Respiratory Function Monitor Guidance of Mask Ventilation in the Delivery Room: A Feasibility Study
2012
Schmölzer, Georg M. | Morley, Colin J. | Wong, Connie | Dawson, Jennifer A. | Kamlin, Camille Omar F. | Donath, Susan M. | Hooper, Stuart B. | Davis, Peter G.
OBJECTIVE: To investigate whether using a respiratory function monitor (RFM) during mask resuscitation of preterm infants reduces face mask leak and improves tidal volume (VT). STUDY DESIGN: Infants receiving mask resuscitation were randomized to have the display of an RFM (airway pressure, flow, and VT waves) either visible or masked. RESULT: Twenty-six infants had the RFM visible, and 23 had the RFM masked. The median mask leak was 37% (IQR, 21%-54%) in the visible RFM group and 54% (IQR, 37%-82%) in the masked RFM group (P = .01). Mask repositioning was done in 19 infants (73%) of the visible group and in 6 infants (26%) of the masked group (P = .001). The median expired VT was similar in the 2 groups. Oxygen was provided to 61% of the visible RFM group and 87% of the RFM masked group (P = .044). Continuous positive airway pressure use was greater in the visible RFM group (73% vs 43%; P = .035). Intubation in the delivery room was done in 21% of the visible group and in 57% of the masked group (P = .035). CONCLUSION: Using an RFM was associated with significantly less mask leak, more mask adjustments, and a lower rate of excessive VT.
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