Assessment of Extracellular Fluid Volume and Fluid Status in Hemodialysis Patients: Current Status and Technical Advances
Seminars in Dialysis, 06/15/2012
Dou Y et al. – Extracellular fluid volume (ECV) defined as the distribution space of bromide, sodium, chloride, and ferrocyanide appears to be larger than the distribution volume of inulin and sucrose, suggesting a partial distribution into the intracellular volume. Relative blood volume monitoring, measurement of inferior vena cava diameter by ultrasound and biochemical markers are indirect methods, which do not reflect the ECV and fluid status accurately. Bioimpedance spectroscopy (BIS) techniques enable assessment of ECV and intracellular volume. Currently, BIS appears to be the most practical method for assessing ECV volume and fluid status in dialysis patients.