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| The correlation between ultrasonic uterine artery blood flow index and early threatened abortion |
| The First Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300193 |
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Abstract To investigate the correlation between ultrasonic uterine artery blood flow index and early threatened abortion. Method: The clinical data of 128 pregnant women with threatened abortion from June 6, 2016 to June 6, 2018 were retrospectively analyzed. According to different outcomes of threatened abortion, these women were divided into group A (women with abortion less than 16 gestational weeks) and group B (women with pregnancy equal to or more than 16 gestational weeks), and the normal pregnant women in group C during the same period were selected as the healthy control group. The values of uterine artery blood flow parameters by transvaginal color Doppler ultrasound measurement, such as peak systolic blood flow velocity/end-diastolic velocity (S/D), pulse index (PI), and resistance index (RI) of women during 8 and 10-12 gestational weeks were compared among the three groups. Multivariable Logistic regression model was used to analyze the uterine arteries blood flow index correlation with early pregnancy threatened abortion. Results: During 8 gestational weeks, the values of S/D, PI and RI of women in group A were significant higher than those of women in group B and C (P＜0.05). During 10-12 gestational weeks, there was no statistical significant difference in the value of PI among the three groups (P＞0.05), but the values of S/D and RI values of women in group A were significant higher than those of women in group B and C (P＜0.05). Multiple Logistic regression model analysis showed that the values of S/D and RI of women during 8 and 10-12 gestational weeks were independent risk factors affecting adverse outcomes of threatened abortion during the first trimester of pregnancy (P＜0.05), but PI value had no correlation with the threatened abortion during the first trimester of pregnancy (P＞0.05). Conclusion: The uterine artery blood flow index by ultrasound is closely related to the outcomes of early threatened abortion, and the increasing of the values of S/D and RI of pregnant women during 8 and 1012 gestational weeks can improve risk of inevitable abortion, which can be used a predicting early threatened abortion.
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