En general, estas infecciones estan relacionadas con procedimientos asistenciales invasivos. Based on the data from the envinuci study, the rates and etiology of the main nosocomial infections, such as ventilatorassociated pneumonia. For this reason, the epidemiology and impact of these infections on critical patients must be known. Nosocomial infections affect 5% of inpatients, and carry a high morbidity, mortality and economic cost. Infecciones intrahospitalarias infecciones nosocomiales 1. Descriptive study conducted on 32 patients diagnosed with nosocomial infection in the pediatric intensive care unit of the vicente. Urologia practica 2011 infeccion urinaria complicada. Nosocomial infections are one of the most important problems occurring in intensive care units. Nosocomial infections in the picu remain a significant source of morbidity and mortality. Aportaciones originales 1 infecciones urinarias 2 1 3.