Embryo Development Using Two Commercial Single-step Media

Embryo Development and Utilization Using Two Commercial Single-step Media

This prospective study with sibling oocytes will evaluate the efficiency of two commercial single-step media, namely Sage 1-step and Continuous Single Culture Medium (CSCM), in terms of embryo utilization rates, blastocyst formation rates, embryo quality and pregnancy rates. Embryos will be cultured continuously for up to 6 days under identical conditions.

Inclusion Criteria:

• at least 10 oocytes retrieved

Exclusion Criteria:

• frozen oocytes
• testicular biopsy
• less than 10 oocytes retrieved
• older than 40 years