Researchers from Cardiff University Describe Findings in Positive-Pressure Respiration (Tidal breathing in preterm infants receiving and weaning from continuous positive airway pressure)
By a News Reporter-Staff News Editor at Health & Medicine Week -- Fresh data on Positive-Pressure Respiration are presented in a new report. According to news reporting out of Cardiff, United Kingdom, by NewsRx editors, research stated, "To compare tidal breathing on different continuous positive airway pressure (CPAP) devices and pressures and to serially measure tidal breathing during weaning off CPAP using electromagnetic inductive plethysmography. Using electromagnetic inductive plethysmography, tidal breathing was measured in 29 preterm infants receiving CPAP, gestational age 28 ± 2 weeks."
Our news journalists obtained a quote from the research from Cardiff University, "Variable-flow nasal CPAP (nCPAP), bubble CPAP (bCPAP) at pressures of 5, 7, and 9 cmH2O, nasal bi-level positive airway pressure (nBiPAP) system at pressures of 5, 7/5, and 9/5 cmH2O, and unsupported breathing were studied. Twenty-one infants had weekly tidal breathing measurements on and off nCPAP. Minute volume (MV/kg) was similar between all devices (0.30-0.33 L/kg/min). On bCPAP, weight corrected tidal volume (VT/kg) was the least, changing little with increasing pressures. On nCPAP and nBiPAP, VT/kg increased with increasing pressure and the respiratory rate (fR) decreased. The delivered pressure varied slightly from the set pressure being most dissimilar on nBiPAP and similar on bCPAP. Compared with unsupported breathing, all devices decreased VT/kg, MV/kg, and phase angle, but did not alter fR. Serial tidal breathing measurements showed decreasing difference for VT/kg over time on and off nCPAP. At different pressure settings, on all CPAP devices the measured MV/kg was similar either through increasing VT/kg and decreasing fR (nCPAP and nBiPAP) or maintaining both (bCPAP)."
According to the news editors, the research concluded: "Serial tidal breathing measurements may aid weaning from CPAP."
For more information on this research see: Tidal breathing in preterm infants receiving and weaning from continuous positive airway pressure. The Journal of Pediatrics, 2014;164(5):1058-1063.e1 (see also Positive-Pressure Respiration).
Our news journalists report that additional information may be obtained by contacting N. Pickerd, Dept. of Child Health, Cardiff University, Cardiff, UK. Additional authors for this research include E.M. Williams, W.J. Watkins and S. Kotecha.
Keywords for this news article include: Europe, Cardiff, United Kingdom, Respiratory Therapy, Positive Pressure Respiration, Positive-Pressure Respiration, Continuous Positive Airway Pressure.
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