Clinical Trial: Prediction of Postoperative Pain by Injection Pain of Propofol

Study Status: Not yet recruiting
Recruit Status: Not yet recruiting
Study Type: Observational

Official Title:

Brief Summary:

Postoperative pain is a significant postoperative problem and it could be persistent if proper management is not provided. However, each patient shows different intensity of pain and different sensitivity to analgesics even if they underwent same procedures. Therefore, it would be useful to find the way to predict the postoperative pain sensitivity.

Propofol, a popular anesthetic agent, induces pain during injection, which can not completely prevented by opioid or lidocaine in some patients. This is considered to be related to patient's pain sensitivity and it might be associated with postoperative pain sensitivity.

Therefore, the relation of propofol injection pain and postoperative pain intensity will be explored.


Detailed Summary:
Sponsor: Ajou University School of Medicine

Current Primary Outcome: postoperative pain intensity_1 [ Time Frame: 10 min after postanesthesia care unit admission ]

Postoperative pain will be evaluated with verbal numeric scale (0-10)


Original Primary Outcome: Same as current

Current Secondary Outcome:

  • postoperative pain intensity_2 [ Time Frame: 20 min after postanesthesia care unit admission ]
    Postoperative pain will be evaluated with verbal numeric scale (0-10)
  • postoperative pain intensity_3 [ Time Frame: 30 min after postanesthesia care unit admission ]
    Postoperative pain will be evaluated with verbal numeric scale (0-10)
  • postoperative pain intensity_4 [ Time Frame: 4 hours after operation ]
    Postoperative pain will be evaluated with verbal numeric scale (0-10)
  • postoperative pain intensity_8 [ Time Frame: 8 hours after operation ]
    Postoperative pain will be evaluated with verbal numeric scale (0-10)
  • postoperative pain intensity_12 [ Time Frame: 12 hours after operation ]
    Postoperative pain will be evaluated with verbal numeric scale (0-10)
  • postoperative pain intensity_24 [ Time Frame: 24 hours after operation ]
    Postoperative pain will be evaluated with verbal numeric scale (0-10)


Original Secondary Outcome: Same as current

Information By: Ajou University School of Medicine

Dates:
Date Received: January 12, 2017
Date Started: January 2017
Date Completion: December 2017
Last Updated: January 13, 2017
Last Verified: January 2017