The Impact of Early Cleavage on Pregnancy and Obstetric Outcomes after Sin-gle Cleavage Stage Embryo and Single Blastocyst Transfer
- VernacularTitle:早期卵裂对单卵裂胚和单囊胚移植后妊娠结局及产科结局的影响
- Author:
Min YU
1
;
Leizhen XIA
1
;
Zhihui HUANG
1
;
Qiongfang WU
1
;
Jun TAN
1
Author Information
1. 江西省妇幼保健院辅助生殖中心,江西南昌 330038
- Publication Type:Journal Article
- Keywords:
Early cleavage;
Single cleavage embryo transfer;
Single blastocyst transfer;
Pregnancy outcomes;
Obstetric outcomes
- From:
Journal of Practical Obstetrics and Gynecology
2025;41(2):136-142
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the impact of early cleavage on the pregnancy and obstetric outcomes of fresh cycle single cleavage embryo and single blastocyst transfer.Methods:A retrospective study was conducted to analyze 794 patients who underwent single cleavage embryo transfer and 1466 patients who underwent single blastocyst transfer in the reproductive medicine center of our hospital from August 2018 to December 2022 during the fresh cycle treatment of in vitro fertilization/intracytoplasmic sperm injection and embryo transfer(IVF/ICSI-ET).The patients were divided into two groups according to whether the transferred embryos underwent normal early cleavage.In the single cleavage embryo transfer,there were 383 cases in the normal early cleavage group(early cleavage group)and 411 cases in the non normal early cleavage group(non-early cleavage group);in the single blastocyst transfer,there were 815 cases in the early cleavage group and 651 cases in the non-early cleavage group.The pregnancy and obstetric outcomes of the early cleavage group and non-early cleavage group were compared in single cleavage embryo transfer and single blastocyst transfer.Results:In the single cleavage embryo transfer,the human chorionic gonadotropin(hCG)positive rate,clinical pregnancy rate,and live birth rate in the early cleavage group were significantly higher than those in the non-early cleavage group(64.0％vs.55.7％,P=0.018;54.6％vs.47.0％,P=0.032;46.7％vs.38.7％,P=0.022).There were no significant differ-ences in biochemical abortion rate,multiple pregnancy rate,abortion rate,early abortion rate,premature delivery rate,low birth weight rate,macrosomia rate,and birth defect rate compared with the non-early cleavage group(P＞0.05);in the single blastocyst transfer,there were no significant differences in pregnancy outcomes and obstetric indicators between the early cleavage group and the non-early cleavage group(P＞0.05).Multivariate Logistic regression analysis showed that after adjusting for confounding factors on pregnancy outcomes,in the single cleavage embryo transfer,the hCG positive rate(aOR 1.54,95％CI 1.12-2.11,P=0.008),clinical preg-nancy rate(aOR 1.49,95％CI 1.09-2.04,P=0.012),and live birth rate(aOR 1.53,95％CI 1.12-2.09,P=0.008)in the early cleavage group were significantly higher than those in the non-early cleavage group;in the sin-gle blastocyst transfer,there were no significant differences for these indicators between the early cleavage group and the non-early cleavage group(P＞0.05).Conclusions:Transplantation of single cleavage embryo with nor-mal early cleavage can significantly improve the clinical pregnancy rate and live birth rate.Early cleavage during single blastocyst transplantation had no significant effect on clinical pregnancy outcome.Early cleavage had no significant effect on the obstetric outcomes of single cleavage embryo and single blastocyst transfer.
