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Table 1 Outcome of immature oocyte retrieved from ovarian cortex according to the menstrual cycle characteristic

From: Vitrification of in vitro matured oocytes collected from antral follicles at the time of ovarian tissue cryopreservation

Characteristic of the patient's menstrual cycle

Patients

n

Mean age ± SEM

Mean fragments of ovarian tissue (range)

Oocytes retrieved

n (range)

Mean oocytes retrieved

/fragment

Mean oocytes retrieved

/patients

Stage at collection (%)

IVM rate

       

GV

MI

MII

 

OC

11

23.1 ± 1.3

20.1 (10-29)

38 (0-9)

0.17 ± 0.07a

3.4 ± 1.06a

71%

29%

0%

42.1%

Natural cycle FP

19

26.3 ± 1.5

21.6 (7-32)

69 (0-15)

0.17 ± 0.06a

3.6 ± 1.09a

80%

19%

1%

27.9%

Natural cycle LP

16

27.9 ± 1.1

18.1 (12-26)

44 (0-13)

0.15 ± 0.05a

2.8 ± 0.83a

84%

14%

2%

39.5%

Post-partum

5

31 ± 2.2

26.3 (16-36)

33 (1-12)

0.23 ± 0.12a

6.6 ± 1.86

91%

6%

3%

28.1%

Unknown

2

29.5 ± 0.5

20-32

8 (0-8)

0.15 ± 0.26

4 ± 4

100%

0%

0%

12.5%

Prepubertal

4

9.2 ± 1.4

31.7 (17-40)

46 (2-22)

0.36 ± 0.28b

11.5 ± 4.27b

93%

7%

0%

23.9%

Total

57

26 ± 0.9

21.8 (7-40)

238 (0-22)

0.19

4

84%

14.7%

1.3%

31%

  1. GV = germinal vesicle; MI = metaphase I; MII = metaphase II; OC = oral contraception; FP = follicular phase; LP = luteal phase; IVM = in vitro maturation; n = number;
  2. a vs b within the same column, p < 0.05