目的探讨外源性呼气末正压（PEEP）对气过压力影响的规律。
Objective To study the effects of positive ent -expiratory pressure (PEEP) in airway pressure with a lung model .
目的：探讨根据压力-容积（P-V）曲线选择不同水平的呼气末正压（PEEP），急性呼吸窘迫综合征（ARDS）犬肺容积的变化情况。
Objective: To evaluate the variation of the lung volume in acute respiratory distress syndrome (ARDS) dogs when PEEP set at levels of different inflection points on the pressure volume(P-V) curves.
目的探讨压力控制呼气末正压呼吸小潮气量通气模式治疗创伤性急性呼吸窘迫综合征的疗效。
Objective to explore the curative effects of positive pressure control and low tidal volume ventilation in the treatment of patients with traumatic acute respiratory distress syndrome (ARDS).
在进行标准治疗同时加用NPPV。面罩连接呼吸机，通气模式采用压力支持通气（PSV）加呼气末正压（PEEP）。
NPPV was delivered to the patient by a face mask connected to a ventilator set in pressure support ventilation (PSV) and positive end-expiratory pressure (PEEP).
结论：于呼气末进行按压时的按压力明显大于吸气末。
Conclusions: the stress in the end of expiratory was greater than that in the end of inspiration.
结论：于呼气末进行按压时的按压力明显大于吸气末。
Conclusions: the stress in the end of expiratory was greater than that in the end of inspiration.
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