Employing Tissue Oxygen Delivery Calculations to Predict Aeromedical Evacuation Patient Outcomes---A Pilot Study
Abstract
In late 2006/early 2007, the notion of tissue oxygen delivery (DO2) was introduced into the aeromedical evacuation (AE) arena. This so-called DO2 paradigm offered up a coherent approach for Theater Validating Flight Surgeons (TVFS) prescribing supplemental oxygen, transfusions, and cabin altitude restriction (CAR). Research into CAR suggested superior post flight outcomes, which, in turn, suggested that good DO2 (> 7.3 ml O2/kg/min) might be a contributing factor. Using data obtained from a retrospective case-control study where a random sample of 50 CAR patients were matched with 50 Non-CAR patients, the DO2-GUI calculated DO2. Independent variables were DO2 and CAR status with postflight procedures, the dependent variable. While the case-control study demonstrated that CAR was associated with significantly fewer postflight procedures, this pilot study likewise found that good DO2 was associated with significantly fewer postflight procedures (p = 0.002). Additionally, DO2 and the number of postflight procedures exhibited a significant dose-response, inverse relationship (p = 0.045). As DO2 rose, the number of postflight procedures fell.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 08, 2020
- Accession Number
- AD1094791
Entities
People
- Anthony Mitchell
- Brittany Fouts
- Daniel P Cole
- Kenneth Egerstrom
- Lawrence Steinkraus
- Susan Connor
- Susan Dukes
- William Butler
Organizations
- 711th Human Performance Wing