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Ferland CE, Villemure C, Michon PE, Gandhi W, Ma ML, Chouchou F, Parent AJ, Bushnell MC, Lavigne G, Rainville P, Ware MA, Jackson PL, Schweinhardt P, Marchand S. Multicenter assessment of quantitative sensory testing (QST) for the detection of neuropathic-like pain responses using the topical capsaicin model. Can J Pain 2018; 2:266-279. [PMID: 35005384 PMCID: PMC8730652 DOI: 10.1080/24740527.2018.1525682] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Background The use of quantitative sensory testing (QST) in multicenter studies has been quite limited, due in part to lack of standardized procedures among centers. Aim The aim of this study was to assess the application of the capsaicin pain model as a surrogate experimental human model of neuropathic pain in different centers and verify the variation in reports of QST measures across centers. Methods A multicenter study conducted by the Quebec Pain Research Network in six laboratories allowed the evaluation of nine QST parameters in 60 healthy subjects treated with topical capsaicin to model unilateral pain and allodynia. The same measurements (without capsaicin) were taken in 20 patients with chronic neuropathic pain recruited from an independent pain clinic. Results Results revealed that six parameters detected a significant difference between the capsaicin-treated and the control skin areas: (1) cold detection threshold (CDT) and (2) cold pain threshold (CPT) are lower on the capsaicin-treated side, indicating a decreased in cold sensitivity; (3) heat pain threshold (HPT) was lower on the capsaicin-treated side in healthy subjects, suggesting an increased heat pain sensitivity; (4) dynamic mechanical allodynia (DMA); (5) mechanical pain after two stimulations (MPS2); and (6) mechanical pain summation after ten stimulations (MPS10), are increased on the capsaicin-treated side, suggesting an increased in mechanical pain (P < 0.002). CDT, CPT and HPT showed comparable effects across all six centers, with CPT and HPT demonstrating the best sensitivity. Data from the patients showed significant difference between affected and unaffected body side but only with CDT. Conclusion These results provide further support for the application of QST in multicenter studies examining normal and pathological pain responses.
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Affiliation(s)
- Catherine E Ferland
- Quebec Pain Research Network, Université de Sherbrooke, Sherbrooke, QC, Canada.,Research Centre, Shriners Hospitals for Children-Canada, Montreal, QC, Canada.,Department of Anesthesia, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Chantal Villemure
- Alan Edwards Pain Management Unit, McGill University Health Centre, Montreal, QC, Canada
| | - Pierre-Emmanuel Michon
- Division des Neurosciences cliniques et cognitives, centre de recherche CERVO, Université Laval, Quebec, QC, Canada
| | - Wiebke Gandhi
- Centre for Integrative Neuroscience and Neurodynamics, School of Psychology and Clinical Language Sciences, University of Reading, Reading, UK
| | - My-Linh Ma
- Research Centre, Shriners Hospitals for Children-Canada, Montreal, QC, Canada
| | - Florian Chouchou
- Département santé buccale, Faculté de médecine dentaire, Université de Montréal, Montreal, QC, Canada
| | - Alexandre J Parent
- Quebec Pain Research Network, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - M Catherine Bushnell
- National Centre for Complementary and Integrative Health, NIH, Bethesda, MD, USA
| | - Gilles Lavigne
- Quebec Pain Research Network, Université de Sherbrooke, Sherbrooke, QC, Canada.,Département santé buccale, Faculté de médecine dentaire, Université de Montréal, Montreal, QC, Canada
| | - Pierre Rainville
- Quebec Pain Research Network, Université de Sherbrooke, Sherbrooke, QC, Canada.,Centre de recherche de l'Institut universitaire de gériatrie de Montréal (CRIUGM), Montreal, QC, Canada.,Département de stomatologie, Faculté de médecine dentaire, Université de Montréal, Montreal, QC, Canada
| | - Mark A Ware
- Quebec Pain Research Network, Université de Sherbrooke, Sherbrooke, QC, Canada.,Alan Edwards Pain Management Unit, McGill University Health Centre, Montreal, QC, Canada
| | - Philip L Jackson
- Quebec Pain Research Network, Université de Sherbrooke, Sherbrooke, QC, Canada.,Division des Neurosciences cliniques et cognitives, centre de recherche CERVO, Université Laval, Quebec, QC, Canada.,School of Psychology, Université Laval, Quebec, QC, Canada
| | - Petra Schweinhardt
- Quebec Pain Research Network, Université de Sherbrooke, Sherbrooke, QC, Canada.,Department of Neurology and Neurosurgery, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Serge Marchand
- Quebec Pain Research Network, Université de Sherbrooke, Sherbrooke, QC, Canada.,Centre de recherche du CHUS, Sherbrooke, QC, Canada.,Department of Surgery, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Québec, Canada
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