Introduction: Inability to establish a success VASCULAR ACCESS or associated complications are major causes of morbidity and mortality in ESRD patients.Objective: Relative Frequency of Success and Complications of VASCULAR ACCESS in End Stage Renal Disease (ESRD) in Razi Hospital (2007).Materials and Methods: This descriptive-cross sectional study was performed on ESRD patients in Razi Hospital. The data were collected based on interview and physical examination. Because of the probability of failure in ACCESS of any patient and need to another ACCESS establishment, the ACCESS numbers was more than the patients number.Results: Among total of 151 patients 59.6% of patients was man and 40.4% was woman. The mean age of patients was 54.22±14.39 years. Success rate of dialysis was 86.1%. 82.9% of VASCULAR ACCESS was used less than 2 months of creation (mean=31-60 days). 32 cases of complications (15.6%) were recorded which included: 9 cases of false aneurysm, 9 cases of venous hypertension, 5 cases of infection, 4 cases of steal syndrome, 3 cases of true aneurysm and 2 cases of thrombosis. The most number of complications were happened in antecobital AVF.Conclusion: Success rate of dialysis in this study is like that other studies.  Because of patients don't refer in proper time; use of VASCULAR ACCESS was performed in less than 2 months of creation. It can increase complications and decrease patency rate of VASCULAR ACCESS. On the other hand, to decrease the cost, usage of graft is less than native AVF, it could be reason of increased presence of complications in native AVF.

Background: VASCULAR ACCESS (VA) is a prerequisite for initiation of hemodialysis (HD) in patients with end- stage renal disease (ESRD). Frequency and potency of V A types are varibus in different societies. We have done this study to achieve this goal. Materials and Methods: This descriptive retrospective study was performed over two months (august and September 2003) iq four HD centers in Isfahan, Iran. All of the patients who were treated with HD for more than 1 month were studied for the number, type of V A and some demographic factors. The questionnaires were completed at the patient"s bedside. Results: There were 320 patients. (199 male and 121 female). Mean age was 50.64± years. Among 412 permanent VAs which were created in the duration of HD, only 4 and 7 of them were graft and dual _ lumen cuffed catheters, respectively. All of the others were arterio venous fistula (AVF).The mean number of created permanent VAs in females was more than males. It was increased by some factors such as increasing the duration of HD, increasing the interval between creating permanent VA and initiation of HD. Although the latest was not statistically significant. 1 Year, 2-year, 3-year and 5- year survival of AVF was 80%, 78%, 73% and 69%, respectively. Primary failure of AVF was. 13%. Conclusion: Regarding the statistics of other centers, survival of AVF was low in Isfahan. The prevalence of grafts & dual - lumen cuffed catheters is lower than other countries. The majority of our patients use AVF as a VA. The earlier the patient is encouraged to create a permanent VA before initiation of HD, the AVF survival is higher.