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Table 2 IVF cycle characteristics

From: Monozygotic dichorionic-diamniotic pregnancies following single frozen-thawed blastocyst transfer: a retrospective case series

 

COH protocol

Gonadotropin injection (units)

Days of stimulation

# of oocytes retrieved

# of blastocysts

Fertilization method

AH

PGT

Endometrial preparation

Embryo day at transfer

Grade of blastocyst at thaw

Endometrial thickness in FET (mm)

Case 1

Antagonist

975

9

32

3

ICSI

Yes

Yes

HRT

D5

B5BC

9

Case 2

Short agonist

3225

12

17

1

ICSI

No

No

HRT

D5

B3BB

8

Case 3

Antagonist

750

9

11

4

IVF

No

No

HRT

D5

B4BA

10

Case 4

CC + HMG

850

10

21

9

ICSI

No

No

Down-regulated

D5

B5BA

9

Case 5

Short agonist

1800

8

14

7

ICSI

No

No

HRT

D5

B4AB

8

Case 6

Antagonist

1000

8

18

5

ICSI

No

No

Down-regulated

D5

B3CB

9

Case 7

Long agonist

3300

11

7

1

IVF

No

No

Down-regulated

D5

B4BB

11

Case 8

CC + HMG

1125

9

9

3

ICSI

Yes

Yes

HRT

D5

B5BB

7

Case 9

Antagonist

1450

10

31

16

ICSI

Yes

Yes

Down-regulated

D5

B5CB

9

Case 10

Short agonist

1350

9

21

4

ICSI

Yes

Yes

Down-regulated

D5

B5BC

11

Case 11

CC + HMG

1800

9

6

3

IVF

No

No

Down-regulated

D5

B4BB

11

Case 12

CC + HMG

2250

9

7

3

ICSI

Yes

Yes

Down-regulated

D6

B6AB

8

Case 13

Antagonist

1987.5

10

28

5

IVF

No

No

HRT

D5

B5BC

7