Abstract

BackgroundRAM cannula is used as interface for delivering nasal continuous positive airway pressure (nCPAP) in many neonatal care units though the bench to bedside evidence for its use in clinical settings in lacking. MethodsIn this prospective cohort study from tertiary care neonatal care unit, the primary objective was to determine the rate of CPAP failure using RAM interface, within 72 h of starting of therapy and secondary objective was to look for the incidence and severity of nasal trauma with the use of RAM interface for CPAP delivery. All inborn preterm neonates between 28 and 32 weeks of gestation and weight more than 1000 g who required non-invasive respiratory support within 6 h of life were included in the study. ResultsThe enroled cohort of 250 neonates had mean gestational age of 30.73 ± 1.32 weeks and mean birth weight of 1410 ± 210 g. CPAP failure rate with the use of RAM interface was 31.2% (78/250) in the overall cohort. The failure rate was higher in subgroup of gestation between 28 and 30 week (52.1%) in comparison with the 31–32-week gestation (18.2%; p-value = 0.0001). Nasal trauma was present in 36 (14%) neonates; of whom 33 (91%) had mild and 2 (6%) and 1 (3%) had moderate and severe, respectively. On multivariate analysis, birth weight less than 1250 g, incomplete antenatal steroids, need for PEEP more than 5 cm & FiO2 > 30% at onset of distress and administration of surfactant were found be statistically significantly associated with CPAP failure with RAM interface. ConclusionThe clinical outcomes with the use of RAM interface for CPAP administration are comparable to those with other interfaces with lesser incidence of nasal injury. The results of this study warrant future randomized trials to compare different CPAP interfaces for clinical outcomes and nasal injuries from the developing countries.

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