| Revista: | Acta cirurgica brasileira |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000286361 |
| ISSN: | 0102-8650 |
| Autores: | Cruz-Junior, Ruy Jorge1 Correia, Cristiano de Jesus Figueiredo, Luiz Francisco Poli de Silva, Mauricio Rocha e |
| Instituciones: | 1Universidade de Sao Paulo, Faculdade de Medicina, Sao Paulo. Brasil |
| Año: | 2004 |
| Periodo: | Jul-Ago |
| Volumen: | 19 |
| Número: | 4 |
| Paginación: | 383-392 |
| País: | Brasil |
| Idioma: | Portugués |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental |
| Resumen en inglés | Intestinal transplantation is an acceptable therapy for children and adults with short bowel syndrome. The great majority of large animal experimental models of intestinal transplantation are complex and take a lot of time to be performed. In this study, we developed an alternative model of intestinal autotransplantation and evaluate the initial impact of isolated hypothermic intestinal perfusion with Ringers lactate solution on hemodynamic and metabolic parameters. METHODS: Six pentobarbital anesthetized mongrel dogs were used in this study (22,8±1,4 Kg). Systemic hemodynamic were evaluated through a Swan-Ganz and arterial catheters; while gastrointestinal tract perfusion by superior mesenteric vein blood flow (SMVBF, ultrasonic flowprobe) and intestinal mucosal pCO2 (pCO2-int and pCO2-gap, gas tonometry). Initially, the proximal jejunum and distal ileum were transected; at the basis of the mesentery excepting the superior mesenteric artery and vein. The small bowel was then perfused in situ with cold (4ºC) Ringers lactate solution for 30 minutes, with an automatic pump. The animals where observed for 120 minutes after reperfusion. Blood samples were collected from thoracic aorta for gas blood analysis. RESULTS: Hypothermic intestinal perfusion induced a partial reduction on SMVBF, only in the first 30 min of reperfusion (398±102,8 to 587±70,9 ml/min) and an increase on pCO2-gap (2±2,7 to 29,8±6 mmHg). During the experimental protocol, we did not observe significant alterations on systemic hemodynamic or metabolic parameters (MAP, CO, pH, base excess and hemoglobin levels) as well as on central core temperature. CONCLUSION: The model of intestinal transplantation is very useful to test different preservation solutions and/or antioxidants drugs, which are often used in clinical small bowel transplantation |
| Resumen en portugués | assim como na temperatura central. CONCLUSÃO: O modelo de autotransplante intestinal é extremamente útil e de fácil execução, para a avaliação inicial de soluções de preservação e/ou drogas antioxidantes, comumente utilizadas no transplante de intestino |
| Disciplinas: | Medicina |
| Palabras clave: | Cirugía, Gastroenterología, Medicina experimental, Trasplantes, Intestinos, Tonometria, Perfusión, Preservación, Hemodinámica, Modelos experimentales |
| Keyword: | Medicine, Experimental medicine, Gastroenterology, Surgery, Small bowel, Transplantation, Tonometry, Perfusion, Preservation, Hemodynamics, Experimental models |
| Texto completo: | Texto completo (Ver HTML) |
