Degree of mosaicism in trophectoderm does not predict pregnancy potential: a corrected analysis of pregnancy outcomes following transfer of mosaic embryos
Abstract Background Preimplantation genetic screening (PGS) is increasingly utilized as an adjunct procedure to IVF. Recently healthy euploid live birth were reported following transfer of mosaic embryos. Several recent publications have surmised that the degree of trophectoderm (TE) mosaicism in tr...
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doaj-0ac9f0a2bc6f4d69bcd5b11f5b96949f2020-11-24T23:36:36ZengBMCReproductive Biology and Endocrinology1477-78272018-01-011611610.1186/s12958-018-0322-5Degree of mosaicism in trophectoderm does not predict pregnancy potential: a corrected analysis of pregnancy outcomes following transfer of mosaic embryosVitaly A. Kushnir0Sarah K. Darmon1David H. Barad2Norbert Gleicher3Center for Human ReproductionCenter for Human ReproductionCenter for Human ReproductionCenter for Human ReproductionAbstract Background Preimplantation genetic screening (PGS) is increasingly utilized as an adjunct procedure to IVF. Recently healthy euploid live birth were reported following transfer of mosaic embryos. Several recent publications have surmised that the degree of trophectoderm (TE) mosaicism in transferred embryos is predictive of ongoing pregnancy and miscarriage rates. Methods This is a corrected analysis of previously published retrospective data on vitro fertilization (IVF) cycle outcomes involving replacement of 143 mosaic and 1045 euploid embryos tested by PGS, utilizing high-resolution next-generation sequencing (NGS) of TE and determination of percentages of mosaicism. Receiver operating curves (ROCs) and measurement of area under the curve (AUC) were used to evaluated the accuracy of the predictor variable, proportion of aneuploid cells in a TE biopsy specimen, with IVF outcomes, ongoing pregnancy and miscarriage rates. Results Confirming findings of the previously published report we also found higher ongoing pregnancy rates (63.3% vs. 39.2%) and lower miscarriage rates (10.2% vs. 24.3%) with euploid embryo transfers than with mosaic embryo transfer. There, however, were no significant differences in ongoing pregnancy or miscarriage rates among mosaic embryo transfers at any threshold of aneuploidy. Based on AUC, TE biopsies predicted ongoing pregnancy for euploid, as well as mosaic embryos, in a range of 0.50 to 0.59 and miscarriage in a range from 0.50 to 0.66 Conclusions Degree of TE mosaicism was a poor predictor of ongoing pregnancy and miscarriage.http://link.springer.com/article/10.1186/s12958-018-0322-5In vitro fertilizationPreimplantation genetic diagnosisPreimplantation genetic screeningAneuploidyEmbryo selectionNext-generation sequencing |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Vitaly A. Kushnir Sarah K. Darmon David H. Barad Norbert Gleicher |
spellingShingle |
Vitaly A. Kushnir Sarah K. Darmon David H. Barad Norbert Gleicher Degree of mosaicism in trophectoderm does not predict pregnancy potential: a corrected analysis of pregnancy outcomes following transfer of mosaic embryos Reproductive Biology and Endocrinology In vitro fertilization Preimplantation genetic diagnosis Preimplantation genetic screening Aneuploidy Embryo selection Next-generation sequencing |
author_facet |
Vitaly A. Kushnir Sarah K. Darmon David H. Barad Norbert Gleicher |
author_sort |
Vitaly A. Kushnir |
title |
Degree of mosaicism in trophectoderm does not predict pregnancy potential: a corrected analysis of pregnancy outcomes following transfer of mosaic embryos |
title_short |
Degree of mosaicism in trophectoderm does not predict pregnancy potential: a corrected analysis of pregnancy outcomes following transfer of mosaic embryos |
title_full |
Degree of mosaicism in trophectoderm does not predict pregnancy potential: a corrected analysis of pregnancy outcomes following transfer of mosaic embryos |
title_fullStr |
Degree of mosaicism in trophectoderm does not predict pregnancy potential: a corrected analysis of pregnancy outcomes following transfer of mosaic embryos |
title_full_unstemmed |
Degree of mosaicism in trophectoderm does not predict pregnancy potential: a corrected analysis of pregnancy outcomes following transfer of mosaic embryos |
title_sort |
degree of mosaicism in trophectoderm does not predict pregnancy potential: a corrected analysis of pregnancy outcomes following transfer of mosaic embryos |
publisher |
BMC |
series |
Reproductive Biology and Endocrinology |
issn |
1477-7827 |
publishDate |
2018-01-01 |
description |
Abstract Background Preimplantation genetic screening (PGS) is increasingly utilized as an adjunct procedure to IVF. Recently healthy euploid live birth were reported following transfer of mosaic embryos. Several recent publications have surmised that the degree of trophectoderm (TE) mosaicism in transferred embryos is predictive of ongoing pregnancy and miscarriage rates. Methods This is a corrected analysis of previously published retrospective data on vitro fertilization (IVF) cycle outcomes involving replacement of 143 mosaic and 1045 euploid embryos tested by PGS, utilizing high-resolution next-generation sequencing (NGS) of TE and determination of percentages of mosaicism. Receiver operating curves (ROCs) and measurement of area under the curve (AUC) were used to evaluated the accuracy of the predictor variable, proportion of aneuploid cells in a TE biopsy specimen, with IVF outcomes, ongoing pregnancy and miscarriage rates. Results Confirming findings of the previously published report we also found higher ongoing pregnancy rates (63.3% vs. 39.2%) and lower miscarriage rates (10.2% vs. 24.3%) with euploid embryo transfers than with mosaic embryo transfer. There, however, were no significant differences in ongoing pregnancy or miscarriage rates among mosaic embryo transfers at any threshold of aneuploidy. Based on AUC, TE biopsies predicted ongoing pregnancy for euploid, as well as mosaic embryos, in a range of 0.50 to 0.59 and miscarriage in a range from 0.50 to 0.66 Conclusions Degree of TE mosaicism was a poor predictor of ongoing pregnancy and miscarriage. |
topic |
In vitro fertilization Preimplantation genetic diagnosis Preimplantation genetic screening Aneuploidy Embryo selection Next-generation sequencing |
url |
http://link.springer.com/article/10.1186/s12958-018-0322-5 |
work_keys_str_mv |
AT vitalyakushnir degreeofmosaicismintrophectodermdoesnotpredictpregnancypotentialacorrectedanalysisofpregnancyoutcomesfollowingtransferofmosaicembryos AT sarahkdarmon degreeofmosaicismintrophectodermdoesnotpredictpregnancypotentialacorrectedanalysisofpregnancyoutcomesfollowingtransferofmosaicembryos AT davidhbarad degreeofmosaicismintrophectodermdoesnotpredictpregnancypotentialacorrectedanalysisofpregnancyoutcomesfollowingtransferofmosaicembryos AT norbertgleicher degreeofmosaicismintrophectodermdoesnotpredictpregnancypotentialacorrectedanalysisofpregnancyoutcomesfollowingtransferofmosaicembryos |
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1725522601551331328 |