Acute Kidney Injury (AKI) has become a major global health care challenge with an estimated 13.3 million cases per year leading to an estimated mortality of 1.7 million deaths per year globally. Increasing prevalence of AKI is strongly associated with increased early and long term patient morbidity and mortality. According to recent meta-analysis conducted by Paweena et al the pooled incidence rate of AKI was 33.7% (95% CI, 26.9 to 41.3) and AKI-associated mortality rates was 13.8% in children (95% CI, 8.8 to 21.0) .
“0 by25” is an ambitious initiative of International Society of Nephrology which aims to eliminate preventable deaths from Acute Kidney Injury worldwide by 2025. This initiative emphasizes the magnitude of the problem, the global concern about AKI and its endeavour to eliminate mortality and morbidity due to AKI
Acute kidney injury previously called acute renal failure is characterized by a reversible increase in the blood concentration of creatinine and nitrogenous waste products and by the inability of the kidney to appropriately regulate fluid and electrolyte homeostasis . If left untreated, the condition has a high risk of multiple organ failure and potentially death.
Patients who suffer from AKI may have subsequent renal dysfunction after original injury. Children are more susceptible for this dysfunction .
For a long time there was lack of consensus on definition of AKI. In 2005, the first consensus definition of AKI for the adult population, based on the RIFLE (Risk, Injury, Failure, Loss of function, End stage renal disease) criteria, was proposed by the Acute Dialysis Quality Initiative Group (ADQI) The definition was later modified and evaluated in critically ill pediatric patients and termed pRIFLE (Pediatric RIFLE) criteria.
The pRIFLE criteria differs from RIFLE criteria, in that a) Only decrease in estimated creatinine clearance (eCrCL), and not the change in glomerular filtration rate, is used to determine grading b) The eCrCl is estimated using the Schwartz formula, which incorporates the height and serum creatinine level of the patient, and an age adjusted constant c) pRIFLE incorporates a longer duration of urine output than in adult RIFLE classification.
The spectrum and burden of AKI in developing countries may be different from that of developed countries .The patients from developing countries are younger, infection associated AKI is more common and a significant proportion may have already developed AKI at the time of hospitalization. In addition, resource limitations in managing children who require renal replacement therapy add to the burden .

