Nasef, A., Elmashd, A., Abdel Hai, M., Edris, Y., Abd Elrazek, H. (2024). Role of mid-trimesteric uterine artery Doppler velocimetry in prediction of placenta previa resolution at the end of third trimester of pregnancy. Benha Medical Journal, 41(4), 10-22. doi: 10.21608/bmfj.2023.201956.1787
Ahmed Nasef; Ashraf ismail Mohamed Elmashd; Moharram Abdel Hassieb Abdel Hai; Yehia Mohamed Samir Mohamed Ahmed Edris; Heba Elsayed Abd Elrazek. "Role of mid-trimesteric uterine artery Doppler velocimetry in prediction of placenta previa resolution at the end of third trimester of pregnancy". Benha Medical Journal, 41, 4, 2024, 10-22. doi: 10.21608/bmfj.2023.201956.1787
Nasef, A., Elmashd, A., Abdel Hai, M., Edris, Y., Abd Elrazek, H. (2024). 'Role of mid-trimesteric uterine artery Doppler velocimetry in prediction of placenta previa resolution at the end of third trimester of pregnancy', Benha Medical Journal, 41(4), pp. 10-22. doi: 10.21608/bmfj.2023.201956.1787
Nasef, A., Elmashd, A., Abdel Hai, M., Edris, Y., Abd Elrazek, H. Role of mid-trimesteric uterine artery Doppler velocimetry in prediction of placenta previa resolution at the end of third trimester of pregnancy. Benha Medical Journal, 2024; 41(4): 10-22. doi: 10.21608/bmfj.2023.201956.1787
Role of mid-trimesteric uterine artery Doppler velocimetry in prediction of placenta previa resolution at the end of third trimester of pregnancy
1Obstetrics & Gynecology department, faculty of medicine, Benha University, Quesna city, Monofiya governorate
2Obstetrics & Gynecology department, faculty of medicine, Benha University, Benha City, Qalubiya Governorate
3Obstetrics& Gynecology department, faculty of medicine, Benha University, Sherbin city, Dakahlia governorate
4Obstetrics & Gynecology department, faculty of medicine, Benha University, Benha city, Qalubiya governorate
Abstract
Abstract Background many placenta previa cases diagnosed at mid-trimester resolve later in pregnancy, hence comes the importance of searching for predictive factors for placenta previa resolution. Uterine artery velocimetry parameters were suggested to play this role. Aim to evaluate the predictive role of uterine artery Doppler velocimetry at mid-trimester of gestation for placenta previa resolution at end of pregnancy third trimester. Methods prospective cohort study was carried upon 200 pregnant women. Placenta-cervix os distance was measured both at 22–24 weeks and after 36 weeks of gestation. Uterine artery Doppler velocimetry parameters were measured at 22–24 weeks of gestation. Results Subjects were assigned to control group (n=139), resolved group (n=36), and placenta previa group (n=25) according to their diagnosis of placenta previa at mid-term and third trimester end. Differences in uterine artery Doppler velocimetry parameters (S/D ratio, PI, and RI) between different studied groups were used for analysis. Mean S/D ratio, PI, and RI of uterine arteries in placenta previa group were significantly lower than in both control and resolved groups. No differences were observed between control group and resolved group. Areas under the ROC curve were 0.895, 0.898, and 0.908 for the means of S/D ratio, PI, and RI, respectively (P value < 0.001). Conclusion uterine artery Doppler velocimetry parameters at mid-trimester are much lower in patients with persistent placenta previa than in control and resolved groups and have potential to predict placenta previa resolution.
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