Intra-gastric Pressures in Neonates Receiving Bubble CPAP

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Abstract
To study intra-gastric pressures in neonates receiving bubble continuous positive airway pressure (BCPAP) by nasopharyngeal prong. Twenty seven neonates were recruited for the study. BCPAP pressure of 6 cm water was used in all the neonates. A pressure sensor attached to orogastric tube, measured the intra-gastric pressure prior to starting BCPAP and again between 30 and 90 min of BCPAP. The clinical variables like Downe’s score, oxygen saturation, venous blood gas pH, pCO2 and abdominal girth were recorded alongside with pressure readings. BCPAP resulted in improvement (p < 0.05) in parameters of respiratory distress such as Downe’s score (DS), oxygen saturation (SpO2) and venous blood gas parameters (pH, pCO2). There was no statistical significant increase in intra-gastric pressures (p = 0.834). There were no gastrointestinal complications; abdominal distention, necrotising enterocolitis or gastric perforation during the study. Nasopharyngeal BCPAP at 6 cm of water pressure is an effective modality of treating babies with respiratory distress and the present study shows that it is not associated with a significant rise in intra-gastric pressures.

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