[Lateroterminal arteriovenous fistula with "safety valve" for haemodialysis (author's transl)].

We describe a new type of arteriovenous fistula for haemodialysis, aimed at controlling arterial spasms which contribute to thrombosis. A laterolateral fistula is created, and the artery is sectioned below the anastomosis. A Fogarty catheter inserted through this "safety valve" relieves the spasm without interfering with the arteriovenous shunt. Mere ligature of the distal segment of the artery transforms the fistula from terminolateral into terminoterminal.