Interventions
PD
During the control period, the RRT modality was selected from PD and CVVH according to standard unit practice, and NIDUS was used during the intervention period, unless the responsible clinician decided otherwise. One control infant receiving extracorporeal membrane oxygenation (ECMO) had a hemodialysis filter inserted into that circuit to provide RRT. There was no blinding. The study had ethical approval (Tyne and Wear South Research Ethics Committee, reference: 16/NE/0008).