Concurrent validity of electronic von Frey as an assessment tool for burn associated pain.

Burns : Journal of the International Society for Burn Injuries
Ana Kely de Loyola DiógenesMariana Lima Vale

Abstract

An important challenge in pain assessment is the inability of an evaluator to corroborate, using objective signs or indicators, the subjective pain report of a patient. In this scenario, the Electronic von Frey (EVF) anaesthesiometer rises as a valuable Quantitative Sensory Testing modality for pain evaluation. Although EVF showed good reproducibility when applied to healthy areas in humans, its use for evaluation of burn-related pain threshold has not yet been validated. The present study demonstrated the concurrent validity of EVF by determining its correlation with the traditionally used Visual Analog Scale (VAS). EVF was compared to VAS through pain measurements obtained from 44 patients with superficial partial thickness burns treated with silver sulfadiazine. A very good and significant positive correlation between both methods was detected. Baseline clinical and demographic parameters did not significantly affect the association between EVF and VAS. Additionally, EVF had significant and moderate positive correlation with the amount of analgesic used and with the Burns Specific Pain Anxiety Scale scores. Regular pain assessment is essential for the establishment of an appropriate treatment plan; thus, it is critical that ...Continue Reading

Citations

Jul 1, 2020·Journal of Burn Care & Research : Official Publication of the American Burn Association·Edmar Maciel Lima JúniorMaria Elisabete Amaral de Moraes

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