![]() ![]() Certain catheters-such as PICC lines and Hohn catheters-can be easily removed at the bedside or in clinic. When the central venous access catheter is no longer necessary, or if a catheter-related infection arises, interventional radiologists can assist in removing the catheter. When and how are central venous access catheters removed? Infusions of antibiotics or other medications.Which patients require central venous access catheters?ĭoctors often recommend CVACs for patients who regularly undergo: Most of the ports we implant can be used with a power injector for a CT scan or MRI. These are available with a single lumen (most commonly used) or two lumens. They are placed and removed by a small surgical incision and lie entirely under the skin. These ports can be maintained for longer periods (months to years). Implantable ports are most frequently used for cancer chemotherapy or for patients with diseases, such as cystic fibrosis, for which there will be a long-term need for frequent venous access. ![]() If a previously functional hemodialysis fistula or graft is experiencing poor flows or thromboses, interventional radiologists can also use procedures such as angioplasty, stent placement, and thrombolytic therapy to salvage function. Tunneled dialysis catheters are placed in patients who require hemodialysis but do not have a functioning fistula or graft. These are most frequently placed in the veins of the neck, although other sites can be used if necessary. These catheters are specially designed for rapid flow of blood to and from the dialysis machine.
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