“…Neither the manufacturer nor the material were reported in half (22/44) of the case reports 31,34,35,37,41,44,45 . Seven catheters were polyethylene 36,38,42,43 , one PVC 39 , five silicone 12,13 , two teflon 24 and seven polyurethane 20,21,23,24,25,40 . It is necessary to include the name of the manufacturer, as not only does catheter stiffness differ between different makes of CVCs, it may also differ between those composed of the same material by the same manufacturer 46,47 .…”