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Table 2 Comparison of measurement of left ventricular stroke volume by electrical velocimetry versus transthoracic echocardiography using Bland–Altman analysis

From: Impedance cardiography (electrical velocimetry) and transthoracic echocardiography for non-invasive cardiac output monitoring in pediatric intensive care patients: a prospective single-center observational study

Study arm

Group

Number of patients/ measurements

Bias (%)

MPE (%)

EVVTI

All

72/146

7.81

26.16

OTX

28/65

5.05

23.03

SEPSIS

16/36

2.62

26.82

NEURO

9/16

6.98

14.79

PREM

26/41

39.00

46.27

EVMM

All

72/139

8.07

37.26

OTX

28/59

5.04

28.96

SEPSIS

16/35

2.57

43.53

NEURO

9/16

6.65

27.10

PREM

26/40

39.53

42.80

  1. Data were analyzed for subgroups. EVMM, electrical velocimetry versus the transthoracic echocardiography M-mode; EVVTI, electrical velocimetry versus the transthoracic echocardiography velocity time integral; MPE, mean percentage error; NEURO, acute neurological patients subgroup; OTX, solid organ transplantation subgroup; PREM, preterm infants subgroup; SEPSIS, sepsis or other organ failure subgroup.
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Critical Care

ISSN: 1364-8535