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Table 1 Biometrical measurement results of the acardiac twin and the pump twin

From: Individualized intervention and growth dynamics assessment in TRAP sequence with conjoined twins based on radiofrequency ablation

Examine date

GW (w)

The Acardiac Twin

The Pump Twin

size (cm)

EW (g)

BPD (mm)

HC (mm)

AC (mm)

FL (mm)

EFWa (g)

Nov. 12th, 2023

13 + 1

3.3 × 1.9

7.5

-

-

-

-

-

Nov. 27th, 2023

15 + 2

4.4 × 2.1

15.8

32

-

-

18

-

Dec. 11th, 2023

17 + 2

7.3 × 3.8

51.5

39

-

-

24

-

Dec. 19th, 2023

18 + 3

7.9 × 4.3

61.5

43

-

-

26

-

Dec. 23rd, 2023

19

8.0 × 4.0

-

43

-

-

27

-

Jan. 2nd, 2024

20 + 3

7.9 × 3.6

-

47

183

160

32

364.2

Jan. 9th, 2024

21 + 3

6.9 × 3.5

-

50

185

172

35

430.6

Jan. 22nd, 2024

23 + 2

6.0 × 3.6

-

56

210

185

40

564.6

Feb. 19th, 2024

27 + 2

5.7 × 1.5

-

69

253

233

51

1085.6

Mar. 4th, 2024

29 + 2

5.8 × 1.5

-

74

267

254

55

1373.4

Mar. 18th, 2024

31 + 2

6.0 × 2.3

-

77

279

277

59

1726.7

Apr. 8th, 2024

34 + 2

5.9 × 2.0

-

84

296

290

65

2115.5

  1. Note: GW: gestation weeks; EW: estimated weight; HC: head circumference; AC: abdominal circumference; FL: femur length; EFW: estimated fetal weight. a: EFW was calculated by the INTERGROWTH-21st standards. -: none