ArticleReproduction & fertility2024
The impact of transferred air bubble position on clinical pregnancy rate in FET cycles.
Article in Reproduction & fertility, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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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.
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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.
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Who cites it
2 citing papers in PubMed, 1 citations in OpenAlex.
- Article
- Analysis of factors influencing clinical pregnancy rates in frozen-thawed embryo transfer cycles.Frontiers in endocrinology · 2025Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
We aim to investigate the correlation of the position of the transferred air bubble with the clinical pregnancy rate (PR) in frozen-thawed embryo transfer(FET) cycles. A prospective clinical study was carried out at Reproductive medicine center of West China Second University Hospital between June 2020 and May 2021. 1159 women underwent FET were included in this study. Transabdominal ultrasonographic guidance was used during the transfer procedure. The distance from the air bubble to endometrial cavity fundus（DAF）was measured in the freeze-frame ultrasound immediately after ET. In group DAF ≤3mm, 3-15mm and ≥15mm, the clinical PR in women transferred with cleavage embryos were 33.3% (7/21), 55.0% (153/280), and 31.3% (5/16), respectively, the difference was statistically significant (P＜0.05). Among women transferred with blastocysts, the clinical PR was 63.0% (34/54), 68.5% (485/708) and 55.0% (44/80), respectively, the difference was statistically significant (P＜0.05). In multivariate logistic regression model for clinical PR, the clinical PR was associated with age, embryo quality, number of embryo transferred, and endometrial thickness. DAF was an independent risk factor influencing clinical PR in blastocysts FET cycles rather than in cleavage embryos FET cycles.In conclusion, our results suggested that DAF was associated with the clinical PR and DAF between 3mm and 15mm is the optimal position in blastocysts FET cycles.
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Registered trials
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