Prevention Trial of Nosocomial Infections in Neutropenic Prematures With G-CSF

The G-CSF (filigrastin) will be administered by intravenous way with the amount of 10 µg/kg/day during 3 days . The infusion will last from 20 to 40 minutes according to weight of the child and the product will be diluted in dextrose 5%.

The placebo (dextrose 5% ) will be injected by intravenous way with the amount of 0.66 ml/kg during 3 days consecutive. The infusion will last from 20 to 40 minutes.