Evidence map›Paper›PMID 25617086›Full record

ArticleJournal of assisted reproduction and genetics2015

Neonatal outcomes after the implantation of human embryos vitrified using a closed-system device.

Hideyuki Iwahata, Shu Hashimoto, Masayasu Inoue, Tomoko Inoue, Keijiro Ito, Yoshiharu Nakaoka, Nao Suzuki, Yoshiharu Morimoto

Open access · bronzeAbstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% of its field
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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
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 at 1 institution in 1 country.

Hideyuki IwahataIVF Namba Clinic, 1-17-28 Minami-horie, Nishi-ku, Osaka, 550-0015, Japan.
Shu Hashimoto
Masayasu Inoue
Tomoko Inoue
Keijiro Ito
Yoshiharu Nakaoka
Nao Suzuki
Yoshiharu Morimoto
St. Marianna University School of Medicine · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeClosed vitrification poses a risk of adversely affecting embryo development, while it may minimize the risk of contamination. We assessed the effects of closed-system human embryo vitrification on fetal development after implantation, neonatal outcome, and clinical safety.

methodsThis was a retrospective cohort study conducted at a private fertility clinic. A total of 875 vitrified-warmed blastocysts that were single-transferred under hormone-replacement cycles between November 2011 and December 2013 were randomly divided into two groups (closed vitrification, n 313; open vitrification, n 562) after receiving the patients' consent forms. Developmental competence after implantation, including gestational age, birth weight, sex, Apgar score, and anomalies of newborns, after the transfer of blastocysts vitrified by closing vitrification was compared with that obtained in the case of open vitrification.

resultsThere were no significant differences between the use of closed and open vitrification systems in embryo development after implantation, gestational age, birth weight, sex ratio, Apgar score, and congenital anomalies of newborns.

conclusionHuman embryos can be vitrified using a closed vitrification system without impairment of neonatal development.

Indexed as

Pregnancy OutcomeVitrificationAdultBirth WeightBlastocystEmbryo ImplantationEmbryo TransferFemaleHumansInfant, NewbornMalePregnancyPregnancy RateRetrospective Studies

Identifiers

PMID25617086
PMCPMC4380885
OpenAlexW2002224972

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.