DiverticulitisDiverticulitis, ColonicColon, SigmoidSigmoid DiseasesPain MeasurementDiverticulum, ColonPainIntestinal PerforationPain ThresholdPain, PostoperativeDiverticulosis, ColonicDiverticulumColectomyPain ManagementColonic DiseasesJejunal DiseasesColostomyAnalgesics, OpioidAnalgesiaAnalgesia, EpiduralAnalgesia, Patient-ControlledAbdominal PainUrinary Bladder FistulaBarium SulfateAnesthetics, LocalMorphineAppendicitisChronic PainEnemaTreatment OutcomeIntestinal FistulaDigestive System Surgical ProceduresDouble-Blind MethodSurgical Procedures, ElectiveAppendixAnastomosis, SurgicalWatchful WaitingLaparoscopyMeckel DiverticulumPeritonitisPneumoperitoneumPeritoneal LavageLow Back PainBack PainCecal DiseasesIntestinal ObstructionProspective StudiesAbdomen, AcuteTomography, X-Ray ComputedColonoscopyNeck PainPain, IntractableAcute DiseaseGastrointestinal HemorrhagePelvic PainPain PerceptionRecurrenceColonAbdominal AbscessAnastomotic LeakFacial PainLaparotomyTherapeutic IrrigationAcute PainFistulaRetrospective StudiesForeign-Body ReactionPain, ReferredAbscess