Perioperative CarePreoperative CarePerioperative PeriodPreoperative PeriodPostoperative ComplicationsIntraoperative ComplicationsTreatment OutcomeRetrospective StudiesSurgical Procedures, OperativeIntraoperative CareIntraoperative PeriodSurgical Procedures, ElectivePostoperative PeriodProspective StudiesPostoperative CareBlood Loss, SurgicalTime FactorsVascular Surgical ProceduresFollow-Up StudiesAnesthesiaCardiac Surgical ProceduresRisk FactorsPerioperative NursingAnesthesia, GeneralRisk AssessmentCoronary Artery BypassLength of StayEndarterectomy, CarotidMonitoring, IntraoperativeReoperationCardiopulmonary BypassRectal NeoplasmsPremedicationPredictive Value of TestsSurgical Wound InfectionBlood TransfusionPostoperative HemorrhagePain, PostoperativeAortic Aneurysm, AbdominalLaparoscopyTomography, X-Ray ComputedHepatectomyBlood Vessel Prosthesis ImplantationPrognosisNeoadjuvant TherapyAnesthesia, ConductionSurvival RateChi-Square DistributionPatient SelectionCombined Modality TherapyLogistic ModelsHospital MortalityNeoplasm StagingDigestive System Surgical ProceduresCarotid StenosisArthroplasty, Replacement, KneeEsophagectomyPancreaticoduodenectomyAnesthesiologySurvival AnalysisMultivariate AnalysisBlood Vessel ProsthesisSurgical Procedures, Minimally InvasiveKaplan-Meier EstimatePneumonectomyNeurosurgical ProceduresHeart DiseasesPreanesthetic MedicationBlood Transfusion, AutologousAdenocarcinomaSurgery, Computer-AssistedColectomyArthroplasty, Replacement, HipAnastomosis, SurgicalLiver TransplantationErythrocyte TransfusionOrthopedic ProceduresCardiovascular Surgical ProceduresProstatectomyIncidenceSpinal FusionHemostasis, SurgicalEndarterectomyVascular PatencyThoracic Surgical ProceduresNeoplasm Recurrence, LocalThoracotomyRecovery of FunctionMagnetic Resonance ImagingCohort StudiesAmbulatory Surgical ProceduresGynecologic Surgical ProceduresPancreatectomyCholecystectomy, LaparoscopicChemotherapy, AdjuvantFeasibility StudiesAngioplastyEndovascular ProceduresSensitivity and SpecificityHemodynamics