Efficacy and Local Tolerability of Topically Applied Heparin on the Suitability of Newly Constructed Primary Arteriovenous Fistulas in Patients Planned for Haemodialysis

Randomization will be performed 2 - 14 days post fistula creation surgery following confirmation that the fistula is patent by physical examination. Patients that are randomized to this study arm, will be asked to administer the study medication twice daily. Patients will get adequate training before first administration.

Randomization will be performed 2 - 14 days post fistula creation surgery following confirmation that the fistula is patent by physical examination. Patients that are randomized to this study arm, will be asked to administer the study medication (placebo) twice daily. Patients will get adequate training before first administration.