Measuring pain intensity through physical interaction in an experimental model of cold-induced pain: A method comparison study.

Autor:	Rotevatn EØ; Department of Anaesthesia and Intensive Care, Haukeland University Hospital, Postboks 1400, 5021, Bergen, Norway.; Children and Youth Clinic, Haukeland University Hospital, Bergen, Norway.; Department of Clinical Science, University of Bergen, Bergen, Norway., Engan M; Children and Youth Clinic, Haukeland University Hospital, Bergen, Norway., Stensaker E; Department of Anaesthesia and Intensive Care, Haukeland University Hospital, Postboks 1400, 5021, Bergen, Norway., Hufthammer KO; Centre for Clinical Research, Haukeland University Hospital, Bergen, Norway., Rygh LJ; Department of Anaesthesia and Intensive Care, Haukeland University Hospital, Postboks 1400, 5021, Bergen, Norway.
Jazyk:	angličtina
Zdroj:	Scandinavian journal of pain [Scand J Pain] 2024 Jun 17; Vol. 24 (1). Date of Electronic Publication: 2024 Jun 17 (Print Publication: 2024).
DOI:	10.1515/sjpain-2024-0011
Abstrakt:	Objectives: Assessment of pain is challenging given its subjective nature. Standard pain assessment tools have limitations. We aimed to compare the verbal numeric rating scale (NRS) and Grasp, a novel handheld electronic device that reports pain by squeezing. Methods: To compare Grasp and NRS, healthy adult volunteers were invited to undergo two subsequent standardised tests of cold-triggered pain using a cold pressor test (CPT) at a temperature of 3°C. Pain intensity was in a randomised manner reported by NRS (scale 0-10) or by squeezing Grasp (0-3 V) during the two CPTs. A third CPT was performed 1 to 14 days later where subjects reported pain by Grasp a second time in order to study the association of repeated Grasp measurements. Acceptable association was a priori considered as mean Kendall's τ - b coefficient ( τ - b ) ≥ 0.7. The subjects reported their experience of using Grasp in a purpose-made questionnaire. Results: In total, 102 subjects were included, and 96 subjects (56 females) completed all three tests. The association of pain intensity reported by Grasp and NRS was moderate with a mean τ - b of 0.53 (95% confidence interval [CI] 0.47-0.58). The association between the repeated Grasp measurements was weak with a mean τ - b of 0.43 (95% CI 0.37-0.48). Most subjects reported that Grasp was intuitive and easy to use. Conclusions: Pain intensity reported by squeezing Grasp did not show acceptable association with pain intensity reported by NRS during CPTs. The association between pain intensity reported by Grasp during two CPTs on separate days was weak. Further improvements of the Grasp ball are needed before use in clinical settings. (© 2024 the author(s), published by De Gruyter.)
Databáze:	MEDLINE
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