Intensive Care Units, PediatricIntensive Care UnitsIntensive CareIntensive Care Units, NeonatalCritical IllnessCritical CareInfant, NewbornIntensive Care, NeonatalRespiration, ArtificialDeathLength of StayTracheitisBereavementCross InfectionHospitals, PediatricProspective StudiesHospital MortalityRetrospective StudiesProfessional-Family RelationsPediatric NursingPatient AdmissionConscious SedationTomography Scanners, X-Ray ComputedDisease AttributesRespiratory InsufficiencyVisitors to PatientsPediatricsMonitoring, PhysiologicHospitals, UniversityLife Support CareWithholding TreatmentDiagnostic EquipmentIntubation, IntratrachealVentilator WeaningSeverity of Illness IndexTransition to Adult CareTreatment OutcomeTerminal CareGriefIntubation, GastrointestinalPneumonia, Ventilator-AssociatedParentsShock, SepticTime FactorsRisk AdjustmentHospital Bed CapacityOutcome Assessment (Health Care)Risk FactorsSepsisMultiple Organ FailureChild MortalityCatheterization, Central VenousHospital UnitsHypnotics and SedativesInfection ControlIncidenceCohort StudiesClinical ProtocolsPoint-of-Care SystemsBrazilAirway ObstructionHigh-Frequency Ventilation