Timing of Tunneled Dialysis Catheter Replacement After Removal for Endocarditis-Associated Bacteremia

Introduction to Catheter Replacement Guidelines

The American College of Physicians and the Infectious Diseases Society of America recommend delaying catheter reinsertion until after appropriate systemic antimicrobial therapy is initiated, blood cultures are negative, and ideally after completing the full antibiotic course with repeat blood cultures 5-10 days later remaining negative 1, 2

The Infectious Diseases Society of America suggests that the presence of endocarditis requires completion of 4-6 weeks of antibiotic therapy before considering catheter replacement 3, 4, 5, 6, 7, 8, 9
Initiate appropriate systemic antimicrobial therapy based on organism susceptibilities 1, 2
Obtain repeat blood cultures demonstrating clearance of bacteremia 1, 2

Complete the full 4-6 week course of systemic antibiotics for endocarditis treatment 3, 4, 5, 6, 7, 8, 9
After completing antibiotics, wait an additional 5-10 days 1, 2
Obtain repeat blood cultures during this waiting period 1, 2
Only proceed with new catheter placement if these surveillance cultures remain negative 1, 2

Staphylococcus aureus with endocarditis requires 4-6 weeks of antibiotic therapy 3, 4, 5, 6, 7, 8, 9
Transesophageal echocardiography (TEE) should be performed to confirm endocarditis and guide treatment duration 3, 4, 5, 6, 7, 8, 9
Gram-Negative Organisms with endocarditis also require 4-6 weeks of therapy when endocarditis or prolonged bacteremia is present 3, 4, 5, 6, 7, 8
Candida Species require catheter removal and 14 days of antifungal therapy after the last positive blood culture 4, 9

Non-tunneled temporary catheters can be placed at a different site after appropriate antimicrobial therapy is begun 1, 2
These temporary catheters should be placed at anatomically separate locations from the infected site 3, 4, 5, 6, 7, 8

Treating endocarditis for less than 4-6 weeks increases relapse risk 3, 4, 5, 6, 7, 8, 9
Not obtaining surveillance blood cultures before catheter replacement can result in placing a new catheter in a patient with persistent bacteremia 1, 2, 10

If bacteremia persists ≥3 days after catheter removal despite appropriate antibiotics, aggressively evaluate for septic thrombosis, persistent endocarditis, and other metastatic infections 1, 2, 9
Do not place a new catheter until the source of persistent bacteremia is identified and treated 1, 2