Evidence map›Paper›PMID 29124461›Full record

ArticleJournal of assisted reproduction and genetics2018

Improvement of pregnancy outcome by extending embryo culture in IVF-ET during clinical application.

Xiaopeng Zhao, Binbin Ma, Shaokang Mo, Lu Ma, Fei Chang, Liyuan Zhang, Fang Xu, Ling Wang

Abstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

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.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Xiaopeng ZhaoReproductive Medical Center, General Hospital of Lanzhou Military Region, Lanzhou, China.
Binbin MaSchool of Life Sciences of Biotechnology, Shanghai Jiao Tong University, Shanghai, China.
Shaokang MoReproductive Medical Center, General Hospital of Lanzhou Military Region, Lanzhou, China.
Lu MaKey Laboratory of Reproduction and Genetics, Ningxia Medical University, Yinchuan, China.
Fei ChangReproductive Medical Center, General Hospital of Lanzhou Military Region, Lanzhou, China.
Liyuan ZhangReproductive Medical Center, General Hospital of Lanzhou Military Region, Lanzhou, China.
Fang XuKey Laboratory of Reproduction and Genetics, Ningxia Medical University, Yinchuan, China. xufang@nxmu.edu.cn.
Ling WangReproductive Medical Center, General Hospital of Lanzhou Military Region, Lanzhou, China. szzxwangling@163.com.

Funding

Lanzhou Military Region CLZ14JB08
6 · The paper itself

Abstract

purposeThe purpose of this study is to investigate the application value of the extended embryo culture for 7-8 h in day 3 morning during IVF-ET process.

methodsEmbryos were retrospectively assessed during 08:00-09:00 on the morning of day 3 in the control group, and were assessed once again at 16:00 in the afternoon in the extended culture (EC) group. The embryos with good developmental potential were preferentially selected to transfer. The cumulative pregnancy outcomes were analyzed in one oocyte retrieval cycle.

resultsSimilar proportions were found in the rates of cumulative clinical pregnancy, cumulative live birth, and the perinatal/neonatal outcomes per oocyte retrieval cycle (P > 0.05). But higher total clinical pregnancy rate, higher total implantation rate, and lower total abortion rate were obtained in the EC group (P < 0.05). After EC, 53.58% of the embryos were able to continue to develop. The transferred embryos were mainly composed of ≥ 8-cell embryos (75.90%) in the EC group and ≤ 8-cell embryos (82.92%) in the control group. Interestingly, the implantation rates were increasingly improved with the increasing blastomere number up to 56.31% at the morula stage in the EC group, while they were limited to 32.33% at 8-cell stage in the control group.

conclusionsThe extended culture of day 3 embryos for 7-8 h not only reduced the risk of IVF-ET treatment compared to blastocyst culture through another 2-3 days, but also improved the clinical outcomes and the efficiency of every transferred cycle and every transferred embryo.

Indexed as

Pregnancy OutcomeAdultBlastomeresEmbryo Culture TechniquesEmbryo ImplantationEmbryo TransferFemaleFertilization in VitroHumansInfant, NewbornLive BirthOocyte RetrievalPregnancyPregnancy RateRetrospective StudiesExtended cultureIVF-ETPregnancy outcome

Identifiers

PMID29124461
PMCPMC5845037

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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.