Changes in body protein composition following aortic reconstruction.

摘要: Major surgery initiates a stress response due to the body's neuroendocrine reaction which leads breakdown of muscle protein with an increased urinary nitrogen excretion and negative balance. In vivo neutron activation analysis (IVNAA) is technique measures total body nitrogen. A 23 IVNAA studies were performed in six patients having aortic reconstruction assess effect this major operation on determine time required for return pre-operative state. Aortic caused mean decrease 2.9% bodyweight (from 65.4 kg 63.5 kg) but much greater 9.9% 1778 g 1602 g). Only two had recovered values by end study period extended 92 days.