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Table 2 Right and left ventricular function data during normovolemia (BL), hypovolemia (BW), pulmonary embolism (PE) and volume loading (VOL)

From: Pulmonary hypertension attenuates the dynamic preload indicators increase during experimental hypovolemia

 

BL

BW

PE

VOL

Right ventricle

 EDP (mm Hg)

3.9 ± 0.8

2.2 ± 0.6

5.4 ± 2.1§

6.3 ± 1.9§

 Tau (msec)

10 ± 7

9 ± 4

23 ± 5*§

27 ± 7*§

 Tau/T (10-3)

2.1 ± 1.2

1.7 ± 0.8

4.9 ± 1.5§

6.0 ± 2.1*§

 dP/dt/DP (sec-1)

91 ± 22

85 ± 21

65 ± 20*§

69 ± 17*

 SW (mm Hg.mL)

3.2 ± 0.5

2.9 ± 0.7

2.4 ± 0.7

2.3 ± 0.8

Left ventricle

 EDP (mm Hg)

4.5 ± 1.5

1.3 ± 1.1*

4.0 ± 0.9

6.3 ± 1.8§

 Tau (msec)

10 ± 6

9 ± 5

10 ± 4

11 ± 5

 Tau/T (10-3)

2.6 ± 2.3

1.7 ± 1.0

2.1 ± 1.1

2.4 ± 1.5

 dP/dt/DP (sec-1)

131 ± 13

126 ± 15

94 ± 16*§

99 ± 5*§

 SW (mm Hg.mL)

15.0 ± 1.8

13.3 ± 3.0

9.0 ± 2.7*

9.5 ± 2.5*

  1. Mean ± SD. *p < 0.05 vs BL; §p < 0.05 vs BW
  2. EDP end-diastolic pressure, dP/dt/DP ratio of the first derivative of ventricular pressure to the simultaneously highest isovolumic developed pressure, SW stoke work; tau time constant relaxation, Tau /T ratio of tau and cardiac cycle period