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How general semen quality influences the blastocyst formation rate: Analysis of 4205 IVF cycles
OBJECTIVE: To select embryos with higher implantation potential, the extended culture has been the most frequently applied strategy worldwide, and consequently leads to higher live birth rates per transfer. Sperm quality is a determining feature, and it may influence the outcomes of IVF from fertili...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Brazilian Society of Assisted Reproduction
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5982551/ https://www.ncbi.nlm.nih.gov/pubmed/29672007 http://dx.doi.org/10.5935/1518-0557.20180022 |
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author | Piccolomini, Mariana M Bonetti, Tatiana CS Motta, Eduardo La Serafini, Paulo C Alegretti, Jose R |
author_facet | Piccolomini, Mariana M Bonetti, Tatiana CS Motta, Eduardo La Serafini, Paulo C Alegretti, Jose R |
author_sort | Piccolomini, Mariana M |
collection | PubMed |
description | OBJECTIVE: To select embryos with higher implantation potential, the extended culture has been the most frequently applied strategy worldwide, and consequently leads to higher live birth rates per transfer. Sperm quality is a determining feature, and it may influence the outcomes of IVF from fertilization to embryo development. Therefore, we hypothesize that blastocyst formation may also be impaired by general semen quality. METHODS: We analyzed 4205 IVF cycles. Four study groups were designed according to semen quality: normal, mild alteration, severe alteration and epididymis. All cycles were intended to extend embryo culture until the blastocyst stage, and embryo development was evaluated. RESULTS: Regarding cleavage rate, the normal and mild alteration semen groups were equivalent, and the severe alteration and epididymis semen groups were equivalent to each other. The blastocyst formation rate decreased with semen quality. At least one blastocyst formed in 79.9% of cycles for the normal semen group, whereas the percentage of cycles with the formation of at least one blastocyst was slightly lower for the mild alteration (75.6%), severe alteration (76.4%) and epididymis (76.8%) semen groups. A multivariate logistic regression showed that for each additional cleaved embryo on day 3, the chance of having at least one blastocyst doubles. Additionally, the chance of having at least one blastocyst decreased when semen presented mild or severe alterations. CONCLUSION: The general quality of sperm is a good predictor of blastocyst formation, significantly affecting the likelihood of having at least one blastocyst at the end of the cycle. Based on our findings, it is necessary to consider general semen quality and the number of cleaved embryos when forecasting the possibility of blastocyst formation and transfer in an extended culture system. |
format | Online Article Text |
id | pubmed-5982551 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Brazilian Society of Assisted Reproduction |
record_format | MEDLINE/PubMed |
spelling | pubmed-59825512018-06-04 How general semen quality influences the blastocyst formation rate: Analysis of 4205 IVF cycles Piccolomini, Mariana M Bonetti, Tatiana CS Motta, Eduardo La Serafini, Paulo C Alegretti, Jose R JBRA Assist Reprod Original Article OBJECTIVE: To select embryos with higher implantation potential, the extended culture has been the most frequently applied strategy worldwide, and consequently leads to higher live birth rates per transfer. Sperm quality is a determining feature, and it may influence the outcomes of IVF from fertilization to embryo development. Therefore, we hypothesize that blastocyst formation may also be impaired by general semen quality. METHODS: We analyzed 4205 IVF cycles. Four study groups were designed according to semen quality: normal, mild alteration, severe alteration and epididymis. All cycles were intended to extend embryo culture until the blastocyst stage, and embryo development was evaluated. RESULTS: Regarding cleavage rate, the normal and mild alteration semen groups were equivalent, and the severe alteration and epididymis semen groups were equivalent to each other. The blastocyst formation rate decreased with semen quality. At least one blastocyst formed in 79.9% of cycles for the normal semen group, whereas the percentage of cycles with the formation of at least one blastocyst was slightly lower for the mild alteration (75.6%), severe alteration (76.4%) and epididymis (76.8%) semen groups. A multivariate logistic regression showed that for each additional cleaved embryo on day 3, the chance of having at least one blastocyst doubles. Additionally, the chance of having at least one blastocyst decreased when semen presented mild or severe alterations. CONCLUSION: The general quality of sperm is a good predictor of blastocyst formation, significantly affecting the likelihood of having at least one blastocyst at the end of the cycle. Based on our findings, it is necessary to consider general semen quality and the number of cleaved embryos when forecasting the possibility of blastocyst formation and transfer in an extended culture system. Brazilian Society of Assisted Reproduction 2018 /pmc/articles/PMC5982551/ /pubmed/29672007 http://dx.doi.org/10.5935/1518-0557.20180022 Text en http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Original Article Piccolomini, Mariana M Bonetti, Tatiana CS Motta, Eduardo La Serafini, Paulo C Alegretti, Jose R How general semen quality influences the blastocyst formation rate: Analysis of 4205 IVF cycles |
title | How general semen quality influences the blastocyst formation rate:
Analysis of 4205 IVF cycles |
title_full | How general semen quality influences the blastocyst formation rate:
Analysis of 4205 IVF cycles |
title_fullStr | How general semen quality influences the blastocyst formation rate:
Analysis of 4205 IVF cycles |
title_full_unstemmed | How general semen quality influences the blastocyst formation rate:
Analysis of 4205 IVF cycles |
title_short | How general semen quality influences the blastocyst formation rate:
Analysis of 4205 IVF cycles |
title_sort | how general semen quality influences the blastocyst formation rate:
analysis of 4205 ivf cycles |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5982551/ https://www.ncbi.nlm.nih.gov/pubmed/29672007 http://dx.doi.org/10.5935/1518-0557.20180022 |
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