J Korean Med Sci.  1992 Mar;7(1):34-39. 10.3346/jkms.1992.7.1.34.

Predictable ultrasonographic findings of early abortion

• Jun SA
• Ahn MO
• Lee YD
• Cha KY

• KMID: 1421887
• DOI: http://doi.org/10.3346/jkms.1992.7.1.34

Abstract

Early fetal growth delay and early oligohydramnios have been suspected as signs of embryonal jeopardy. However, little information is available for the prediction of early abortion. Sonographic examination of 111 early pregnancies between the sixth and ninth gestational week with regular, 28 day menstrual cycles was performed to investigate predictable sonographic findings of early abortion. Sonographic measurements of the gestational sac (G-SAC), crown-rump length (CRL) and fetal heart rate (FHR) were performed using a linear array real time transducer with Doppler. All measurements of 17 early abortions were compared to those of 94 normal pregnancies to investigate the objective rules for the screening of early abortion. Most of the early aborted pregnancies were classified correctly by discriminant analysis with G-SAC and CRL (G-SAC = 0.5222 CRL + 14.6673 = 0.5 CRL + 15, sensitivity 76.5% specificity 96.8%). With the addition of FHR, 94.1% of early abortions could be predicted. In conclusion, sonographic findings of early intrauterine growth retardation, early oligohydromnios and bradycardia can be predictable signs for the poor prognosis of early pregnancies.

Keyword

Sonography; Early abortion; Early oligohydramnios Intrauterine growth retardation; Fetal bradycardia

MeSH Terms

Abortion, Spontaneous/*ultrasonography
Adult
Discriminant Analysis
Female
Fetal Growth Retardation/ultrasonography
Gestational Age
Humans
Predictive Value of Tests
Pregnancy
Prognosis
Sensitivity and Specificity
Time Factors
*Ultrasonography, Prenatal