Prediction of fetal lung maturity by amniotic fluid fluorescence polarization, L:S ratio, and phosphatidyl glycerol.
1981
The relation of amniotic fluid fluorescence polarization (FP) to fetal lung maturity was examined in 186 pregnancies terminating within 48 hours of the fluid collection. Among the 9 babies who developed hyaline membrane disease (HMD), 8 were associated with FP values of 0.340 or more, and 1 had an FP value of 0.329. In 95 of these patients, the lecithin:sphingomyelin (L:S) ratio and the presence or absence of phosphatidyl glycerol (PG) were also determined. All 9 infants with HMD had L:S ratios less than 2.00 and no PG detectable in the amniotic fluid. Using an FP value of 0.325 or less, an L:S ratio of 2.00 or more, and the presence of PG as criteria for lung maturity, FP, L:S ratio, and PG did not differ significantly in the number of false predictions of HMD. Each test detected some mature infants who would have been incorrectly classified by at least 1 of the other tests. The status of all infants born at 33 weeks' gestation or later who did not develop HMD would have been correctly predicted by FP, L:S ratio, or both. These 3 tests, therefore, are complementary and can be used in combination to reduce the number of false predictions of HMD.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
0
References
8
Citations
NaN
KQI