Evidence map›Paper›PMID 28837034›Full record

SynthesisJBRA assisted reproduction2017

Single versus sequential culture medium: which is better at improving ongoing pregnancy rates? A systematic review and meta-analysis.

Felipe Dieamant, Claudia G Petersen, Ana L Mauri, Vanessa Comar, Marina Mattila, Laura D Vagnini, Adriana Renzi, Bruna Petersen, Juliana Ricci, João Batista A Oliveira and 2 more

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in JBRA assisted reproduction, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 3 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

16 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. ESHRE recommendations on Good Practice in the IVF laboratory†.Human reproduction (Oxford, England) · 2026
    Guideline
  2. Pooled it
  3. Pooled it
  4. Review
  5. Culture of the Human Embryo.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  6. Observational
  7. Article
  8. Article
  9. Observational
  10. Article
  11. Time-lapse technology for embryo culture and selection.Upsala journal of medical sciences · 2020
    Review
  12. Article
  13. Correlation analysis between C natriuretic peptide and pregnancy outcome.American journal of translational research · 2020
    Article
  14. Article
  15. Article
  16. Review
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

12 authors.

Felipe DieamantCenter for Human Reproduction Prof. Franco Jr, Ribeirão Preto, Brazil.
Claudia G PetersenCenter for Human Reproduction Prof. Franco Jr, Ribeirão Preto, Brazil.
Ana L MauriCenter for Human Reproduction Prof. Franco Jr, Ribeirão Preto, Brazil.
Vanessa ComarCenter for Human Reproduction Prof. Franco Jr, Ribeirão Preto, Brazil.
Marina MattilaCenter for Human Reproduction Prof. Franco Jr, Ribeirão Preto, Brazil.
Laura D VagniniPaulista Center for Diagnosis Research and Training, Ribeirão Preto, Brazil.
Adriana RenziPaulista Center for Diagnosis Research and Training, Ribeirão Preto, Brazil.
Bruna PetersenPaulista Center for Diagnosis Research and Training, Ribeirão Preto, Brazil.
Juliana RicciCenter for Human Reproduction Prof. Franco Jr, Ribeirão Preto, Brazil.
João Batista A OliveiraCenter for Human Reproduction Prof. Franco Jr, Ribeirão Preto, Brazil.
Ricardo L R BaruffiCenter for Human Reproduction Prof. Franco Jr, Ribeirão Preto, Brazil.
Jose G FrancoCenter for Human Reproduction Prof. Franco Jr, Ribeirão Preto, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to evaluate if single medium is better than sequential medium at improving ongoing pregnancy rates in patients undergoing assisted reproductive technology (ART) procedures. The data featured in this meta-analysis were extracted from four randomized controlled trials yielded from a systematic search carried out on electronic databases. The primary endpoint was ongoing pregnancy rate. Secondary endpoints included clinical pregnancy and miscarriage rates. The endpoints for ongoing pregnancy rate were also analyzed based on the time at which the embryo transfers were performed: cleavage stage (day 2/3) and/or blastocyst stage (day 5/6). There were no significant differences between single and sequential medium for clinical pregnancy (RR=1.09; 95%CI=0.83-1.44; p=0.53), ongoing pregnancy (RR=1.11; 95%CI=0.87-1.40; p=0.39), or miscarriage rates (RR=0.89; 95%CI=0.44-1.81; p=0.74). No significant difference was found for ongoing pregnancy rate (RR=1.29; 95%CI=0.93-1.78; p=0.12) between single and sequential medium when only trials in which embryos were transferred at the blastocyst stage were included. In conclusion, the choice of embryo culture approach - single or sequential medium - did not affect the ongoing pregnancy rates of patients undergoing ART cycles.

Indexed as

Culture MediaAbortion, SpontaneousEmbryo Culture TechniquesFemaleHumansPregnancyPregnancy OutcomeRandomized Controlled Trials as TopicCulture Mediacontrolled clinical trialsembryo culture techniquesmeta-analysispregnancyrandomized

Identifiers

PMID28837034
PMCPMC5574647

What OpenQuestion holds

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Registered trials

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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.