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Nutrición Hospitalaria

versión On-line ISSN 1699-5198versión impresa ISSN 0212-1611

Resumen

LIMA E SILVA, Renata Reis de; PINHO, Cláudia Porto Sabino; GALVAO RODRIGUES, Isa  y  MONTEIRO JUNIOR, José Gildo de Moura. Phase angle as an indicator of nutritional status and prognosis in critically ill patients. Nutr. Hosp. [online]. 2015, vol.31, n.3, pp.1278-1285. ISSN 1699-5198.  http://dx.doi.org/10.3305/nh.2015.31.3.8014.

Introduction: The phase angle (PA) has been considered a sensitive tool to assess nutritional status and effectiveness of interventions dietetics. Objective: To evaluate the PA as an indicator of nutritional status and prognosis in critically ill patients. Methods: Prospective observational study of patients admitted to the Coronary Intensive Care Unit between May and October 2013. The PA was determined by bioelectrical impedance analysis, PA was considered low below 5o values for men and 4.6o for women. The values obtained were related to other evaluation parameters of nutritional status: anthropometric (arm circumference - AC , triceps skinfold thickness - TST , corrected arm muscle area - AMAc and calf circumference - CC) and biochemical (total lymphocyte count, hemoglobin, hematocrit), in addition to clinical prognostic APACHE II (Acute Physiology and Chronic Health Disease Classification System II) and serum albumin. The tabulation and analysis were performed using SPSS version 13.0. Results: The sample consisted of 110 patients, in which an association was found between low AF and renal failure on dialysis (p < 0.001), % adequacy AC (p = 0.028), % adequacy of TST (p = 0.043), albumin level (p = 0.042), anemia (p = 0.040) and APACHE II (p = 0.012) scores. The AF was positively correlated with CC (p= 0.043) and inversely with the length of hospitalization (p = 0.006). Conclusions: PA in the ICU may be useful to identify early and malnourished patients as a prognostic indicator.

Palabras clave : Nutritional assessment; Intensive Care Units; Critical care; Electrical impedance.

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