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Near-infrared spectroscopy (NIRS) is a continuous and non-invasive technology that measures regional tissue oxygen saturation (rSO2). Whatever the anatomical site of measurement, a normal value of rSO2 would suggest a good adequacy between oxygen supply and consumption at the regional level. Beside the trend ability of previous 2 or 3-wavelength devices, a new 4-wavelength generation of NIRS monitors which could reliably assess real-time absolute values of rSO2 is now available. The investigators aimed to compare peripheral absolute rSO2 values given by the 4-wavelength EQUANOX device 7600 (Nonin Medical, Plymouth, Mn) and the new O3 device (Masimo, Irvine, CA) during conventional cardiac surgery.
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| Measure | Description | Time Frame |
|---|---|---|
| Peripheral absolute rSO2 values | Peripheral absolute rSO2 values given by the 4-wavelength EQUANOX device 7600 (Nonin Medical, Plymouth, Mn) and the new O3 device (Masimo, Irvine, CA) during conventional cardiac surgery. | at conventional cardiac surgery (Day 1) |
| Measure | Description | Time Frame |
|---|---|---|
| Arterial pressure | General monitoring | at conventional cardiac surgery (Day 1) |
| heart rate | General monitoring | at conventional cardiac surgery (Day 1) |
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Inclusion Criteria:
Exclusion Criteria:
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Were included 20 caucasian adult patients scheduled for conventional elective cardiac surgery with cardiopulmonary bypass.
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| Name | Affiliation | Role |
|---|---|---|
| Jean-Luc Fellahi, Pr, MD PhD | Hôpital Cardiovasculaire et Pneumologique Louis Pradel, Hospices Civils de Lyon | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Hôpital Cardiovasculaire et Pneumologique Louis Pradel, Hospices Civils de Lyon | Bron | 69500 | France |
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| pulse oxygen saturation | General monitoring | at conventional cardiac surgery (Day 1) |
| bispectral index | General monitoring | at conventional cardiac surgery (Day 1) |
| Inotrope drugs doses | at conventional cardiac surgery (Day 1) |