The investigators will review in a retrospective way, all patients aged between 0 and 16 years, admitted in the PICU after cardiac surgery on CPB from 01.01.2014 to 31.12.2016. They will asses for AKI. The first step is to determine the incidence and severity, the second step is to determine the risk factors for AKI and/or protecting factors.
The purpose of this retrospective study is to determine the incidence and severity of acute kidney injuries (AKI) after heart surgery on cardiopulmonary bypass (CPB) in the pediatric intensive care unit (PICU) in Lausanne, Switzerland.