A temporary catheter (plastic tube) is needed when
Sometimes it is not possible to create a fistula. In that case a graft may be an option.
A graft is an artificial (synthetic) vessel or tube that is placed under the skin, with one end attached to an artery and the other to a vein.
The creation of a fistula involves a minor surgical procedure.
A fistula is a connection between an artery and a vein. The increased pressure from the artery helps the vein to expand over time.
It is best to have a fistula made at least a month or two before you need to start dialysis. Placement ahead of time allows the blood access to develop fully and heal before using it.
This typically takes around 6–8 weeks.
If you need to start dialysis immediately or have problems with your fistula or graft, a temporary catheter (plastic tube) may be inserted into a vein, usually at the bottom of your neck.
The catheter remains in place between treatments.
Typically, this catheter is used until your permanent access has matured.
The temporary catheter is directly connected to the sterile tubing set.
Fistula needles are not necessary.
The use of a temporary access is not recommended for long term use.
This can lead to an increased risk of infection and clotting over time and the risk of inadequate dialysis.