ARTERIAL WALL MECHANICAL PROPERTIES AND KIDNEY GRAFT ARTERIAL STENOSIS

The connection of vascular segments with different mechanical properties increases the risk of generating blood turbulent fluxes, and involves the development of complications such as atherosclerosis in the arterial vessels. The mechanical properties of arterial vessel of two different subjects, the donor and the recipient, were analyzed. To experimentally validate the effects of the arterial wall mechanical properties on blood fluxes, 352 patients who received kidney transplantation were studied, concerning the development of renal artery atherosclerotic stenosis. An anastomothic arterial stenosis was observed in 92% of transplanted patients with donor/recipient age difference > 15 years, and in 5.7% of transplanted patients with donor/recipient age difference ≤ 15 years. In conclusion, it is useful to give more consideration to the patient's age difference in organ and vessel transplantations.