Management of Bacteremic CAUTI with Retained Suprapubic Catheter

Critical Pre-Treatment Steps

The European Association of Urology recommends replacing the suprapubic catheter before initiating antimicrobial therapy if it has been in place for ≥2 weeks at the onset of bacteremic CAUTI, which decreases polymicrobial bacteriuria, shortens time to clinical improvement, lowers CA-UTI recurrence rates, and addresses biofilm formation 2, 1, 3
Obtain urine culture from the new catheter before starting antibiotics to guide appropriate antimicrobial selection given the high likelihood of resistant organisms 2, 1, 3

The European Association of Urology guidelines recommend 10-14 days of treatment for bacteremic CAUTI, particularly when the catheter must remain in place 4, 1
Treat for 14 days in men when prostatitis cannot be excluded, as prostate involvement requires longer therapy 4, 1

Transition from IV to oral antibiotics when the patient is hemodynamically stable, has been afebrile for at least 48 hours, and the oral route is functioning 4, 1
Fluoroquinolones are preferred oral agents for step-down when the catheter remains in place, but only use ciprofloxacin if local resistance is <10% and the patient has not used fluoroquinolones in the last 6 months 3, 4, 1

For patients with systemic symptoms, use combination therapy, such as amoxicillin plus an aminoglycoside, or a second-generation cephalosporin plus an aminoglycoside, or intravenous third-generation cephalosporin 4, 1, 2
Tailor therapy based on culture results and susceptibility testing 4

For tunneled/permanent catheters that cannot be removed in hemodynamically stable patients, treat for 14 days with systemic therapy, and consider quinolones with or without rifampin 3
Strongly consider catheter removal for Pseudomonas species, Burkholderia cepacia, Stenotrophomonas, Agrobacterium, and Acinetobacter baumannii, especially if bacteremia persists despite appropriate antimicrobials 3
If S. aureus is isolated, perform transesophageal echocardiography to rule out endocarditis, which would require 4-6 weeks of therapy, and treat for 14 days without endocarditis 3

Do not treat asymptomatic bacteriuria in patients with retained catheters, as this promotes antimicrobial resistance without reducing subsequent CA-UTI 2, 1, 3
Failing to replace catheters in place ≥2 weeks before starting antibiotics significantly reduces treatment efficacy due to established biofilms 2, 1, 3
Do not administer prophylactic antimicrobials at catheter replacement, as this promotes resistance without benefit 2, 1, 3
Not obtaining cultures before initiating antibiotics leads to inappropriate antibiotic selection given high rates of multidrug-resistant organisms in CAUTI 1, 3