Superiority of OxyMaskTM with less carbon dioxide rebreathing in children

Despite the growing importance of oxygen-delivery devices worldwide, there are only a few reports physiological data on various oxygen masks in children. The possibility carbon dioxide (CO2) rebreathing has been prevalent concern with use devices. OxyMask KidTM (Southmedic Inc. Canada; hereafter OxyMask) is expected to reduce CO2 even at low flow rates because its structural features. Biological using children have not well investigated. Measured respiratory parameters those simple mask healthy were compared. Ten subjects enrolled, median age 5.4 years. All used both and mask. fraction inspiratory (FIO2), partial pressure (PICO2), end-tidal measured sidestream gas-sampling monitor all subjects. rate was set 1, 3, 5, 10 L/min. FIO2 levels higher than 3 L/min oxygen. PICO2 significantly lower (1.5 mmHg vs. 3.7 1 L/min, P = 0.005; 1.0 2.7 0.005, respectively), whereas masks. Conclusion: Our results showed that less achieved