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Table 4 Cardiac geometry and function in the fetuses of mothers with diabetes and healthy controls

From: Glucose control during pregnancy in patients with type 1 diabetes correlates with fetal hemodynamics: a prospective longitudinal study

Parameter

18–22 weeks

28–32 weeks

T1DM

Controls

T1DM

Controls

EFW (Hadlock)

415 (371–455)

415 (378–456)

1737 (1565–1941)

1691 (1551–1853)

Umbilical artery PI

1.09 (0.97–1.22)

1.09 (1.01–1.16)

1.00 (0.86–1.07)

0.93 (0.82–1.05)

Mean uterine artery PI

0.83 (0.71–1.01)

0.96 (0.90–1.20)

0.64 (0.54–0.77)

0.75 (0.60–0.81)

Cardiac geometry

 Cardiothoracic ratio (area)

0.34 ± 0.05

0.35 ± 0.04

0.43 ± 0.06

0.41 ± 0.05

 Heart area (mm2)

422 ± 79

430 ± 84

1273 ± 204

1138 ± 146*

 Thoracic area (mm2)

1244 (1097–1311)

1226 (1113–1369)

3036 (2728–3292)

2805 (2628–3088)

 LV-EDD (mm)

6.24 ± 1.25

6.63 ± 1.34

10.60 ± 2.00

11.10 ± 1.88

 RV-EDD (mm)

6.44 ± 1.30

6.31 ± 1.21

11.51 ± 1.45

11.25 ± 2.02

 RV-EDD/LV-EDD ratio

1.06 ± 0.23

0.98 ± 0.22

1.09 (0.90–1.27)

1.06 (0.89–1.17)

 LV-EDL (mm)

13.7 (12.6–15.1)

13.4 (12.8–14.6)

23.4 (21.3–24.9)

20.3 (19.7–22.2)*

 RV-EDL (mm)

11.4 (10.0–12.7)

11.5 (10.5–12.7)

19.8 (17.9–21.8)

17.8 (16.5–19.4)

 RAVV/LAVV ratio

1.00 ± 0.12

0.96 ± 0.12

1.07 ± 0.14

1.03 ± 0.11

 LV sphericity index

0.45 (0.39–0.54)

0.47 (0.41–0.57)

0.44 (0.38–0.52)

0.52 (0.47–0.58)

 RV sphericity index

0.57 (0.49–0.67)

0.54 (0.50–0.58)

0.58 (0.51–0.65)

0.61 (0.51–0.71)

 Relative LV wall thickness

0.64 (0.50–0.86)

0.48 (0.43–0.70)

0.60 (0.44–0.84)

0.49 (0.37–0.68)

 Relative RV wall thickness

0.67 (0.52–0.91)

0.54 (0.42–0.81)

0.59 (0.45–0.68)

0.50 (0.39–0.75)

 Relative IVS thickness

0.68 ± 0.28

0.65 ± 0.28

0.71 ± 0.26

0.60 ± 0.20*

 AV diameter (mm)

3.70 (3.32–4.01)

3.70 (3.45–4.30)

6.00 (5.70–6.70)

6.51 (5.40–6.95)

 PV diameter (mm)

4.47 ± 0.51

4.54 ± 0.76

7.77 ± 0.94

7.67 ± 1.26

Diastolic function

 LV E (cm/s)

29.5 (27.5–32.9)

30.3 (26.0–32.7)

43.0 (35.6–47.0)

40.2 (36.7–45.7)

 LV A (cm/s)

50.0 (44.7–54.7)

48.1 (41.9–52.2)

57.2 (50.5–65.1)

53.1 (45.7–60.4)

 LV E/A

0.62 ± 0.08

0.64 ± 0.09

0.75 ± 0.11

0.78 ± 0.12

 RV E (cm/s)

33.7 (30.5–38.2)

33.3 (30.6–40.0)

44.1 (38.3–49.2)

45.2 (40.5–50.3)

 RV A (cm/s)

51.3 (47.5–57.1)

50.7 (46.4–56.9)

66.7 (52.5–69.5)

55.4 (51.3–61.3)

 RV E/A

0.65 ± 0.09

0.68 ± 0.08

0.73 ± 0.10

0.77 ± 0.11

Systolic function

 FHR-LV (/min)

148 (143–152)

146 (143–151)

137 (132–146)

139 (133–145)

 AV PSV (cm/s)

73.4 (64.0–79.4)

72.1 (64.1–79.7)

97.0 (86.4–109.2)

94.3 (82.6–100.3)

 LV SV (mL)

0.88 (0.72–1.04)

0.85 (0.73–1.16)

3.20 (2.68–4.52)

3.26 (2.46–4.24)

 LV-CO (mL/min/kg)

318 (247–388)

304 (268–400)

270 (225–332)

279 (206–340)

 FHR-RV (/min)

146 (141–152)

148 (146–153)

139 (134–146)

143 (138–146)

 PV PSV velocity (cm/s)

63.4 (54.6–74.0)

61.1 (55.8–69.5)

77.0 (67.8–100.0)

71.7 (66.8–82.2)*

 RV SV (mL)

1.14 (0.95–1.33)

1.04 (0.91–1.41)

4.97 (3.29–5.86)

4.08 (3.04–5.17)*

 RV-CO (mL/min/kg)

398 (348–461)

374 (322–480)

378 (301–474)

317 (276–440)

Global myocardial performance

 LV MPI

0.49 (0.43–0.56)

0.52 (0.42–0.57)

0.52 ± 0.09

0.53 ± 0.13

 RV MPI

0.50 (0.44–0.59)

0.50 (0.44–0.56)

0.54 ± 0.08

0.53 ± 0.12

  1. Data are given as mean ± SD, or median (interquartile range)
  2. Compared with T1DM: *P < 0.05, P < 0.01
  3. EFW: estimated fetal weight; PI: pulsatility index; LV: left ventricle; RV: right ventricle; EDD: end-diastolic diameter; EDL: end-diastolic length; RAVV: right atrioventricular valve; LAVV left atrioventricular valve; IVS interventricular septum; E: early diastolic peak velocity; A: atrial contraction peak velocity; FHR: fetal heart rate; AV: aortic valve; SV: stroke volume; CO: cardiac output; PV: pulmonary valve; MPI: myocardial performance index