|
7 weeks
|
9 weeks
|
11 weeks
|
13 weeks
|
22 weeks
|
32 weeks
|
At birth
|
---|
GA (days)
|
0 CL
|
52 [51;54]
|
67 [65;67]
|
81 [79;81]
|
96 [94;97]
|
160 [157;161]
|
227 [226;230]
|
273 [271;280]
|
1 CL
|
51 [50;54]
|
66 [65;67]
|
79 [78;82]
|
93 [92;94]
|
157 [155;159]
|
226 [224;228]
|
273 [265;279]
|
> 1 CL
|
51 [50;54]
|
66 [65;67]
|
79 [78;82]
|
93 [92;94]
|
157 [155;159]
|
226 [224;228]
|
275 [269;284]
|
PV (cm3)
|
0 CL
|
12.8 ± 8.7
|
43.7 ± 15.1
|
94.4 ± 8.8
| | | | |
1 CL
|
17.8 ± 10.7
|
45.5 ± 16.4
|
98.0 ± 33.8
| | | | |
> 1 CL
|
15.2 ± 7.7
|
49.5 ± 21.8
|
102.1 ± 34.7
| | | | |
uPVV (cm3)
|
0 CL
|
5.1 ± 7.3
|
11.2 ± 4.9
|
19.4 ± 8.6
| | | | |
1 CL
|
3.7 ± 3.3
|
9.9 ± 7.0
|
19.0 ± 10.5
| | | | |
> 1 CL
|
2.7 ± 2.7*3
|
10.4 ± 10.1
|
17.4 ± 14.2
| | | | |
UtA RI
|
0 CL
|
0.82 ± 0.06
|
0.75 ± 0.07
|
0.70 ± 0.15
|
0.59 ± 0.14**1,2
|
0.39 ± 0.05***1,2
|
0.44 ± 0.08
| |
1 CL
|
0.86 ± 0.08
|
0.81 ± 0.09
|
0.76 ± 0.10
|
0.72 ± 0.10
|
0.54 ± 0.09
|
0.49 ± 0.09
| |
> 1 CL
|
0.83 ± 0.05*3
|
0.80 ± 0.07
|
0.75 ± 0.08
|
0.71 ± 0.09
|
0.55 ± 0.09
|
0.50 ± 0.07
| |
UtA PI
|
0 CL
|
2.36 ± 0.66
|
1.87 ± 0.53
|
1.92 ± 1.46
|
1.39 ± 0.85*1
|
0.53 ± 0.09***1,2
|
0.62 ± 0.16*2
| |
1 CL
|
2.75 ± 0.78
|
2.29 ± 0.73
|
1.96 ± 0.69
|
1.68 ± 0.60
|
0.90 ± 0.30
|
0.77 ± 0.27
| |
> 1 CL
|
2.38 ± 0.50**3
|
2.10 ± 0.46
|
1.81 ± 0.60
|
1.60 ± 0.52
|
0.93 ± 0.29
|
0.78 ± 0.21
| |
MAP (mmHg)
|
0 CL
|
80.8 ± 12.1
|
82.9 ± 9.9
|
84.0 ± 5.1
|
86.2 ± 8.7
|
76.1 ± 8.2
|
75.7 ± 6.7*1
| |
1 CL
|
80.4 ± 7.0
|
83.0 ± 8.1
|
83.9 ± 8.1
|
82.6 ± 7.5
|
78.5 ± 8.7
|
83.0 ± 9.3
| |
> 1 CL
|
79.7 ± 7.2
|
81.2 ± 7.1
|
82.7 ± 7.1
|
81.0 ± 6.5
|
78.3 ± 6.7
|
80.5 ± 8.1
| |
UmbA RI
|
0 CL
| | | | |
0.68 ± 0.04
|
0.61 ± 0.05
| |
1 CL
| | | | |
0.70 ± 0.05
|
0.61 ± 0.07
| |
> 1 CL
| | | | |
0.68 ± 0.06
|
0.63 ± 0.07
| |
UmbA PI
|
0 CL
| | | | |
1.09 ± 0.13
|
0.91 ± 0.11
| |
1 CL
| | | | |
1.15 ± 0.16
|
0.94 ± 0.16
| |
> 1 CL
| | | | |
1.11 ± 0.17
|
0.98 ± 0.16
| |
Placental Weight (gram)
|
0 CL
| | | | | | |
380 [260;426]
|
1 CL
| | | | | | |
438 [360;514]
|
> 1 CL
| | | | | | |
491 [433;563]
|
- Data are presented as (mean ± SD) or median (interquartile range). ***p < 0.001, **p < 0.01, *p < 0.05. 1, statistical difference between 0 CL and 1 CL; 2, statistical difference between 0 CL and > 1 CL; 3, statistical difference between 1 CL and > 1 CL. CL = corpus luteum; GA = gestational age; PV = placental volume; uPVV = utero-placental vascular volume; UtA = uterine artery; RI = resistance index; PI = pulsatility index; MAP = mean arterial pressure; UmbA = umbilical artery