Bioelectric impedance vector distribution in peritoneal dialysis patients with different hydration status

摘要

Bioelectric impedance vector distribution in peritoneal dialysis patients with different hydration status.BackgroundIn continuous ambulatory peritoneal dialysis (CAPD), total body water (TBW) is estimated by functions of body weight, and by equations of bioelectric impedance analysis (BIA). These procedures may be biased with abnormal tissue hydration. We validated vector BIA (BIVA) patterns of hydration in CAPD patients, based on direct measurements of resistance (R) and reactance (Xc) (RXc graph) without knowledge of the body weight.