Objectives: Liver transplantation is the treatment of choice for acute and chronic liver failure, for selected cases of tumors, and for conditions resulting from errors in metabolism. This paper reports the experience of a medical center in Latin America.Methods: Were conducted 305 orthotopic liver transplantations on 284 patients between 2004 and 2010. Of these patients, 241 were adults undergoing their first transplantation.Results: The average age of patients was 52 years old, and 62% of the individuals were male. The most common indication was alcoholic cirrhosis. The rate of patient survival after 1 and 5 years was 82 and 72% respectively. The rate of liver graft survival after 1 and 5 years was 78 and 68% respectively. The main cause of death was sepsis. Complications in the hepatic artery were documented for 5% of the patients. Additionally, 14.5% of the patients had complications in the biliary tract. Infections were found in 41% of the individuals. Acute rejection was observed in 30% of the subjects, and chronic rejection in 3%. Conclusion: In conclusion, liver transplantation at our medical center in Colombia offers good mid-term results, with a complication rate similar to that reported by other centers around the world.

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Introducción: la enfermedad de Wilson es una enfermedad heterogénea causada por mutaciones en el gen ATP7B. La presentación clínica es variable, en fenotipos hepáticos y neuropsiquiátricos. El objetivo de este estudio es describir una cohorte retrospectiva de pacientes. Materiales y métodos: estudio retrospectivo descriptivo de pacientes atendidos en el Hospital Pablo Tobón Uribe desde enero de 2004 a septiembre de 2017. Resultados: se reportaron 27 pacientes, 17 hombres y 10 mujeres. El tiempo de seguimiento medio fue de 2,18 años, el 40 % presentó síntomas neurológicos; el 29 %, psiquiátricos; y el 85 %, alteración hepática. En el laboratorio, el 85 % presentó ceruloplasmina baja; 55 %, cobre urinario alto; en casos con biopsia hepática, 7 tenían depósito de cobre en coloraciones especiales. En neuroimágenes, el 84 % presentó hallazgos sugestivos de enfermedad de Wilson y en 3 casos se documentó una mutación genética patogénica. Durante el seguimiento, el 51 % mejoró clínica o bioquímicamente, el 11 % se mantuvo estable y el 18 % se deterioró. El 88 % de los casos sobrevivió al final del seguimiento. Conclusiones: este estudio es la cohorte retrospectiva más grande de Colombia. Los resultados son base para nuevos estudios poblacionales buscando de manera activa la enfermedad para documentarla en su fase preclínica y, de este modo, impactar en el pronóstico.

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PurposeConventional prostheses used for inguinal hernia repair are static and passive. This feasibility-study shows the features of a new 3D tension-free prosthesis in an experimental model.MethodsThis study was divided into two-phases: 1) aimed to test the physics intrinsic features and the anatomical adaptability of a new 3D designed mesh, and 2) aimed to evaluate the inflammatory reaction associated with different materials used. On phase-1 implantations were performed in pigs. During the first trial phase, the prostheses were also implanted on human cadavers. On phase-2, implantation was carried out on large swine. Follow-up was of 60-days, after which the animals were anaesthetized for laparoscopic assessment, and for sample collection of mesh implantation site for histological analysis.ResultsAll animals showed good 3D mesh tolerance, and the follow-up period was uneventful. The laparoscopy showed no inflammatory lesions on the internal surface of the peritoneum. Macroscopic observation of implantation site revealed some local fibrosis and reorganization of tissue, no signs of infection, and no changes on original implant positioning. Histological analysis on phase-1 showed in most sample segments the deferent duct maintaining its central position and surrounded by vascular and nervous structures. On phase-2 differences in inflammatory lesion score could be found between subjects.ConclusionsThis new 3D mesh can be placed appropriately and from this preliminary animal study no untoward complications were noted over a 60 day period.