Optimizing Propofol Dosing for (Preterm) Newborn Infants That Need Endotracheal Intubation

Propofol, an anesthetic agent, is used to sedate the patients before endotracheal intubation. The propofol starting dose in all age groups will be 1.0 mg propofol/kg. After 5 patients per age group the next dose will be determined. Dose will be increased or decreased with 0.5 mg/kg for the next 5 patients. The study will be continued untill an adequate dose, that results in adequate sedation, good intubation conditions without hypotension, is determined. That dose will be valideted in another 5 patients per age group.