Resp Care
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Randomized Controlled Trial Comparative Study
AccuO2 oximetry-driven oxygen-conserving device versus fixed-dose oxygen devices in stable COPD patients.
Because standard home oxygen (O2) systems deliver O2 at fixed rates, these systems are not designed to ensure optimal oxygen delivery based on physiologic need. We tested the ability of the AccuO2 (OptiSat Medical, Minneapolis, Minnesota), a portable, closed-loop, oximetry-driven, O2-conserving device to maintain SpO2 at ≥ 90%, compared to continuous-flow oxygen and a standard O2-conserving device (CR-50, Puritan-Bennett, Pleasanton, California). ⋯ Compared to continuous-flow O2 or the CR-50, the AccuO2 maintained SpO2 closer to the target, and AccuO2 had a higher conservation ratio than CR-50.