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| Ultrasonographic characteristics of chorionic eminence and its correlation with early embryo damage and subsequent pregnancy outcomes of pregnant women |
| 1. Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi, Hubei Province, 445000；2. Minda Hospital Affiliated to Hubei University for Nationalities, Enshi, Hubei |
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Abstract To investigate the ultrasonographic characteristics of chorionic eminence of pregnant women, and to study its correlation with early embryo damage and subsequent pregnancy outcomes of these women. Methods: 97 pregnant women with chorionic eminence during the first trimester of pregnancy who underwent prenatal examination were selected in observation group, and another 110 pregnant women without chorionic eminence were randomly selected in control group from January 2015 to October 2019. The ultrasonographic characteristics of chorionic eminence (including number and size) of the women were observed, and its correlation with early embryo damage was analyzed. The pregnancy situation (including pregnancy complications, embryo damage, and pregnancy outcomes) of the women in the two groups were followed up. The correlation between the ultrasonographic characteristics of chorionic eminence of the women and their pregnancy outcomes was analyzed. Results: The incidences of abortion (24.7%), pregnancy cessation (13.4%), threatened abortion (43.3%), and inevitable abortion after threatened abortion (21.4%) of the women in the observation group were significantly higher than those (7.3%, 6.4%, 30.0%, and 3.0%) of the women in the control group (all P＞0.05). The incidence of abortion of the women with chorionic eminence diameter <1 cm, 1-2cm, and >2 cm were 11.5%, 19.2, and 50.0%, respectively, and the incidence of their threatened abortion were 0, 15.0%, and 54.6%, respectively, which all had increased gradually (P＜0.05). There was no significant difference in the incidence of embryo damage among the women with different chorionic eminence diameter. There was no significant difference in the incidence of embryo damage between the women with multiple and single chorionic eminence (P＞0.05). The incidences of abortion (50.0%) and inevitable abortion after threatened abortion (50.0%) of the women with multiple chorionic eminence were significantly higher than those (17.3% and 12.5%) of the women with single chorionic eminence (P＜0.05). Conclusion: Chorionic eminence sign of the pregnant women during the first trimester of pregnancy may cause their early embryo damage and abortion, and the pregnant women with multiple and larger chorionic eminence have higher risk of adverse pregnancy outcomes.
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