摘要
To provide experimental model for abdominal aortic aneurysm research and to optimize design of stent-graft,the authors established an animal models of prosthetic abdominal aortic aneurysm (PAAA) in dogs,evaluated its biofunction,biocompatibility and renal effect.The PAAA was sutured using aneurysm neck (Φ 6 mm artificial blood vessel) and aneurysm body (Φ 29 and 31mm artificial blood vessel,respectively). Sixteen healthy adult dogs,with weight of 13. 5 ± 0. 66 kg,were randomly divided into 2 groups: group 29 mm and group 31 mm,8 in each group. Infrarenal aortic artery was reconstructed with PAAA to establish abdominal aortic aneurysm (AAA) animal model. Blood coagulation index such as prothrombin time (PT),activated partial thromboplatin time (APTT),thrombin time (TT) and Fibrinogen (Fbg) were detected pre-operation,1,7 and 14 days post-operation,respectively. Blood routine parameters were detected pre-operation 11,3 and 7 days post-operation. Renal function parameters such as blood urea nitrogen (BUN),creatinine (CREA),urea acid (UA) and urea/ creatinine (BU/CREA) were evaluated pre-operation and 30,90,150 days post-operation,respectively. PAAA were removed en bloc to determinine its biofuction and biocompatibility after 5 months of surgery. Kidneys were fixed in neutral buffered formalin solution,pathological slice were conducted to observate pathological changes of kidneys by HE stain.The results are as follows:1. Animal model: The PAAA was implanted to the infrarenal abdominal aortic artery without extensive bleeding after anastomosis. One dog died 2,25 and 127 days post-operation in group 31 mm,respectively,and the overall success rate was 62. 5%. One dog died 7 days post-operation in group 29 mm,the overall success rate was 87. 5%.2. Biofunction and biocompatibility of PAAA: Autopsy showed that there were no abdominal adhesions around the PAAAs,the lumen was patent without blood clots,there were no bleeding in PAAAs in two groups. Biocompatibility was poor because the outer layer of PAAA was enclosed by
To provide experimental model for abdominal aortic aneurysm research and to optimize design of stent-graft,the authors established an animal models of prosthetic abdominal aortic aneurysm (PAAA) in dogs,evaluated its biofunction,biocompatibility and renal effect.The PAAA was sutured using aneurysm neck (Φ 6 mm artificial blood vessel) and aneurysm body (Φ 29 and 31mm artificial blood vessel,respectively). Sixteen healthy adult dogs,with weight of 13. 5 ± 0. 66 kg,were randomly divided into 2 groups: group 29 mm and group 31 mm,8 in each group. Infrarenal aortic artery was reconstructed with PAAA to establish abdominal aortic aneurysm (AAA) animal model. Blood coagulation index such as prothrombin time (PT),activated partial thromboplatin time (APTT),thrombin time (TT) and Fibrinogen (Fbg) were detected pre-operation,1,7 and 14 days post-operation,respectively. Blood routine parameters were detected pre-operation 11,3 and 7 days post-operation. Renal function parameters such as blood urea nitrogen (BUN),creatinine (CREA),urea acid (UA) and urea/ creatinine (BU/CREA) were evaluated pre-operation and 30,90,150 days post-operation,respectively. PAAA were removed en bloc to determinine its biofuction and biocompatibility after 5 months of surgery. Kidneys were fixed in neutral buffered formalin solution,pathological slice were conducted to observate pathological changes of kidneys by HE stain.The results are as follows:1. Animal model: The PAAA was implanted to the infrarenal abdominal aortic artery without extensive bleeding after anastomosis. One dog died 2,25 and 127 days post-operation in group 31 mm,respectively,and the overall success rate was 62. 5%. One dog died 7 days post-operation in group 29 mm,the overall success rate was 87. 5%.2. Biofunction and biocompatibility of PAAA: Autopsy showed that there were no abdominal adhesions around the PAAAs,the lumen was patent without blood clots,there were no bleeding in PAAAs in two groups. Biocompatibility was poor because the outer layer of PAAA was enclosed by
出处
《畜牧与兽医》
北大核心
2012年第S2期44-45,共2页
Animal Husbandry & Veterinary Medicine
