open access

Vol 47, No 5 (2015)
Review articles
Published online: 2015-11-18
Submitted: 2015-10-29
Accepted: 2015-11-03

Hemodynamic monitoring: To calibrate or not to calibrate? Part 2 — Non-calibrated techniques

Jelle Bernards, Michaël Mekeirele, Britta Hoffmann, Yannick Peeters, Marijke De Raes, Manu L.N.G. Malbrain
DOI: 10.5603/AIT.a2015.0076
·
Anaesthesiol Intensive Ther 2015;47(5):501-516.

open access

Vol 47, No 5 (2015)
Review articles
Published online: 2015-11-18
Submitted: 2015-10-29
Accepted: 2015-11-03

Abstract

There is much evidence that fluid overload leads to adverse outcomes in perioperative and critically ill patients. Cardiac output monitoring can help us guiding initial and ongoing fluid resuscitation and can help us to assess whether a patient will be responsive to fluids when hypotensive. In recent years, many sophisticated devices that measure a variety of hemodynamic parameters have evolved on the market. We wanted to provide an overview of the different techniques available today, including their validation in different patient populations. In this second part of the review, we focus on non-calibrated techniques, both invasive and non-invasive. For each technique a short overview of the working principle, together with the advantages, disadvantages and the available validation literature is listed. Many promising minimal invasive monitoring devices can help us to further optimize our hemodynamic treatment in both the perioperative and critical care setting. However, the validation data are scarce for many of these techniques, especially in complex circumstances with changing hemodynamics (preload, afterload and contractility), as with the use of fluids and vasoactive medication. The measurements made by these devices, therefore, need to be interpreted with caution. Further improvements and more validation data are needed before these techniques can be implemented in common day practice. Moreover, in severely shocked hemodynamic unstable patients, calibrated techniques are to be preferred over those which are uncalibrated. Hence, the new techniques not only need to be accurate, but also need to be precise in order to keep track of changes.

Keywords

hemodynamic monitoring, calibrated, invasive, less invasive, non-invasive, thermodilution

About this article
Title

Hemodynamic monitoring: To calibrate or not to calibrate? Part 2 — Non-calibrated techniques

Journal

Anaesthesiology Intensive Therapy

Issue

Vol 47, No 5 (2015)

Pages

501-516

Published online

2015-11-18

DOI

10.5603/AIT.a2015.0076

Bibliographic record

Anaesthesiol Intensive Ther 2015;47(5):501-516.

Keywords

hemodynamic monitoring
calibrated
invasive
less invasive
non-invasive
thermodilution

Authors

Jelle Bernards
Michaël Mekeirele
Britta Hoffmann
Yannick Peeters
Marijke De Raes
Manu L.N.G. Malbrain

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