• Jacqueline F M van Dijk, Albert J M van Wijck, Teus H Kappen, Linda M Peelen, Cor J Kalkman, and Marieke J Schuurmans.
• Department of Anaesthesiology, University Medical Center Utrecht, Pain Clinic, Utrecht, The Netherlands. Electronic address: j.f.m.vandijk@umcutrecht.nl.
• Pain Manag Nurs. 2015 Apr 1; 16 (2): 137-45.

AbstractGuidelines for postoperative pain treatment are based on patients' pain scores. Patients with an intermediate Numeric Rating Scale (NRS) score of 5 or 6 may consider their pain as either bearable or unbearable, which makes it difficult to decide on pain treatment because guidelines advise professionals to treat pain at NRS > 4. Educating patients in using an NRS score for pain might improve adequate pain treatment. A quasi-randomized controlled trial was conducted in which 194 preoperative patients watched the educational film and 183 the control film. Pain scores were considered discordant when patients reported an NRS ≤ 4 and wanted additional opioids or when patients reported an NRS > 4 and did not want additional opioids. Beliefs, fear, and knowledge of pain; pain assessment; and pain treatment were measured by questionnaires. No significant differences in discordant pain scores between the groups were found: relative risk (RR) 0.73, confidence interval (CI) 0.47-1.15 at rest and RR 0.96, CI 0.72-1.28 at movement. Patients in the intervention group had lower NRS pain scores than patients in the control group. In the intervention group, patients had significantly more knowledge and lower barriers to pain management compared with the control group. We did not find a statistically significant reduction in discordant pain scores when comparing the intervention group with the control group. However, patients in the intervention group had significantly lower pain scores, lower barriers, and more knowledge of pain treatment than patients in the control group.Copyright © 2015 American Society for Pain Management Nursing. Published by Elsevier Inc. All rights reserved.

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