Schadelijke negatieve intrapulmonale drukken veroorzaakt door het endotracheaal uitzuigen van beademde pasgeborenen

Intrapulmonary pressures during endotracheal suctioning of neonates were investigated with a lung model. Pronounced intrapulmonary negative pressures may cause lung injury due to partial lung collapse. An open (UNO) and a closed suction system were investigated. Higher and hazardous negative intra-tracneal pressures are achieved with the open suction system compared to the closed system. The length of the suction tube can be reduced considerably. Since the suction tube may maximally be inserted up to the end of the endotracheal tube a calibration scale on the sucnon tube is desirable. Recommendations of the manufacturer to use specific suction tubes with endotracheal tubes often proved to be incorrect. An advisory protocol for the suction procedure in neonates is included.