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A Journal on Pediatrics, Neonatology, Adolescent Medicine,
Child and Adolescent Psychiatry
Indexed/Abstracted in: CAB, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 0,532
Minerva Pediatrica 2005 October;57(5):281-4
The increase of oxygen requirement as index to identify the infants at high risk of pneumothorax during nasal continuous positive airway pressure
Migliori B., Pontiggia F., Chirico G.
Aim. The aim of this study was to evaluate the inspiration fraxion of oxygen (FiO2) trend as an indicator of timing to suspend nasal continuous positive airway pressure (N-CPAP) and shift the babies to mechanical ventilation, in order to reduce the incidence of pneumothorax, comparing a similar population admitted in our division during the previous year.
Methods. Seventy-five newborns (mean gestational age 33.5 weeks, mean birth weight 2 072 g) admitted during 2003 in our Neonatal Intensive Care Unit, treated with Infant Flow System™ Nasal-CPAP, were included. Patients with more than 40% increase of the starting FiO2 in the first 24 h of treatment, were intubated and shift on mechanical ventilation. Seventy-seven infants, admitted during the previous year, with similar characteristics (mean gestational age 33.7 weeks, mean birth weight 2 047 g) were considered as control.
Results. Fifty-six neonates improved, 19 worsened and required mechanical ventilation. One of these developed pneumothorax (1.3%). Of the 77 infants admitted during the previous year, 26 worsened and were mechanically ventilated, and 8 developed pneumothorax (10.3%). The difference of incidence of pneumothorax was significant (P =0.0337).
Conclusion. An increase of FiO2 more than 40% of the initial value during the first 24 h of N-CPAP may be considered a useful marker to identify infants at high risk of pneumothorax.