From 1968 until 1977 in 148 patients 202 arterio-venous fistulas for chronic hemodialysis were performed 41 out of them in the angle of the elbow. By the fistula in the angle of the elbow the V. mediana basilica is sutured end to side of the A. brachialis. This fistula is recommended, when the performance of a fistula in the forearm is failed.