Document Detail


Bioelectrical impedance and strength measurements in patients with heart failure: comparison with functional class.
MedLine Citation:
PMID:  17483008     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: Patients with chronic heart failure (HF) develop important changes in body composition. Nevertheless, the usual methods of body composition assessment can be misleading in patients with HF because tissue hydration is altered. Bioelectrical impedance vector analysis (BIVA) works without making any assumption about constant soft tissue hydration. In this study, patients with HF and systolic dysfunction (HFS) and preserved systolic function (HFPSF) underwent a body composition evaluation by the BIVA method; the comparison was done between New York Heart Association (NYHA) functional classes I-II and III-IV. METHODS: We studied 243 patients with HF, 140 (101 in NYHA I-II and 39 in III-IV) with HFS and 103 (67 in NYHA I-II and 36 in II-IV) with HFPSF. Whole-body bioelectrical impedance was measured using BodyStat QuadScan 4000, which is tetrapolar and multiple-frequency equipment. RESULTS: In both HF categories, reactance and phase angle were significantly lower, the impedance ratio of 200 kHz to that at 5 kHz was higher, and had significantly shorter and downsloping impedance vector in the NYHA III-IV group compared with the NYHA I-II group by gender. CONCLUSION: Bioelectrical impedance analysis allows an easier evaluation of body composition and this might be particularly useful to stratify the severity of HF.
Authors:
Lilia Castillo Martínez; Eloisa Colín Ramírez; Arturo Orea Tejeda; Enrique Asensio Lafuente; Laura Paola Bernal Rosales; Verónica Rebollar González; René Narváez David; Joel Dorantes García
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Nutrition (Burbank, Los Angeles County, Calif.)     Volume:  23     ISSN:  0899-9007     ISO Abbreviation:  Nutrition     Publication Date:  2007 May 
Date Detail:
Created Date:  2007-05-07     Completed Date:  2007-07-09     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8802712     Medline TA:  Nutrition     Country:  United States    
Other Details:
Languages:  eng     Pagination:  412-8     Citation Subset:  IM    
Affiliation:
Heart Failure Clinic and Cardiology Department, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.
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MeSH Terms
Descriptor/Qualifier:
Aged
Body Composition / physiology*
Body Water / metabolism*
Electric Impedance*
Female
Hand Strength
Heart Failure / classification,  metabolism,  physiopathology*
Humans
Male
Middle Aged
Severity of Illness Index

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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