流量调节持续气道正压通气以尽量减少呼吸做功。

Flow-regulated continuous positive airway pressure to minimize imposed work of breathing.

作者信息

Akashi M, Sakanaka K, Noguchi H, Takumi Y

机构信息

Department of Anesthesiology and Acute Medicine, Aichi Medical University Hospital, Japan.

出版信息

Crit Care Med. 1990 Sep;18(9):999-1002. doi: 10.1097/00003246-199009000-00019.

DOI:10.1097/00003246-199009000-00019

PMID:2203604

Abstract

We have developed a new continuous positive airway pressure (CPAP) system, which consists of an electropneumatic regulator, a microcomputer, and a pneumotachograph placed between the endotracheal tube and the breathing circuit of the CPAP apparatus. This flow-regulated CPAP (FR-CPAP) system delivers a basal flow and also regulates this flow every 20 msec to match the patient's flow demand. To evaluate the performance of this FR-CPAP system, we compared the imposed work of breathing of the FR-CPAP and continuous flow CPAP (CF-CPAP) systems. A model lung was used to simulate spontaneous breathing. The imposed work of breathing of the FR-CPAP system was less than that of the CF-CPAP system. These results indicate that the FR-CPAP system could minimize the imposed work of breathing of a patient receiving CPAP.

摘要

我们研发了一种新的持续气道正压通气（CPAP）系统，它由一个电动气动调节器、一台微型计算机和一个置于气管内导管与CPAP装置呼吸回路之间的呼吸流速计组成。这种流量调节型CPAP（FR-CPAP）系统可输送基础流量，并每隔20毫秒调节一次该流量，以匹配患者的流量需求。为评估这种FR-CPAP系统的性能，我们比较了FR-CPAP系统和持续流量CPAP（CF-CPAP）系统的呼吸附加功。使用模型肺来模拟自主呼吸。FR-CPAP系统的呼吸附加功低于CF-CPAP系统。这些结果表明，FR-CPAP系统可将接受CPAP治疗患者的呼吸附加功降至最低。