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为了改善急性肺损伤(ALI)的机械通气疗效和减少合并症,已对传统的机械通气装置进行了大量的改进,包括辅助通气、间歇指令通气(IMV)、呼气未正压(PEEP)、反向吸呼比和高频低潮气量通气.但尽管进行了以上尝试,自1968年以来,ALI 病人的预后进步不大.为此建议应用气道减压通气(Air-way pressure release ventilation,APRV)以改善ALI 病人的呼吸治疗.在实施APRV 以前,必须维持持续气道正压(CPAP),使病人可进行自主呼吸而无显著的气道压力(Pwa)波动.通过观察、测量、计算对不同CPAP
In order to improve the mechanical ventilation and reduce complications of acute lung injury (ALI), a great number of improvements have been made to traditional mechanical ventilation devices, including assisted ventilation, intermittent mandatory ventilation (IMV), expired non-positive pressure (PEEP) Reverse respiration ratio and high frequency and low tidal volume ventilation.However, despite these attempts, the prognosis of ALI patients has not improved much since 1968. Therefore, it is suggested that air-way pressure release ventilation (APRV ) To improve respiration therapy in patients with ALI. Continuous positive airway pressure (CPAP) must be maintained prior to APRV, allowing patients to breathe spontaneously without significant fluctuations in airway pressure (Pwa). By observing, measuring, Different CPAP