The Full Form of SLED is Sustained low-efficiency dialysis.

Sustained low-efficiency dialysis (SLED) is an intermittent hybrid renal replacement modality in between conventional intermittent haemodialysis (IHD) and continuous renal replacement therapy (CRRT).1 The superiority of continuous techniques compared to conventional intermittent techniques with regard to haemodynamic tolerance in critically ill patients has not been demonstrated,2,3 meaning that the choice of modality depends on the availability thereof and on the experience of the doctor the prescribe the modality of treatment. However, the clinical experience is that approximately two-thirds of IHD sessions in critically ill patients are not well tolerated,4 requiring the use of continuous techniques.