Skip to main content

Table 2 Summary of identified parameters L ao , A ao,0 for all pigs and ranges of physiological parameters, mean aortic pressure (MAP), PWV, systolic period, and measured SV for volume expansion and dobutamine period

From: Improved pressure contour analysis for estimating cardiac stroke volume using pulse wave velocity measurement

 

Pig 1

Pig 2

Pig 3

Pig 4

Weight (kg)

 

24.5

20

23.5

23.3

Identified aortic dimension

 L-ao (m)

0.88

0.41

0.89

0.91

 Aao,0 (mm2)

201

269

473

163

Volume expansion

 MAP (mmHg)

152 [136 to 182]

114 [93 to 136]

111 [93 to 132]

55 [42 to 77]

 PWV (m/s)

5.5 [5.3 to 6.0]

6.7 [6.4 to 6.9]

8.5 [8.2 to 8.9]

3.9 [3.7 to 4.1]

 Heart rate (beats/min)

64 [62 to 67]

86 [78 to 94]

81 [73 to 88]

71 [69 to 74]

 Systolic period (s)

0.38 [0.33 to 0.46]

0.32 [0.25 to 0.39]

0.31 [0.26 to 0.38]

0.33 [0.31 to 0.36]

 SVmeasured (ml)

34 [28 to 40]

19 [16 to 23]

30 [26 to 39]

29 [25 to 34]

Dobutamine/+ volume expansion

 Pressure (mmHg)

150 [123 to 184]

90 [54 to 124]

100 [79 to 123]

61 [43 to 95]

 PWV (m/s)

6.0 [5.6 to 6.7]

6.3 [5.4 to 6.8]

8.2 [7.6 to 8.8]

4.6 [4.3 to 5.2]

 Heart rate (beats/min)

104 [90 to 108]

141 [136 to 142]

109 [98 to 120]

107 [93 to 115]

 Systolic period (s)

0.23 [0.22 to 0.31]

0.19 [0.18 to 0.22]

0.23 [0.19 to 0.3]

0.23 [0.21 to 0.31]

 SVmeansreud (ml)

28 [23 to 36]

24 [17 to 27]

25 [21 to 28]

27 [22 to 31]

Total no of heart beats analysed

 

2956

4945

3057

2451

  1. Data are presented as the mean [5th–95th percentiles]