The Value of Early Pregnancy Ultrasound Parameters in Prediction of First-Trimester Outcome
Keywords:Early pregnancy loss, crown rump length, yolk sac, gestational sac diameters, fetal heart rate.
Background: In early pregnancy, it is essential to emphasize viability, and gestational age precisely.
Researchers have tried to discover some useful sonographic indicators in early pregnancy so as to expect the
outcome of the ongoing pregnancy. The aim of this study is to assess first-trimester ultrasound measurements
for the prediction of early pregnancy loss.
Subjects and Method: A prospective observational cohort study done in Tikrit city in outpatient clinic of
obstetrics and gynecology department in Salah Al-Deen General Hospital from
1st February-31st August 2020. A random sample of 78 pregnant women selected, 8 were lost to follow up. The
data collection done through a designed questionnaire, physical examination and transvaginal sonography
assessment. Sonography assessment of the crown rump length (CRL), yolk sac (YS) and gestational sac
(GS) diameters, & fetal heart rate (FHR) are recording.
Results: Seventy pregnant women examined by using transvaginal ultrasonography at 6th,9th and 12th week
of gestation. The readings at 6th week of gestation for the (GSD, YSD, CRL, and FHR) were (14.5±1.3),
(3.2±1.8), (3.1±0.8), & (105±10.6) respectively, lower among those with first trimester loss than those
continue pregnancy (26.1±5.2), (3.9±0.3), (5.1±0.5), and (119±3). The readings at 12th week of gestation
for the (GSD, YSD, CRL, and FHR) were as follows; [(25.1±3.5), (3.6±0.3), (13± 2.1). & (165± 1)] were
lower among with first trimester loss group than those continue pregnancy [(59.2±4.1), (4.5±0.7), (50.7±5.7)
Conclusions: The current study found that lower GSD, YSD, CRL, and FHR may indicate early pregnancy
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