Responding to compliance changes in a lung model during manual ventilation: perhaps volume, rather than pressure, should be displayed.

Pediatrics 123(3):e465-70 (2009) PMID 19188267

The standard technique for positive-pressure ventilation is to regulate the breath size by varying the pressure applied to the bag. Investigators have argued that consistency of peak inspiratory pressure is important. However, research shows that excessive tidal volume delivered with excessive pressure injures preterm lungs, which suggests that inspiratory pressure should be varied during times of changing compliance, such as resuscitation of newborns or treatment after surfactant delivery.