Flow-synchronized Nasal IMV in Preterm Infants

"During the study each infant will undergo a 2-hour period of NIMV at a frequency of 30 cycles per minute.~NIMV will be provided by a time cycled, pressure limited neonatal ventilator (Puritan Bennett 840, Covidien, Boulder, CO)."

"During the study each infant will undergo a 2-hour period of S-NIMV at a frequency of 30 cycles per minute.~S-NIMV will be provided by a time cycled, pressure limited neonatal ventilator, with leak compensation capacity and nasal flow triggered ventilation (Puritan Bennett 840, Covidien, Boulder, CO). Synchronization will be achieved by the leak compensation software and the internal sensor of the ventilator."