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Table 3 Clinical pregnancy and implantation rates in cycles with maximum 6 MII oocytes

From: Clinical benefit of metaphase I oocytes

 

cycles with at least one MI oocyte matured (n = 102)

cycles with no MI oocyte matured (n = 85)

Total (n = 187)a

 

Exclusively embryos derived from MI oocytes

Mixed transfers

Exclusively embryos derived from sibling MII oocytes

  

N° of transfers

13

21

63

81

178

N° of embryos transferred

17

54

119

141

331

N° (%) of clinical pregnancies per embryo transfer

1 (7.7)

2 (9.5)

17 (27.0)

15 (18.5)

35 (19.7)

N° (%) of implanted embryos

1 (5.9)

3 (5.6)b

18 (15.1)b

15 (10.6)

37 (11.2)

  1. No statistical difference between columns.
  2. a In 9 ICSI cycles, no embryo transfer was done.
  3. b A twin pregnancy was obtained in these groups.