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Original Research
Higher abnormal fertilization, higher cleavage rate, and higher arrested embryos rate were found in conventional IVF than in intracytoplasmic sperm injection
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1
Center of Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing
2
Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing (China)
Clin. Exp. Obstet. Gynecol. 2015, 42(3), 372–375;
https://doi.org/10.12891/ceog1920.2015
Published: 10 June 2015
Abstract
Objective: The aim of this study was to investigate whether performing different fertilization technologies (intracytoplasmic sperm injection [ICSI] and in vitro fertilization [IVF]) may affect the result of fertilization in the normal fertilization cycles. Study design: The authors performed a retrospective analysis of 164 cycles using sibling oocytes in combined IVF/ICSI with achieved a normal fertilization (≥ 25%) both conventional IVF and ICSI in this infertility centre. Results: It was found that there were no differences in 2PN rate (70.25% vs 70.60%), but higher cleavage rate in ICSI than IVF insemination (98.99% vs 96.81%), higher arrested embryos rate in IVF than ICSI in 2PN group (20.00% vs 13.95%), and higher abnormal fertilization 1PN (3.87% vs 1.92%) and 3PN (3.63 vs 0.854%) in IVF than ICSI. Conclusion: there were some differences fertilization outcomes between ICSI and IVF, which may be related to different procedures between two techniques.
Keywords
IVF
ICSI
Embryos cleavage
Arrested embryos
1PN