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. 2021 May 1;14(1):166.
doi: 10.1186/s13104-021-05576-x.

Heart rate detection properties of dry-electrode ECG compared to conventional 3-lead gel-electrode ECG in newborns

Hanne Pike  1 , Joar Eilevstjønn  2 , Peder Bjorland  1 , Jørgen Linde  1 , Hege Ersdal  3   4 , Siren Rettedal  5
Affiliations

Heart rate detection properties of dry-electrode ECG compared to conventional 3-lead gel-electrode ECG in newborns

Hanne Pike et al. BMC Res Notes. .

Abstract

Objective: To compare the accuracy of heart rate detection properties of a novel, wireless, dry-electrode electrocardiogram (ECG) device, NeoBeat®, to that of a conventional 3-lead gel-electrode ECG monitor (PropaqM®) in newborns.

Results: The study population had a mean gestational age of 39 weeks and 2 days (1.5 weeks) and birth weight 3528 g (668 g). There were 950 heart rate notations from each device, but heart rate was absent from the reference monitor in 14 of these data points, leaving 936 data pairs to compare. The mean (SD) difference when comparing NeoBeat to the reference monitor was -0.25 (9.91) beats per minute (bpm) (p = 0.44). There was a deviation of more than 10 bpm in 7.4% of the data pairs, which primarily (78%) was attributed to ECG signal disturbance, and secondly (22%) due to algorithm differences between the devices. Excluding these outliers, the correlation was equally consistent (r2 = 0.96) in the full range of heart rate captured measurements with a mean difference of - 0.16 (3.09) bpm. The mean difference was less than 1 bpm regardless of whether outliers were included or not.

Keywords: Dry-electrode ECG; Electrocardiogram; Heart rate; NeoBeat; Neonate; Newborn; Resuscitation; Validation.

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Conflict of interest statement

JL is an employee of Laerdal Medical. JL`s spouse is an employee at Laerdal Global Health.

Figures

Fig. 1
Fig. 1
NeoBeat and reference monitor. Data collection of heart rate measurements by the dry-electrode NeoBeat and gel-electrode reference monitor
Fig. 2
Fig. 2
Deviation between the devices. Histogram and boxplot of deviation between devices. Y-axis indicate number of measurements and x-axis indicate the heart rate in beats per minute
Fig. 3
Fig. 3
Correlation between devices. Correlation plot (a) and Bland–Altman plot (b) for the data set with the 69 outliers removed
See this image and copyright information in PMC

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