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Pupillometry in Identifying Risk of Postoperative Opioid-induced Respiratory Depression in Children Undergoing Tonsillectomy
Sponsor: NeurOptics Inc
Summary
This study will evaluate whether quantitative pupillometry measurements can be used to identify children at risk for postoperative opioid-induced respiratory depression (OIRD) following tonsillectomy. Opioid-induced respiratory depression is a serious and potentially life-threatening complication that can occur after surgery, and current monitoring approaches are limited in their ability to predict which patients are at highest risk. In this prospective observational cohort study, approximately 300 pediatric patients undergoing tonsillectomy will undergo non-invasive pupillometry measurements at defined perioperative time points, including preoperative, intraoperative, and postoperative periods. Pupillometry measurements will be collected using a commercially available, FDA-regulated infrared pupillometer. These measurements will include pupil size, constriction and dilation velocities, and latency in response to light stimulation. Pupillometry data will be collected for research purposes only and will not be used to guide clinical care or treatment decisions. Standard clinical care will not be altered as part of this study. Clinical outcomes, including the occurrence of postoperative opioid-induced respiratory depression, opioid use, sedation levels, pain scores, and other postoperative events, will be recorded from the medical record. The goal of this study is to evaluate the relationship between pupillary response patterns and the occurrence of postoperative respiratory depression, and to support the development of predictive models that may improve early identification of patients at risk for opioid-related adverse events.
Official title: Pupillometry in Identifying Postoperative Opioid-induced Respiratory Depression in Children Undergoing Tonsillectomy
Key Details
Gender
All
Age Range
3 Years - 17 Years
Study Type
OBSERVATIONAL
Enrollment
300
Start Date
2026-05-04
Completion Date
2027-04-30
Last Updated
2026-05-08
Healthy Volunteers
Yes
Conditions
Interventions
Infrared Pupillometry
Non-invasive pupillometry measurements will be performed using a commercially available, FDA-regulated infrared pupillometer. Measurements will be collected at predefined perioperative time points for research purposes only and will not be used to guide clinical care.
Locations (2)
UCSF Benioff Children's Hospital
San Francisco, California, United States
UPMC Children's Hospital of Pittsburgh
Pittsburgh, Pennsylvania, United States