomical Distinctions, and Age and Gender Correlations. Pain Res Manag 2021; 2021:7396466. [PMID: 34336069 PMCID: PMC8295004 DOI: 10.1155/2021/7396466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/08/2021] [Accepted: 07/05/2021] [Indexed: 11/17/2022]
Abstract
Objectives To investigate pain trends and characteristics of different facial districts in patients undergoing rapid maxillary expansion (RME) and its possible correlations with age and gender. Materials and Methods 85 subjects (45 males and 40 females) undergoing RME were selected and analyzed during first two weeks of treatment. Patients rated daily two types of pain perception: the general perceived pain (GPP), i.e., the pain overall perceived in the face, and the local perceived pain (LPP), i.e., the pain perceived locally in the following anatomical areas: anterior palate (APA), posterior palate (PPA), nasal (NA), joint (JA), and zygomatic (ZA). Patients were provided the Numeric Rating Scale (NRS) and Wong–Baker Faces Pain Rating Scale (FPS) to correctly assess their GPP and LPP. Pearson correlation coefficient and analysis of variance (ANOVA) were, respectively, used to define the linear relationship between all the variables considered and to verify whether the response variables (gender and age) were significantly different (α < 0.05). Results Sample's mean age was 10.11 years. Average pain values of GPP and LPP progressively rise from day 1 to days 2-3 (pain peak) and tended to decrease until day 14, with a linear decrease for GPP and a not linear decrease for LPP. PPA and APA resulted the most painful areas, followed, respectively, by JA, ZA, and NA. Statistically significant differences resulted in average pain values according to patients' age and gender, both in GPP and LPP. Conclusion RME causes perception of pain in several maxillofacial areas. Pain reported during RME resulted positively correlated with age and gender of patients.
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18
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Cummins TM, English O, Minnis H, Stahl D, O’Connor RC, Bannister K, McMahon SB, Ougrin D. Assessment of Somatosensory Function and Self-harm in Adolescents. JAMA Netw Open 2021; 4:e2116853. [PMID: 34255048 PMCID: PMC8278268 DOI: 10.1001/jamanetworkopen.2021.16853] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 05/11/2021] [Indexed: 01/10/2023] Open
Abstract
Importance Self-harm is a risk factor for suicide in adolescents, with the prevalence highest in young people in group and residential care programs. Although no established risk factors for self-harm exist, adolescents who self-harm may have decreased pain sensitivity, but this has not been systematically investigated. Objective To assess somatosensory function using quantitative sensory testing (QST) in children and adolescents living in care grouped by the number of episodes of self-harm in the past year and compare their somatosensory profiles with community control participants to investigate associations with the incidence or frequency of self-harm. Design, Setting, and Participants Recruitment for this cross-sectional study began January 2019 and ended March 2020. Exclusion criteria included intellectual disability (intelligence quotient <70), autism spectrum disorder, or recent serious injury. Children and adolescents aged 12 to 17 years with no underlying health conditions were recruited from local authority residential care settings in Glasgow, UK, and schools and youth groups in London and Glasgow, UK. The volunteer sample of 64 participants included adolescents ages 13 to 17 years (34 [53%] females; 50 [78%] living in residential care; mean [SD] age, 16.34 [1.01] years) with varying incidents of self-harm in the past year (no episodes, 31 [48%]; 1-4 episodes, 12 [19%]; and ≥5 episodes, 2 [33%]). Exposures Participants were tested using a standardized QST protocol to establish baseline somatosensory function. Main Outcomes and Measures Associations between somatosensory sensitivity, incidence and frequency of self-harm, residential status, age, gender, and prescription medication were calculated. Secondary outcomes assessed whether self-harm was associated with specific types of tests (ie, painful or nonpainful). Results A total of 64 participants ages 13 to 17 years completed testing (mean [SD] age, 16.3 [1.0] years; 34 [53%.] females and 30 [47%] males; 50 [78%] living in group homes). Adolescents with 5 or more self-harm incidences showed significant pain hyposensitivity compared with community control participants after adjusting for age, gender, and prescription drug use (SH group with 5 or more episodes vs control: -1.03 [95% CI, -1.47 to -0.60]; P < .001). Hyposensitivity also extended to nonpainful stimuli, similarly adjusted (SH group with 5 or more episodes vs control: -1.73; 95% CI, -2.62 to -0.84; P < .001). Pressure pain threshold accounted for most of the observed variance (31.1% [95% CI, 10.5% to 44.7%]; P < .001). Conclusions and Relevance The findings of this study suggest that sensory hyposensitivity is a phenotype of Adolescents who self-harm and that pressure pain threshold has clinical potential as a quick, inexpensive, and easily interpreted test to identify adolescents at increased risk of repeated self-harm.
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Affiliation(s)
- Tatum M. Cummins
- Neurorestoration, Institute of Psychiatry, Psychology, and Neuroscience, King’s College London, London, United Kingdom
- Central Modulation of Pain, Institute of Psychiatry, Psychology, and Neuroscience, King’s College London, London, United Kingdom
| | - Oliver English
- Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom
| | - Helen Minnis
- Adverse Childhood Experiences Clinical and Research Centre, Institute of Health and Wellbeing, University of Glasgow, Glasgow, United Kingdom
| | - Daniel Stahl
- Biostatistics and Health Informatics, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom
| | - Rory C. O’Connor
- Suicidal Behaviour Research Laboratory, Institute of Health and Wellbeing, University of Glasgow, Glasgow, United Kingdom
| | - Kirsty Bannister
- Central Modulation of Pain, Institute of Psychiatry, Psychology, and Neuroscience, King’s College London, London, United Kingdom
| | - Stephen B. McMahon
- Neurorestoration, Institute of Psychiatry, Psychology, and Neuroscience, King’s College London, London, United Kingdom
| | - Dennis Ougrin
- Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology, and Neuroscience, King's College London, London, United Kingdom
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19
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Phenotyping peripheral neuropathic pain in male and female adolescents: pain descriptors, somatosensory profiles, conditioned pain modulation, and child-parent reported disability. Pain 2021; 162:1732-1748. [PMID: 33394878 DOI: 10.1097/j.pain.0000000000002172] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Accepted: 11/09/2020] [Indexed: 12/13/2022]
Abstract
ABSTRACT Neuropathic pain (NeuP) can be difficult to diagnose and manage in children. Data regarding prevalence and sex-dependent differences are limited, and more detailed phenotyping is needed. This observational cohort study recruited adolescents (10-17 years) with NeuP or complex regional pain syndrome (CRPS). After pain history and NeuP questionnaires, quantitative sensory testing was performed. Individual z-score plots were calculated with body-region control measures and matched to mechanism-related sensory profiles (sensory loss, thermal hyperalgesia, and mechanical hyperalgesia). Conditioned pain modulation was assessed with pressure pain threshold and a contralateral cold conditioning stimulus, and meaningful conditioned pain modulation defined as twice the standard error of measurement. Patients and parents completed validated questionnaires for child quality of life (QoL), pain catastrophizing, and self-reported anxiety/depression. Males (n = 23) and females (n = 43) with NeuP (n = 52) or CRPS (n = 14) reported moderate-severe pain with neuropathic sensory descriptors. Mixed patterns of sensory gain/loss at pain sites were not sex-dependent. Thermal hyperalgesia was common in both NeuP and CRPS, whereas sensory loss occurred only with NeuP and in a smaller proportion than adult cohorts. Conditioned pain modulation was inhibitory in 54%, facilitatory in 14%, and nonresponders had variable cold conditioning sensitivity. Males and females reported marked impairment of QoL, increased emotional distress, and pain catastrophising. Child-parent QoL scores correlated, but catastrophizing scores were discordant when parents or adolescents reported higher anxiety/depression. NeuP in adolescents is associated with significant pain, physical impairment, and psychosocial impairment. Quantifying alterations in somatosensory profiles, descending modulation, child and parent psychological function will inform individualized therapy and stratification for future clinical trials.
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20
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Eccleston C, Fisher E, Howard RF, Slater R, Forgeron P, Palermo TM, Birnie KA, Anderson BJ, Chambers CT, Crombez G, Ljungman G, Jordan I, Jordan Z, Roberts C, Schechter N, Sieberg CB, Tibboel D, Walker SM, Wilkinson D, Wood C. Delivering transformative action in paediatric pain: a Lancet Child & Adolescent Health Commission. THE LANCET. CHILD & ADOLESCENT HEALTH 2021; 5:47-87. [PMID: 33064998 DOI: 10.1016/s2352-4642(20)30277-7] [Citation(s) in RCA: 111] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/30/2020] [Accepted: 08/06/2020] [Indexed: 02/07/2023]
Affiliation(s)
- Christopher Eccleston
- Centre for Pain Research, University of Bath, Bath, UK; Cochrane Pain, Palliative, and Supportive Care Review Groups, Churchill Hospital, Oxford, UK; Department of Clinical-Experimental and Health Psychology, Ghent University, Ghent, Belgium.
| | - Emma Fisher
- Centre for Pain Research, University of Bath, Bath, UK; Cochrane Pain, Palliative, and Supportive Care Review Groups, Churchill Hospital, Oxford, UK
| | - Richard F Howard
- Department of Anaesthesia and Pain Medicine, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK; Clinical Neurosciences, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Rebeccah Slater
- Department of Paediatrics, University of Oxford, Oxford, UK; Wellcome Centre for Integrative Neuroimaging, Oxford Centre for Functional MRI of the Brain, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Paula Forgeron
- School of Nursing, Faculty of Health Sciences, University of Ottawa, ON, Canada
| | - Tonya M Palermo
- Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA; Center for Child Health, Behavior and Development, Seattle Children's Research Institute, Seattle, WA, USA
| | - Kathryn A Birnie
- Department of Anesthesiology, Perioperative and Pain Medicine, University of Calgary, AB, Canada
| | - Brian J Anderson
- Department of Anaesthesiology, University of Auckland, Auckland, New Zealand
| | - Christine T Chambers
- Department of Psychology and Neuroscience, and Department of Pediatrics, Dalhousie University, Halifax, NS, Canada; Centre for Pediatric Pain Research, IWK Health Centre, Halifax, NS, Canada
| | - Geert Crombez
- Department of Clinical-Experimental and Health Psychology, Ghent University, Ghent, Belgium
| | - Gustaf Ljungman
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | | | | | | | - Neil Schechter
- Division of Pain Medicine, Department of Anesthesiology, Critical Care, and Pain Medicine, Boston Children's Hospital, Boston, MA, USA; Department of Anesthesiology, Harvard Medical School, Boston, MA, USA
| | - Christine B Sieberg
- Division of Pain Medicine, Department of Anesthesiology, Critical Care, and Pain Medicine, Boston Children's Hospital, Boston, MA, USA; Department of Psychiatry, Boston Children's Hospital, Boston, MA, USA; Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Dick Tibboel
- Intensive Care and Department of Pediatric Surgery, Erasmus MC-Sophia Children's Hospital, Rotterdam, Netherlands
| | - Suellen M Walker
- Department of Anaesthesia and Pain Medicine, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK; Clinical Neurosciences, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Dominic Wilkinson
- Oxford Uehiro Centre for Practical Ethics, Faculty of Philosophy, University of Oxford, Oxford, UK; John Radcliffe Hospital, Oxford, UK; Murdoch Children's Research Institute, Melbourne, VIC, Australia
| | - Chantal Wood
- Department of Spine Surgery and Neuromodulation, Poitiers University Hospital, Poitiers, France
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Cámara RJA, Gharbo RK, Egloff N. Age and Gender as Factors of Pressure Sensitivity of Pain-Free Persons: Are They Meaningful? J Pain Res 2020; 13:1849-1859. [PMID: 32765059 PMCID: PMC7382585 DOI: 10.2147/jpr.s248664] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 07/07/2020] [Indexed: 01/18/2023] Open
Abstract
Purpose Prior findings suggest that women and elderly persons are more sensitive to pressure than men and younger persons; however, the magnitudes of these differences are substantially inconsistent. We answered the question whether the higher sensitivity of women and elderly persons is quantitatively meaningful. Specifically, we investigated if it is large enough to hamper the diagnosis, classification and follow-up of pain conditions by clinicians. Materials and Methods From each age stratum (18–20, 21–30, 31–40, 41–50, 51–60, 61–70, 71–80, and >80 years), 40 pain-free women and 40 pain-free men were recruited. They rated the intensity of pressure of ten Newtons over ten seconds on an analogue zero to ten rating scale. The pressure was applied on their middle fingers and ear lobes with a threshold algometer. Centile curves visualized the sex- and age-dependent fluctuation of pressure sensitivity. Results Over the entire age range from 20 to 80 years, the median curves fluctuated within the interval of less than two points. The distance between the median curves of men and women was also less than two points. On the average, the median difference was half a point on the finger (p = 0.249) and the ear lobe (p = 0.083). Conclusion Less than two points is below the minimal clinically important difference for a zero to ten analogue pain rating scale; differences smaller than one point are even below the resolution of the scale. Sex differences and age fluctuations of pressure sensitivity are negligible.
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Affiliation(s)
| | | | - Niklaus Egloff
- Department of Neurology, Division of Psychosomatic Medicine, Inselspital, Bern University Hospital, Bern, Switzerland
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Tampin B, Slater H, Jacques A, Lind CRP. Association of quantitative sensory testing parameters with clinical outcome in patients with lumbar radiculopathy undergoing microdiscectomy. Eur J Pain 2020; 24:1377-1392. [PMID: 32383177 PMCID: PMC7496563 DOI: 10.1002/ejp.1586] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 03/04/2020] [Accepted: 04/29/2020] [Indexed: 12/25/2022]
Abstract
Background/Aim This study aimed to establish the somatosensory profile of patients with lumbar radiculopathy at pre‐and post‐microdiscectomy and to explore any association between pre‐surgical quantitative sensory test (QST) parameters and post‐surgical clinical outcomes. Methods A standardized QST protocol was performed in 53 patients (mean age 38 ± 11 years, 26 females) with unilateral L5/S1 radiculopathy in the main pain area (MPA), affected dermatome and contralateral mirror sites and in age‐ and gender‐,and body site‐matched healthy controls. Repeat measures at 3 months included QST, the Oswestry Disability Index (ODI) and numerous other clinical measures; at 12 months, only clinical measures were repeated. A change <30% on the ODI was defined as ‘no clinically meaningful improvement’. Results Patients showed a significant loss of function in their symptomatic leg both in the dermatome (thermal, mechanical, vibration detection p < .002), and MPA (thermal, mechanical, vibration detection, mechanical pain threshold, mechanical pain sensitivity p < .041) and increased cold sensitivity in the MPA (p < .001). Pre‐surgical altered QST parameters improved significantly post‐surgery in the dermatome (p < .018) in the symptomatic leg and in the MPA (p < .010), except for thermal detection thresholds and cold sensitivity. Clinical outcomes improved at 3 and 12 months (p < .001). Seven patients demonstrated <30% change on the ODI at 12 months. Baseline loss of function in mechanical detection in the MPA was associated with <30% change on the ODI at 12 months (OR 2.63, 95% CI 1.09–6.37, p = .032). Conclusion Microdiscectomy resulted in improvements in affected somatosensory parameters and clinical outcomes. Pre‐surgical mechanical detection thresholds may be predictive of clinical outcome. Significance This study documented quantitative sensory testing (QST) profiles in patients with lumbar radiculopathy in their main pain area (MPA) and dermatome pre‐ and post‐microdiscectomy and explored associations between QST parameters and clinical outcome. Lumbar radiculopathy was associated with loss of function in modalities mediated by large and small sensory fibres. Microdiscectomy resulted in significant improvements in loss of function and clinical outcomes in 85% of our cohort. Pre‐surgical mechanical detection thresholds in the MPA may be predictive of clinical outcome.
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Affiliation(s)
- Brigitte Tampin
- Department of Physiotherapy, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia.,Neurosurgical Service of Western Australia, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia.,School of Physiotherapy and Exercise Science, Curtin University, Perth, Western Australia, Australia
| | - Helen Slater
- School of Physiotherapy and Exercise Science, Curtin University, Perth, Western Australia, Australia
| | - Angela Jacques
- School of Physiotherapy and Exercise Science, Curtin University, Perth, Western Australia, Australia.,Department of Research, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia.,Institute for Health Research, The University of Notre Dame Australia, Fremantle, Western Australia, Australia
| | - Christopher R P Lind
- Neurosurgical Service of Western Australia, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia.,Medical School, University of Western Australia, Perth, Western Australia, Australia
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Long-term small-fiber neuropathy and pain sensitization in survivors of pediatric acute lymphoblastic leukemia after stem cell transplantation. J Cancer Res Clin Oncol 2020; 146:2143-2152. [PMID: 32346759 PMCID: PMC8363542 DOI: 10.1007/s00432-020-03216-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 04/09/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE We aimed at describing for the first time peripheral small-fiber neurotoxicity and pain sensitization in survivors of pediatric acute lymphoblastic leukemia after stem cell transplantation (SCT). METHODS In a cross-sectional, retrospective, single-center study, we assessed 25 relapse-free long-term survivors (median age at SCT: 11 ± 4.9 years; median time between SCT and testing: 8.25 years, 19 males) using a reduced version of the pediatric-modified total neuropathy score for clinical assessment and Quantitative Sensory Testing (QST). INCLUSION CRITERIA [Formula: see text] 6 years old at testing, [Formula: see text] 18 years old at time of SCT, [Formula: see text] 1 year between SCT and testing. RESULTS Nine patients (36%) had peripheral neuropathy as defined by the clinical red-pmTNS (≥ 4). The QST parameters mechanical pain sensitivity, mechanical detection threshold, thermal sensory limen, vibration detection threshold and pressure pain threshold were significantly abnormal in the survivor cohort (p < 0.0038). Except for one, all survivors showed at least one abnormal QST parameter. When using QST, signs of small and large fiber dysfunction were present in 22 (88%) and 17 (68%) survivors, respectively. More than half of all survivors were found to experience pathologic sensitization to pain. CONCLUSIONS AND IMPLICATIONS FOR CANCER SURVIVORS Survivors of pediatric acute lymphoblastic leukemia after SCT are at high risk for long-term peripheral neuropathy with a dominating small-fiber and pain sensitization pattern.
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Khan WU, Michelini G, Battaglia M. Twin studies of the covariation of pain with depression and anxiety: A systematic review and re-evaluation of critical needs. Neurosci Biobehav Rev 2020; 111:135-148. [DOI: 10.1016/j.neubiorev.2020.01.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 12/13/2019] [Accepted: 01/15/2020] [Indexed: 01/21/2023]
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A Cross-Sectional Study on Subjective Fever Assessment in Children by Palpation: Are Fathers as Reliable as Mothers? Emerg Med Int 2020; 2020:3534267. [PMID: 32104604 PMCID: PMC7037523 DOI: 10.1155/2020/3534267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 12/31/2019] [Accepted: 01/23/2020] [Indexed: 11/17/2022] Open
Abstract
Background Fever is common in pediatric patients. Often, parents rely solely on palpation when assessing their child's fever. The objective of the current study was to determine the accuracy of parents in detecting their child's fever by palpation. Methods A prospective cross-sectional study was conducted at the emergency department (ED) of a tertiary pediatric hospital. Infants and children, 0-4 years of age, presenting to the ED with both parents were included. Parents were separately asked if their child had a fever and, if so, were asked to assess the temperature by palpation. A nurse obtained the rectal temperature. The primary outcome measure was the accuracy of fathers and mothers in detecting fever. Results A total of 170 children with their parents were enrolled. The mean ages of the children, mothers, and fathers were 18.9 (SD 0.8) months, 31.1 (SD 6.4) years, and 33.7 (SD 6.9) years, respectively. No statistically significant difference was found between mothers and fathers in the ability to assess fever by palpation (OR 0.65, 95% CI 0.39,-1.08). Sensitivities for detecting fever by palpation for mothers and father were 86.4% and 88.2%, respectively (specificity among mothers: 54.2% and specificity among fathers: 43.1%). The overall negative and positive predictive values were 65.9% (95% CI 55%-75.7%) and 75.7% (95% CI 69.9%-80.8%), respectively. Conclusions Mothers and fathers do not differ in their ability to accurately assess their child's fever by palpation. The low positive and negative predictive values indicate that if temperature was not measured, physicians cannot rely on parents' reports.
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Transient receptor potential ankyrin 1 promoter methylation and peripheral pain sensitivity in Crohn's disease. Clin Epigenetics 2019; 12:1. [PMID: 31892361 PMCID: PMC6938615 DOI: 10.1186/s13148-019-0796-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 12/16/2019] [Indexed: 12/11/2022] Open
Abstract
Background Crohn’s disease is a chronic inflammatory disorder of the gastrointestinal tract associated with abdominal pain and diarrhea. Pain caused by Crohn’s disease likely involves neurogenic inflammation which seems to involve the ion channel transient receptor potential ankyrin 1 (TRPA1). Since the promoter methylation of TRPA1 was shown to influence pain sensitivity, we asked if the expression of TRPA1 is dysregulated in patients suffering from Crohn’s disease. The methylation rates of CpG dinucleotides in the TRPA1 promoter region were determined from DNA derived from whole blood samples of Crohn patients and healthy participants. Quantitative sensory testing was used to examine pain sensitivities. Results Pressure pain thresholds were lower in Crohn patients as compared to healthy participants, and they were also lower in females than in males. They correlated inversely with the methylation rate at the CpG − 628 site of the TRPA1 promoter. This effect was more pronounced in female compared to male Crohn patients. Similar results were found for mechanical pain thresholds. Furthermore, age-dependent effects were detected. Whereas the CpG − 628 methylation rate declined with age in healthy participants, the methylation rate in Crohn patients increased. Pressure pain thresholds increased with age in both cohorts. Conclusions The TRPA1 promoter methylation appears to be dysregulated in patients suffering from Crohn’s disease, and this effect is most obvious when taking gender and age into account. As TRPA1 is regarded to be involved in pain caused by neurogenic inflammation, its aberrant expression may contribute to typical symptoms of Crohn’s disease.
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Schoth DE, Blankenburg M, Wager J, Broadbent P, Zhang J, Zernikow B, Liossi C. Association between quantitative sensory testing and pain or disability in paediatric chronic pain: protocol for a systematic review and meta-analysis. BMJ Open 2019; 9:e031861. [PMID: 31594898 PMCID: PMC6797335 DOI: 10.1136/bmjopen-2019-031861] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
INTRODUCTION This protocol describes the objective and methods of a systematic review of the association between quantitative sensory testing (QST) measures and pain intensity or disability in paediatric chronic pain (PCP). The review will also assess whether the relationship strength is moderated by variables related to the QST method and pain condition; the use of QST in PCP (modalities, outcome measures and anatomical test sites as well as differentiating between pain mechanisms (eg, neuropathic vs nociceptive) and in selecting analgesics); the reliability of QST across the paediatric age range; the ability of QST to differentiate patients with chronic pain from healthy controls; and differences between anatomical test sites. METHODS AND ANALYSIS Medline, PsycINFO, CINHAL, Web of Science, Scopus, Cochrane Library and OpenGrey will be searched. English language studies will be eligible if they recruit a sample aged 6-24 (inclusive) with chronic pain, including primary and secondary pain; apply at least one of the following QST modalities: chemical, electrical, mechanical (subgroups include pressure, punctate/brush and vibratory) or thermal stimulus to measure perception of noxious or innocuous stimuli applied to skin, muscle or joint; use a testing protocol to control for stimulus properties: modality, anatomical site, intensity, duration and sequence. Following title and abstract screening, the full texts of relevant records will be independently assessed by two reviewers. For eligible studies, one reviewer will extract study characteristics and data, and another will check for accuracy. Both will undertake independent quality assessments using the Appraisal Tool for Cross-Sectional Studies. A qualitative synthesis will be presented with discussion centred around different QST modalities. Where eligible data permit, meta-analyses will be performed separately for different QST modalities using comprehensive meta-analysis. ETHICS AND DISSEMINATION Review findings will be reported in a peer-reviewed journal and presented at conferences. The study raises no ethical issues. PROSPERO REGISTRATION NUMBER CRD42019134069.
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Affiliation(s)
| | | | - Julia Wager
- Universitat Witten/Herdecke, Witten, Germany
| | | | - Jin Zhang
- School of Psychology, University of Southampton, Southampton, UK
| | | | - Christina Liossi
- School of Psychology, University of Southampton, Southampton, UK
- Paediatric Psychology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
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Walker SM, Melbourne A, O'Reilly H, Beckmann J, Eaton-Rosen Z, Ourselin S, Marlow N. Somatosensory function and pain in extremely preterm young adults from the UK EPICure cohort: sex-dependent differences and impact of neonatal surgery. Br J Anaesth 2018; 121:623-635. [PMID: 30115261 PMCID: PMC6200114 DOI: 10.1016/j.bja.2018.03.035] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 02/27/2018] [Accepted: 04/26/2018] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Surgery or multiple procedural interventions in extremely preterm neonates influence neurodevelopmental outcome and may be associated with long-term changes in somatosensory function or pain response. METHODS This observational study recruited extremely preterm (EP, <26 weeks' gestation; n=102, 60% female) and term-born controls (TC; n=48) aged 18-20 yr from the UK EPICure cohort. Thirty EP but no TC participants had neonatal surgery. Evaluation included: quantitative sensory testing (thenar eminence, chest wall); clinical pain history; questionnaires (intelligence quotient; pain catastrophising; anxiety); and structural brain imaging. RESULTS Reduced thermal threshold sensitivity in EP vs TC participants persisted at age 18-20 yr. Sex-dependent effects varied with stimulus intensity and were enhanced by neonatal surgery, with reduced threshold sensitivity in EP surgery males but increased sensitivity to prolonged noxious cold in EP surgery females (P<0.01). Sex-dependent differences in thermal sensitivity correlated with smaller amygdala volume (P<0.05) but not current intelligence quotient. While generalised decreased sensitivity encompassed mechanical and thermal modalities in EP surgery males, a mixed pattern of sensory loss and sensory gain persisted adjacent to neonatal scars in males and females. More EP participants reported moderate-severe recurrent pain (22/101 vs 4/48; χ2=0.04) and increased pain intensity correlated with higher anxiety and pain catastrophising. CONCLUSIONS After preterm birth and neonatal surgery, different patterns of generalised and local scar-related alterations in somatosensory function persist into early adulthood. Sex-dependent changes in generalised sensitivity may reflect central modulation by affective circuits. Early life experience and sex/gender should be considered when evaluating somatosensory function, pain experience, or future chronic pain risk.
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Affiliation(s)
- S M Walker
- Clinical Neurosciences (Pain Research), UCL Great Ormond Street Institute of Child Health, London, UK; Department of Anaesthesia and Pain Medicine, Great Ormond Street Hospital NHS Foundation Trust, London, UK.
| | - A Melbourne
- Translational Imaging Group, Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - H O'Reilly
- Academic Neonatology, EGA UCL Institute for Women's Health, London, UK
| | - J Beckmann
- Academic Neonatology, EGA UCL Institute for Women's Health, London, UK
| | - Z Eaton-Rosen
- Translational Imaging Group, Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - S Ourselin
- Translational Imaging Group, Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - N Marlow
- Academic Neonatology, EGA UCL Institute for Women's Health, London, UK
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Abstract
This case report illustrates the value of a comprehensive perioperative pain assessment composed of quantitative sensory testing and self-reported measures that highlight the impact of pain experienced by a 14-year-old boy suffering from chronic low back pain and sciatica. Before surgery, the pain assessment revealed inefficient endogenous inhibitory pain control with presence of temporal summation of pain. The severe pain was constant and lasted for 18 months. The patient was in a high-anxiety state, and reported significant functional disability and poor sleep quality. Six months after surgery, the patient was pain free. Quantitative sensory testing showed an improvement in his inhibitory pain control with the absence of temporal summation of pain. The patient was no longer anxious, was back to normal functional abilities, and reported good sleep quality. By including neurophysiology and other pain measures, the clinical application of a comprehensive pain assessment can provide objective measurements of treatment efficacy.
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Quantitative sensory testing profiles in children, adolescents and young adults (6-20 years) with cerebral palsy: Hints for a neuropathic genesis of pain syndromes. Eur J Paediatr Neurol 2018; 22:470-481. [PMID: 29337004 DOI: 10.1016/j.ejpn.2017.12.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 09/20/2017] [Accepted: 12/19/2017] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Many patients with cerebral palsy (CP) suffer chronic pain as one of the most limiting factors in their quality of life. In CP patients, pain mechanisms are not well understood, and pain therapy remains a challenge. Quantitative sensory testing (QST) might provide unique information about the functional status of the somatosensory system and therefore better guide pain treatment. OBJECTIVES To understand better the underlying pain mechanisms in pediatric CP patients, we aimed to assess clinical and pain parameters, as well as QST profiles, which were matched to the patients' cerebral imaging pathology. PATIENTS AND METHODS Thirty CP patients aged 6-20 years old (mean age 12 years) without intellectual impairment underwent standardized assessments of QST. Cerebral imaging was reassessed. QST results were compared to age- and sex-matched controls (multiple linear regression; Fisher's exact test; linear correlation analysis). RESULTS CP patients were less sensitive to all mechanical and thermal stimuli than healthy controls but more sensitive to all mechanical pain stimuli (each p < 0.001). Fifty percent of CP patients showed a combination of mechanical hypoesthesia, thermal hypoesthesia and mechanical hyperalgesia; 67% of CP patients had periventricular leukomalacia (PVL), which was correlated with mechanic (r = 0.661; p < 0.001) and thermal (r = 0.624; p = 0.001) hypoesthesia. CONCLUSION The combination of mechanical hypoesthesia, thermal hypoesthesia and mechanical hyperalgesia in our CP patients implicates lemniscal and extralemniscal neuron dysfunction in the thalamus region, likely due to PVL. We suspect that extralemniscal tracts are involved in the original of pain in our CP patients, as in adults.
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Small-fiber neuropathy and pain sensitization in survivors of pediatric acute lymphoblastic leukemia. Eur J Paediatr Neurol 2018; 22:457-469. [PMID: 29396168 DOI: 10.1016/j.ejpn.2017.12.019] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 09/24/2017] [Accepted: 12/23/2017] [Indexed: 11/23/2022]
Abstract
BACKGROUND Chemotherapy-induced Peripheral Neuropathy (CIPN) of large-fibers affects up to 20% of survivors of pediatric acute lymphoblastic leukemia (ALL). We aimed to describe small-fiber toxicity and pain sensitization in this group. METHODS In a cross-sectional, bicentric study we assessed 46 survivors of pediatric ALL (Mean age: 5.7 ± 3.5 years at diagnosis, median 2.5 years after therapy; males: 28). INCLUSION CRITERIA ≥6 years of age, ≥3 months after last administration of Vincristine, and cumulative dose of Vincristine 12 mg/m2. We used a reduced version of the Pediatric-modified Total Neuropathy Score (Ped-mTNS) as bedside test and Quantitative Sensory Testing (QST) for assessment of small- and large-fiber neuropathy as well as pain sensitization. We employed Nerve Conduction Studies (NCS) as the most accurate tool for detecting large-fiber neuropathy. RESULTS Fifteen survivors (33%) had abnormal rPed-mTNS values (≥4 points) and 5 survivors (11%) reported pain. In QST, the survivor group showed significant (p < 0.001) inferior large-fiber function and pain sensitization when compared to healthy matched peers. We identified deficits of vibration in 33 (72%) and tactile hypoesthesia in 29 (63%), hyperalgesia to blunt pressure in 19 (41%), increased mechanical pain sensitivity in 12 (26%) and allodynia in 16 (35%) of 46 survivors. Only 7 survivors (15%) had pathologic NCS. CONCLUSION QST is a sensitive tool that revealed signs of large-fiber neuropathy in two thirds, small-fiber neuropathy and pain sensitization in one third of survivors. Prospective studies using QST in pediatric oncology may help to elucidate the pathophysiology of small-fiber neuropathy and pain sensitization as well as their relevance for quality of survival.
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Pressure Pain Threshold and Anxiety in Adolescent Females With and Without Juvenile Fibromyalgia: A Pilot Study. Clin J Pain 2018; 33:620-626. [PMID: 27841836 DOI: 10.1097/ajp.0000000000000444] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
OBJECTIVES Reduced pain thresholds have been documented in adult fibromyalgia, but there are no quantitative studies of altered pain sensitivity in adolescents with juvenile fibromyalgia (JFM). The current study examined differences in pressure pain sensitivity between adolescent females with JFM and healthy controls. The relationship between levels of anxiety and pain were also examined. METHODS A total of 34 JFM (15.4±1.4 y old) and 31 controls (14.5±1.3 y old) completed self-report measures of pain and anxiety. Pressure pain threshold was assessed (palm and forehead sites) with a hand-held algometer. Participants indicated the first sensation of pain and then rated the intensity of pain on a Numerical Rating Scale. RESULTS Adolescents with JFM exhibited greater sensitivity to pressure pain compared with controls. While the difference between JFM and controls was only observed at the forehead, the intensity of pain produced by the pressure algometry at both sites was significantly higher in the JFM participants compared with controls. Correlations between clinical pain and anxiety were significant for the JFM group only. No relationships were observed between anxiety and pressure pain for either group. DISCUSSION This study is a first step toward investigating mechanisms of altered pain processing in adolescents with JFM. Adolescents with JFM were found be more sensitive to pressure pain than their healthy peers, which suggests a propensity for sensitization of peripheral and/or central nociceptive information often reported in adult fibromyalgia, and which does not appear to be affected by anxiety.
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Bakshi N, Lukombo I, Shnol H, Belfer I, Krishnamurti L. Psychological Characteristics and Pain Frequency Are Associated With Experimental Pain Sensitivity in Pediatric Patients With Sickle Cell Disease. THE JOURNAL OF PAIN 2017; 18:1216-1228. [DOI: 10.1016/j.jpain.2017.05.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 04/20/2017] [Accepted: 05/06/2017] [Indexed: 01/02/2023]
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Thermal quantitative sensory testing in healthy Dutch children and adolescents standardized test paradigm and Dutch reference values. BMC Pediatr 2017; 17:77. [PMID: 28302148 PMCID: PMC5356312 DOI: 10.1186/s12887-017-0827-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 03/08/2017] [Indexed: 11/22/2022] Open
Abstract
Background Quantitative sensory testing (QST) is often used to measure children’s and adults’ detection- and pain thresholds in a quantitative manner. In children especially the Thermal Sensory Analyzer (TSA-II) is often applied to determine thermal detection and pain thresholds. As comparisons between studies are hampered by the different testing protocols used, we aimed to present a standard protocol and reference values for thermal detection- and pain thresholds in children. Methods Our standard testing protocol includes reaction time dependent and independent tests and takes about 14–18 min to complete. Reference values were obtained from a sample of 69 healthy term born children and adolescents with a median age of 11.2 years (range 8.2 to 17.9 years old). Seventy-one children were recruited and data of 28 males and 41 females was obtained correctly. We studied possible age and sex differences. Results This study provides Dutch reference values and presents a standard quantitative sensory testing protocol for children with an age from 8 years onwards. This protocol appeared to be feasible, since only two out of 71 participants were not able to correctly complete the protocol due to attention deficits and were therefore excluded. We found some significant age and sex differences: females were statistically significantly more sensitive for both cold and heat pain compared to males, and the youngest children (8–9 years old) were less sensitive to detect a warm stimulus. The youngest children tend to be more sensitive to heat pain in comparison to older participants, although the difference was not statistically significant. Conclusions We present a feasible thermal quantitative sensory testing protocol for children and reference values that are easy to interpret and may serve as normative values for future studies. Electronic supplementary material The online version of this article (doi:10.1186/s12887-017-0827-7) contains supplementary material, which is available to authorized users.
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El Tumi H, Johnson M, Dantas P, Maynard M, Tashani O. Age-related changes in pain sensitivity in healthy humans: A systematic review with meta-analysis. Eur J Pain 2017; 21:955-964. [DOI: 10.1002/ejp.1011] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/25/2016] [Indexed: 01/30/2023]
Affiliation(s)
- H. El Tumi
- Centre for Pain Research, School of Clinical and Applied Sciences; Leeds Beckett University; Leeds UK
- University of Benghazi; Benghazi Libya
| | - M.I. Johnson
- Centre for Pain Research, School of Clinical and Applied Sciences; Leeds Beckett University; Leeds UK
| | - P.B.F. Dantas
- Centre for Pain Research, School of Clinical and Applied Sciences; Leeds Beckett University; Leeds UK
- Universidade Federal do Rio Grande do Norte; Natal Brazil
| | - M.J. Maynard
- Centre for Pain Research, School of Clinical and Applied Sciences; Leeds Beckett University; Leeds UK
| | - O.A. Tashani
- Centre for Pain Research, School of Clinical and Applied Sciences; Leeds Beckett University; Leeds UK
- University of Benghazi; Benghazi Libya
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Abstract
AIM Chronic and debilitating pediatric pain has a prevalence of 5% and as such constitutes a considerable health problem. The aim of this article is to provide an overview of current research activities on pediatric pain, available health care for children with chronic pain and education and training programs for health professionals. METHOD This overview is based on the authors' personal experience, information available from medical, research and professional associations, as well as a PubMed literature search for the time period 2012-2015 using "children";"pain" and "Germany" as search terms. RESULTS There are numerous research activities in Germany focusing on the epidemiology, the underlying psychobiological mechanisms and on the multimodal treatment of chronic pediatric pain. This research is internationally widely acknowledged and makes a significant contribution to current developments in pediatric pain research. By contrast, health services and basic science research is clearly lacking in Germany. Moreover, specialized health care for youth with chronic pain is far less institutionalized when compared to adults suffering from chronic pain. Indeed, primary and secondary care services have rarely been studied or even evaluated. CONCLUSION Similar to international trends, research on chronic pediatric pain has also grown and advanced in Germany. Indeed, not only the amount of research has increased but also its scope. Nonetheless, there is clearly a need for more research efforts with regard to the understanding of (pediatric) pain mechanisms, clinical studies and, especially, investigations on health care services. It is particularly important to focus on the implementation, improvement and systematic evaluation of specialized health care services which would be available and accessible for children and adolescents with chronic pain and not be restricted to tertiary care.
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Epigenetic divergence in the TRPA1 promoter correlates with pressure pain thresholds in healthy individuals. Pain 2016; 158:698-704. [DOI: 10.1097/j.pain.0000000000000815] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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39
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Tham SW, Palermo TM, Holley AL, Zhou C, Stubhaug A, Furberg AS, Nielsen CS. A population-based study of quantitative sensory testing in adolescents with and without chronic pain. Pain 2016; 157:2807-2815. [PMID: 27780176 DOI: 10.1097/j.pain.0000000000000716] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Quantitative sensory testing (QST) has been used to characterize pain sensitivity in individuals with and without pain conditions. Research remains limited in pediatric populations, hindering the ability to expand the utility of QST toward its potential application in clinical settings and clinical predictive value. The aims of this study were to examine pain sensitivity using QST in adolescents with chronic pain compared to adolescents without chronic pain and identify predictors of pain sensitivity. A population-based study conducted from 2010 to 2011 provided data on 941 adolescents, 197 were classified as having chronic pain and 744 were classified without chronic pain. Self-reported data on pain characteristics, psychological functioning, and QST responses were examined. The findings revealed lower pressure pain threshold and tolerance on the trapezius (P's = 0.03) in adolescents with chronic pain compared to adolescents without chronic pain, but no differences on heat or cold-pressor pain tasks. Female sex (P's = 0.02) and poorer psychological functioning (P's = 0.02) emerged as significant predictors of greater pain sensitivity across all pain modalities. Exploratory analyses revealed several associations between clinical pain characteristics and QST responses within the chronic pain cohort. Findings from this large pediatric sample provide comprehensive data that could serve as normative data on QST responses in adolescents with and without chronic pain. These findings lay the groundwork toward developing future QST research and study protocols in pediatric populations, taking into consideration sex and psychological distress.
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Affiliation(s)
- See Wan Tham
- Department of Anesthesiology & Pain Medicine, University of Washington School of Medicine, Seattle, WA, USA
- Seattle Children's Research Institute, WA, USA
| | - Tonya M Palermo
- Department of Anesthesiology & Pain Medicine, University of Washington School of Medicine, Seattle, WA, USA
- Seattle Children's Research Institute, WA, USA
| | - Amy Lewandowski Holley
- Institute of Development and Disability, Oregon Health & Science University, Portland, OR, USA
| | - Chuan Zhou
- Seattle Children's Research Institute, WA, USA
- Department of Pediatrics, University of Washington School of Medicine, WA, USA
| | - Audun Stubhaug
- Department of Pain Management and Research, Oslo University Hospital, Oslo, Norway
- University of Oslo, Oslo, Norway
| | - Anne-Sofie Furberg
- Department of Community Medicine, The Arctic University of Norway, Tromsø, Norway
- Department of Microbiology and Infection Control, University Hospital of North Norway, Tromsø, Norway
| | - Christopher Sivert Nielsen
- Department of Pain Management and Research, Oslo University Hospital, Oslo, Norway
- Department of Ageing and Health, Norwegian Institute of Public Health, Oslo, Norway
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Melchior M, Poisbeau P, Gaumond I, Marchand S. Insights into the mechanisms and the emergence of sex-differences in pain. Neuroscience 2016; 338:63-80. [DOI: 10.1016/j.neuroscience.2016.05.007] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Revised: 05/01/2016] [Accepted: 05/05/2016] [Indexed: 12/19/2022]
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41
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Hirschfeld G, Blankenburg MR, Süß M, Zernikow B. Overcoming pain thresholds with multilevel models-an example using quantitative sensory testing (QST) data. PeerJ 2015; 3:e1335. [PMID: 26557435 PMCID: PMC4636408 DOI: 10.7717/peerj.1335] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 09/29/2015] [Indexed: 11/26/2022] Open
Abstract
The assessment of somatosensory function is a cornerstone of research and clinical practice in neurology. Recent initiatives have developed novel protocols for quantitative sensory testing (QST). Application of these methods led to intriguing findings, such as the presence lower pain-thresholds in healthy children compared to healthy adolescents. In this article, we (re-) introduce the basic concepts of signal detection theory (SDT) as a method to investigate such differences in somatosensory function in detail. SDT describes participants’ responses according to two parameters, sensitivity and response-bias. Sensitivity refers to individuals’ ability to discriminate between painful and non-painful stimulations. Response-bias refers to individuals’ criterion for giving a “painful” response. We describe how multilevel models can be used to estimate these parameters and to overcome central critiques of these methods. To provide an example we apply these methods to data from the mechanical pain sensitivity test of the QST protocol. The results show that adolescents are more sensitive to mechanical pain and contradict the idea that younger children simply use more lenient criteria to report pain. Overall, we hope that the wider use of multilevel modeling to describe somatosensory functioning may advance neurology research and practice.
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Affiliation(s)
- Gerrit Hirschfeld
- Faculty of Business Management and Social Sciences, University of Applied Sciences Osnabrück , Osnabrück , Germany
| | - Markus R Blankenburg
- Chair for Children's Pain Therapy and Paediatric Palliative Care, Witten/Herdecke University , Witten/Herdecke , Germany ; Department for Pediatric Neurology, Psychosomatic and Pain Medicine, Center for Child and Adolescent Medicine Olgahospital, Klinikum Stuttgart , Stuttgart , Germany
| | - Moritz Süß
- Department for Psychology, University Düsseldorf , Düsseldorf , Germany
| | - Boris Zernikow
- Chair for Children's Pain Therapy and Paediatric Palliative Care, Witten/Herdecke University , Witten/Herdecke , Germany ; German Pediatric Pain Centre-Children's Hospital Datteln, Witten/Herdecke University , Germany
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Noel M, Taddio A, McMurtry CM, Chambers CT, Pillai Riddell R, Shah V. HELPinKids&Adults Knowledge Synthesis of the Management of Vaccination Pain and High Levels of Needle Fear: Limitations of the Evidence and Recommendations for Future Research. Clin J Pain 2015; 31:S124-31. [PMID: 26352918 PMCID: PMC4900408 DOI: 10.1097/ajp.0000000000000266] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 06/07/2015] [Indexed: 02/06/2023]
Abstract
The HELPinKids&Adults knowledge synthesis for the management of vaccination-related pain and high levels of needle fear updated and expanded upon the 2010 HELPinKIDS knowledge synthesis and clinical practice guideline for pain mitigation during vaccine injections in childhood. Interventions for vaccine pain management in adults and treatment of individuals with high levels of needle fear, phobias, or both were included, thereby broadening the reach of this work. The present paper outlines the overarching limitations of this diverse evidence base and provides recommendations for future research. Consistent with the framing of clinical questions in the systematic reviews, the Participants, Intervention, Comparison, Outcome, Study design (PICOAS) framework was used to organize these predominant issues and research directions. The major limitations we identified across systematic reviews were an overall dearth of trials on vaccination, lack of methodological rigor, failure to incorporate important outcomes, poor study reporting, and various sources of heterogeneity. Future research directions in terms of conducting additional trials in the vaccination context, improving methodological quality and rigor, assessment of global acceptability and feasibility of interventions, and inclusion of outcomes that stakeholders consider to be important (eg, compliance) are recommended. Given concerns about pain and fear are known contributors to vaccine hesitancy, improving and expanding this evidence base will be integral to broader efforts to improve vaccine compliance and public health worldwide.
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Affiliation(s)
- Melanie Noel
- Department of Psychology, University of Calgary, AB, Canada
| | - Anna Taddio
- Leslie Dan Faculty of Pharmacy, University of Toronto, and Senior Associate Scientist, The Hospital for Sick Children
| | - C. Meghan McMurtry
- Department of Psychology, University of Guelph, Associate Scientist, Children’s Health Research Institute, and Adjunct Researcher, Department of Paediatrics, Western University, London, Ontario
| | - Christine T. Chambers
- Departments of Pediatrics and Psychology & Neuroscience, Dalhousie University & Centre for Pediatric Pain Research IWK Health Centre, Halifax, Nova Scotia
| | - Rebecca Pillai Riddell
- York University, Toronto, Ontario; Scientific Staff, Psychiatry, The Hospital for Sick Children; Adjunct Associate Professor, University of Toronto
| | - Vibhuti Shah
- Neonatologist and Epidemiologist, Mount Sinai Hospital, and Associate Professor, Health Policy Management and Evaluation, Faculty of Medicine, University of Toronto, Toronto, Ontario
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43
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Remembering the pain of childhood: applying a developmental perspective to the study of pain memories. Pain 2015; 156:31-34. [PMID: 25599297 DOI: 10.1016/j.pain.0000000000000001] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Tschugg A, Löscher WN, Hartmann S, Neururer S, Wildauer M, Thomé C. Gender Influences Radicular Pain Perception in Patients with Lumbar Disc Herniation. J Womens Health (Larchmt) 2015; 24:771-6. [DOI: 10.1089/jwh.2014.5108] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Anja Tschugg
- Department of Neurosurgery, Medical University Innsbruck, Innsbruck, Austria
| | | | - Sebastian Hartmann
- Department of Neurosurgery, Medical University Innsbruck, Innsbruck, Austria
| | - Sabrina Neururer
- Department of Medical Statistics and Health Economics, Medical University Innsbruck, Innsbruck, Austria
| | - Matthias Wildauer
- Department of Neuroradiology, Medical University Innsbruck, Innsbruck, Austria
| | - Claudius Thomé
- Department of Neurosurgery, Medical University Innsbruck, Innsbruck, Austria
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45
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[Neuropathic pain. How to open the blackbox]. Schmerz 2015; 29:479-80, 482-5. [PMID: 26264897 DOI: 10.1007/s00482-015-0028-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
This article, without presuming to be comprehensive, gives a brief outline of the development of research on neuropathic pain in Germany. Current clinical research on this subject focusses on the validation of human models, patient phenotyping, mechanism-based classification and treatment as well as on molecular pathomechanisms. This clinical research is based to a large extent on the work of several internationally recognized basic researchers in the 1990s. In particular, findings from system physiology led to the analysis of clinical phenotypes and the underlying pathophysiology. In parallel, basic research achieved international top levels through the development of innovative methods. Close cooperation, building of consortia and European networking made major contributions to the success of this research.
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46
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Walker SM, Beggs S, Baccei ML. Persistent changes in peripheral and spinal nociceptive processing after early tissue injury. Exp Neurol 2015; 275 Pt 2:253-60. [PMID: 26103453 DOI: 10.1016/j.expneurol.2015.06.020] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 06/16/2015] [Accepted: 06/18/2015] [Indexed: 12/11/2022]
Abstract
It has become clear that tissue damage during a critical period of early life can result in long-term changes in pain sensitivity, but the underlying mechanisms remain to be fully elucidated. Here we review the clinical and preclinical evidence for persistent alterations in nociceptive processing following neonatal tissue injury, which collectively point to the existence of both a widespread hypoalgesia at baseline as well as an exacerbated degree of hyperalgesia following a subsequent insult to the same somatotopic region. We also highlight recent work investigating the effects of early trauma on the organization and function of ascending pain pathways at a cellular and molecular level. These effects of neonatal injury include altered ion channel expression in both primary afferent and spinal cord neurons, shifts in the balance between synaptic excitation and inhibition within the superficial dorsal horn (SDH) network, and a 'priming' of microglial responses in the adult SDH. A better understanding of how early tissue damage influences the maturation of nociceptive circuits could yield new insight into strategies to minimize the long-term consequences of essential, but invasive, medical procedures on the developing somatosensory system.
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Affiliation(s)
- Suellen M Walker
- Pain Research (Respiratory Critical Care and Anaesthesia), UCL Institute of Child Health, Department of Anaesthesia and Pain Medicine, Great Ormond Street Hospital for Children NHS Foundation Trust, London, United Kingdom; Department of Neuroscience, Physiology and Pharmacology, University College London, London, United Kingdom
| | - Simon Beggs
- Program in Neurosciences and Mental Health, The Hospital for Sick Children and Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - Mark L Baccei
- Pain Research Center, Dept. of Anesthesiology, University of Cincinnati, Cincinnati, OH USA.
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Birnie KA, Parker JA, Chambers CT. Relevance of Water Temperature, Apparatus, and Age to Children's Pain during the Cold Pressor Task. Pain Pract 2014; 16:46-56. [PMID: 25385307 DOI: 10.1111/papr.12257] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 08/27/2014] [Accepted: 09/01/2014] [Indexed: 02/04/2023]
Abstract
BACKGROUND Effective use of experimental pain in research depends on a thorough understanding of factors influencing their use. Although studies using the cold pressor task (CPT) have critically advanced our knowledge of pain mechanisms, assessment, and management in adults and children, the impact of identified methodological variability in its use is not known (ie, water temperature and apparatus); furthermore, whether methodological variations differentially impact children across development. METHODS Pain outcomes were examined in 113 healthy children from three age groups (8- to 9-, 10- to 11-, and 12- to 14-year-olds) who completed three CPTs at different water temperatures (5, 7, 10°C) in counterbalanced order. Children were randomly assigned to one of two apparatus (ice- vs. electric-cooled) for all CPTs. Children's hand was warmed to its baseline temperature between CPTs. RESULTS Colder water (2 to 3°C decreases) was associated with significantly higher pain intensity and unpleasantness, and lower pain tolerance and threshold. Older children (12 to 14 years) reported significantly worse pain intensity and unpleasantness as compared to 8- to 9-year-olds, likely due to longer pain tolerance. Pain outcomes in 10- to 11-year-olds fell between the other age groups, with significant differences for pain unpleasantness and pain tolerance (at 10°C). Higher pain-related fear and pain unpleasantness occurred with the electric-cooled apparatus. Girls had higher pain tolerance and threshold at all temperatures. CONCLUSIONS These results provide critically important information about water temperature, apparatus, and child age on CPT pain responding. It informs design of future CPT studies and directs consideration of methodological variability and child age when interpreting study findings.
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Affiliation(s)
- Kathryn A Birnie
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, Nova Scotia, Canada.,Centre for Pediatric Pain Research, IWK Health Centre, Halifax, Nova Scotia, Canada
| | - Jennifer A Parker
- Centre for Pediatric Pain Research, IWK Health Centre, Halifax, Nova Scotia, Canada
| | - Christine T Chambers
- Department of Psychology and Neuroscience, Dalhousie University, Halifax, Nova Scotia, Canada.,Centre for Pediatric Pain Research, IWK Health Centre, Halifax, Nova Scotia, Canada.,Department of Pediatrics, Dalhousie University, Halifax, Nova Scotia, Canada
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48
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Wang R, Cui L, Zhou W, Wang C, Zhang J, Wang K, Svensson P. Reliability study of thermal quantitative sensory testing in healthy Chinese. Somatosens Mot Res 2014; 31:198-203. [PMID: 24945099 DOI: 10.3109/08990220.2014.914485] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Test-retest reliability is important to establish for any diagnostic tool. The reliability of quantitative sensory testing (QST) in the trigeminal region has recently been described in Caucasians as well as differences in absolute thresholds and responses between Caucasians and Chinese. However, the test-retest reliability has not been determined in a Chinese population. OBJECTIVE To provide novel information on the test-retest reliability of thermal QST in the trigeminal and spinal system in healthy Chinese. METHODS Twenty healthy volunteers (10 women and 10 men) participated. Cold detection threshold (CDT), warm detection threshold (WDT), cold pain threshold (CPT), and heat pain threshold (HPT) were measured at two sites: the surface of the left hand and the left masseter. The testing was performed over three consecutive stimuli trials, three sessions conducted on one day and repeated one week later. Data were analyzed with intra-tester reliability test and four-way analysis of variance (ANOVA) for repeated measures. RESULTS There was a tendency for the first trial in CDT (p = 0.005), CPT (p = 0.02), and HPT (p < 0.001) to reflect higher sensitivity than the subsequent two trials. Most variables showed acceptable to excellent reliability and non-significant difference across different trials (ICC: 0.912-0.989), sessions (ICC: 0.791-0.977), and days (ICC: 0.415-0.837). Between-site differences were significant for CDT (p = 0.003) and HPT (p = 0.045) with higher sensitivity at the masseter muscle. There were significant gender differences with higher sensitivity in women for CPT (p = 0.001) and HPT (p = 0.001). CONCLUSION Test site and gender affect thermal thresholds substantially. The test-retest reliability of most thermal threshold measures were acceptable for assessing somatosensory function, however, innocuous thresholds appear to be associated with larger variability than noxious thresholds in a Chinese population.
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Affiliation(s)
- Ruixia Wang
- Orofacial Pain & TMD Research Unit, Institute of Stomatology, Affiliated Hospital of Stomatology, Nanjing Medical University , Nanjing , China
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Boerner KE, Birnie KA, Caes L, Schinkel M, Chambers CT. Sex differences in experimental pain among healthy children: A systematic review and meta-analysis. Pain 2014; 155:983-993. [DOI: 10.1016/j.pain.2014.01.031] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 12/19/2013] [Accepted: 01/30/2014] [Indexed: 01/12/2023]
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50
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de Lalouvière LLH, Ioannou Y, Fitzgerald M. Neural mechanisms underlying the pain of juvenile idiopathic arthritis. Nat Rev Rheumatol 2014; 10:205-11. [DOI: 10.1038/nrrheum.2014.4] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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