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Bioelectrical Impedance Analysis of Body Composition and Survival in Patients with Heart Failure.

07:00 EST 17th November 2018 | BioPortfolio

Summary of "Bioelectrical Impedance Analysis of Body Composition and Survival in Patients with Heart Failure."

Studies have shown that higher body mass index is associated with improved prognosis in heart failure, and this is often termed the obesity paradox.

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This article was published in the following journal.

Name: Clinical cardiology
ISSN: 1932-8737
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Medical and Biotech [MESH] Definitions

A type of impedance plethysmography in which bioelectrical impedance is measured between electrodes positioned around the neck and around the lower thorax. It is used principally to calculate stroke volume and cardiac volume, but it is also related to myocardial contractility, thoracic fluid content, and circulation to the extremities.

Objective tests of middle ear function based on the difficulty (impedance) or ease (admittance) of sound flow through the middle ear. These include static impedance and dynamic impedance (i.e., tympanometry and impedance tests in conjunction with intra-aural muscle reflex elicitation). This term is used also for various components of impedance and admittance (e.g., compliance, conductance, reactance, resistance, susceptance).

Recording changes in electrical impedance between electrodes placed on opposite sides of a part of the body, as a measure of volume changes in the path of the current. (Stedman, 25th ed)

A class of statistical procedures for estimating the survival function (function of time, starting with a population 100% well at a given time and providing the percentage of the population still well at later times). The survival analysis is then used for making inferences about the effects of treatments, prognostic factors, exposures, and other covariates on the function.

The relative amounts of various components in the body, such as percentage of body fat.

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