Comparison between conventional and midterm haemodialysis catheter outcome in haemodialysis patients

Abstract

R eliable and sustained access to the circulation is mandatory for the provision of long-term hemodialysis which is critical to the survival of patients with end-stage renal disease (ESRD),so an ideal vascular access must provide adequate blood flow to meet the hemodialysis prescription, with minimal complications due to infection or thrombosis. There are two main categories of hemodialysis catheters: • Non-tunneled, uncuffed, designed for short-term venous access of up to three weeks or more. this category include: (i) Short term dialysis catheters which are usually made of stiff materials: polyurethane or polyvinyl, and thus are easier to introduce along the guide wire and a hemostasis valve is not needed. The sharp distal tip facilitates the insertion through the subcutaneous tissues. Compared to soft catheters, they are more resistant to bending in the vessel.. They may be used for several days or up to three weeks. Their main advantage is easy insertion into the vessel using the Seldinger technique with easy replacement not requiring expensive accessory devices,. Generally, the