Development and Validation of New "SNU Illustrated Pain Rating Scale" as a Tool for Postoperative Pain Assessment

• Conditions: Pain Measurement; Acute Pain; Surgery; Postoperative Pain; Anesthesia

• Registration Number: NCT03764046
• Lead Sponsor: Seoul National University Hospital

Brief Summary

The numeric rating scale (NRS), one of the most widely used pain scales in clinical practice, although convenient, is often subject to bias because it requires abstract thinking from both the patient and the evaluator. Compared to numbers, traumatic pain, when visualized appropriately, has potential advantage as a means to indicate and communicate the severity of pain. Given that they are standardized in terms of body parts, wound size, and bleeding volume, illustrations of traumatic pain along with external somatic stimuli that caused it can be used to serve as effective visual anchors to supplement a pain scale by giving more concrete information to the patient. The purpose of this study is to develop Seoul National University Illustrated Pain Scale(SNUIPS) using pictures of traumatic pain, and verify the validity and effectiveness of this scale in comparison with those of NRS.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2018-11-30
• Status Verified: 2018-12
• Study First Submitted QC: 2018-12-03
• Last Update Submitted: 2018-12-03
• Study First Posted: 2018-12-04
• Last Update Posted: 2018-12-04
• Study Start: 2019-01-01
• Primary Completion: 2019-10-31
• Study Completion: 2019-12-31

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 100

Inclusion Criteria

• Adult patients undergoing a gynecological or orthopedic surgery under general anesthesia
• Administered with intravenous patient-controlled analgesia for postoperative pain control
• American Society of Anesthesiologists physical status class I-III patients

Exclusion Criteria

• Contraindicated against fentanyl
• Unable to communicate
• Aged less than 18, or more than 79
• Weighs less than 40kg or more than 89kg
• Has severe heart disease(s)
• Pregnant

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Patient Satisfaction of Postoperative Pain Management	48 hours after surgery	Survey among patients on their level of overall satisfaction on postoperative pain management
Postoperative Pain Scores (NRS)	48 hours after surgery	Self-reported pain intensity based on numeric rating scale evaluated after 48 hours after surgery for assessment of sensitivity to change. Each item is scored from 0 to 10 (0 = no pain; 10 = worst imaginable pain).
Postoperative Pain Scores (SNUIPS)	48 hours after surgery	Self-reported pain intensity based on Seoul National University Illustrated Pain Scale evaluated after 48 hours after surgery. Each item is scored using illustrations that corresponds to 0-10 levels of traumatic pain, beginning from 'no injury and/or pain' to 'causalgia'.
Postoperative Consumption of Patient-Controlled and/or Rescue Analgesics	48 hours after surgery	Amount of analgesics consumed through intravenous patient-controlled analgesia and/or administration of rescue analgesics
Understandability of Pain Scales	48 hours after surgery	Survey among patients on understandability pain scales
Convenience of Pain Scales	48 hours after surgery	Survey among patients on convenience of pain scales

Trial Locations

Locations (1)

Seoul National University Hospital; 🇰🇷 Seoul, Korea, Republic of