The Portable Helicopter Oxygen Delivery System in the Altitude Chamber: A Comparison between Peripheral and Regional Blood Oxygen Saturation
Abstract
The Portable Helicopter Oxygen Delivery System (PHODS) provides supplemental oxygen (O2) up to altitudes of 18,000 feet (ft) above mean sea level (MSL). Previous PHODS testing at the U.S. Army Aeromedical Research Laboratory (USAARL) used conventional pulse oximetry to monitor peripheral blood O2 saturation (SpO2). The present PHODS test incorporates measures of regional cerebral blood O2 saturation (rSO2). Testing was conducted at pressure altitudes of 14,000 and 17,800 ft above MSL as well as at ground level. Army aircrew volunteers (N = 22) assessed PHODS' functionality and effectiveness during three tasks, 10 minutes (min) of the Psychomotor Vigilance Test, 5 min of text reading, and 2 min of self-paced squats. rSO2 and SpO2 were collected continuously throughout testing. Results indicate that the PHODS maintained SpO2 but not rSO2 throughout all testing. The operational significance of this finding is yet to be determined.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 31, 2020
- Accession Number
- AD1110951
Entities
People
- Aaron Mcatee
- Amanda Hayes
- Bobby Bowers
- Chad Adaway
- Claire Goldie
- Dennis Ard
- Frank A. Petrassi
- Leonald Temme
- Paul St. Onge
- Robert Eshelman
- Sanabria White
- Sherman Paul
- Steven Murty
Organizations
- United States Army Aeromedical Research Lab