IleusIntestinal Pseudo-ObstructionIntestinal ObstructionGastrointestinal MotilityPostoperative ComplicationsGastrointestinal TransitLaparotomyDihydroergotamineCisaprideColonic Pseudo-ObstructionChewing GumSerotonin 5-HT4 Receptor AgonistsDigestive System Surgical ProceduresMedicine, East Asian TraditionalColectomyEnterostomyGastrointestinal AgentsIntestine, SmallNeutrophil InfiltrationColonLaparoscopyLength of StayMeconiumMuscle, SmoothPiperidines