[Risk factors associated to complications of the mechanical ventilatory assistance in the premature newborn].

Objective: To determine risk factors associated with the presence of complications with mechanical ventilatory support (MVS) in the preterm infants (PI).

Methods: One hundred thirty medical records of PI that had been discharged by amelioration or death were reviewed retrospectively. They were divided in two groups: group A, PI that had presented complications during MVS (cases) and B, PI with MVS, but that had not presented complications due to the procedure (controls).

Comparison of available oxygen before and after red blood cell transfusion in critically-ill premature newborn infants of 28-36 weeks gestational age, to asses its possible usefulness in clinical practice.

Background: Wardrop's formula to estimate available oxygen has been used to assess non-critically ill pre-term newborn infants (PTNIs) of 28-32 weeks gestational age who may need red blood cell transfusion ( RBCT ). The use of this formula has not been analyzed in critically-ill PTNIs. The objective of this study was to compare available oxygen levels before and after RBCTs in critically-ill PTNIs of 28-36 weeks gestational age, and to assess is potential usefulness.