A 3–4 h oocyte retrieval-ICSI interval optimizes clinical outcomes for women over 40 years

Abstract To explore an appropriate time interval between oocyte retrieval and intracytoplasmic sperm injection (ICSI) for optimal embryological and clinical outcomes in ICSI cycles over 40 years of maternal age. A retrospective analysis of 1476 ICSI fresh cycles from women aged over 40 years, was pe...

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Main Authors: Jingbo Chen, Yanfang Wang, Cong Fang, Tingting Li
Format: Article
Language:English
Published: Nature Portfolio 2023-09-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-41397-7
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author Jingbo Chen
Yanfang Wang
Cong Fang
Tingting Li
author_facet Jingbo Chen
Yanfang Wang
Cong Fang
Tingting Li
author_sort Jingbo Chen
collection DOAJ
description Abstract To explore an appropriate time interval between oocyte retrieval and intracytoplasmic sperm injection (ICSI) for optimal embryological and clinical outcomes in ICSI cycles over 40 years of maternal age. A retrospective analysis of 1476 ICSI fresh cycles from women aged over 40 years, was performed at the Reproduction Medicine Research Center of the Sixth Affiliated Hospital of Sun Yat-sen University, between December 2013 and August 2020. The fertilization rate and clinical pregnancy rate were the main outcomes. Multivariate linear regression and logistic regression analysis of factors showed that fertilization rate (P = 0.024) and clinical pregnancy rate (P = 0.011) were significantly associated with oocyte pick up (OPU)-ICSI interval. A longer OPU-ICSI interval (no more than 6 h) was associated with a higher fertilization rate but significantly decreased the clinical pregnancy rate when the OPU-ICSI interval was over 4 h (P < 0.05). The optimal OPU-ICSI interval is between 3 and 4 h for excellent embryological and clinical outcomes in ICSI cycles over 40 years of maternal age.
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spelling doaj.art-590afee3b6684123a0610653b741e82d2023-11-26T13:11:23ZengNature PortfolioScientific Reports2045-23222023-09-011311610.1038/s41598-023-41397-7A 3–4 h oocyte retrieval-ICSI interval optimizes clinical outcomes for women over 40 yearsJingbo Chen0Yanfang Wang1Cong Fang2Tingting Li3Reproductive Medicine Research Center, Sixth Affiliated Hospital of Sun Yat-Sen UniversityReproductive Medicine Research Center, Sixth Affiliated Hospital of Sun Yat-Sen UniversityReproductive Medicine Research Center, Sixth Affiliated Hospital of Sun Yat-Sen UniversityReproductive Medicine Research Center, Sixth Affiliated Hospital of Sun Yat-Sen UniversityAbstract To explore an appropriate time interval between oocyte retrieval and intracytoplasmic sperm injection (ICSI) for optimal embryological and clinical outcomes in ICSI cycles over 40 years of maternal age. A retrospective analysis of 1476 ICSI fresh cycles from women aged over 40 years, was performed at the Reproduction Medicine Research Center of the Sixth Affiliated Hospital of Sun Yat-sen University, between December 2013 and August 2020. The fertilization rate and clinical pregnancy rate were the main outcomes. Multivariate linear regression and logistic regression analysis of factors showed that fertilization rate (P = 0.024) and clinical pregnancy rate (P = 0.011) were significantly associated with oocyte pick up (OPU)-ICSI interval. A longer OPU-ICSI interval (no more than 6 h) was associated with a higher fertilization rate but significantly decreased the clinical pregnancy rate when the OPU-ICSI interval was over 4 h (P < 0.05). The optimal OPU-ICSI interval is between 3 and 4 h for excellent embryological and clinical outcomes in ICSI cycles over 40 years of maternal age.https://doi.org/10.1038/s41598-023-41397-7
spellingShingle Jingbo Chen
Yanfang Wang
Cong Fang
Tingting Li
A 3–4 h oocyte retrieval-ICSI interval optimizes clinical outcomes for women over 40 years
Scientific Reports
title A 3–4 h oocyte retrieval-ICSI interval optimizes clinical outcomes for women over 40 years
title_full A 3–4 h oocyte retrieval-ICSI interval optimizes clinical outcomes for women over 40 years
title_fullStr A 3–4 h oocyte retrieval-ICSI interval optimizes clinical outcomes for women over 40 years
title_full_unstemmed A 3–4 h oocyte retrieval-ICSI interval optimizes clinical outcomes for women over 40 years
title_short A 3–4 h oocyte retrieval-ICSI interval optimizes clinical outcomes for women over 40 years
title_sort 3 4 h oocyte retrieval icsi interval optimizes clinical outcomes for women over 40 years
url https://doi.org/10.1038/s41598-023-41397-7
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