Intestinal ObstructionAirway ObstructionUreteral ObstructionInflammatory Bowel DiseasesIrritable Bowel SyndromeDuodenal ObstructionUrinary Bladder Neck ObstructionUrethral ObstructionNasal ObstructionGastric Outlet ObstructionVentricular Outflow ObstructionLacrimal Duct ObstructionShort Bowel SyndromeCrohn DiseaseColitis, UlcerativeColonic DiseasesCholestasisHydronephrosisCholestasis, ExtrahepaticBezoarsIntestinal DiseasesConstipationLung Diseases, ObstructiveIleal DiseasesTreatment OutcomeConstriction, PathologicDefecationJejunal DiseasesIntestine, LargeForced Expiratory VolumeAbdominal PainColonIntestinal AtresiaDigestive System Surgical ProceduresNasolacrimal DuctIntestinal PerforationIleusSpirometryIntussusceptionIntestinal MucosaTomography, X-Ray ComputedKidney PelvisDiatrizoate MeglumineLaparotomyPostoperative ComplicationsIntestinal NeoplasmsVital CapacityTissue AdhesionsRespiratory Function TestsRetrospective StudiesBronchial DiseasesIleumGastrointestinal AgentsAirway ResistanceUreterIntestinesStentsGastrointestinal TransitCapsule EndoscopyNeurogenic BowelGastrointestinal MotilityRectumEndoscopySuperior Vena Cava SyndromeIleal NeoplasmsCardiomyopathy, HypertrophicColonoscopyLaryngeal DiseasesDuodenal DiseasesJejunumPalliative CareBarium SulfateIntestinal FistulaFollow-Up StudiesTracheal StenosisTime FactorsEnemaProspective StudiesAsthmaJaundice, ObstructiveAnastomosis, SurgicalColitisTracheal DiseasesPulmonary Disease, Chronic ObstructiveLaparoscopyIntestinal Pseudo-ObstructionIleostomyIntubation, GastrointestinalEndoscopy, GastrointestinalColectomySigmoid DiseasesCommon Bile DuctHernia, AbdominalDiverticulumColon, SigmoidMeckel DiverticulumBronchitisRetroperitoneal FibrosisIntestine, SmallCatheterization