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[The influence of perinatal asphyxia on the occurrence of respiratory distress syndrome in preterm labor].

During the period 1985-1992, the influence of perinatal asphyxia on the frequency of RDS was investigated in preterm neonates. Two thousand one hundred and sixty-eight premature infants born alive without congenital malformations weighing from 900 g to 2500 g were in the investigated group. The frequency of the occurrence of RDS and its most severe form--hyaline membrane disease (HMD)--was evaluated depending on state at birth in the first and fifth minute of life. The clinical diagnosis of HMD was verified during the postmortem examination. The state at birth was evaluated using Apgar score. In the statistical analysis, the F-Snedecor variance test was used. During this study, the influence of perinatal asphyxia on the occurrence of RDS, and particularly its most severe form--HMD, was evaluated.