Clinical validity of outcome pain measures in naturally occurring canine osteoarthritis

BMC Veterinary Research

Research Article

Sylvain Bichot¹  Maxim Moreau²  Pascale Rialland²  Dominique Gauvin²  Eric Troncy²  Martin Guillot²  Jean-Pierre Pelletier³  Johanne Martel-Pelletier³  Bertrand Lussier⁴ 

[1] Department of Biomedical Sciences, GREPAQ (Research Group in Animal Pharmacology of Quebec), J2S 7C6, St.-Hyacinthe, (QC), Canada;Department of Biomedical Sciences, GREPAQ (Research Group in Animal Pharmacology of Quebec), J2S 7C6, St.-Hyacinthe, (QC), Canada;Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Notre-Dame Hospital, H2L 4 M1, Montreal, (QC), Canada;Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Notre-Dame Hospital, H2L 4 M1, Montreal, (QC), Canada;Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Notre-Dame Hospital, H2L 4 M1, Montreal, (QC), Canada;The Companion Animal Research Group; Faculty of Veterinary Medicine, Université de Montréal, J2S 7C6, St.-Hyacinthe, (QC), Canada;

关键词: Psychometrics;    Dog osteoarthritis;    Pain;    Metrology;    Kinetics;    Accelerometry;    Behavioral scales;    Skin conductance;   

DOI  :  10.1186/1746-6148-8-162

 received in 2012-01-03, accepted in 2012-08-29,  发布年份 2012

来源: Springer

【 摘 要 】

BackgroundThe conceptual validity of kinetic gait analysis and disability outcome assessment methods has guided their use in the assessment of pain caused by osteoarthritis (OA). No consensus on the best clinical methods for pain evaluation in canine OA exists, particularly, when evaluating treatments where a smaller treatment effect is anticipated than with pharmacological pain killers. This study thus aimed at determining the technical validity of some clinical endpoints on OA pain in dogs using the green-lipped mussel (GLM)-enriched diet.Twenty-three adult dogs with clinical OA completed the prospective controlled study. All the dogs were fed a balanced diet over a 30-day control period followed by a GLM-enriched diet over a 60-day period. The kinetic gait analysis parameter (PVFBW, peak vertical force adjusted for body weight change), electrodermal activity (EDA), and a standardized multifactorial pain questionnaire (MFQ) were performed on day (D) 0 (inclusion), D30 (start) and D90 (end). The owners completed a client-specific outcome measures (CSOM) instrument twice a week. Motor activity (MA) was continuously recorded in seven dogs using telemetered accelerometric counts. We hypothesized that these methods would produce convergent results related to diet changes. A Type I error of 0.05 was adjusted to correct for the multiplicity of the primary clinical endpoints.ResultsNeither the EDA nor the MFQ were found reliable or could be validated. Changes in the PVFBW (Padj = 0.0004), the CSOM (Padj = 0.006) and the MA intensity (Padj = 0.02) from D0 to D90 suggested an effect of diet(s). Only the PVFBW clearly increased after the GLM-diet (Padj = 0.003). The CSOM exhibited a negative relationship with the PVFBW (P = 0.02) and MA duration (P = 0.02).ConclusionsThe PVFBW exhibited the best technical validity for the characterization of the beneficial effect of a GLM-enriched diet. The CSOM and MA appeared less responsive following a GLM-diet, but these measures appeared complementary to gait analysis. Apparently, the CSOM provides the capacity to rely on pain OA assessment influenced by both lameness quantification (PVFBW) and physical functioning (MA).

【 授权许可】

Unknown   
© Rialland et al.; licensee BioMed Central Ltd. 2012. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.