Detailed investigation into the cytogenetic constitution and pregnancy outcome of replacing mosaic blastocysts detected with the use of high-resolution next-generation sequencing
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Título: | Detailed investigation into the cytogenetic constitution and pregnancy outcome of replacing mosaic blastocysts detected with the use of high-resolution next-generation sequencing |
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Autor/es: | Munné, Santiago | Blazek, Joshua | Large, Michael | Martinez-Ortiz, Pedro A. | Nisson, Haley | Liu, Emmeline | Tarozzi, Nicoletta | Borini, Andrea | Becker, Amie | Zhang, John | Maxwell, Susan | Grifo, James | Babariya, Dhruti | Wells, Dagan | Fragouli, Elpida |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Innovación y Formación Didáctica |
Palabras clave: | Mosaicism | PGD/PGS | Next-generation sequencing | Pregnancy outcome |
Fecha de publicación: | jul-2017 |
Editor: | Elsevier |
Cita bibliográfica: | Fertility and Sterility. 2017, 108(1): 62-71.e8. doi:10.1016/j.fertnstert.2017.05.002 |
Resumen: | Objective: To determine the pregnancy outcome potential of mosaic embryos, detected by means of preimplantation genetic screening (PGS) with the use of next-generation sequencing (NGS). Design: Retrospective study. Setting: Genetics laboratories. Patient(s): PGS cycles during which either mosaic or euploid embryos were replaced. Intervention(s): Blastocysts were biopsied and processed with the use of NGS, followed by frozen embryo transfer. Trophectoderm (TE) biopsies were classified as mosaic if they had 20%–80% abnormal cells. Main Outcome Measure(s): Implantation, miscarriage rates, and ongoing implantation rates (OIRs) were compared between euploid and types of mosaic blastocysts. Result(s): Complex mosaic embryos had a significantly lower OIR (10%) than aneuploidy mosaic (50%), double aneuploidy mosaic (45%), and segmental mosaic (41%). There was a tendency for mosaics with 40%–80% abnormal cells to have a lower OIR than those with <40% (22% vs. 56%). However, few embryos (n = 34) with a mosaic error in 40%–80% of the TE sample were replaced. There was no difference between monosomic and trisomic mosaics or between entire chromosome mosaicism or segmental mosaicism. Implantation rates were significantly higher (70% vs. 53%), miscarriage rates lower (10% vs. 25%), and OIRs higher (63% vs. 40%) after euploid embryo transfer than after mosaic embryo transfer. Conclusion(s): Forty-one percent of mosaic embryos produced an ongoing implantation. Complex mosaic blastocysts had a lower OIR than other mosaics. Mosaic monosomies performed as well as mosaic trisomies and mosaic segmental aneuploidies. The results suggest that embryos with >40% abnormal cells and those with multiple mosaic abnormalities (chaotic mosaics) are likely to have lower OIRs and should be given low transfer priority. |
URI: | http://hdl.handle.net/10045/71559 |
ISSN: | 0015-0282 (Print) | 1556-5653 (Online) |
DOI: | 10.1016/j.fertnstert.2017.05.002 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | ©2017 The Authors. Published by Elsevier Inc. on behalf of the American Society for Reproductive Medicine. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1016/j.fertnstert.2017.05.002 |
Aparece en las colecciones: | Personal Investigador sin Adscripción a Grupo |
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2017_Munne_etal_Fertility&Sterility.pdf | 869,13 kB | Adobe PDF | Abrir Vista previa | |
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