Size and Shape of yolk sac as a predictor of pregnancy outcome

Document Type : Original Article

Authors

1 Obstetrics and Gynecology department, Faculty of Medicine, 6 October University, Egypt

2 Obstetrics and Gynecology department, Faculty of Medicine, Beni-Suef University, Egypt

Abstract

Background: it is estimated that approximately 30% to 40% of implanted pregnancies resulted in spontaneous abortion during the first trimester, most of which occur in very early stage. Significant number of losses predominantly occurs very early in gestation, but once the embryonic heart activity appears the rate of spontaneous abortion gradually decreases to 2-5% . Methods: the present study was conducted  at the Department of Obstetrics and Gynecology,6october Hospital during the period between February 2020 and august 2020 .46 cases at 5 weeks of pregnancy were subjected to transvaginal ultrasound  and yolk sac size and  shape were determined .  Records of pregnant women were registered at 6, 9, 12 weeks of pregnancy. Aim Of The Work: to evaluate the value of yolk sac in prediction of pregnancy outcome . Results: Abnormal Shape of yolk sac was found in 11 cases, the mean YSD at 6 weeks in aborted cases was 3.5±1.8 and cases who continued pregnancy was 2.2 ±0.4 and this difference is statistically significant and cut off point at 6 weeks was 2.8 while there was no significant difference between  YSD in  aborted cases and in those who continued pregnancy at 9,12 weeks respectively.  Conclusion: large size of yolk sac at 6 weeks of pregnancy and abnormal shape of yolk sac are predictor of poor pregnancy outcome.

Keywords

Main Subjects

References

  1. Sheikh S, Anjana B(2020); A study to assess predictive value of yolk sac diameter by transvaginal sonography with the pregnancy outcome. Int J Reprod Contracept Obstet Gynecol. Mar;9(3):997-1002
  2. Papaioannou GI, Syngelaki A, Poon LC et al. (2010); Normal ranges of embryonic length, embryonic heart rate, gestational sac diameter and yolk sac diameter at 6–10 weeks. Fetal Diagn Ther,28(4):207–19.
  3. Suguna B, Sukanya K(2018);Yolk sac size & shape as predictors of first trimester pregnancy outcome: A prospective observational study. J Gynecol Obstet Hum Reprod 48:159–164 .
  4. Donovan MF, Bordoni B,(2020); Embryology, Yolk Sac. [Updated 2020 Mar 29]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2Jan-.
  5. Ander SE, Diamond MS, Coyne CB,( 2019); Immune responses at the maternal-fetal interface. Sci Immunol.;4 (31): eaat6114.
  6. Rajendiran S, Thammineni L, Subrahmanian R,et al(2019); Diagnostic significance of total creatine kinase and its isoform in tubal ectopic pregnancy. The journal of obstetrics and gynaecology research.39.
  7. Srivastava G, Nagwani N, Pasricha N et al. (2016); SIZE OF YOLK SAC BY ULTRASONOGRAPHY AND ITS CORRELATION WITH PREGNANCY OUTCOME. Int J Anat Res, Vol 4(1):2052-57
  8. Abd Ellatif EM, Ahmad EK, Halawa MAA, (2018); Yolk Sac Size and Shape, Gestational Sac Diameter and Embryonic Heart Rate as Prognostic Factors for First Trimesteric Outcome. The Egyptian Journal of Hospital Medicine .October; Vol. 73 (9), Page 7418-7428

Files

Share

How to cite

Statistics