<qa>  What is the name of the type of catheter that is associated with a disproportionate risk forCatheter associated infection. Current literature indicates that these catheters are associated with a disproportionate risk for infection, particularly CRB, resulting in high morbidity, mortality and healthcare expenditure. The epidemic of ESRD in this country has seen an ever increasing reliance on these catheters not only to initiate the HD but also for long term treatment in those patients who have no other access options. It has been estimated that intravascular catheters are associated with more than 60,000 cases of nosocomial bacteremia each year. HD catheters pose a particularly high risk for developing infections because of their frequent use as well as their long-term use. All indwelling vascular catheters are colonized by micro-organisms within 24 hours after insertion. The deposition of biofilm on the external and internal surface of vascular catheters is thought to play an important role in the colonization process. The biofilm is produced by a combination of host factors e.g., fibrinogen, fibrin, fibronectin and extracellular polysaccharides and microbial products e.g., glycocalyx or slime. 