[Perinatal risk factors for mortality in the high-risk newborn].

This study was to determine the risk factors for mortality in a cohort of neonates in a neonatal intensive care unit. Comparative study of the perinatal antecedents between lives and deaths, calculating risk factors for mortality by the chi square test, with Mantel and Haenzel corrected and bivariate analysis. We studied 425 neonates with, weight and age of gestation 1640 +/- 359 gr.

[Evaluation of a newborn in a critical state, son of a mother with preeclampsia/eclampsia (pregnancy toxemia)].

The objective was to determine clinical characteristics and evolution of the neonate in critical status, son of mother with preeclampsia/eclampsia, in a neonatal intensive care unit (NICU). And looking for differences between the son of mother with preeclampsia and the mother with eclampsia. Revision of 425 charts of discharged neonates of a NICU.

[Development of high risk infants following premature membrane rupture in a neonatal intensive care unit].

The development of 77 neonates, with maternal premature membranes rupture in a neonatal intensive care unit was reviewed. Clinical characteristics, evolution, complications and mortality, as well as the risk factors for mortality were reviewed. The incidence was 25.

[Esophageal perforation in premature newborn infants. Presentation of 8 cases].

We report eight newborn with esophageal perforation. They were preterm infants and received mechanical ventilation for respiratory problem. Six were associated with pneumothorax, three of they show aberrant way of an orogastric tube, and another three show milk fluid in the pleural tube installed for pneumothorax.

[Risk factors in neonatal necrotizing enterocolitis].

In this case controls prospective study, risk factors for necrotizing enterocolitis from a neonatal intensive care unit, were investigated. In 34 cases and 69 controls, were found; the fetal distress, Apgar score < or = 5 at one minute, < or = 6 at five minutes, gestational age < or = 34 weeks and birth weight < or = 1500 g, like risk factors for necrotizing enterocolitis. The investigation of a new risk factor, abdominal distention with plentiful intestinal gas documented in X ray at initial hours of life, by energetic reanimation at birth, showed that it is not a risk factor.