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Corresponding Author

Ouda, Sameh

Document Type

Original Article

Abstract

Abstract Background: The advent of sonography has changed the practice of obstetrics by providing a window through which the anatomic structure of the fetus can be evaluated. Several studies have demonstrated an association between second‐trimester uterine artery Doppler Pulsatility index (PI) and Resistance indices (RI) and the subsequent development of intrauterine growth restriction. However, there is evidence to demonstrate that trophoblast invasion is maximal in the first trimester, when it is also possible to assess uterine artery blood flow by Doppler. Objective: To determine the role of the uterine arteries Doppler during the early second trimester in prediction of the intrauterine growth restriction. Patients and methods: This was a cross sectional observational study, was conducted on 100 pregnant women attending the Obstetric and Gynecology Outpatient clinic at Al-Azhar University Hospitals. The Doppler study of the uterine artery flow velocimetry waveforms using continuous wave type was done. The results of the Pulsatility index (PI) and the Resistance index (RI) were registered and standard deviations were estimated. Results: Uterine PI achieved significance for predicting IUGR at cutoff point ≥1.63 with sensitivity of 83% and specificity of 91.6% with PPV 54% and NPV 88%. While, uterine RI achieved significance for predicting IUGR at cutoff point ≥0.67 with sensitivity of 71.8% and specificity of 87.2% with PPV 47% and NPV 82%. Conclusion: Abnormal UtA Doppler ultrasonography (elevated PI) in second trimester can predict IUGR among women with high risk factors which can be enhanced by biochemical tests.

Keywords

Color Doppler; uterine arteries; IUGR, Early second trimester

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