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Table 1 Corresponding vertical distances and the changes and variation rates of continuous cardiac index changes and dP/dtmax

From: The relationship between arterial transducer level and pulse contour waveform-derived measurements

Vertical distance

CCI change, L/minute per m2

Rate of CCI change, percentage

dP/dtmax change, mm Hg/second

Rate of dP/dtmax change, percentage

+20 cm

0.36

11.9

−36

−3.5

+15 cm

0.24

7.9

−27

−2.6

+10 cm

0.13

4.5

−17

−1.6

+5 cm

0.01

0.31

−6

−0.65

−5 cm

−0.03

−0.85

9

0.9

−10 cm

−0.11

−3.4

21

2.0

−15 cm

−0.20

−6.4

32

3.1

−20 cm

−0.29

−9.3

44

4.1

  1. Data are presented as the mean. CCI, continuous cardiac index; dP/dtmax, rate of left ventricular pressure rise during systole.