Evidence map›Paper›PMID 24913025›Full record

ArticleJournal of assisted reproduction and genetics2014

Embryo catheter loading and embryo culture techniques: results of a worldwide Web-based survey.

Mindy S Christianson, Yulian Zhao, Gon Shoham, Irit Granot, Anat Safran, Ayatallah Khafagy, Milton Leong, Zeev Shoham

Registry-linked trialAbstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05924048 (Effect of Reducing the Oxygen Concentration From 5% to 2% on Intracytoplasmic Sperm Injection), which is not on this map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
–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.

NCT05924048 naunknown statusnot on this mapstarted 2023, after this paper: background citation

Effect of Reducing the Oxygen Concentration From 5% to 2% on Intracytoplasmic Sperm Injection (ICSI) Outcome

TypeinterventionalSponsorInternational Islamic Center for Population Studies and ResearchRan2023 to 2024Enrolled196ConditionsIVFArmsReducing the Oxygen Concentration From 5% to 2%
3 · Its place in the literature

Who cites it

35 citing papers in PubMed.

  1. Trial
  2. Article
  3. Review
  4. Review
  5. Review
  6. Culture of the Human Embryo.Methods in molecular biology (Clifton, N.J.) · 2026
    Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. [Hypoxia promotes differentiation of human induced pluripotent stem cells into embryoid bodiesNan fang yi ke da xue xue bao = Journal of Southern Medical University · 2022
    Article
  17. Article
  18. Review
  19. Article
  20. Observational
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.

Mindy S ChristiansonDepartment of Gynecology and Obstetrics, Division of Reproductive Endocrinology, Johns Hopkins University School of Medicine, Baltimore, MD, USA, mchris21@jhmi.edu.
Yulian Zhao
Gon Shoham
Irit Granot
Anat Safran
Ayatallah Khafagy
Milton Leong
Zeev Shoham

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo identify trends in embryo catheter loading and embryo culture techniques performed worldwide.

methodsA retrospective evaluation using the results of a web-based survey, (IVF Worldwide ( www.IVF-worldwide.com ), was performed.

resultsResponses from 265 centers in 71 countries were obtained. Most centers (97 %) preferred a catheter with its orifice on top, with only 3 % preferring a catheter with the orifice on its side; 41 % preferred a catheter marked for clear ultrasound view. The most commonly-reported methods of embryo loading were medium-air-embryo-air-medium (42 %), medium in catheter with embryo at end (20 %) and medium-air-embryo (15 %). In 68 % of centers the final volume of the catheter was up to 0.3 ml, with only 19 % using 0.3-0.5 ml and 1 % using 0.5-0.7 ml. Using reduced oxygen concentrations for embryo culture was divided between those who used it in combination with the two-gas system (34 %) and those who did not use it at all (39 %); 24 % reported using a three-gas system. Most clinics using reduced oxygen concentrations used it throughout the entire culture period. Half of centers (51 %) reported using reduced oxygen concentrations for the entire IVF population while 6 % reserved it only for blastocyst transfer. The use of sequential media was highly dominant with 40 % reporting its use.

Indexed as

Embryo ImplantationFertilization in VitroBlastocystCatheterizationEmbryo Culture TechniquesEmbryo TransferFemaleHumansInternational AgenciesInternetRetrospective Studies

Identifiers

PMID24913025
PMCPMC4130946

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Registered trials

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.