On multivariable analysis, fourriskfactors of AKI wereunder 12 months of age (OR=2.46, 95% CI = 1.37 - 4.42, p=0.003), lower body circulatory arrest during operation (OR=3.07, 95% CI = 1.04 - 9.02, p=0.042), low cardiac output syndrome (OR=2.44, 95% CI = 1.37 - 4.34, p=0.002) and post-operative bleeding (OR = 1.86, 95% CI = 1.02 - 3.37, p = 0.042).