ArticleJournal of reproduction & infertility
Cesarean Section and Its Impact on Uterine Artery Resistance and the Risk of Pre-eclampsia in Subsequent Pregnancies.
Article in Journal of reproduction & infertility. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Pooled it
- Effect of Previous Cesarean Section on Ultrasound Doppler Studies of Placental Circulation and Pregnancy Outcome.Journal of clinical medicine · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: The purpose of the current study was to compare the color Doppler findings of uterine arteries and perinatal outcomes in pregnant women with and without previous cesarean section (C/S). Methods: This cohort study enrolled 308 pregnant women aged 20-35 without underlying diseases, with at least one previous pregnancy and childbirth. The participants were divided into two groups: 154 women without C/S and 154 women with C/S. Baseline data were collected, followed by uterine artery Doppler scans. Then, the perinatal outcomes, including pre-eclampsia, intrauterine growth restriction (IUGR), premature delivery, and birth weight were evaluated. Results: The average age of patients in the C/S group was 30.46±3.81, which was significantly higher than the non-C/S group (28.86±4.64). It was found that uterine artery resistance was higher in women with C/S history (1.11±0.44, p<0.001) compared to those without (1.00±0.37, p<0.001). Pre-eclampsia incidence was also higher in C/S group (16.1%, p=0.042) compared to non-C/S group (9.1%, p=0.042). The incidence of preterm birth in the C/S group (p=0.209), the incidence of IUGR (p=0.791), and the average birth weight (p=0.291) in the two groups did not differ significantly. The average gestational age in the C/S group was 37.54±1.4, and in the non-C/S group was 38.01±1.99 weeks. The results were not affected by potential confounders such as age, the time interval between pregnancies, and also body mass index. Conclusion: Previous cesarean section can significantly increase the uterine artery resistance in subsequent pregnancy.
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Registered trials
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