Evidence map›Paper›PMID 28070710›Full record

ArticleJournal of assisted reproduction and genetics2017

The accumulation of vitrified oocytes is a strategy to increase the number of euploid available blastocysts for transfer after preimplantation genetic testing.

Sandrine Chamayou, Maria Sicali, Carmelita Alecci, Carmen Ragolia, Annalisa Liprino, Daniela Nibali, Giorgia Storaci, Antonietta Cardea, Antonino Guglielmino

Registry-linked trialAbstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02820415 (Oocyte Accumulation by Vitrification is a Valid Strategy to Increase the Number of Euploid Available Embryos for Biopsy and Transfer After Preimplantation Genetic Testing), which is not on this map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing 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.

NCT02820415 completednot on this map

Oocyte Accumulation by Vitrification is a Valid Strategy to Increase the Number of Euploid Available Embryos for Biopsy and Transfer After Preimplantation Genetic Testing

Typeobservational_patient_registrySponsorUnità di Medicina della Riproduzione, ItalyRan2014 to 2015Enrolled60ConditionsIncrease the Number of Blastocyst to Biopsy for Preimplantation Genetic TestingArmschromosomal status of blastocysts from fresh and vitrified/warmed oocytes
3 · Its place in the literature

Who cites it

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

  1. Pooled it
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  12. The status of preimplantation genetic testing in the UK and USA.Human reproduction (Oxford, England) · 2020
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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

9 authors.

Sandrine ChamayouUnità di Medicina della Riproduzione-Centro HERA, via Barriera del Bosco n. 51/53, 95030, Sant'Agata Li Battiati, Catania, Italy. s.chamayou@yahoo.fr.
Maria SicaliUnità di Medicina della Riproduzione-Centro HERA, via Barriera del Bosco n. 51/53, 95030, Sant'Agata Li Battiati, Catania, Italy.
Carmelita AlecciUnità di Medicina della Riproduzione-Centro HERA, via Barriera del Bosco n. 51/53, 95030, Sant'Agata Li Battiati, Catania, Italy.
Carmen RagoliaUnità di Medicina della Riproduzione-Centro HERA, via Barriera del Bosco n. 51/53, 95030, Sant'Agata Li Battiati, Catania, Italy.
Annalisa LiprinoUnità di Medicina della Riproduzione-Centro HERA, via Barriera del Bosco n. 51/53, 95030, Sant'Agata Li Battiati, Catania, Italy.
Daniela NibaliUnità di Medicina della Riproduzione-Centro HERA, via Barriera del Bosco n. 51/53, 95030, Sant'Agata Li Battiati, Catania, Italy.
Giorgia StoraciUnità di Medicina della Riproduzione-Centro HERA, via Barriera del Bosco n. 51/53, 95030, Sant'Agata Li Battiati, Catania, Italy.
Antonietta CardeaUnità di Medicina della Riproduzione-Centro HERA, via Barriera del Bosco n. 51/53, 95030, Sant'Agata Li Battiati, Catania, Italy.
Antonino GuglielminoUnità di Medicina della Riproduzione-Centro HERA, via Barriera del Bosco n. 51/53, 95030, Sant'Agata Li Battiati, Catania, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIn a preimplantation genetic diagnosis for aneuploidy (PGD-A) program, the more embryos available for biopsy, consequently increases the chances of obtaining euploid embryos to transfer. The aim was to increase the number of viable euploid blastocysts in patients undergoing PGD-A using fresh oocytes together with previously accumulated vitrified oocytes.

methodsSixty-nine patients with normal ovarian reserve underwent PGD-A for repeated implantation failure or recurrent pregnancy loss indication. After several cycles of ovarian stimulation, 591 accumulated vitrified oocytes and 463 fresh oocytes were micro-injected with the same partner's semen sample. PGD-A was completed on 134 blastocysts from vitrified/warmed oocytes and 130 blastocysts from fresh oocytes.

resultsA mean of 9.6% euploid blastocyst per micro-injected vitrified/warmed oocytes and 11.4% euploid blastocyst per micro-injected fresh oocyte were obtained (p > 0.05). The euploidy and aneuploidy rates were comparable in blastocysts obtained from micro-injected vitrified/warmed oocytes and fresh oocytes (42.5 versus 40.8% and 57.5 versus 59.2%, p > 0.05). Implantation rates of euploid blastocysts were comparable between the two sources of oocytes (56.0% from vitrified/warmed oocytes versus 60.9% from fresh oocytes, p > 0.05).

conclusionsOocyte vitrification and warming do not generate aneuploidy in blastocysts. The number of viable euploid embryos for transfer can be increased by using accumulated vitrified oocytes together with fresh oocytes in ICSI.

trial registrationNCT02820415 ClinicalTrials.gov.

Indexed as

AneuploidyFertilization in VitroAdultBlastocystCryopreservationEmbryo TransferFemaleHumansOocytesOvarian ReservePregnancyPreimplantation DiagnosisVitrificationAneuploidyNext generation sequencingOocyte vitrificationPreimplantation genetic diagnosisPreimplantation genetic screening

Identifiers

PMID28070710
PMCPMC5401691

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Registered trials

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