简易持续气道正压 (ＣＰＡＰ)是在患儿有自主呼吸的基础上 ,不论吸气期或呼气期 ,呼吸机均向气道内输送一恒定的正压气流 ,呼气时呼气动作持续到肺泡内压力不再高于气道内压力为止 ;可使肺泡扩张 ,增加功能残气量 ,改善肺泡内气体交换 ,降低心输出量 ,提高ＰａＯ2 。我科通过 6 Simple continuous positive airway pressure (CPAP) is based on spontaneous breathing in children, regardless of inspiratory or expiratory period, the ventilator to the airway to send a constant positive pressure air flow, expiratory breath expiration continued To the pressure within the alveolar no longer than the airway pressure so far; alveolar expansion can increase the amount of functional residual capacity to improve gas exchange in the alveoli, reduce cardiac output, increase PaO2. My department passed 6