Table 1 Blood oxygenation, heart function, myocardial enzyme spectrum, and blood cell count data before and after the fetal death delivery in a 28-year-old woman infected with influenza A (H7N9) virus

Oxygenation and respiratory data

PaO₂/FiO₂

150

187

Positive end-expiratory pressure (mmHg)

10

9

Plateau pressure (mmHg)

28

25

Lung compliance (ml/cmH₂O)

43.4

61.5

Basic circulation data

Heart rate (beats/minute)

135

114

Mean arterial blood pressure (mmHg)

105

86

Vasoactive agent

None

None

Echocardiographic data

Left ventricular ejection fraction (%)

33

68

Right ventricular systolic pressure (mmHg)

52

42

Left ventricular end-diastolic diameter (mm/m²)

41

43

Left ventricular end-systolic diameter (mm/m²)

35

29

Left atrial diameter (mm/m²)

36

27

Interventricular septal thickness (mm/m²)

9

9

Left ventricular posterior wall thickness (mm/m²)

8

7

Myocardial enzyme spectrum

Aspartate transaminase (u/l)

66

61

Creatine kinase (U/l)

377

122

Creatine kinase isomer-MB (u/l)

20

40

Lactate dehydrogenase (u/l)

448

411

Troponin (ng/ml)

0.15

0.12

Blood cell counts

White blood cells (×10⁹/l)

26.7

27.4

Lymphocytes (×10⁹/l)

0.7

1.8

CD4⁺ T lymphocytes (%)

9.0

42.4

CD8⁺ T lymphocytes (%)

14.5

37.3

CD4⁺/CD8⁺

0.62

1.14

CD3⁺/CD19⁺ B lymphocytes (%)

7.7

2.3

CD3⁺CD56⁺ natural killer cells (%)

4.8

18.9