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首页> 外文期刊>Journal of paediatrics and child health >Comparison of the pharyngeal pressure provided by two heated, humidified high-flow nasal cannulae devices in premature infants
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Comparison of the pharyngeal pressure provided by two heated, humidified high-flow nasal cannulae devices in premature infants

机译：比较两个加热，加湿的高流量鼻插管设备为早产儿提供的咽压力

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Aims This study aims to determine if there is a difference in the pharyngeal pressure, measured as a surrogate for continuous positive distending airway pressure, delivered to premature infants between two commonly used heated, humidified high-flow nasal cannulae (HHHFNC) devices: Fisher & Paykel Healthcare HHHFNC and Vapotherm 2000i. Methods Pharyngeal pressure measurements were taken from stable premature infants receiving HHHFNC for respiratory support. Flow rates of 2-8 L/min were studied. Results Nine infants had pharyngeal pressure measurements recorded with both HHHFNC devices at flow rates of 2-8 L/min. There was no difference in pharyngeal pressures recorded between devices at flow rates of 2-6 L/min; measured pressure was linearly associated with flow (R2 = 0.9). At flow rates of 7 L/min, Vapotherm delivered a mean (standard deviation) pharyngeal pressure of 4.7 (2.2) cmH 2O compared with 4.23 (2.2) cmH2O by the Fisher & Paykel device (P = 0.04). At a flow of 8 L/min, the mean pharyngeal pressure via Vapotherm was 4.9 (2.2) cmH2O compared with 4.1 (2.3) cmH 2O with the Fisher & Paykel device (P = 0.05). Conclusions Both HHHFNC delivered similar pharyngeal pressures at flow rates of 2-6 L/min. The pressure limiter valve of the Fisher & Paykel device attenuated the pharyngeal pressures at flows of 7 and 8 L/min. Vapotherm trended towards higher delivered pharyngeal pressure at flow rates 7 and 8 L/min, but the clinical significance of the difference remains unclear.
机译：目的本研究旨在确定在两种常用的加热，加湿的高流量鼻插管（HHHFNC）设备之间，早产儿所获得的咽压力是否存在差异（以持续的正扩张气道压力的替代物来衡量），以进行测量。 Paykel Healthcare HHHFNC和Vapotherm 2000i。方法对接受HHHFNC进行呼吸支持的稳定早产儿进行咽压力测量。研究了2-8 L / min的流速。结果9例婴儿使用两种HHHFNC装置以2-8 L / min的流速记录了咽压。在设备之间，以2-6 L / min的流速记录的咽压力没有差异。测量压力与流量成线性关系（R2 = 0.9）。在7 L / min的流速下，Vapotherm的平均咽压力（标准差）为4.7（2.2）cmH 2 O，而Fisher＆Paykel设备为4.23（2.2）cmH 2 O（P = 0.04）。流量为8 L / min时，通过Vapotherm产生的平均咽部压力为4.9（2.2）cmH2O，而采用Fisher＆Paykel设备的平均咽部压力为4.1（2.3）cmH2O（P = 0.05）。结论两种HHHFNC均以2-6 L / min的流速提供相似的咽压力。 Fisher＆Paykel设备的限压阀以7和8 L / min的流量减弱了咽的压力。 Vapotherm趋向于以7和8 L / min的流速达到更高的咽咽压力，但是这种差异的临床意义尚不清楚。

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