Saito S, Tokioka H, Kosaka F
Department of Anesthesiology and Resuscitology, Okayama University Hospital, Japan.
Crit Care Med. 1990 Jun;18(6):654-6. doi: 10.1097/00003246-199006000-00016.
We investigated clinically the differences in respiratory work of patients imposed by three modes of one ventilator: the flow-by system, the demand valve system, and the pressure support system. Inspiratory work using flow-by and pressure support systems was reduced sufficiently when compared to the demand valve system. Moreover, fluctuation of the airway pressure was minimal with the flow-by mode. These results suggest that the flow-by mode is beneficial to patients breathing spontaneously with continuous positive airway pressure.
我们对一台呼吸机的三种模式（持续气流系统、按需阀系统和压力支持系统）给患者呼吸功带来的差异进行了临床研究。与按需阀系统相比，使用持续气流系统和压力支持系统时的吸气功显著降低。此外，持续气流模式下气道压力的波动最小。这些结果表明，持续气流模式对接受持续气道正压通气的自主呼吸患者有益。
