Abstract Background and Aims Patients with end-stage renal disease (ESRD) on chronic haemodialysis are at an elevated risk of arrhythmias that can increase the sudden cardiac death (SCD) stroke, along need for hospitalisation interventions. These may be exacerbated by pre-dialysis hyperkalaemia rapid serum potassium (sK+) shifts occur during after sessions. The DIALIZE study (NCT03303521) demon...