Endotracheal suctioning: open versus closed with and without positive end-expiratory pressure.
Endotracheal suctioning: open versus closed with and without positive end-expiratory pressure.
复制标题
气管内抽吸：开放式与封闭式（有或没有呼气末正压）。
DOI：
10.1097/00002727-200208000-00003
复制
发表时间：
2002
影响因子：
1.4
通讯作者：
Rogge,JoyceA
中科院分区：
文献类型：
--
作者：
Baun,MaraM;Stone,KathleenS;Rogge,JoyceA
在零呼气末压（ZEEP）和10cmH2O呼气末正压（PEEP）条件下，对开放式和封闭式两种吸氧系统进行比较。以2× 2设计的四种方案随机顺序给予12只麻醉和油酸损伤的动物。两种方案的动脉二氧化碳分压（PaCO2）、动脉血氧饱和度（SaO2）、气道压（Paw）、右心房压（Pra）、胸内压（Pit）、动脉压和右心室后负荷差异有统计学意义。胸内压和主动脉收缩压在开放和封闭系统之间存在差异。ZEEP和PEEP在PaCO2、SaO2、Paw、Pra、Pit、主动脉压和右心室后负荷方面差异有统计学意义。通过封闭系统抽吸受试者的反应几乎没有差异，但在PEEP打开和关闭时抽吸受试者时存在临床显著差异。
An open system of delivery of supplemental oxygen was compared with a closed system during endotracheal suction (ETS) at zero end-expiratory pressure (ZEEP) and 10 cm H 2 O positive end-expiratory pressure (PEEP). Four protocols in a 2× 2 design were administered in random order to 12 anesthetized and oleic acid–injured animals. Statistically significant differences were found between protocols for arterial carbon dioxide tension (PaCO 2), arterial oxygen saturation (SaO 2), airway pressure (Paw), right atrial pressure (Pra), intrathoracic pressure (Pit), arterial pressure, and right ventricular afterload. Intrathoracic pressure and systolic aortic pressure differed between open and closed systems. Statistically significant differences between ZEEP and PEEP were found for PaCO 2, SaO 2, Paw, Pra, Pit, aortic pressure, and right ventricular afterload. Suctioning through a closed system made little difference in subject responses, but clinically significant differences existed when suctioning subjects on and off PEEP.