Impact of diffusion, ultrafiltration, and posture on total body electrical resistance in patients on hemodialysis.

Monitoring of hydration in patients on hemodialysis (HD) by currently available bioelectrical impedance analysis (BIA) methods is hampered by limited accuracy. This may be caused by changes in total body electrical resistance (TBER) that are induced by processes other than ultrafiltration (UF). To identify these sources of error, we examined the impact of UF, diffusion, and postural change (PC), separately.

Stent placement in patients with atherosclerotic renal artery stenosis and impaired renal function: a randomized trial.

Background: Little is known about the efficacy and safety of renal artery stenting in patients with atherosclerotic renal artery stenosis (ARAS) and impaired renal function.

Objective: To determine the efficacy and safety of stent placement in patients with ARAS and impaired renal function.

Design: Randomized clinical trial.