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- Essner, Ann, 1971-
(författare)
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On assessment methods related to pain in dogs with osteoarthritis
- 2018
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- There is a need of valid and reliable assessment methods that are clinically applicable in canine rehabilitation practice. The aim of this thesis was to psychometrically evaluate measurement properties in assessment methods related to pain in naturally occurring canine osteoarthritis. Assessment methods developed for heart rate variability analysis, i.e. Polar heart rate monitor, and owner-reported perceptions of pain severity and pain interference with functionality, i.e. Canine Brief Pain Inventory, were tested.Methods: Four observational studies were conducted. Study I was a cross-sectional study consisting of two groups of consecutively recruited dogs. The Canine Brief Pain Inventory was administered to owners of dogs with naturally occurring osteoarthritis (n=61) and clinically sound dogs (n=21). Study II was a descriptive and correlative cross-sectional study based on the same sample of dogs with osteoarthritis (n=71), assessing chronic pain behavior and associations between explanatory variables and chronic pain behavior. Study III and IV were correlative studies, assessing Polar heart rate monitor measuring interbeat intervals and time- and frequency-based heart rate variability parameters, compared to simultaneously recorded electrocardiogram in dogs (n=11).Results: High internal consistencies and ability to discriminate sound dogs from osteoarthritis dogs were found. The hypothesis of the presented two-factor structure of the Canine Brief Pain Inventory was rejected. Owners reported higher proportions of chronic pain behavior in items targeting physical activities, e.g. getting up, moving after rest and moving after major exercise. A minor proportion of dogs with osteoarthritis showed no owner-perceived behavioural signs of chronic pain. Owner observations were not associated with ongoing antiinflammatory medications. In Study III and IV, 595 errors (12.3%) were identified in Polar data. The number of errors were unequally distributed among the dogs. Interbeat intervals and heart rate variability parameters from electrocardiogram and Polar were strongly associated. Standard error of measurements were high among some heart rate variability parameters in Polar and electrocardiogram.In conclusion, this thesis contributes to our knowledge about assessment methods related to diverse components of pain in dogs with osteoarthritis, allowing improved pain management in clinical practice.
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| 2. |
- Essner, Ann, Medicine Doktor, PhD, et al.
(författare)
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Investigating the Probability of Response Bias in Owner-Perceived Pain Assessment in Dogs With Osteoarthritis
- 2020
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Ingår i: Topics in Companion Animal Medicine. - : Elsevier. - 1938-9736 .- 1946-9837. ; 39
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Tidskriftsartikel (refereegranskat)abstract
- Owners’ ability to recognize signs of chronic pain in dogs undergoing pharmacologic and nonpharmacologic pain interventions during a period of physical rehabilitation is not known. This study aimed to compare dogs with and without chronic pain, and to assess the relationship between explanatory factors, including the probability of owners’ response bias induced by pharmacologic and nonpharmacologic pain intervention, and chronic pain in dogs with osteoarthritis (OA). Seventy-one dogs with OA were included in this observational study. Owner-perceived pain interference was measured by Canine Brief Pain Inventory (CBPI) and owner-perceived pain behavior was assessed using Helsinki Chronic Pain Index. A dichotomous variable of Helsinki Chronic Pain Index was used in regression analysis to investigate the association between chronic pain and explanatory factors (body condition, anti-inflammatory medication, animal physiotherapy consultation once or more and owners’ perception of pain interfering). Seventy-five percent of the dogs had ongoing anti-inflammatory medication, 51% of were overweight and 45% had a physiotherapy consultation. Higher levels of overt pain behaviors were reported in items addressing activities. Body condition, physiotherapy consultation and medication were not associated with chronic pain. Odds ratio (OR) and 95% confidence intervals of OR for the CBPI were 1.74 (1.23-2.47) and significantly associated with chronic pain. The adjusted OR of the CBPI did not differ from the crude OR. Owner-perceived pain behavior was not confounded by the dogs’ medication. Results indicated that CBPI was not mediated by the medication. The CBPI pain interference score was not associated with response bias and may be used as clinical outcome measure of chronic pain and pain-related disability in dogs with OA along a period of physical rehabilitation comprising pharmacologic and nonpharmacologic pain interventions.
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