急性呼吸窘迫综合征患者机械通气时内源性呼气末正压的测定及其意义

The Assay and Significance of The ARDS Patients Intrinsic Positive End-Expiratory Pressure with Mechanical Ventilation

目的:研究急性呼吸窘迫综合征(ARDS)患者机械通气时内源性呼气末正压的发生率,探讨内源性呼气末正压的临床意义。方法:前瞻性应用德尔格Evita 4和Evita 2 dura呼吸机测定34例ARDS患者机械通气时内源性呼气末正压。结果:34例急性呼吸窘迫综合症患者机械通气时内源性呼气末正压发生率为100%,内源性呼气末正压范围为2～15cm H_2O,平均为5.41±2.12cm H_2O,随着病情好转,内源性呼气末正压下降。结论:ARDS患者机械通气时普遍存在内源性呼气末正压,故此对ARDS患者机械通气时随时要注意内源性呼气末正压,减少气压伤的发生率。

Objective:To investigate the incidence of the intrinsic pusitive end-expiratory pressure of the ARDS patients treating with mechanieal ventilation,and to discuss with its significance. Mothods:Measured the intrinsic positive end-expiratory pressure of the 34 ARDS patients treating with meehanical ventilation by useing Drager Evita 4 and Evita 2 dura respiratory prospectively. Results:The incidence of the 34 ARDS patients intrinsic positive end-expiratory pressure treating with mechanical ventilation was 100%.The range of intrinsic positive end-expiratory pressnre was 2～12 cm H-2O,the average range was 5.41±2.12cm H-2O,the intrinsic positive end-expiratory pressure would deseeod with the patient's condition improved.Conclusion:The intrinsic positive end-expiratory pressure existed when the ARDS patients trea-ting with mechanical ventilation,for this reason we should observe the intrinsic positive end-expiratory pressure of the ARDS patients treated with mechanieal ventilation,in order to reduce the incidence of the boratrauma.