Key result
Maternal diabetes was associated with significantly increased fetal interventricular septal thickness (0.7163 cm vs 0.4989 cm) and impaired myocardial performance index compared to controls.
Why the study?
Diabetes mellitus during pregnancy predisposes to fetal complications including hypertrophic cardiomyopathy, and fetal cardiac function analysis may provide critical information on hemodynamic status and cardiac adaptation.
Does maternal diabetes affect fetal cardiac morphology and function as assessed by fetal echocardiography?
Observational (n=100)
No
Does maternal diabetes affect fetal cardiac morphology and function as assessed by fetal echocardiography?
Absolute Event Rate: 0.7163% vs 0.4989%
p-value: p=<0.05
Fetal echocardiography reveals significant morphological and functional cardiac changes, including increased myocardial thickness and impaired performance index, in fetuses of diabetic mothers compared to controls.
Fetal monitoring may merit consideration in diabetic pregnancies; leaves open prognostic value for offspring cardiac outcomes.
Background Diabetes mellitus (DM) is the commonest medical disorder faced during pregnancy and it includes type I, type II, and gestational diabetes. It may predispose to various complications including fetus malformation, macrosomia, spontaneous abortion, stillbirth, neonatal death, and intrauterine growth retardation. Hypertrophic cardiomyopathy (HCM) is one of the common anomalies depicted with diabetes. Fetal cardiac function analysis might provide important information on the hemodynamic status and cardiac adaptation to different perinatal complications. Results The mean septal thickness in the diabetic group was 0.7163 ± 0.1746 cm and 0.4989 ± 0.08068 cm in the control group. The mean myocardial thickness of the right ventricular free wall in the diabetic group was 0.6532 ± 0.13792 cm and 0.4874 ± 0.07482 cm in the control group. The mean myocardial thickness of the left ventricular free wall in the diabetic group was 0.6437 ± 0.13421 cm and 0.4737 ± 0.07573 cm in the control group. The mean value of myocardial performance index (Tie Index) in the diabetic group was 0.6232 ± 0.15606 and 0.4626 ± 0.04357 in the control group. Conclusion From our study, we can conclude that prenatal complete echocardiographic study should be mandatory in fetuses of diabetic mothers due to high risk of congenital heart defects and onset of hypertrophic cardiomyopathy with fetal cardiac function impairment in the third trimester. Early diagnosis of congenital heart defects as well as evidence of hypertrophic cardiomyopathy and fetal cardiac function impairment that occurs in fetuses of maternal diabetes will definitely guide prompt postnatal therapy and care for those neonates.
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Raafat et al. (2020) conducted an observational in Maternal diabetes (pre-gestational and gestational) (n=100). Maternal diabetes vs. Normal non-diabetic pregnancy was evaluated on Mean interventricular septal thickness (cm) (p=<0.05). Maternal diabetes was associated with significantly increased fetal interventricular septal thickness (0.7163 cm vs 0.4989 cm) and impaired myocardial performance index compared to controls.
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