Prediction of embryo euploidy and pregnancy outcome by blastocyst morphology and development speed for women receiving single embryo transfer
Background Selection of high-quality blastocysts is the most important factor determining the success of assisted reproductive technology. The objective of this study is to assess the values of blastocyst morphological quality and development speed for predicting euploidy and clinical pregnancy outc...
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| Format: | Article |
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Taylor & Francis Group
2024-12-01
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| Series: | Journal of Obstetrics and Gynaecology |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/01443615.2024.2338235 |
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| author | Kexin Dong Chunyan Wu Xuerong Hou Yanhong Zeng Lu Luo |
| author_facet | Kexin Dong Chunyan Wu Xuerong Hou Yanhong Zeng Lu Luo |
| author_sort | Kexin Dong |
| collection | DOAJ |
| description | Background Selection of high-quality blastocysts is the most important factor determining the success of assisted reproductive technology. The objective of this study is to assess the values of blastocyst morphological quality and development speed for predicting euploidy and clinical pregnancy outcome.Methods A total of 155 preimplantation genetic testing cycles including 959 blastocysts and 154 euploid blastocyst transfer cycles conducted between January 2018 and December 2019 were retrospectively analysed. The associations of blastocyst morphological quality and development speed (D) with chromosomal status, clinical pregnancy rate, early miscarriage rate, and ongoing pregnancy rate were evaluated by univariate and multivariate regression.Results The euploidy rate of development speed D5 blastocysts was significantly greater than that of D6 blastocysts (61.4% vs. 38.1%, P < 0.001), and the euploid rate of morphologically high-grade blastocysts was significantly greater than that of non-high-grade blastocysts. Development speed D5 (OR = 1.6, 95% CI 1.2–2.2, P = 0.02) and high-grade morphology (OR = 2.1, 95% CI 1.5–2.9, P = 0.01) were independent predictors of euploidy. The ongoing pregnancy rate of D5 blastocysts was significantly higher than that of D6 blastocysts (62.3% vs. 43.8%, P = 0.04). Transfer of euploid blastocysts with high-grade morphology resulted in a greater ongoing pregnancy rate than transfer of non-high-grade euploid blastocysts (60.7% vs. 43.2%, P = 0.049). Alternatively, D6 development speed was an independent risk factor for early pregnancy loss after euploid blastocyst transfer. Multivariate regression analysis adjusting for confounding factors identified maternal age, blastocyst development speed, and blastocyst morphological grade as independent predictors of euploidy but not of clinical pregnancy.Conclusion The recommended sequence of embryo transfer based on the present study is D5 high-grade > D6 high-grade > D5 non-high-grade > D6 non-high-grade. |
| format | Article |
| id | doaj-art-6cc7a8a41d8a4472843b4b2dc30cf1f7 |
| institution | Kabale University |
| issn | 0144-3615 1364-6893 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Obstetrics and Gynaecology |
| spelling | doaj-art-6cc7a8a41d8a4472843b4b2dc30cf1f72025-01-09T12:13:17ZengTaylor & Francis GroupJournal of Obstetrics and Gynaecology0144-36151364-68932024-12-0144110.1080/01443615.2024.2338235Prediction of embryo euploidy and pregnancy outcome by blastocyst morphology and development speed for women receiving single embryo transferKexin Dong0Chunyan Wu1Xuerong Hou2Yanhong Zeng3Lu Luo4The Centre of Reproductive Medicine, Department of Obstetrics and Gynaecology, First Affiliated Hospital of Sun Yat-sen University and Guangdong Provincial Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, P.R. ChinaThe Centre of Reproductive Medicine, Department of Obstetrics and Gynaecology, First Affiliated Hospital of Sun Yat-sen University and Guangdong Provincial Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, P.R. ChinaThe Centre of Reproductive Medicine, Department of Obstetrics and Gynaecology, First Affiliated Hospital of Sun Yat-sen University and Guangdong Provincial Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, P.R. ChinaThe Centre of Reproductive Medicine, Department of Obstetrics and Gynaecology, First Affiliated Hospital of Sun Yat-sen University and Guangdong Provincial Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, P.R. ChinaThe Centre of Reproductive Medicine, Department of Obstetrics and Gynaecology, First Affiliated Hospital of Sun Yat-sen University and Guangdong Provincial Key Laboratory of Reproductive Medicine, Guangzhou, Guangdong, P.R. ChinaBackground Selection of high-quality blastocysts is the most important factor determining the success of assisted reproductive technology. The objective of this study is to assess the values of blastocyst morphological quality and development speed for predicting euploidy and clinical pregnancy outcome.Methods A total of 155 preimplantation genetic testing cycles including 959 blastocysts and 154 euploid blastocyst transfer cycles conducted between January 2018 and December 2019 were retrospectively analysed. The associations of blastocyst morphological quality and development speed (D) with chromosomal status, clinical pregnancy rate, early miscarriage rate, and ongoing pregnancy rate were evaluated by univariate and multivariate regression.Results The euploidy rate of development speed D5 blastocysts was significantly greater than that of D6 blastocysts (61.4% vs. 38.1%, P < 0.001), and the euploid rate of morphologically high-grade blastocysts was significantly greater than that of non-high-grade blastocysts. Development speed D5 (OR = 1.6, 95% CI 1.2–2.2, P = 0.02) and high-grade morphology (OR = 2.1, 95% CI 1.5–2.9, P = 0.01) were independent predictors of euploidy. The ongoing pregnancy rate of D5 blastocysts was significantly higher than that of D6 blastocysts (62.3% vs. 43.8%, P = 0.04). Transfer of euploid blastocysts with high-grade morphology resulted in a greater ongoing pregnancy rate than transfer of non-high-grade euploid blastocysts (60.7% vs. 43.2%, P = 0.049). Alternatively, D6 development speed was an independent risk factor for early pregnancy loss after euploid blastocyst transfer. Multivariate regression analysis adjusting for confounding factors identified maternal age, blastocyst development speed, and blastocyst morphological grade as independent predictors of euploidy but not of clinical pregnancy.Conclusion The recommended sequence of embryo transfer based on the present study is D5 high-grade > D6 high-grade > D5 non-high-grade > D6 non-high-grade.https://www.tandfonline.com/doi/10.1080/01443615.2024.2338235Preimplantation genetic testingblastocyst morphologyeuploidyclinical pregnancy rateongoing pregnancy rate |
| spellingShingle | Kexin Dong Chunyan Wu Xuerong Hou Yanhong Zeng Lu Luo Prediction of embryo euploidy and pregnancy outcome by blastocyst morphology and development speed for women receiving single embryo transfer Journal of Obstetrics and Gynaecology Preimplantation genetic testing blastocyst morphology euploidy clinical pregnancy rate ongoing pregnancy rate |
| title | Prediction of embryo euploidy and pregnancy outcome by blastocyst morphology and development speed for women receiving single embryo transfer |
| title_full | Prediction of embryo euploidy and pregnancy outcome by blastocyst morphology and development speed for women receiving single embryo transfer |
| title_fullStr | Prediction of embryo euploidy and pregnancy outcome by blastocyst morphology and development speed for women receiving single embryo transfer |
| title_full_unstemmed | Prediction of embryo euploidy and pregnancy outcome by blastocyst morphology and development speed for women receiving single embryo transfer |
| title_short | Prediction of embryo euploidy and pregnancy outcome by blastocyst morphology and development speed for women receiving single embryo transfer |
| title_sort | prediction of embryo euploidy and pregnancy outcome by blastocyst morphology and development speed for women receiving single embryo transfer |
| topic | Preimplantation genetic testing blastocyst morphology euploidy clinical pregnancy rate ongoing pregnancy rate |
| url | https://www.tandfonline.com/doi/10.1080/01443615.2024.2338235 |
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