Intraoperative ComplicationsBlood TransfusionIntraoperative CarePostoperative ComplicationsLaparoscopyIntraoperative PeriodPhacoemulsificationErythrocyte TransfusionMonitoring, IntraoperativeTreatment OutcomeUreteroscopesLens DiseasesOperative TimeRetrospective StudiesPlatelet TransfusionBlood Loss, SurgicalLithotripsy, LaserUreteroscopyUmbilicusCataract ExtractionLens Implantation, IntraocularExchange Transfusion, Whole BloodRoboticsBlood Transfusion, AutologousNatural Orifice Endoscopic SurgeryLearning CurveLaparoscopesCholecystectomy, LaparoscopicBlood Component TransfusionSurgical Procedures, Minimally InvasiveSurgical StaplingProspective StudiesUrologic Surgical ProceduresFollow-Up StudiesLength of StayPneumoperitoneum, ArtificialHernia, InguinalTime FactorsBlood Transfusion, IntrauterineAnastomosis, SurgicalVisual AcuityReoperationDigestive System Surgical ProceduresSuture TechniquesLaparotomyNephrectomyFeasibility StudiesFetofetal TransfusionCataractRisk FactorsEquipment DesignPostoperative HemorrhageBlood Grouping and CrossmatchingLeukocyte TransfusionBlood BanksPreoperative CareBlood DonorsOperative Blood SalvageFrozen SectionsBlood PreservationNeuronavigationAnemiaBlood Group IncompatibilityPostoperative CareHemoglobinsPerioperative CareHemorrhageHemostasis, SurgicalSurgery, Computer-AssistedAnemia, NeonatalErythroblastosis, FetalCardiopulmonary BypassNeurosurgical ProceduresIntraoperative AwarenessPlateletpheresisAntifibrinolytic AgentsTranexamic AcidCardiac Surgical ProceduresSurgical Procedures, OperativeAnesthesia, GeneralTomography, X-Ray ComputedIsoantibodiesHemostaticsSurgical Procedures, ElectiveRisk AssessmentPostoperative PeriodSurgical Wound InfectionInfant, NewbornDiabetes ComplicationsThrombocytopeniaHepatectomyLiver TransplantationPlatelet CountBlood SubstitutesIncidenceHemodilutionPregnancy ComplicationsAnemia, Sickle CellEndoscopyPregnancy