Article
Oocyte maturity, oocyte fertilization and cleavage-stage embryo morphology are better in natural compared with high-dose gonadotrophin stimulated IVF cycles
18 Nov 2022
Abstract excerpt
RESEARCH QUESTION: Does high-dose gonadotrophin stimulation have an effect on oocyte and early-stage embryo development? DESIGN: This was a retrospective study including 616 natural cycle IVF (NC-IVF) and 167 conventional IVF (cIVF) cycles. In total, 2110 oocytes were retrieved and analysed in fresh cycles. In NC-IVF, only human chorionic gonadotrophin was applied to trigger ovulation. In cIVF, antagonist...
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