16. MATURATION
AVF
• Cannulation before two weeks of age should be avoided.
• Cannulation between two to four weeks may be attempted but
only if the fistula is considered mature.
• Cannulation after four weeks of maturation may be safe, if the
fistula is mature.
Independent of the age of the fistula, clinical examination prior to
cannulation is very important, given that some fistulas require up
to six months to mature.
17. Grafts
Grafts can be cannulated for hemodialysis
earlier than fistulas.
Grafts can usually be cannulated within weeks.
Some times within days of surgery
18. CANNULATION
• Direction of needles االثش ٙارجب
• First cannulation: rules, experienced
hands
• Techniques :
1. Rope Ladder
2. Butttonhole
• Follow rules of infection control during
needle insertion