Riley Cheryl, Pilcher Jobeth
Baylor Health Care System, Dallas, TX, USA.
Neonatal Netw. 2003 Mar-Apr;22(2):17-22. doi: 10.1891/0730-0832.22.2.17.
Pressure-limited, time-cycled ventilation has been the primary mode of ventilation for neonates for several decades. But the realization that volume rather than pressure causes ventilator-induced lung injury has led to the development of new strategies for ventilation. Volume guarantee is a mode of ventilation that automatically adjusts the inspiratory pressure to achieve a set tidal volume according to changes in lung compliance or resistance or the patient's respiratory drive. Volume-guaranteed ventilation delivers a specific, preset volume of gas, and inspiration ends when it has been delivered. This mode of ventilation requires careful attention to the infant and to ventilator settings.
几十年来,压力限制、时间切换通气一直是新生儿的主要通气模式。但认识到是容量而非压力导致呼吸机相关性肺损伤后,人们开发了新的通气策略。容量保证通气是一种通气模式,它会根据肺顺应性或阻力的变化或患者的呼吸驱动力自动调整吸气压力,以实现设定的潮气量。容量保证通气输送特定的预设气体量,输送完成后吸气结束。这种通气模式需要密切关注婴儿和呼吸机设置。