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Table 1 Patients' characteristics for the whole studying population

From: Relation of tricuspid annular displacement and tissue Doppler imaging velocities with duration of weaning in mechanically ventilated patients with acute pulmonary edema

Variables

Whole study group (n = 32)

Duration of weaning <7 days (n = 20)

Duration of weaning ≥ 7 days (n = 12)

p value

Gender (m/f)

26 (81%)/6 (19%)

16/4 (80%/20%)

10/2 (83%/17%)

NS

Age (years)

63.31 ± 5.23 (55-77)

63.85 ± 5.17

62.42 ± 5.45

NS

BSA (m2)

2 ± 0.29 (1.5-2.7)

2 ± 0.3

1.9 ± 0.2

NS

TAPSE (mm)

17.43 ± 3.16(12.2-24.2)

19.13 ± 2.59

14.59 ± 1.56

<0.001

Sm (cm/sec)

10.51 ± 2.08 (7.6-15.4)

11.62 ± 1.77

8.68 ± 0.94

<0.001

Em/Am

2 ± 1.07 (0.4-3.4)

2.62 ± 0.67

0.98 ± 0.80

<0.001

Ε/e'

9.85 ± 1.86 (7-13.2)

8.98 ± 1.70

11.31 ± 1.02

<0.001

LVEF (%)

40.13 ± 3.77 (32-46)

42.05 ± 3.05

36.92 ± 2.46

<0.001

RVFAC (%)

28.06 ± 5.26 (18-38)

30.95 ± 3.45

23.25 ± 4.11

<0.001

SBP (mm Hg)

129.7 ± 12.9 (99-152)

134.75 ± 8.50

121.50 ± 15.18

<0.05

PASP (mm Hg)

44.78 ± 10.38 (30-62)

38.65 ± 7.22

55 ± 5.59

<0.001

HR (beats/min)

85.75 ± 5.57 (73-97)

84.85 ± 5.72

87.25 ± 5.19

NS

Duration of controlled ventilation (days)

7 ± 3.18 (2-14)

4.6 ± 1.17

8.1 ± 3.2

<0.05

  1. NS: no significant, m/f: male/female.
  2. BSA: body surface area, TAPSE: tricuspid annular plane systolic excursion, Sm: systolic right ventricular (RV) tissue Doppler imaging (TDI) velocity, Em/Am: ratio of early (Em) vs late (Am) diastolic RV TDI velocities, Ε/e' lateral: ratio of maximal velocities of mitral PW Doppler E wave and TDI e' wave of the mitral annulus at the level of lateral wall, LVEF: left ventricular ejection fraction, RVFAC: right ventricular fractional area change, SBP: systolic blood pressure, PASP: pulmonary artery systolic pressure, HR: heart rate. Values are expressed as mean ± standard deviation (range).