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.
Procedure Data
Collected from today forward - ProspectiveCase-Only
Examining characteristics of individuals with a disease in order to identify genetic or environmental factors contributing to the condition.Summary
Study start date: October 1, 2009
Actual date on which the first participant was enrolled.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.
Protocol
This section provides details of the study plan, including how the study is designed and what the study is measuring.42 patients to be enrolled
Total number of participants that the clinical trial aims to recruit.Case-only
Eligibility
Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.Any sex
Biological sex of participants that are eligible to enroll.From 25 to 100 Years
Range of ages for which participants are eligible to join.Healthy volunteers not allowed
If individuals who are healthy and do not have the condition being studied can participate.Criteria
Study Plan
Find out more about all the medication administered in this study, their detailed description and what they involve.One single intervention group is designated in this study
This study does not include a placebo group
Treatment Groups
Study Objectives
Primary Objectives
Secondary Objectives
Study Centers
These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.This study has 1 location