Influence of lung volume, fluid and capillary recruitment during positional changes and exercise on thoracic impedance in heart failure

Highlights • Intrathoracic impedance increased with lung volume during slow vital capacity maneuvers. • Positional changes (upright to supine) resulted in increased impedance, while pulmonary blood volume increased, and an index of extravascular lung water and lung volume decreased. • During exercis...

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Veröffentlicht in:	Respiratory physiology & neurobiology 2014-10, Vol.202, p.75-81
Hauptverfasser:	Kim, Chul-Ho, Fuglestad, Matthew A, Richert, Maile L. Ceridon, Shen, Win K, Johnson, Bruce D
Format:	Artikel
Sprache:	eng
Schlagworte:	Aged Analysis of Variance Electric Impedance Exercise - physiology Exercise Test Female Fluid accumulation Heart failure Heart Failure - pathology Heart Failure - rehabilitation Humans Lung - blood supply Lung - physiopathology Lung impedance Lung Volume Measurements Male Medical Education Middle Aged Pulmonary Diffusing Capacity Pulmonary/Respiratory
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creator	Kim, Chul-Ho Fuglestad, Matthew A Richert, Maile L. Ceridon Shen, Win K Johnson, Bruce D
description	Highlights • Intrathoracic impedance increased with lung volume during slow vital capacity maneuvers. • Positional changes (upright to supine) resulted in increased impedance, while pulmonary blood volume increased, and an index of extravascular lung water and lung volume decreased. • During exercise, lung volume and pulmonary blood volume increased, and an index of extravascular lung water decreased. However, impedance was not altered significantly.
doi_str_mv	10.1016/j.resp.2014.08.001
format	Article
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source	MEDLINE; Elsevier ScienceDirect Journals
subjects	Aged Analysis of Variance Electric Impedance Exercise - physiology Exercise Test Female Fluid accumulation Heart failure Heart Failure - pathology Heart Failure - rehabilitation Humans Lung - blood supply Lung - physiopathology Lung impedance Lung Volume Measurements Male Medical Education Middle Aged Pulmonary Diffusing Capacity Pulmonary/Respiratory
title	Influence of lung volume, fluid and capillary recruitment during positional changes and exercise on thoracic impedance in heart failure
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