A comparison of underwater bubble continuous positive ... | 合法醫療器材資訊網

由KSLee著作·1998·被引用189次—Objectiveandmethods:Astheresultofvigorousbubbling,infantsreceivingcontinuouspositiveairwaypressure(CPAP)byanunderwaterseal(bubbleCPAP) ...

Objective and methods: As the result of vigorous bubbling, infants receiving continuous positive airway pressure (CPAP) by an underwater seal (bubble CPAP) were observed to have vibrations of their chests at frequencies similar to high-frequency ventilation (HFV). We performed a randomized crossover study in 10 premature infants ready for extubation to test whether bubble CPAP contributes to gas exchange compared to conventional ventilator-derived CPAP. Measurements of tidal volume and minute volume were made using the Bear Cub neonatal volume monitor, and gas exchange was measured using an oxygen saturation monitor and a transcutaneous carbon dioxide (tcpCO2) monitor.

Results: There was a 39% reduction in minute volume (p < 0.001) and a 7% reduction in respiratory rate (p = 0.004) with no change in tcpCO2 or O2 saturation for infants supported with bubble versus ventilator-derived CPAP.