Acute kidney injury (AKI) constitutes a serious public health problem because of its very high cost and mortality rate, with
an increasing incidence, phenomenon which is explained by the increasingly number of older patients suffering from several
comorbidities admitted in the intensive care units. Despite the new AKI definition and classification, the use of novel AKI
biomarkers and modern technologies, as an attempt to achieve an early AKI detection and treatment, and consequently to
better clinical outcomes, AKI mortality particularly in ICU patients remains persistently high. In the present article, the
currently accepted concepts regarding dose and time of hemodialysis and peritoneal dialysis prescription in AKI patients
have been reviewed.