Skip to main content
main-content

01.12.2017 | Advances in Monitoring for Anesthesia (LAH Critchley, Section Editor) | Ausgabe 4/2017 Open Access

Current Anesthesiology Reports 4/2017

Cardiac Output Monitoring: Validation Studies–how Results Should be Presented

Zeitschrift:
Current Anesthesiology Reports > Ausgabe 4/2017
Autoren:
Peter M. Odor, Sohail Bampoe, Maurizio Cecconi
Wichtige Hinweise
This article is part of the Topical Collection on Advances in Monitoring for Anaesthesia

Abstract

Purpose of Review

Cardiac output monitors can be assessed by a variety of techniques, but a common principle is quantifying agreement between a reference standard and new monitor. The current standard analysis technique is a Bland-Altman plot. The Bland-Altman plot evaluates bias between mean differences of cardiac output, from which an agreement interval is derived. These limits are, however, statistical limits of agreement and the clinical acceptability will depend upon context and application. This article provides suggestions for understanding and presenting the results of cardiac output validation, using standard metrology alongside proposals for criteria used to accept new techniques.

Recent Findings

Confusion about the appropriate way to report “precision” in method comparison studies stem from a lack of clarity on how single or repeated measurements should be interpreted. During serial measurements of cardiac output the true value changes, thus measurement should be considered as serial rather than repeated. Method agreement based upon precision achieved by cardiac output monitors needs to consider each method’s general variability around true values obtained and this data should be generated and presented as part of each study design.

Summary

Studies should report serial measurements from two techniques for cardiac output monitoring. Results of similar techniques from other studies may not always be transferred and compared. Bias and intervals of agreement should be presented as Bland-Altman plots with dynamic cardiac output trends in polar plots. Percentage error should be calculated to allow appropriate comparison of techniques for study populations with different expected cardiac output values.

Unsere Produktempfehlungen

e.Med AINS

Kombi-Abonnement

Mit e.Med AINS erhalten Sie Zugang zu CME-Fortbildungen des Fachgebietes AINS, den Premium-Inhalten der AINS-Fachzeitschriften, inklusive einer gedruckten AINS-Zeitschrift Ihrer Wahl.

Jetzt e.Med zum Sonderpreis bestellen!

e.Med Interdisziplinär

Kombi-Abonnement

Für Ihren Erfolg in Klinik und Praxis - Die beste Hilfe in Ihrem Arbeitsalltag als Mediziner

Mit e.Med Interdisziplinär erhalten Sie Zugang zu allen CME-Fortbildungen und Fachzeitschriften auf SpringerMedizin.de.

Jetzt e.Med zum Sonderpreis bestellen!

Literatur
Über diesen Artikel

Weitere Artikel der Ausgabe 4/2017

Current Anesthesiology Reports 4/2017 Zur Ausgabe

Advances in Monitoring for Anesthesia (LAH Critchley, Section Editor)

Perioperative Cardiac Output Monitoring Utilizing Non-pulse Contour Methods

Geriatric Anesthesia (S Akhtar, Section Editor)

Postoperative Cognitive Dysfunction

Geriatric Anesthesia (S Akhtar, Section Editor)

Fluid Management in the Elderly

Geriatric Anesthesia (S Akhtar, Section Editor)

Neuronal Connectivity, General Anesthesia, and the Elderly

Neu im Fachgebiet AINS

Mail Icon II Newsletter

Bestellen Sie unseren kostenlosen Newsletter Update AINS und bleiben Sie gut informiert – ganz bequem per eMail.

Bildnachweise