The evaluation of smartphone versions of the visual analogue scale and numeric rating scale as postoperative pain assessment tools: a prospective randomized trial

Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie
Lily Y L ChiuCynthia Yarnold

Abstract

The Pain assessment using a novel digital application (Panda) is a smartphone application that contains the digital versions of the visual analogue scale (VAS-100) and numeric rating scale (NRS-11). This study aimed to investigate if the Panda versions of these two pain scales are equivalent to the paper versions in adult patients. This was a prospective, randomized, cross-over-controlled trial of subjects aged 19-75 yr undergoing procedures with anticipated post-surgical pain. Each subject used both the Panda and paper versions of VAS-100 or NRS-11 pain scores after emergence from anesthesia and after meeting postanesthesia care unit (PACU) discharge criteria. Correlations between the two tools were analyzed, and Bland-Altman agreement was calculated. The smartphone and paper versions were considered equivalent at each time point if the differences (and their 95% confidence interval [CI]) between them were less than 20 points for the VAS-100 and 2.1 for NRS-11. The two versions of the VAS-100 correlated strongly after emergence (Pearson's r = 0.93; P < 0.001) and upon meeting discharge criteria (r = 0.94; P < 0.001); the mean (standard deviation [SD]) Panda score after emergence was 35 (27) compared with the paper score of 37 ...Continue Reading

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Citations

Jun 6, 2020·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·Alexander DottoCynthia H Yarnold

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