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The Effect of Tracheal Intubation on AC and DC Components of a Photoplethysmograph

NCT03032939 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 35

Last updated 2017-01-26

No results posted yet for this study

Summary

Intraoperative stress responses (vasoconstriction and changes in heart rate) and postoperative pain can be monitored using photoplethysmography (PPG). PPG measures changes in tissue volume noninvasively. Therefore it can measure acute changes in arterial diameter (vasoconstriction). PPG signal has two components, AC and DC. Effects of noxious stimuli-induced stress responses (vasoconstriction) have not been studied on the DC component of PPG. The aim of this study was to investigate the effect of a known noxious stimulus (endotracheal intubation) on both the AC and DC components of PPG.

Conditions

  • Anesthesia Intubation Complication

Interventions

PROCEDURE

endotracheal intubation

standard endotracheal intubation of surgical patients after induction of anesthesia

Sponsors & Collaborators

Principal Investigators

  • Pekka O Talke, MD · University of California, San Francisco

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2007-12-18
Primary Completion
2012-01-30
Completion
2015-01-30

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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 NCT03032939 on ClinicalTrials.gov