Evaluation of Fetal Lung Maturity by Quantitative Analysis (quantusFLM) in Women with Gestational Diabetes Mellitus.

The aim of the present study was to evaluate fetal lung maturity using the noninvasive method of quantitative ultrasound analysis of fetal lung texture (quantusFLM) in women with gestational diabetes mellitus (GDM). A total of 96 women at 36-38 weeks of gestation were enrolled. They were classified as follows: 33 GDM cases treated with diet, 30 GDM cases treated with diet plus insulin, and 33 normoglycemic women (control group). A quantitative analysis of lung texture was performed. There were significant differences in the lung maturity results among groups (p = 0.004). These differences were established between the insulin-treated group of patients and both the control (p = 0.006) and diet-only (p = 0.003) groups. While none of the women in the control group or in the diet group had a high risk of immaturity, 16.7% of those treated with insulin (5/30) did (p = 0.003). There was no statistically significant correlation between HbA1c and the result of the test. Quantitative ultrasound study of fetal lung texture suggests that a significant percentage of pregnant women with GDM treated with insulin had fetal lung immaturity in the late preterm to early term.

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