Preterm Newborn's Behavioral Responses During Feeding With Gastric Tube

Preterm infants need aims of a tube named oral or naso gastric to grow until they acquire autonomy in suction-swallowing. In fact, several modes feed by a gastric tube exist : using an electric syringe pump (continuous administration), or manual and individualization administration. In this second case, milk can be delivered by gravity, depending on the height the syringe is placed above the infant, or by manually pushing on the syringe. Milk can be administrated by nurses or by the parents after a learning period. In this observational study, we would like to compare the preterm infants' behavioral during these different naso or oro gastric feeding modes by observing well-being signs and withdrawal signs (Dsilna grid) on video settings.