Validation and Feasibility of Noninvasive Oxygen Delivery Index Monitoring in Cardiac Surgery Patients
University of Minnesota
Summary
This study will establish the feasibility and preliminary validity of real-time oxygen delivery index (DO₂i) monitoring using noninvasive hemoglobin (SpHb, Masimo) and minimally invasive cardiac output (FloTrac, Edwards) in cardiac surgery patients.
Eligibility
- Age range
- 18+ years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Adults ≥ 18 years undergoing cardiac surgery * Placement of pulmonary artery catheter with continuous cardiac output (CCO) as part of routine clinical care * Placement of arterial line with FloTrac as part of routine clinical care * Availability of ≥ 3 arterial blood gas samples at specified timepoints Exclusion Criteria: * Mechanical circulatory support planned or in use (IABP, Impella, ECMO) * Patients without BOTH pulmonary artery catheter with CCO and arterial line with FloTrac * Patients who are Research Opt-Out
Interventions
- DeviceSpHb monitor
The SpHb monitor is an FDA approved device being used according to its approved indications. No additional invasive procedures, blood draws, or interventions are performed for research purposes.
Location
- University of MinnesotaMinneapolis, Minnesota