The Number of Blastocysts Formed in the Outcome of Freeze All Strategy: COMFFETI Trial, Cumulative Delivery Rate

The Impact of Blastulation Rate in the Outcome of Freeze All Strategy: COMFFETI Trial, Cumulative Delivery Rate

A prospective study of the blastulation rate in the outcome of the Freeze all strategy

A prospective study of the blastulation rate in women under the age of 40 years following Freeze all strategy, according to AMH levels and sperm parameters.

Study group 1: number of vitrified blastocysts 0-4 Study group 2: number of vitrified blastocysts 5-7 Study group 3: number of vitrified blastocysts >7

Inclusion Criteria:

• primary infertility
• age 20-39 years;
• body mass index (BMI) 18-29kg/m2;
• regular menstrual cycle of 26-35days,
• presumed to be ovulatory;
• >1mil/ml spermatozoa;
• short antagonist protocol

Exclusion Criteria:

• poor responders;
• age ≥40;
• TESE sperm;
• PGS cycles;
• donor oocytes;
• donor sperm