ArticleReproductive medicine and biology
Risk factors for non-previa placenta accreta spectrum in pregnancies conceived through frozen embryo transfer during a hormone replacement cycle in Japan.
Article in Reproductive medicine and biology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Factors Affecting Pregnancy Outcomes in Patients Undergoing in vitro Fertilization/Intracytoplasmic Sperm Injection-Embryo Transfer (IVF/ICSI-ET) After Hysteroscopic Adhesiolysis: A Clinical Analysis.International journal of women's health · 2026Article
- Endometrial thickness is not a risk factor for hypertensive disorders of pregnancy after IVF treatment in women with male-factor infertility.Frontiers in endocrinology · 2026Article
- Hormone Replacement Cycle Frozen-Thawed Embryo Transfer Is Associated With Elevated Perinatal Risk Compared With Natural Ovulatory Cycle Frozen-Thawed and Fresh Embryo Transfers: Retrospective Analysis of 7,593 Live Birth Cycles.Reproductive medicine and biologyArticle
- Risk factors for non-previa placenta accreta spectrum in pregnancies conceived through frozen embryo transfer during a hormone replacement cycle in Japan.Reproductive medicine and biologyArticle
- Risk of Placenta Accreta Spectrum With Early Pregnancy Subchorionic Hematoma Location and Size in Hormone Replacement Cycles.Reproductive medicine and biologyArticle
- Incidence of Retained Products of Conception Following Hormone Replacement Versus Natural Cycles in Frozen Embryo Transfer.Reproductive medicine and biologyArticle
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose: Non-previa placenta accreta spectrum (PAS) is associated with assisted reproductive technology (ART), particularly frozen embryo transfer during hormone replacement therapy (HRC-FET). We especially aimed to evaluate the prevalence and risk factors for non-previa PAS in HRC-FET pregnancies. Methods: Overall, 279 women who conceived through ART at three ART facilities and delivered at a single center were included in this retrospective study. Data regarding endometrial thickness at embryo transfer, previous histories, and type of embryo transfer-HRC-FET, frozen embryo transfer during a natural ovulatory cycle (NC-FET), and fresh embryo transfer (Fresh-ET)-were collected. Univariable logistic regression analyses were conducted. Results: The prevalence of non-previa PAS was 27/192 (14.1%) in the HRC-FET group and 0 (0.0%) in both the NC-FET and Fresh-ET groups. Significantly high odds ratio [95% confidence interval] of non-previa PAS was associated with a history of artificial abortion (6.45 [1.98-21.02]), endometrial thickness <8.0 mm (6.11 [1.06-35.12]), resolved low-lying placenta (5.73 [2.13-15.41]), multiparity (2.90 [1.26-6.69]), polycystic ovarian syndrome (2.62 [1.02-6.71]), and subchorionic hematoma (2.49 [1.03-6.04]). Conclusions: A history of artificial abortion, endometrial thickness <8.0 mm, and resolved low-lying placenta may help in antenatal detection of a high-risk population of non-previa PAS in HRC-FET pregnancies.
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