RT Journal Article
SR Electronic
T1 Mask versus nasal prong leak and intermittent hypoxia during continuous positive airway pressure in very preterm infants
JF Archives of Disease in Childhood - Fetal and Neonatal Edition
JO Arch Dis Child Fetal Neonatal Ed
FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health
SP 81
OP 83
DO 10.1136/archdischild-2020-319092
VO 106
IS 1
A1 Christian F Poets
A1 Kathleen Lim
A1 Andrew Marshall
A1 Hamish Jackson
A1 Timothy J Gale
A1 Peter A Dargaville
YR 2021
UL http://fn.bmj.com/content/106/1/81.abstract
AB Background Nasal continuous positive airway pressure (NCPAP) can be applied via binasal prongs or nasal masks; both may be associated with air leak and intermittent hypoxia. We investigated whether the latter is more frequent with nasal masks or prongs.Methods Continuous 24 hours recordings of inspired oxygen fraction (FiO2), pulse rate, respiratory rate, pulse oximeter saturation (SpO2) and CPAP level were made in preterm infants with respiratory insufficiency (n=20) managed on CPAP in the NICU at the Royal Hobart Hospital. As part of routine care, nasal interfaces were alternated 4-hourly between mask and prongs. In each recording, the first two segments containing at least 3 hours of artefact-free signal for each interface were selected. Recordings were analysed for episodes with hypoxaemia (SpO2 <80% for ≥10 s) and bradycardia (pulse rate <80/min for ≥4 s) and for episodes of pressure loss at the nasal interface. Data were compared using Wilcoxon-matched pairs test and are reported as median (IQR).Results Infants had a gestational age at birth of 26 (25-27) weeks and postnatal age of 17 (14–24) days. There was no difference in %time with interface leak between prong and mask (0.9 (0–8)% vs 1.1 (0–18)%, p=0.82), %time with SpO2 <80% (0.15 (0–1.2)% vs 0.06 (0–0.8)%, p=0.74) or heart rate <80/min (0.03 (0–0.2)% vs 0 (0–0.2)%, p=0.64). Three infants had interface leak for >10% of the time with prongs and 5 with the mask.Conclusion Both interfaces resulted in a similarly stable provision of positive airway pressure, and there was also no difference in the occurrence of intermittent hypoxia.