Pancreatic FistulaFistulaPancreaticojejunostomyPancreaticoduodenectomyPancreatectomyCutaneous FistulaArteriovenous FistulaGastric FistulaIntestinal FistulaBiliary FistulaPancreatic DuctsBronchial FistulaVascular FistulaRectal FistulaDrainageUrinary FistulaSurgical StaplingPancreatic DiseasesEsophageal FistulaPancreasGastrostomyRectovaginal FistulaPostoperative ComplicationsPancreatic PseudocystVesicovaginal FistulaRespiratory Tract FistulaVaginal FistulaSuture TechniquesTracheoesophageal FistulaJejunostomyPancreatic NeoplasmsPancreatic JuiceOctreotideTreatment OutcomeUrinary Bladder FistulaAmylasesCyst FluidArterio-Arterial FistulaAnastomosis, SurgicalEndoscopyArteriovenous Shunt, SurgicalAnastomosis, Roux-en-YCarotid-Cavernous Sinus FistulaRetrospective StudiesSplenectomyGastrectomyPancreatitis, ChronicLength of StayReoperationSecretinSurgical Procedures, ElectiveCholangiopancreatography, Endoscopic RetrogradeDigestive System FistulaCentral Nervous System Vascular MalformationsTomography, X-Ray Computed