Management of Suspected Mediport Malfunction

Initial Assessment

The American Journal of Kidney Diseases recommends evaluating for dysfunction, defined as failure to attain and maintain adequate flow (300 mL/min in adults) or difficulty with aspiration 1, 2
Assess for clinical signs of infection including fever, erythema, tenderness, or drainage at the port site, as suggested by Annals of Oncology 3

For thrombotic occlusion, the American Journal of Kidney Diseases suggests administering thrombolytics using one of these approaches 1, 4
For suspected infection, Annals of Oncology recommends collecting blood cultures before starting antibiotics, with paired samples from the catheter and peripheral vein 3, 6
The American Journal of Kidney Diseases recommends using proper skin antisepsis with alcohol, iodine tincture, or alcoholic chlorhexidine (10.5%) for suspected infection 3, 6
Initiate empirical antibiotic therapy immediately for suspected infection, with vancomycin as first-line for suspected catheter-related bloodstream infections, as recommended by Annals of Oncology and Praxis Medical Insights 3, 6, 7

For infected ports, determine whether salvage is appropriate, with salvage attempted for uncomplicated infections with coagulase-negative staphylococci, as suggested by Praxis Medical Insights 6, 7
Removal is indicated for severe infections or those with S. aureus, fungi, or mycobacteria, as recommended by Annals of Oncology and Praxis Medical Insights 3, 6
If antibiotic lock therapy is used for salvage, treatment duration should be 7-14 days, with dwell time ideally ≥12 hours, as suggested by Annals of Oncology and Praxis Medical Insights 3, 7