Validación de una fórmula de predicción de peso seco en relación a parámetros clínicos y bioimpedancia espectroscópica en pacientes de hemodiálisis 2017.

Abstract

The objective was to validate a dry weight prediction formula in relation to the weight determined by clinical parameters and spectroscopic bioimpedance in 2017 hemodialysis patients. Study of a non-experimental analytical type of cross-section; with a quantitative correlational research approach. 96 patients participated in renal replacement therapy on hemodialysis. Anthropometric data was scammed and a spectroscopic bioimpedance analysis was performed to determine dry weight. The information is recorded in a database in Excel and processed with JMP 5.1 software. For the validation of the dry weight formula given by anthropometric parameters the dry weight given by bioimpedance was considered as standard Gold. The intrasubject paired statistical test was performed. A dry weight prediction formula was generated with the multiple linear regression method. The age range of the subjects who participated in the study was 24 to 82 years with a greater distribution by sex for men (51%) versus women (49%). The dry weight determined by anthropometric parameters compared to the dry weight by bioimpedance showed to be different (p- <0.05), however, a proportional linear correlation was found between both weights (r2 = 0.68). No significant differences were found between the weight determined by clinical parameters and that of bioimpedance- (p = 0.003). In conclusion, the Ramírez prediction formula, when determining a dry weight different from the weight determined by bioimpedance, could not be used as a method for the determination of dry weight in patients with renal replacement therapy in hemodialysis, therefore; The hypothesis is rejected. Its use of the anthropometric formula developed in this study as an evaluation and follow-up method was recommended for patients with end-stage renal failure.