Colorectal SurgeryRectumRectal DiseasesColectomyColorectal NeoplasmsColonic DiseasesDigestive System Surgical ProceduresAnastomotic LeakPremedicationSurgical Procedures, ElectiveColonLaparoscopyHand-Assisted LaparoscopySurgical Wound InfectionPostoperative ComplicationsSurgical SpongesCatharticsPerioperative CareCefotetanAnastomosis, SurgicalPreoperative CareEmbalmingPostoperative CareInfusions, IntralesionalTreatment OutcomeLength of StayRectal NeoplasmsProspective StudiesIntraoperative CareLearning CurveDiverticulitisIleusIntraoperative PeriodRoboticsPostoperative PeriodSurgical StaplingAdenomaRetrospective StudiesTime FactorsAntibiotic ProphylaxisBipolar DisorderFluid TherapyIntraoperative ComplicationsMetronidazoleRisk FactorsColonoscopyMental DisordersFollow-Up StudiesAnxiety DisordersMood DisordersColorectal Neoplasms, Hereditary NonpolyposisRecovery of FunctionPain, PostoperativeClinical CompetenceColonic PolypsDouble-Blind MethodStatistics, NonparametricColonic NeoplasmsAdenocarcinomaChi-Square DistributionDiagnostic and Statistical Manual of Mental DisordersBariatric SurgeryPrognosisSigmoidoscopyGeneral SurgeryCase-Control StudiesAdenomatous PolypsNeoplasm StagingDepressive Disorder, MajorFluorouracil