1. Sustained Inflations (SI) Sustained inflations (SI) are commonly utilized in the intensive care unit as a recruitment maneuver. In SI, the patient is given a prolonged positive pressure breath (usually between 30 and 45 cm H2O) lasting between 15 and 40 seconds. Clinically, this maneuver is applied following a derecruitment, such as suctioning, or when the patient exhibits hypoxemia. This strategy is currently employed in the Children's Hospital Boston Medical-Surgical Intensive Care Unit in some patients with lung injury, though there is no published evidence of its safety or efficacy in children. Could we put the 3 SI studies in premature infants that use 20-40 cmH20 followed by CPAP? 1 was a rabbit study. The studies described below regard sustained inflation recruitment maneuvers.