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Table 4 Ability of the HCP to track changes in cardiac output correctly, for each of the three methods of CO manipulation

From: In-vivovalidation of a new non-invasive continuous ventricular stroke volume monitoring system in an animal model

Type of manipulation

Number of changes > SD

Concordant*

Discordant*

False positive*

False

negative*

Vena cava constriction

46

42 (91.3%)

1 (2.2%)

2 (4.3%)

1 (2.2%)

Cardiac pacing

4

3 (75.0%)

0

1 (25.0%)

0

Dobutamine

8

7 (87.5%)

0

1 (12.5%)

0

All manipulations combined

58

52 (89.6%)

1 (1.7%)

4 (6.9%)

1 (1.7%)

  1. Only changes larger than the overall standard deviation (SD, 0.27 L/minute) have been considered, see subsection 2.8
  2. (*): Data rendered as: number of points (percentage of total number of changes (> SD) in manipulation)
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Critical Care

ISSN: 1364-8535