George S Georgiadis1, Konstantia Kantartzi2, Christos Argyriou1. 1. Department of Vascular Surgery, "Democritus" University of Thrace, University General Hospital of Evros, Alexandroupolis - Greece. 2. Department of Nephrology, "Democritus" University of Thrace, University General Hospital of Evros, Alexandroupolis - Greece.