Antibiotics for Pseudomonas Aeruginosa UTI

First-Line Treatment Options

• The European Urology Association recommends fluoroquinolones, such as ciprofloxacin or levofloxacin, as first-line oral treatment options for Pseudomonas aeruginosa urinary tract infections 1, 2
• For hospitalized patients, the European Urology Association recommends ciprofloxacin, levofloxacin, cefepime, piperacillin/tazobactam, or aminoglycosides as parenteral treatment options 1, 3

Treatment for Resistant Pseudomonas

• The International Journal of Antimicrobial Agents suggests ceftolozane/tazobactam or ceftazidime/avibactam as first-line options for difficult-to-treat resistant Pseudomonas aeruginosa strains 2, 4, 5
• Imipenem/cilastatin/relebactam or colistin-based therapy may be considered as alternative options for resistant strains 2, 4, 5

Duration of Treatment

• The European Urology Association recommends a treatment duration of 7 days for uncomplicated UTI and 7-14 days for complicated UTI 1, 3, 6
• Treatment should be tailored based on culture and susceptibility results 4, 5

Important Considerations

• The European Urology Association advises that fluoroquinolone resistance should be less than 10% in the local population for empirical use 1, 3
• Monotherapy with a highly active antipseudomonal agent is generally preferred over combination therapy 4, 5

Pitfalls and Caveats

• The FDA has issued a warning about the potential for disabling and serious adverse effects with fluoroquinolones 7
• Pseudomonas aeruginosa has a high capacity to develop resistance to commonly used antibiotics 4, 5
• Urine culture and susceptibility testing should always be obtained to guide definitive therapy 1, 6