Volume Guarantee Ventilation in Preterm Infants With Frequent Episodes of Hypoxemia

"This is a crossover study. Infants will be randomly assigned to one of two sequences.~In sequence A, the infant will undergo a 24-hour period of conventional mechanical ventilation followed by a 24 hour period of volume guarantee ventilation.~Both conventional mechanical ventilation and volume guarantee ventilation will be provided by the same neonatal ventilator (AVEA, CareFusion Inc, Yorba Linda, CA).~During the 24 hour period of conventional mechanical ventilation, the infant will receive mechanical ventilation with the settings determined by the clinical team.~During volume guarantee ventilation, the set tidal volume to be maintained by the ventilator will be the average tidal volume delivered by the ventilator prior to start of study."

"This is a crossover study. Infants will be randomly assigned to one of two sequences.~In sequence B, the infant will undergo a 24-hour period of volume guarantee ventilation followed by a 24 hour period of conventional mechanical ventilation.~Both conventional mechanical ventilation and volume guarantee ventilation will be provided by the same neonatal ventilator (AVEA, CareFusion Inc, Yorba Linda, CA).~During the 24 hour period of conventional mechanical ventilation, the infant will receive mechanical ventilation with the settings determined by the clinical team.~During volume guarantee ventilation, the set tidal volume to be maintained by the ventilator will be the average tidal volume delivered by the ventilator prior to start of study."