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Agreement between preload reserve measured by impedance cardiography and echocardiography during pregnancy

Permanent lenke
https://hdl.handle.net/10037/15312
DOI
https://doi.org/10.1007/s00404-018-4773-x
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article.pdf (882.4Kb)
Publisher`s version (PDF)
Dato
2018-04-05
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Forfatter
Liang, Huan; Vårtun, Åse; Acharya, Ganesh
Sammendrag
Purpose: Accurate assessment of cardiac function is important during pregnancy. Echocardiography and impedance cardiography (ICG) are commonly used noninvasive methods to measure stroke volume (SV) and cardiac output (CO). The diference in stroke volume (ΔSV) or cardiac output (ΔCO) measured at baseline and after passive leg raising (PLR) is a measure of preload reserve that predicts volume responsiveness. However, the agreement between these two methods in measuring preload reserve during pregnancy is unclear. The aim of our study was to investigate the correlation and the agreement between Doppler echocardiography and ICG in assessing preload reserve in pregnant women.

Methods: In this prospective observational cross-sectional study, preload reserve was assessed by measuring the SV and CO during baseline and 90 s after PLR simultaneously by Doppler echocardiography and ICG in healthy pregnant women during the second and third trimesters. Bland–Altman analysis was used to determine the agreement between the two methods. Bias was calculated as the mean difference between two methods and precision as 1.96 SD of the difference.

Results: A total of 53 pregnant women were included. We found a statistically signifcant correlation between ΔSV (R=0.56, p<0.0001) and ΔCO (R=0.39, p=0.004) measured by ICG and Doppler echocardiography. The mean bias for ΔSV was 2.52 ml, with a precision of 18.19 ml. The mean bias for ΔCO was 0.21 l/min, with a precision of 1.51 l/min.

Conclusion: There was a good agreement and a statistically signifcant correlation between ICG and Doppler echocardiography for measuring preload reserve.

Beskrivelse
Source at https://doi.org/10.1007/s00404-018-4773-x.
Forlag
Springer
Sitering
Liang, H., Vårtun, Å. & Acharya, G. (2018). Agreement between preload reserve measured by impedance cardiography and echocardiography during pregnancy. Archives of Gynecology and Obstetrics, 298(1), 59-66. https://doi.org/10.1007/s00404-018-4773-x
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  • Artikler, rapporter og annet (klinisk medisin) [1974]

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