This type of access is usually temporary but is sometimes used for long-term treatment. One type of catheter is designed to be left in the vein for weeks, months, or even years if necessary. This catheter is long enough to be threaded under the skin into a comfortable position for the patient. This type of catheter has a special fabric area called a cuff that secures the catheter into place and acts as a barrier to infection. Catheters can be used immediately and many times are used when no other access is available.
Catheters are more likely to become infected than fistulas or grafts.
Also, the blood flow through catheters is slower than fistulas and grafts. Therefore, the blood is not filtered as well, and patient treatment times may be longer. Be careful to protect the catheter from being accidentally pulled out or damaged. No scissors or other sharp objects such as safety pins should be used near the catheter. The catheter should be secured comfortably to prevent it from catching on clothing.