SciELO - Scientific Electronic Library Online

 
vol.33 issue3Changes in nutritional status and its reflection in body composition in Chilean women with metabolic syndromeKinantropometry characteristic of elite baseball players author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Nutrición Hospitalaria

On-line version ISSN 1699-5198Print version ISSN 0212-1611

Abstract

CASTILLO-MARTINEZ, Lilia et al. Body composition changes assessed by bioelectrical impedance and their associations with functional class deterioration in stable heart failure patients. Nutr. Hosp. [online]. 2016, vol.33, n.3, pp.623-628. ISSN 1699-5198.  http://dx.doi.org/10.20960/nh.270.

Background: Heart failure (HF) patients develop important changes in body composition, but only a small number of studies have evaluated the associations between these changes and functional class deterioration in a prospective manner. Objective: The aim of this study was to evaluate whether changes in bioimpedance parameters were associated with NYHA functional class deterioration over six months. Methods: A total of 275 chronic stable HF patients confirmed by echocardiography were recruited. Body composition measurements were obtained by whole body bioelectrical impedance with multiple frequency equipment (BodyStat QuadScan 4000). We evaluated functional class using the New York Heart Association (NYHA) classification at baseline and after six months. Results: According to our results, 66 (24%) subjects exhibited functional class deterioration, while 209 improved or exhibited no change. A greater proportion of patients exhibited higher extracellular water (> 5%), and these patients developed hypervolemia, according to location on the resistance/reactance graph. A 5% decrease in resistance/height was associated with functional class deterioration with an OR of 1.42 (95% CI 1.01-2.0, p = 0.04). Conclusions: Body composition assessment through bioelectrical impedance exhibited a valuable performance as a marker of functional class deterioration in stable HF patients.

Keywords : Bioelectrical impedance analyses; Functional class deterioration; Heart failure.

        · abstract in Spanish     · text in English     · English ( pdf )