Ja. Lowell et al., A TECHNIQUE FOR THE EXCHANGE OF TUNNELED POLYMERIC SILICONE CATHETERSAND IMPLANTABLE INFUSION PORTS, The American journal of surgery, 169(6), 1995, pp. 631-633
Tunneled polymeric silicone catheters and implantable infusion ports a
re used with increasing frequency. Complications may occur with cathet
er placement or ongoing use. A new technique is described that minimiz
es the risks associated with catheter reinsertion in patients with tun
neled polymeric silicone catheters that are either malfunctioning or m
ispositioned. This procedure allows for the exchange of these catheter
s without incurring the risk of a new venipuncture.