Rodrigo Castaño

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Curative resection of pancreatic and biliary malignancies is rare. Most tumors are inoperable at presentation, and palliation of jaundice often is the goal. Biliary decompression can be achieved by surgical diversion or endoscopic biliary stents. This study aimed to compare clinical outcomes between surgical bypass and endoscopic uncovered nitinol stents in(More)
BACKGROUND Pyoderma gangrenosum is a rare inflammatory disease of unknown etiology and a poorly understood pathogenesis. Its clinical presentation is variable and a large percentage of cases are associated with inflammatory bowel diseases. Peristomal pyoderma gangrenosum represents a variant of the diseases, occurring in patients with colostomy. Multiple(More)
Verification techniques and software model checking in particular have gained considerable traction in industry, especially after a number of high-profile success stories tackling specific problems. However, widespread adoption remains distant and, among other causes, one obstacle is the huge number of systems that software model checkers cannot fully(More)
1 Gastrointestinal Surgeon and Endoscopist, Chief of the Graduate General Surgery Program at Universidad Pontificia Bolivariana, Member of the Gastrohepatology group at the Universidad de Antioquia and the Instituto de Cancerología Clínica las Américas in Medellín, Colombia rcastanoll@hotmail.com 2 Radiologist, Internist and Gastroenterologist, Professor at(More)
Software Model Checkers have shown outstanding performance improvements in recent times. Moreover, for specific use cases, formal verification techniques have shown to be highly effective, leading to a number of high-profile success stories. However, widespread adoption remains unlikely in the short term and one of the remaining obstacles in that direction(More)
Accepted: 12-08-09 Summary Background: Biliary stent clogging is the principal limitation in the use of palliative treatments for malignant biliary stricture. The patency of metal stents lasts longer than that of plastic stents but metal stents are more expensive. Well-established criteria for choosing metal or plastic stents do not yet exist Patients and(More)
1 Gastrointestinal Surgery and Endoscopy. Chief of Postgraduate General Surgery (UPB), Gastrohepatology Group at the University of Antioquia, Institute of Clinical Oncology of the Americas in Medellin, Colombia. rcastanoll@ hotmail.com 2 Gastroenterologist at Texas Valley Coastal Bend Veterans Administration Hospital and Clinical Assistant Professor at the(More)
1 Gastrointestinal Surgeon and Endoscopist, Chief of the Graduate General Surgery Program at Universidad Pontificia Bolivariana, Member of the Gastrohepatology group at the Universidad de Antioquia and the Instituto de Cancerología Clínica las Américas in Medellín, Colombia rcastanoll@hotmail.com 2 Radiologist, Internist and Gastroenterologist, Professor at(More)