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    Evaluation of placenta and fetal lung using shear wave elastography in gestational diabetes mellitus: An innovative approach
    (Georg Thieme Verlag Kg, 2024) Bayraktar, Burak; Golbasi, Hakan; Omeroglu, Ibrahim; Golbasi, Ceren; Can, Sevim Tuncer; Ince, Onur; Bayraktar, Miyase Gizem
    Purpose This study aims to investigate placental and fetal lung stiffness in pregnant women with and without gestational diabetes, considering the well-established delay in fetal lung maturation associated with gestational diabetes. Materials and Methods This prospective cohort study was conducted at a tertiary center and included pregnant women who underwent a 75-gram oral glucose tolerance test between 24-28 weeks of gestation. Elastography measurements were performed using point shear wave elastography (pSWE). Results The study included 60 pregnant women diagnosed with gestational diabetes and 60 pregnant women in the control group. The SWE velocity of the peripheral placenta, central placenta, and lung was higher in the gestational diabetes group compared to the control group. Furthermore, the SWE velocity of the peripheral placenta, central placenta, and lung was higher in newborns with neonatal respiratory morbidity. Based on the ROC analysis of patients with gestational diabetes, the AUC for lung SWE velocity was 0.88 (cut-off 12.4 kPa, 95% CI: 0.77-0.99, p<0.001) with a sensitivity of 71.4% and specificity of 95.6% for predicting neonatal respiratory morbidity. Conclusion Fetal placental and lung stiffness increase in fetuses of pregnant women with diabetes. Moreover, higher fetal lung stiffness during the fetal period is associated with increased neonatal respiratory morbidity.
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    Öğe
    Splenic Artery Doppler Waveforms in Gestational Diabetes and Association with Fetal Pancreas: A Prospective Case-Control Study
    (Karger, 2024) Golbasi, Hakan; Bayraktar, Burak; Golbasi, Ceren; Omeroglu, Ibrahim; Cakir, Zubeyde Emiralioglu; Can, Sevim Tuncer; Pehlivanoglu, Osman Caglar
    Introduction: This study evaluated fetal pancreas size and echogenicity, and splenic artery (SA) waveforms in pregnant women with gestational diabetes mellitus (GDM). Methods: This prospective case-control study was performed from October 2022 to November 2023 and included 124 pregnant women (62 with GDM and 62 controls). Pancreatic circumference, pancreatic echogenicity, umbilical artery Doppler measurements (systolic/diastolic ratio [S/D] and pulsatility index [PI]), SA Doppler measurements (S/D, PI, peak systolic velocity [PSV], time-averaged maximum velocity, and pressure gradient [PG] mean and maximum) values were compared between the GDM and control groups. Results: The mean pancreatic circumference was higher and grade 2/3 echogenicity was more common in the GDM group, while grade 1 echogenicity was more common in the control group (p < 0.001 and p < 0.001, respectively). SA S/D and PI measurements were significantly higher in the GDM group than in the control group (p < 0.001 and p = 0.001, respectively). Moreover, PG(max) was significantly higher in the GDM group than in the control group (p = 0.038). Pancreatic circumference was positively correlated with SA PSV (p = 0.004). Additionally, pancreatic circumference was positively correlated with PG(mean) and PG(max) (p = 0.010 and p = 0.016, respectively). The increase in pancreas echogenicity was positively correlated with SA S/D and PI measurements (p = 0.007 and p = 0.002, respectively). PG(max) was also positively correlated with increased pancreas echogenicity (p = 0.023). Conclusion: This study showed that fetal pancreas size and echogenicity were significantly higher in pregnant women with GDM than in controls. SA Doppler waveforms were consistent with an increase in vascular resistance associated with elevations of both S/D and PI in the GDM group.