Cardiovascular Surgical ProceduresSurgical Procedures, OperativeGeneral SurgeryPostoperative ComplicationsTreatment OutcomeSurgical Procedures, MinorOrthopedicsRetrospective StudiesVascular Surgical ProceduresSurgical Procedures, Minimally InvasiveAmbulatory Surgical ProceduresSpecialties, SurgicalSurgical Procedures, ElectiveOral Surgical ProceduresCardiac Surgical ProceduresReconstructive Surgical ProceduresGynecologic Surgical ProceduresDigestive System Surgical ProceduresLaparoscopyThoracic Surgical ProceduresTime FactorsThoracic SurgeryOperating RoomsUrologic Surgical ProceduresOtorhinolaryngologic Surgical ProceduresOphthalmologic Surgical ProceduresIntraoperative ComplicationsOrthopedic ProceduresPreoperative CareFollow-Up StudiesReoperationObstetric Surgical ProceduresProspective Studies