Preoperative bioelectrical impedance predicts intensive care length of stay in children following cardiac surgery.

We have previously shown that children with a bioelectrical impedance spectroscopy phase angle at 50° (PA 50°) of <2.7 on postoperative day 2 had a four-fold increase in the risk of prolonged paediatric intensive care length of stay. In this study, we demonstrate a relationship between a baseline measure of phase angle 200/5° and postoperative length of stay.