①目的探讨小潮气量及压力支持通气（ＰＳＶ）在早期急性呼吸窘迫综合征（ＡＲＤＳ）治疗中的应用。②方法按６～８ｍｌ／ｋｇ体重潮气量机械通气，适当给予呼气末正压（ＰＥＥＰ），选用ＰＳＶ方式撤机。③结果早期ＡＲＤＳ按上述方法行机械通气治疗，可迅速改善肺换气功能，提高动脉血氧分压，减慢呼吸频率，撤机安全、可靠。④结论该模式可靠，有临床使用价值 Objective To investigate the application of small tidal volume and pressure support ventilation (PSV) in the treatment of early acute respiratory distress syndrome (ARDS). ② Methods 6 ~ 8ml / kg body weight tidal volume of mechanical ventilation, appropriate expiratory pressure (PEEP), the choice of PSV weaning. ③ Results Early ARDS mechanical ventilation treatment according to the above method can rapidly improve pulmonary ventilation function, improve arterial oxygen pressure, slow breathing rate, weaning safe and reliable. ④ Conclusion This model is reliable and has clinical value