Ptfe Graft Reconstruction of the External Iliac Artery in Kidney Transplant Recipients With Severe Atherosclerosis

Abstract

5 1 7 Supplement to Transplantation July 27, 2008, Volume 86 Number 2S of distal part of iliac artery for 5 minutes after vascular anastomoses were completed was the only differences between groups. We observed reperfusion and recorded by termovison camera. The thermovision camera was focused on the renal parenchyma. The images acquired over the operation area were recorded intraoperatively using a thermovision camera ThermaCAMTM SC500 which detects infra-red radiation and records digital images with surface temperature distribution of tested objects. During the reperfusion of every graft we made 100 thermographic scans each acquired in one second interspaces. We started the recording at the moment of removal of the arterial forceps (end of rewarm time). The outcoming graph of thermoemission changes of the graft was nearly continuous this way. The computerized system of image analysis enables to choose the method of the radiation and temperature analysis (along a given line on a given surface) and to present the obtained results in the form of a text or a diagram. To estimate the emission of radiation from the area studied, one can also used such parameters as highest and lowest or the average temperature inside a chosen isotherm. Kidneys function was analyzed by creatinine and BUN level and diuresis ( follow up 6 months). Conclusion: The registered initial and continuous images of the kidney reperfusion enable to compare temperature distribution and make a qualitative analysis of the effi ciency of reperfusion. It is non-contact method that does not disturb during operation and it is saving for graft. These data demonstrate the reperfusion in a new digitally imaging and additional clinical study will help us to develop of this technology in investigative practice. Claping of distal part of iliac artery cut down of reperfusion time but is not correlated with creatinine, BUN level and diuresis. Purpose: The aim of this prospective clinical study was a nine year follow up of renal function in renal transplant patients with (Peak systolic velocity ¡Ý 200cm/sec) and without a signifi cant renal artery stenosis. In addition, the difference in number of rejections between these two groups is determined. Methods: Nineteen adult renal transplant patients, with signifi cant renal transplant artery stenosis (peak systolic velocity ¡Ý 200cm/s) diagnosed by Duplex ultrasound, were compared to eighty-one adult recipients without renal artery stenosis (peak systolic velocity < 200cm/s). These two groups, matched by age, gender, time and type of renal transplantation, were followed during a period of nine years post-transplantation. The peak systolic velocity (PSV) in the renal transplant artery, pulsatility index (PI) and resistance index (RI) were measured at least one year post-transplantation. Furthermore, serum creatinine was followed twice a year during the period of 9 year follow up. After nine years the recipients with renal artery stenosis (PSV ¡Ý 200cm/ sec) underwent the second duplex-Doppler for evaluation of renal ...