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| Analysis of blood flow characteristics by color doppler ultrasound of uterine artery in pregnant women with primary or secondary preeclampsia |
| Xiamen Maternal and Child Health Care Hospital, Fujian Province,361000 |
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Abstract To analyze blood flow characteristics of uterine artery of pregnant women with primary or secondary preeclampsia. Methods：The pregnant women with pre-eclampsia were selected in study group, and were divided in group A (women with primary pre-eclampsia) and group B (women with secondary preeclampsia). The normal pregnant women were selected in control group. The Color doppler ultrasound was used to examine uterine artery blood flow, and the differences of uterine artery blood flow index, such as S/D, RI, PI value and the incidence of V-shaped incision of the women in the two groups were measured. The relationship between uterine artery blood flow and the severity of preeclampsia was analyzed. Results：The values of S/D, RI, and PI, and the incidence of V-shaped cutting of uterine artery of women in study group were significant higher than those of women in the control group (P＜0.05). The values of S/D and RI of women in group B were significant higher than those of women in group A (P＜0.05), there were no significant difference in the values of PI and V-shaped cutting of uterine artery between group A and B (P>0.05). In group A, the values of S/D, RI, and PI of women with severe preeclampsia were significant higher than those of women with mild preeclampsia. In group B, the values of S/D, RI, and PI, and the incidence of V-shaped cutting of uterine artery of women with severe preeclampsia were significant higher than those of women with mild preeclampsia (all P＜0.05). The values of S/D and RI, and the incidence of V-shaped cutting of uterine artery of women with mild preeclampsia in group A had no significant different from those of women with mild preeclampsia in group B (P>0.05). The values of S/D and RI of women with severe preeclampsia in group B were significant higher than those of women with severe preeclampsia in group A (P＜0.05). The PI value and the incidence of V-shaped cutting of uterine artery of women with severe preeclampsia in group A had no significant different from those of women with severe preeclampsia in group B (P>0.05). The independent risk factor of the primary severe preeclampsia was the RI value of uterine artery, and the independent risk factors of the secondary severe preeclampsia were the S/D and RI values of uterine artery (P＜0.05), and the PI value of uterine artery was no correlation with the onset and recurrence of women with primary or secondary severe preeclampsia (P>0.05). Conclusion：The uterine artery blood flow resistance of pregnant women with primary or secondary preeclampsia is high, and associate with severity of preeclampsia. The pregnant women with severe secondary preeclampsia have the most obvious increasing of uterine artery blood flow resistance.
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