changes in cardiopulmonary reserve and peripheral arterial function concomitantly with subclinical inflammation and oxidative stress in patients with heart failure with preserved ejection fraction
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ID: 240638
2014
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Abstract
Background. Changes in cardiopulmonary reserve and biomarkers related to wall stress, inflammation, and oxidative stress concomitantly with the evaluation of peripheral arterial blood flow have not been investigated in patients with heart failure with preserved ejection fraction (HFpEF) compared with healthy subjects (CTL). Methods and Results. Eighteen HFpEF patients and 14 CTL were recruited. Plasma levels of inflammatory and oxidative stress biomarkers were measured at rest. Brain natriuretic peptide (BNP) was measured at rest and peak exercise. Cardiopulmonary reserve was assessed using an exercise protocol with gas exchange analyses. Peripheral arterial blood flow was determined by strain gauge plethysmography. Peak VO2 (12.0±0.4 versus 19.1±1.1 mL/min/kg, P<0.001) and oxygen uptake efficiency slope (1.55±0.12 versus 2.06±0.14, P<0.05) were significantly decreased in HFpEF patients compared with CTL. BNP at rest and following stress, C-reactive-protein, interleukin-6, and TBARS were significantly elevated in HFpEF. Both basal and posthyperemic arterial blood flow were not significantly different between the HFpEF patients and CTL. Conclusions. HFpEF exhibits a severe reduction in cardiopulmonary reserve and oxygen uptake efficiency concomitantly with an elevation in a broad spectrum of biomarkers confirming an inflammatory and prooxidative status in patients with HFpEF.
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| Reference Key |
vitiello2014internationalchanges
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| Authors | ;Damien Vitiello;François Harel;Rhian M. Touyz;Martin G. Sirois;Joel Lavoie;Jonathan Myers;Anique Ducharme;Normand Racine;Eileen O’Meara;Mathieu Gayda;Malorie Chabot-Blanchet;Jean Lucien Rouleau;Simon de Denus;Michel White |
| Journal | attention, perception & psychophysics |
| Year | 2014 |
| DOI |
10.1155/2014/917271
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| URL | |
| Keywords |
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