“…1,2 In the past, causes of AKI have been classified as being of prerenal, intra-renal and post-renal origin. 3,4 Risk factors such as pre-existing chronic kidney disease (CKD), diabetes mellitus, arterial hypertension, genetic factors as well as modifying factors such as severity, duration and frequency of renal injury increase the likelihood for the occurrence of AKI and its progression to acute (<90 days) kidney disease (AKD) and CKD respectively. 3,4 Risk factors such as pre-existing chronic kidney disease (CKD), diabetes mellitus, arterial hypertension, genetic factors as well as modifying factors such as severity, duration and frequency of renal injury increase the likelihood for the occurrence of AKI and its progression to acute (<90 days) kidney disease (AKD) and CKD respectively.…”