Hyperhomocysteinemia, a Risk Factor for Arteriovenous Fistula Thrombosis in Hemodialysis Patients

Demographic data and underlying diseases had been recorded (Table 1). All patients were being treated with 5 mg folic acid while no patient received ASA or warfarin [1]. A fasting pre hemodialytic blood sample was obtained from all patients and plasma total homocysteine (tHcy) level was determined by means of Immunoturbidimetry Based on conversion NADH+ to NAD. According to the history of venous puncture and the diameter of cephalic and basilic vein, the patients had been categorized into A (excellent), B (intermediate) and C (poor) group of fistula outcome (Table 2). 18 Patients who experienced AV fistula thrombosis at the first month and those who needed to dialysis during the study period had been excluded [2].