International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Call for Papers | Open Access | Double Blind Peer Reviewed

ISSN: 2319-7064

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Research Paper | Gynaecology | India | Volume 8 Issue 5, May 2019

Prospective Study in Predicting Pregnancy Outcome Using Yolk Sac Parameters in First Trimester

Priyadarshini.K | Selvi.R

Abstract: Objective: Yolk sac is the first ultrasonographically visible extra embryonic structure within the gestational sac. In Early pregnancy, threatened and spontaneous abortions is the most common complication. As per some studies, enlarged or small yolk sac predicts poor pregnancy outcome. Whereas other studies, they conclude normal outcome. Thus, the purpose of this study is to study and evaluate the inner diameter and the shape of yolk sac in first trimester using transabdminal ultrasonography and to correlate it with pregnancy outcome. Materials And Methods: A prospective study conducted in Institute of Obstetrics and Gynecology, Egmore, Chennai. Total of hundred pregnant antenatal mothers were chosen between the study period November 2017 to Octoberr 2018. Once selected, they were divided into two groups of 8 to 10 weeks and 10 to 12 weeks. They underwent transabdominal ultrasound to see the size and characteristics of yolk sac, results were recorded and patients are followed up till 20 weeks to see for pregnancy outcome like abortion or normal course. Results: In patients with normal outcome the mean diameter of yolk sac has been 4.35 mm. In patients with abortion as outcome, the mean yolk sac diameter has been ranging from 5.5 mm. Any deviation of more than 2 SD met with increased rates of spontaneous abortion. In this current study, about 88 % of cases had abortion which were found to have abnormal size of the yolk sac Conclusion: Yolk sac size and characteristics are important determinants of outcome of pregnancy. This should be monitored in early pregnancy to assess the outcome of pregnancy

Keywords: Yolk sac size, First trimester ultrasound, Pregnancy outcome, Abortion

Edition: Volume 8 Issue 5, May 2019,

Pages: 1191 - 1194

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How to Cite this Article?

Priyadarshini.K, Selvi.R, "Prospective Study in Predicting Pregnancy Outcome Using Yolk Sac Parameters in First Trimester", International Journal of Science and Research (IJSR), Volume 8 Issue 5, May 2019, pp. 1191-1194,

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