Investigation of the predictability of pain after implantation of a total hip endoprosthesis using the nociceptive flexion reflex and the pupillary dilatation reflex

• Conditions: Postoperative pain; R52.9; Pain, unspecified

• Registration Number: DRKS00000665
• Lead Sponsor: Charité - Universitätsmedizin Berlin

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2013-04-15
• Study Completion: 2015-11-24
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Complete
• Sex: All
• Target Recruitment: 110

Inclusion Criteria

Implantation of a hip prosthesis, age >= 18 years, completed study information and ability to understand the study information, written informed consent to participate in the study, no participation in other clinical studies while participating in this study

Exclusion Criteria

ASA-Health Status > 3, BMI > 35, regional anesthesia and peridural or spinal anesthesia

Study & Design

• Study Type: observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Correlations between the measured reflex thresholds of the nociceptive flexion reflex (NFRT) and the pupillary dilatation reflex (PDR) immediately before the end of the anesthesia and the subjective pain (evaluated using a numerical rating scale (NRS)) directly after the regain of consciousness