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Published: 2023-01-10
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DOI: https://doi.org/10.52852/tcncyh.v160i12V1.1122
Issue
Vol. 160 No. 12V1 (2022)
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Tư, N. B. ., Phương, V. H. ., & Tú, V. N. . (2023). 19. The relevance of the cardiac output indices measured by electrical cardiometry versus thermodilution in patients after open-heart surgery. Journal of Medical Research, 160(12V1), 137-144. https://doi.org/10.52852/tcncyh.v160i12V1.1122

19. The relevance of the cardiac output indices measured by electrical cardiometry versus thermodilution in patients after open-heart surgery

Nguyen Ba Tu, Vu Hoang Phuong, Vu Ngoc Tu

Main Article Content

Abstract

Objective: Non-invasive cardiac output measurement can replace invasive clinical methods. The study was conducted to investigate the correlation and the agreement of the cardiac output indices (cardiac index, stroke volume variation, and systemic vascular resistance index) measured by the non-invasive method Electrical Cardiometry (EC) compared with the invasive method Thermodilution (TD). 240 pairs of data were obtained from 15 patients; the correlation coefficients of these indices from the two methods calculated were 0.78, 0.84, and 0.84 respectively (p < 0.01). The Bland-Altman analysis reveals the percentage error of these indices between the two methods was 16.6%, 53.0%, and 17.9%, respectively. Therefore, there is a strong correlation between the two methods. The agreement between EC and TD is clinically acceptable and these two techniques can be used interchangeably when measuring cardiac index and systemic vascular resistance index, but more studies are needed to be able to conclude about the relevance when measuring stroke volume variation.

Article Details

Keywords

electrical cardiometry, thermodilution, cardiac index, cardiac output, stroke volume variation, systemic vascular resistance index

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