[Factors associated with atelectasis following extubation in very low weight premature newborns].

Background: Atelectasis is a decrease of lung volume caused by airway obstruction or pressure on the external part of the lung. It is common after surgery and extubation. The purpose of this investigation was to determine factors related with alectasis following extubation in preterm neonates with a weight under 1250 g who were referred to a neonatal intensive care unit.