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Pregnancy outcomes following in vitro fertilization using fresh or frozen embryo transfer
OBJECTIVE: The aim of this study was to investigate the pregnancy outcomes in women undergoing IVF using fresh and/or frozen embryo transfer. METHODS: In this retrospective patient record study, we reviewed 2,872 infertile women’s files, who were candidates for IVF. The patients were classified into...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Brazilian Society of Assisted Reproduction
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8489809/ https://www.ncbi.nlm.nih.gov/pubmed/34224240 http://dx.doi.org/10.5935/1518-0557.20210024 |
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author | Zargar, Mahvash Dehdashti, Sorour Najafian, Mahin Choghakabodi, Parastoo Moradi |
author_facet | Zargar, Mahvash Dehdashti, Sorour Najafian, Mahin Choghakabodi, Parastoo Moradi |
author_sort | Zargar, Mahvash |
collection | PubMed |
description | OBJECTIVE: The aim of this study was to investigate the pregnancy outcomes in women undergoing IVF using fresh and/or frozen embryo transfer. METHODS: In this retrospective patient record study, we reviewed 2,872 infertile women’s files, who were candidates for IVF. The patients were classified into two groups, including those who underwent fresh embryo transfer (n=1628) and/or frozen embryo transfer (FET) (n=1244). RESULTS: Fertility was achieved in 313 (19.23%) and 356 (28.62%) patients, who underwent fresh ET and FET, respectively. The rates of clinical pregnancy, ongoing pregnancy, and live births were significantly higher in the FET group than the fresh ET group. The incidence of multiple pregnancies, perinatal mortality, abortion in the first trimester, preterm delivery, and low birth weight were significantly higher among fresh ET group [38 (35.51%), 15 (14.50%), 72 (23.01%), 26 (8.30%), and 33 (10.54%), respectively] than in the FET group [25 (15.33%), 6 (6.87%), 63 (17.69%), 14 (3.93%), and 20 (5.61%); p<0.05]. In addition, the incidence of ectopic pregnancies, abortion in the second trimester, gestational diabetes, preeclampsia, and placenta previa were higher in the fresh ET group, but not significantly so (p>0.05). CONCLUSIONS: Women who underwent IVF via FET showed more successful fertility and pregnancy outcomes compared to those who underwent IVF by fresh ET. |
format | Online Article Text |
id | pubmed-8489809 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Brazilian Society of Assisted Reproduction |
record_format | MEDLINE/PubMed |
spelling | pubmed-84898092021-10-07 Pregnancy outcomes following in vitro fertilization using fresh or frozen embryo transfer Zargar, Mahvash Dehdashti, Sorour Najafian, Mahin Choghakabodi, Parastoo Moradi JBRA Assist Reprod Original Article OBJECTIVE: The aim of this study was to investigate the pregnancy outcomes in women undergoing IVF using fresh and/or frozen embryo transfer. METHODS: In this retrospective patient record study, we reviewed 2,872 infertile women’s files, who were candidates for IVF. The patients were classified into two groups, including those who underwent fresh embryo transfer (n=1628) and/or frozen embryo transfer (FET) (n=1244). RESULTS: Fertility was achieved in 313 (19.23%) and 356 (28.62%) patients, who underwent fresh ET and FET, respectively. The rates of clinical pregnancy, ongoing pregnancy, and live births were significantly higher in the FET group than the fresh ET group. The incidence of multiple pregnancies, perinatal mortality, abortion in the first trimester, preterm delivery, and low birth weight were significantly higher among fresh ET group [38 (35.51%), 15 (14.50%), 72 (23.01%), 26 (8.30%), and 33 (10.54%), respectively] than in the FET group [25 (15.33%), 6 (6.87%), 63 (17.69%), 14 (3.93%), and 20 (5.61%); p<0.05]. In addition, the incidence of ectopic pregnancies, abortion in the second trimester, gestational diabetes, preeclampsia, and placenta previa were higher in the fresh ET group, but not significantly so (p>0.05). CONCLUSIONS: Women who underwent IVF via FET showed more successful fertility and pregnancy outcomes compared to those who underwent IVF by fresh ET. Brazilian Society of Assisted Reproduction 2021 /pmc/articles/PMC8489809/ /pubmed/34224240 http://dx.doi.org/10.5935/1518-0557.20210024 Text en https://creativecommons.org/licenses/by-nc-nd/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivative License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium provided the original work is properly cited and the work is not changed in any way. |
spellingShingle | Original Article Zargar, Mahvash Dehdashti, Sorour Najafian, Mahin Choghakabodi, Parastoo Moradi Pregnancy outcomes following in vitro fertilization using fresh or frozen embryo transfer |
title | Pregnancy outcomes following in vitro fertilization using fresh or frozen embryo transfer |
title_full | Pregnancy outcomes following in vitro fertilization using fresh or frozen embryo transfer |
title_fullStr | Pregnancy outcomes following in vitro fertilization using fresh or frozen embryo transfer |
title_full_unstemmed | Pregnancy outcomes following in vitro fertilization using fresh or frozen embryo transfer |
title_short | Pregnancy outcomes following in vitro fertilization using fresh or frozen embryo transfer |
title_sort | pregnancy outcomes following in vitro fertilization using fresh or frozen embryo transfer |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8489809/ https://www.ncbi.nlm.nih.gov/pubmed/34224240 http://dx.doi.org/10.5935/1518-0557.20210024 |
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