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Pupillary Pain Index to Evaluate Interscalene Block and Postoperative Pain in Patients Underwent Shoulder Surgery

NCT05590767 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 40

Last updated 2024-05-03

Study results available
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Summary

When an individual encounters nociceptive pain stimuli, the pupil dilates in a unique manner known as Pupil reflex dilation (PRD).The degree of pupillary reflex dilatation can be further quantified into an objective parameter, termed the Pupillary pain index (PPI), as a monitoring tool for the balance between nociception and antinociception in surgical patients The motivation for this study is to investigate the feasibility of using pupillometry to assess acute pain after shoulder surgery. The purpose of the study is as follows: (1) Can PDR in patients undergoing general anesthesia be used to assess the analgesic effect of interscalene block? (2) Does PPI at the end of surgical anesthesia in such patients correlate with the first numerical pain scale (NRS) during the recovery room?

Conditions

  • Surgery
  • Shoulder Impingement

Interventions

PROCEDURE

Patients scheduled to undergo shoulder rotators repair surgery

Patients scheduled to undergo shoulder rotators repair surgery, and received combined general anesthesia and interscalene block

Sponsors & Collaborators

  • Tri-Service General Hospital

    lead OTHER

Principal Investigators

  • Yeh Chun-chang, M.D. · Department of Anesthesiology, Tri-Service General Hospital

Eligibility

Min Age
20 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-10-27
Primary Completion
2023-08-17
Completion
2023-08-31

Countries

  • Taiwan

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05590767 on ClinicalTrials.gov