October 1, 1979AJP Heart and Circulatory Physiology

Measurement of cardiac output by impedance cardiography under various conditions

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Why the study?

Is impedance cardiography a suitable and reproducible method to measure intrapatient changes in cardiac output compared to thermodilution?

Population

Various groups including normal subjects, subjects undergoing bloodletting, dialysis patients with…

Comparison

Impedance cardiography vs Thermodilution

Design

Other

Authors

PBPeter de BoerRadiotherapeutisch Instituut Friesland JRJan C. RoosAmsterdam UMC Location Vrije Universiteit Amsterdam GGG. G. GeyskesHypertension Institute

Discussion

Member takes

Implication

Impedance cardiography may track intrapatient cardiac output changes; leaves open routine clinical use or absolute-value replacement of thermodilution.

Structured PICO

Is impedance cardiography a suitable and reproducible method to measure intrapatient changes in cardiac output compared to thermodilution?

Population

Various groups including normal subjects (n=5), subjects undergoing bloodletting (n=3), dialysis patients with artificial large flow arteriovenous shunts (n=6), dialysis patients undergoing ultrafiltration (n=2), hypertensive patients undergoing salt depletion (n=20), patients receiving intravenous propranolol (n=13), and patients receiving intravenous diazoxide (n=6).

Intervention

Impedance cardiography

Comparator

Thermodilution

Outcome

Cardiac output (absolute values and percentage changes)surrogate

Impedance cardiography is a reproducible and suitable method for measuring intrapatient changes in cardiac output under strictly defined conditions, showing good correlation with thermodilution for percentage changes.

Cite This Study

Boer et al. (1979) studied this question.

synapsesocial.com/papers/6a82170a25f614688eaa9fc4 https://doi.org/10.1152/ajpheart.1979.237.4.h491

Topics

Hypertension management

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Implication

Impedance cardiography may track intrapatient cardiac output changes; leaves open routine clinical use or absolute-value replacement of thermodilution.

Measurement of cardiac output by impedance cardiography under various conditions

Discussion

Member takes

Implication

Structured PICO

Cite This Study

Topics

Measurement of cardiac output by impedance cardiography under various conditions

Discussion

Member takes

Implication

Structured PICO

Cite This Study

Also Consider

Topics

Also Consider