BENEFITS OF TRANSVAGINAL SONOGRAPHIC ASSESSMENT OF EARLY PREGNANCY

Year 2001, Volume: 14 Issue: 4, 223 - 226, 03.12.2016

Rıza Madazlı Süheyl Tunalı Mehmet İdil Feridun Aksu

Abstract

Objective: The aim of this study was to investigate the benefits of transvaginal sonographic assessment of early pregnancy.
Material and Methods: As a prospective observational study, 103 pregnant women were followed until delivery or completion of a failed pregnancy. Between 6 and 14 weeks of gestation 250 transvaginal ultrasonographic examinations were performed. During the examination, fetal viability and anatomy was evaluated, yolk sac diameter was measured and fetal biometry was established.
Results: Of the 103 pregnancies, 10 cases were diagnosed as missed abortion in which 40% had no complaint, 2 cases miscarried during follow up and one cystic hygroma case was terminated medically. The abortion rate after the determination of fetal cardiac activity was found to be 2.1 %. For the yolk sac diameter, two standard errors above or below the confidence limits, the sensitivity and specificity of predicting an abnormal outcome (abortion, anomaly, neonatal exitus) was found to be 75% and 95.5% respectively.
Conclusion: Sonographic assessment of early pregnancy is a very valuable tool for identifying fetal viability, early diagnosis of fetal anomalies and predicting pregnancy outcome.
Key Words: Transvaginal sonography, Early pregnancy, Yolk sac

References

• Timor-Tritsch IE, Earine D, Rosen MG. A close look at early embryonic development with high frequency transvaginal transducer. Am J Obstet Gynecol 1989; 159: 676 - 681.
• Rottem S, Bronshtein M, Thaler I, Brendes JM. First trimester transvaginal sonographic diagnosis of feta! anomalies. Lancet 1989; i: 444.445.
• flernadi L, Torocsik M. Screening for fetal anomalies in the 12 th week of pregnancy by transvaginal sonography in an unselected population. Prenat Diagn 1997; 17 : 753 - 759.
• Goldstein SR. Significance of cardiac activity on endovaginal ultrasound in very early
• embryos. Obstet Gynecol 1992; 80: 670 - 672.
• Stampone C, Hicotra M, Muttinelli C, Cosmi EV. Transvaginal sonography of the yolk sac in normal and abnormal pregnancy. J Clin Ultrasound 1996; 24: 3-9.
• Levi CS, Lyons EA, Zheng XII, Lindsay DJ, Holt 5/4. Endovaginal Ultrasonography: Demonstration of cardiac activity in embryos of less than 5 mm crown rump length. Radiol 1990; 176 : 71 - 74.
• Levi CS, Lyons EA, Lindsay DJ. Ultrasound in the first trimester of pregnancy. Radiol Clin Horth Am 1990; 28: 19-39.
• Goldstein SR. Embryonic death in early pregnancy: a new look at the first trimester. Obstet Gynecol 1994; 84: 294 - 297.
• Wilson RD, Kendrick V, Witman BR, McGillivary B. Spontaneous abortion and pregnancy outcome after normal first trimester ultrasound examination. Obstet Gynecol 1986; 67: 352 - 355.
• Moore KL. The placenta and fetal membranes.
• In: Moore KL, Persaud S, eds. The Developing Human: Clinically Oriented
• Embryology, 4th ed. Philadelphia: WB
• Saunders, 1988: 121 - 132.
• Lindsay DJ, Lovett IS, Lyons EA, et al. Yolk sac diameter and shape at endovaginal US: Predictors of pregnancy outcome in the first trimester. Radiology 1992; 183:115- 118.
• Ferrazzi E, Brambati B, Lanzani A, et al. The yolk sac in early pregnancy failure. Am J Obstet Gynecol 1988; 158: 137-142.
• Çepni İ, Beşe T, (Deal P, Budak E, idil M, Aksu MF. Significance of yolk sac measurements with vaginal sonography in the first trimester in the prediction of pregnancy outcome. Acta Obstet Gynecol Scand 1977; 76:962 - 972.