Relationship between mid-trimester ultrasound fetal liver length measurements and gestational diabetes mellitus
Arsić, Biljana B.
Isenović, Esma R.
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BackgroundThe aim of the present study was to investigate the relationship between mid-trimester ultrasound fetal liver length (FLL) and gestational diabetes mellitus (GDM) in a high-risk population. MethodsA prospective study was performed in 331 women with singleton pregnancies who were at high risk of GDM and were undergoing a mid-trimester ultrasound examination. The ultrasound scan at 23 weeks gestation was followed by a 100-g oral glucose tolerance test (OGTT) at 24 weeks gestation. Correlations between FLL and OGTT results at different time points were tested. Receiver operating characteristic (ROC) analysis of FLL as a potential prognostic factor for GDM was also performed. ResultsIn GDM patients, there was a significant positive correlation (P LT 0.01) between FLL and OGTT glycemia immediately before and 60, 120, and 180min after glucose intake. Mean FLL in GDM was significantly higher than in healthy subjects (41.04 vs 31.09mm, respectively; P LT 0.001). When tested as a pote...ntial prognostic factor for GDM, fetal liver measurements showed excellent diagnostic performance. The ROC analysis established a cut-off value of FLL of 39mm for the prediction GDM, with sensitivity of 71.76%, specificity 97.56%, positive predictive value 91.0%, and negative predictive value 90.9%. The usefulness of FLL measurements was supported by a high area under the ROC curve (90.5%). ConclusionIn conclusion, there is a strong correlation between FLL and OGTT results, with FLL possibly serving as a valid marker for the prediction of GDM in high-risk populations.
Keywords:correlation / predictive value / sensitivity / specificity / ultrasonography
Source:Journal of Diabetes, 2015, 7, 4, 497-505
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