ArticleJournal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine2025
Are the Risk Factors for Developing Type 1 and Type 2 Cesarean Scar Pregnancy Different?
Article in Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Reduced peripheral natural killer cell counts may be a predictive marker for cesarean scar pregnancy.BMC immunology · 2026Article
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Authors and funding
5 authors.
Funding
Abstract
objectivesCesarean scar pregnancy (CSP) is a life-threatening complication of pregnancy. Early termination of pregnancy is recommended because of the potential risks of uterine rupture if the pregnancy continues. CSP is clinically divided into type 1 and type 2, based on the site of embryo implantation and grow direction of the gestational sac. The clinical risk and treatment options may vary between these subtypes. Identifying the differences and potential factors impacting the development of each type could contribute to improved clinical management.
methodsThis retrospective study included 143 women with type 1 CSP and 200 women with type 2 CSP women, diagnosed between January 2020 and July 2023. The primary objective was to analyze the differences in clinical characteristics between the 2 CSP subtypes.
resultsBody mass index, the number of previous CSPs, elective abortions, gravidity, and parity were not significantly different between the 2 subtypes. Similarly, the interval between the last cesarean section and the current CSP was not associated with developing the 2 subtypes. However, women with more than 3 prior cesarean sections had an increased risk of developing type 1 CSP. In contrast, vaginal bleeding before diagnosis was more frequently associated with type 2 CSP.
conclusionsOur study with a large sample size found that despite type 2 CSP involving deeper myometrial invasion, the 2 subtypes share many clinical characteristics. Moreover, the clinical risk factors for distinguishing between type 1 and type 2 CSP are limited. Future research to identify predictors for CSP classification is required.
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