First Author, year [ID] | embryo cryopreservation, indication | technique of cryopreservation | n° of patients | endometrial preparation | n° ET | n° of frozen embryos transferred | developmental stage | n° embryos implanted | n° clinical pregnancies | n° ongoing pregnancies or deliveries | n° malformations/newborns |
---|---|---|---|---|---|---|---|---|---|---|---|
Yuzpe AA, 2000 [22] | Supernumerary | Slow freezing | 2 | P | 2 | 7 | cleavage | 1 | 1 | 1 | 0/1 |
Lombardi E, 2003 [26] | Supernumerary | Slow freezing | 1 | P | 1 | 5 | cleavage | 1 | 1 | 1 | 0 |
Sermondade N, 2010 [15] | Supernumerary | Slow freezing | 5 | Â | 5 | 12 | cleavage | 2 | 2 | 1 | 0/1 |
Ming L, 2012 [14] | Supernumerary | Slow freezing | 64 | N/P | 64 | 165 | cleavage | 22 | 19 | 15 | 0/12 |
Moon JH, 2015 [35] | Supernumerary | Vitrification | 1 | P | 1 | 1 | blastocyst | 1 | 1 | 1 | 0 |
Sachdev NM, 2016 [36] | Elective PGT | Vitrification | 12 | N/P | 3 | 3 | blastocyst | 3 | 3 | 3 | 0/3 |
Li M, 2021 [37] | Elective | Vitrification | 332 | N/P | 332 | 594 | cleavage/ blastocyst | 141 | 122 | 99 | 1/109 |