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Journal of Anesthesia
Published in: Journal of Anesthesia 3/2018

01-06-2018 | Original Article

Accuracy and trending ability of the fourth-generation FloTrac/Vigileo System™ in patients undergoing abdominal aortic aneurysm surgery

Authors: Takuma Maeda, Kohshi Hattori, Miho Sumiyoshi, Hiroko Kanazawa, Yoshihiko Ohnishi

Published in: Journal of Anesthesia | Issue 3/2018

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Abstract

Purpose

The fourth-generation FloTrac/Vigileo™ improved its algorithm to follow changes in systemic vascular resistance index (SVRI). This revision may improve the accuracy and trending ability of CI even in patients who undergo abdominal aortic aneurysm (AAA) surgery which cause drastic change of SVRI by aortic clamping. The purpose of this study is to elucidate the accuracy and trending ability of the fourth-generation FloTrac/Vigileo™ in patients with AAA surgery by comparing the FloTrac/Vigileo™-derived CI (CIFT) with that measured by three-dimensional echocardiography (CI3D).

Methods

Twenty-six patients undergoing elective AAA surgery were included in this study. CIFT and CI3D were determined simultaneously in eight points including before and after aortic clamp. We used CI3D as the reference method.

Results

In the Bland–Altman analysis, CIFT had a wide limit of agreement with CI3D showing a percentage error of 46.7%. Subgroup analysis showed that the percentage error between CO3D and COFT was 56.3% in patients with cardiac index < 2.5 L/min/m2 and 28.4% in patients with cardiac index ≥ 2.5 L/min/m2. SVRI was significantly higher in patients with cardiac index < 2.5 L/min/m2 (1703 ± 330 vs. 2757 ± 798; p < 0.001). The tracking ability of fourth generation of FloTrac/Vigileo™ after aortic clamp was not clinically acceptable (26.9%).

Conclusions

The degree of accuracy of the fourth-generation FloTrac/Vigileo™ in patients with AAA surgery was not acceptable. The tracking ability of the fourth-generation FloTrac/Vigileo™ after aortic clamp was below the acceptable limit.
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Metadata
Title
Accuracy and trending ability of the fourth-generation FloTrac/Vigileo System™ in patients undergoing abdominal aortic aneurysm surgery
Authors
Takuma Maeda
Kohshi Hattori
Miho Sumiyoshi
Hiroko Kanazawa
Yoshihiko Ohnishi
Publication date
01-06-2018
Publisher
Springer Japan
Published in
Journal of Anesthesia / Issue 3/2018
Print ISSN: 0913-8668
Electronic ISSN: 1438-8359
DOI
https://doi.org/10.1007/s00540-018-2491-y

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