A B S T R A C T 38.0+4.3%; P < 0.01). Lecithin/ sphingomyelin ratios were similar in both groups and phosphatidylglycerol was not detected in either group. There was a direct correlation between the percentage of alveolar disaturated phosphatidylcholine and retention ofair on lung deflation. These findings suggest that in this model pulmonary instability was a result of diminished alveolar disaturated phosphatidylcholine, and this diminution did not result from fetal hyperinsulinemia.

No abstract