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Relation Between Mixed Venous Oxygen Saturation and Cerebral Oxygen Saturation Measured by Absolute and Relative Near-infrared Spectroscopy During Off-pump Coronary Artery Bypass Grafting.

NCT01673841 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 42

Last updated 2021-07-13

No results posted yet for this study

Summary

In this clinical study the investigators compared mixed venous oxygen saturation (SmvO2) with relative and absolute cerebral oxygen saturation (rScO2) measurements. They hypothesized that previously reported contradictory results regarding the equivalence of SmvO2 and rScO2 might be related to time delay issues and to the measurement technology.

42 consenting patients undergoing elective off-pump coronary artery bypass grafting were included. 4 disposable oxygenation sensors were applied bilaterally on the patient's forehead for continuous, non-invasive registration of rScO2. The sensors of one monitor were placed just above the eyebrows, and the sensors of the other monitor were placed just above the former sensors. The sensors placement was determined at random by a computerized randomization list. SmvO2 was measured continuously via a pulmonary artery catheter. All variables were recorded continuously. The study ended at the end of the operation.

Conditions

  • Elective Off-pump Coronary Artery Bypass Grafting

Interventions

PROCEDURE

Relative and absolute cerebral oxygen saturation (rScO2) measurements.

Sponsors & Collaborators

  • Belgian Foundation for Cardiac Surgery

    collaborator UNKNOWN

  • CAS Medical Systems, Inc.

    collaborator INDUSTRY

  • University Hospital, Ghent

    lead OTHER

Principal Investigators

  • Annelies Moerman, MD · University Hospital, Ghent

Eligibility

Min Age
25 Years
Max Age
100 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2009-10-31
Primary Completion
2011-06-30
Completion
2011-06-30

Countries

  • Belgium

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 NCT01673841 on ClinicalTrials.gov