Impact of serum sodium on heart rate variability in Dialytic chronic renal patients
Objective: to analyze the influence of serum sodium (sNa) on heart rate variability (HRV) in chronic dialytic renal patients. Methods: cross-sectional study with comparative approach with subjects undergoing maintenance hemodialysis and a control group. Resting HRV, in time (TD) and frequency domain (FD) analysis, and evaluation of biochemical markers of renal function were performed.The volunteers were allocated into three groups: normotremia dialysis group (NDG), hyponatremia dialysis group (HDG) and a control group (CG).