Nutritional Assessments by Bioimpedance Technique in Dialysis Patients.
Nutrients
; 16(1)2023 Dec 20.
Article
in En
| MEDLINE
| ID: mdl-38201845
ABSTRACT
Bioelectrical impedance analysis (BIA) has been extensively applied in nutritional assessments on the general population, and it is recommended in establishing the diagnosis of malnutrition and sarcopenia. The bioimpedance technique has become a promising modality through which to measure the whole-body composition in dialysis patients, where the presence of subclinical volume overload and sarcopenic obesity may be overlooked by assessing body weight alone. In the past two decades, bioimpedance devices have evolved from applying a single frequency to a range of frequencies (bioimpedance spectroscopy, BIS), in which the latter is incorporated with a three-compartment model that allows for the simultaneous measurement of the volume of overhydration, adipose tissue mass (ATM), and lean tissue mass (LTM). However, clinicians should be aware of common potential limitations, such as the adoption of population-specific prediction equations in some BIA devices. Inherent prediction error does exist in the bioimpedance technique, but the extent to which this error becomes clinically significant remains to be determined. Importantly, reduction in LTM has been associated with increased risk of frailty, hospitalization, and mortality in dialysis patients, whereas the prognostic value of ATM remains debatable. Further studies are needed to determine whether modifications of bioimpedance-derived body composition parameters through nutrition intervention can result in clinical benefits.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Nutrition Assessment
/
Renal Dialysis
Type of study:
Prognostic_studies
Limits:
Humans
Language:
En
Journal:
Nutrients
Year:
2023
Document type:
Article
Affiliation country:
Country of publication: