COMPOSIÇÃO CORPORAL DE PACIENTES COM DOENÇA RENAL CRÔNICA EM TRATAMENTO CONSERVADOR

Introduction: Chronic Kidney Disease (CKD) is characterized by the presence of lesions in the renal parenchyma and progressive and irreversible loss of kidney function. Nutritional status is an important predictor of prognosis in CKD, including pre-dialysis phase, which underscores the importance of studies addressing the assessment of body composition in this population. Aim : To assess the body composition in CKD patients, and the association between phase angle and other nutritional parameters used in clinical practice. Methods: A prospective observational study conducted at the Clinic of Nephrology of the Federal University of Parana, between April and July of 2011. It included patients with CKD and the nutritional status was assessed by anthropometry, subjective global assessment (SGA) and bioelectrical impedance analysis. Results: A total of 32 patients were evaluated. There was significant and positive correlation between the phase angle and skeletal mass index (r=0.4541 e p=0.009; r=0,5064 e p=0,003). The phase angle was significantly lower in malnourished patients classified by SGA(p=0,01). There was a positive and significant correlation between the waist circumference and the C-reactive protein (r=0.4053 e p=0.0262). Conclusion: in this study, it was found, according to anthropometric measurements, patients with overweight, obesity and high body fat. The phase angle seems to identify body composition changes that precede changes of the anthropometric parameters. The SGA is a good tool for nutritional assessment in this population.