ABSTRACT
In this study we evaluated the body composition before and two weeks after kidney transplantation and compared it with the healthy people by BIA. A total of 23 progressive renal failure patients who attended the transplantation were recruited for this study. The control group included 27 graft donors .Patients were checked one day before hemodialysis and a day before transplantation, by BIA. After transplantation, body composition was assessed between days 1-7 and on the 14[th] day of post transplantation. The control group included 27 graft donors. The comparison of body composition between two groups [donors and recipients] showed significant changes before hemodialysis and after transplantation, and TBW% decreased from the 7[th] day post transplantation. The Main cause of low level of TBW% was the decrease in ECW% and ECW/ICW from the beginning of 2[nd] week after transplantation. Just TBW% in normal males was different from that it normal females but in recipients there was no difference between males and females. The body composition takes a long time to reach to the normal level and two weeks after transplantation some agents are probably responsible for intense changes of body composition including drugs and mild prerenal azotemia specially on the 2[nd] week after transplantation