Nazem Akoum et al examined patients with type 2 diabetes and those with moderate-to-severe CKD who were not on dialysis in order to assess the rates of subclinical arrhythmias in these patient populations. They used continuous ambulatory cardiac monitors for this purpose. Overall, for 11.2±3.9 days, 38 patients underwent ambulatory cardiac monitoring. These patients had a mean eGFR of 38±13 mL/min/1.73 m2. For any cardiac arrhythmia, the estimated overall mean rate was 88.8 episodes/person-year (PY). Episodes of atrial fibrillation occurred at a rate of 37.6/PY. Overall, a common prevalence of cardiac rhythm abnormalities was reported in patients with diabetes and moderate-to-severe CKD not needing dialysis. High rates of atrial fibrillation and asymptomatic episodes were observed in these populations.