W20b Twardowski 1 Buttonhole Method of Fistula ... - SFAV

Cannulation of the Established
Track
• Only after the track is developed other
persons should be eligible to cannulate the
fistula using blunt needles inserted exactly
through the established track.
• Before cannulation the site should be
thoroughly disinfected, the scab present in
the buttonhole should be removed with a
19 gauge ge sharp needle, the site
disinfected again and then the needle
introduced to the track.