Anastomotic LeakAnastomosis, SurgicalEsophagectomyEsophageal DiseasesSurgical StaplingSuture TechniquesSurgical Wound DehiscenceDigestive System Surgical ProceduresEsophageal AtresiaColectomyPostoperative ComplicationsSurgical StaplersEsophagusRadiationEsophagoplastyColostomyEsophageal NeoplasmsRectumColonic DiseasesColon, SigmoidPlasticsEsophageal StenosisColorectal SurgeryTreatment OutcomeEsophagoscopySigmoid DiseasesRetrospective StudiesIleostomyStomachLaparoscopyReoperationPancreaticoduodenectomyLaparotomyGastric BypassGastrectomyLength of StayRectal NeoplasmsCapillary Leak SyndromeProspective StudiesTime FactorsFollow-Up StudiesRisk FactorsColonSurgical Wound InfectionPredictive Value of TestsSurvival RateAdenocarcinomaStentsPrognosisMultivariate AnalysisLogistic ModelsCerebrospinal Fluid RhinorrheaCohort StudiesRegression Analysis