Preoperative CarePreoperative PeriodPostoperative ComplicationsTreatment OutcomeRetrospective StudiesPostoperative PeriodRectal NeoplasmsProspective StudiesFollow-Up StudiesTomography, X-Ray ComputedPostoperative CarePredictive Value of TestsNeoadjuvant TherapyIntraoperative CareSurgical Procedures, ElectiveTime FactorsNeoplasm StagingPrognosisIntraoperative PeriodCombined Modality TherapyCardiac Surgical ProceduresSurgical Procedures, OperativeIntraoperative ComplicationsRisk FactorsMagnetic Resonance ImagingPremedicationReoperationPerioperative CareAdenocarcinomaCoronary Artery BypassRisk AssessmentNeurosurgical ProceduresSurgery, Computer-AssistedSensitivity and SpecificityBlood Loss, SurgicalSurvival RatePain, PostoperativeHepatectomyProstatectomyDigestive System Surgical ProceduresVascular Surgical ProceduresLength of StayPancreaticoduodenectomyNeoplasm Recurrence, LocalLaparoscopyChi-Square DistributionArthroplasty, Replacement, KneeRecovery of FunctionRadiotherapy, AdjuvantCardiopulmonary BypassOsteotomyEsophagectomyLymphatic MetastasisSurvival AnalysisPatient SelectionSurgical Wound InfectionSpinal FusionMonitoring, IntraoperativeEndosonographyDecompression, SurgicalEsophageal NeoplasmsRange of Motion, ArticularMultivariate AnalysisLogistic ModelsScoliosisArthroplasty, Replacement, HipChemotherapy, AdjuvantKaplan-Meier EstimateVisual AcuityOrthopedic ProceduresPneumonectomyKeratomileusis, Laser In SituPerioperative PeriodAortic Aneurysm, AbdominalBiopsy, NeedleAngiographyAnesthesiaCarcinoembryonic AntigenOphthalmologic Surgical ProceduresLiver NeoplasmsSeverity of Illness IndexAmbulatory Surgical ProceduresSurgical Procedures, Minimally InvasiveFluorouracilDisease-Free SurvivalThoracic VertebraeBlood Transfusion, AutologousPain MeasurementDrainageCataract ExtractionCholecystectomy, LaparoscopicBlood Vessel Prosthesis ImplantationRectumPhacoemulsificationLumbar VertebraeNeuronavigationPreanesthetic MedicationColectomyEndoscopyPostoperative Hemorrhage