Evidence map›Paper›PMID 40604597›Full record

ArticleBMC pregnancy and childbirth2025

Elective single blastocyst transfer can achieve acceptable clinical pregnancy and live birth rates compared with elective double cleavage-stage embryo transfer in fresh cycles.

Linjun Chen, Yue Ji, Lihua Zhu, Fei Lin, Junshun Fang, Jie Wang, Shanshan Wang

Abstract readComparative Study
In one paragraph

Article in BMC pregnancy and childbirth, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from 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.

2 · The registry

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3 · Its place in the literature

Who cites it

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No citing paper in PubMed yet.

4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Linjun Chen *Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Zhongshan Road 321#, Nanjing, 210008, People's Republic of China.
Yue Ji *Center for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Zhongshan Road 321#, Nanjing, 210008, People's Republic of China.
Lihua ZhuCenter for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Zhongshan Road 321#, Nanjing, 210008, People's Republic of China.
Fei LinCenter for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Zhongshan Road 321#, Nanjing, 210008, People's Republic of China.
Junshun FangCenter for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Zhongshan Road 321#, Nanjing, 210008, People's Republic of China.
Jie WangCenter for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Zhongshan Road 321#, Nanjing, 210008, People's Republic of China. jessiewangjie@163.com.
Shanshan WangCenter for Reproductive Medicine and Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Zhongshan Road 321#, Nanjing, 210008, People's Republic of China. wss_19860820@sina.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo evaluate the effect of elective single blastocyst transfer (eSBT) and elective double cleavage-stage embryo transfer (eDET) on clinical pregnancy and live birth rates in fresh cycles.

methodsThis retrospective study analyzed a total of 2941 fresh transfer cycles, including 1548 eSBT cycles and 1393 eDET cycles. Clinical pregnancy, twin pregnancy and live birth rates of the two groups were compared.

resultsOverall, the rates of clinical pregnancy and live birth in the eDET group were significantly higher than those in the eSBT group (75.1% vs. 71.3%, P = 0.019; 66.6% vs. 63.0%, P = 0.039). It was shown that eDET lifted the rates of clinical pregnancy and live birth for patients aged less than 35 years (aOR 1.783, 95% CI 1.451-2.191; aOR 1.508, 95% CI 1.262-1.803) but not for patients age 35 years and over (aOR 0.874, 95% CI 0.538-1.421; aOR 1.036, 95% CI 0.638-1.682). The twin pregnancy rate in the eSBT group was significantly lower than that in the eDET group at all ages (aOR 32.116, 95% CI 21.758-47.404; aOR 14.325, 95% CI 5.449-37.657).

conclusionCompared with eDET, eSBT achieves clinically acceptable pregnancy and live birth rates while drastically reducing the risk of twin pregnancy in fresh cycles. It is generally recommended that infertile couples undergo eSBT during fresh cycles when possible, especially for females aged 35 years and over.

Indexed as

Embryo TransferLive BirthPregnancy RateSingle Embryo TransferAdultFemaleFertilization in VitroHumansPregnancyPregnancy, TwinRetrospective StudiesClinical pregnancyElective double cleavage-stage embryo transferElective single blastocyst transferLive birthTwin pregnancy

Identifiers

PMID40604597
PMCPMC12220528

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.