PROCEDURE: Tunneled hemodialysis catheter / Permacath exchange with fluoroscopy
DATE:
CLINICAL INDICATION:
OPERATING PHYSICIANS: , MD (Attending)/ , MD (Fellow)
MEDICATIONS: 1 gram IV,
ACCESS: Existing tunneled hemodialysis catheter
CONTRAST: None
FLUOROSCOPY TIME: minutes
COMPLICATIONS: None
IMPLANTABLE DEVICE: 15.5 French x cm tip-to-cuff hemodialysis catheter
PROCEDURE: After written and informed consent was obtained, the patient was placed supine on the procedure table. The existing catheter and chest/neck were prepped and draped in standard sterile fashion. A scout image was obtained. The indwelling heparin was withdrawn from the catheter lumens. The skin and subcutaneous tissue surrounding the catheter were anesthetized with 2% lidocaine. The catheter cuff was loosened with blunt dissection. A 0.035″ stiff Glidewire was advanced through each catheter lumen and into the IVC. The catheter was removed over the guidewires and a new 15.5 French x cm tip-to-cuff hemodialysis catheter was advanced centrally over the guidewires using fluoroscopy. The guidewires were removed and the catheter was tested, flushed, and charged with appropriate volumes of heparin. The catheter was secured to the skin with 2-0 Ethilon and a biodisc and sterile dressing were applied. The patient tolerated the procedure well and there were no immediate complications.
FINDINGS:
- The new catheter tip terminates in the right atrium.
- Satisfactory function with 20 ml syringe test.
IMPRESSION: Successful image-guided exchange of a ___ permcath / tunneled hemodialysis catheter as above.
Frequently Asked Questions
What is a permacath and why is it used?
A permacath is a type of tunneled hemodialysis catheter used for long-term access to the bloodstream for patients undergoing dialysis. It is typically inserted into a large vein, such as the internal jugular vein, and tunneled under the skin to reduce infection risk. This catheter allows for efficient blood flow, which is crucial for effective dialysis treatment.
A permacath exchange involves removing an existing catheter and replacing it with a new one, often under fluoroscopy guidance to ensure precise placement. The procedure includes prepping the area with sterile techniques, using guidewires for catheter removal and insertion, and securing the new catheter in place. It is a crucial procedure to maintain effective dialysis access and prevent complications.
What are the potential complications of a permacath exchange?
While generally safe, permacath exchanges can have potential complications, such as infection, bleeding, or displacement of the new catheter. However, these risks are minimized through sterile techniques and careful monitoring during and after the procedure. Patients are observed for any immediate complications before being discharged.
Why is fluoroscopy used in permacath exchanges?
Fluoroscopy provides real-time X-ray imaging, which helps guide the accurate placement of the new catheter during the exchange. This imaging technique is crucial for ensuring the catheter tip is correctly positioned, typically in the right atrium, to ensure optimal function and reduce the risk of complications.
What are the post-procedure care instructions after a permacath exchange?
After a permacath exchange, patients should follow specific care instructions to ensure proper healing and function. This includes keeping the area clean and dry, monitoring for signs of infection such as redness or swelling, and avoiding strenuous activities that could dislodge the catheter. Regular follow-up appointments are essential to assess catheter function and overall health.
How long does a permacath typically last before needing an exchange?
A permacath can remain functional for several months to years, depending on individual patient factors and care. However, regular monitoring is essential to determine when an exchange is necessary, often due to infection, thrombosis, or mechanical issues affecting dialysis efficiency.
What is the role of heparin in a permacath exchange?
Heparin is an anticoagulant used during a permacath exchange to prevent clot formation within the catheter lumens. It helps maintain catheter patency and function between dialysis sessions. Proper heparinization of the catheter is crucial to avoid blockages that can impede dialysis.