76: Pièce de (Gram-negative) Resistance, Part 1: AmpC, ESBL
Jun 26, 2023
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This podcast discusses the management of antimicrobial resistant Gram-negative infections, focusing on AmpC and ESBL. It explores treatment options for ESBL producers, the potential use of amineaglicocytes for urinary tract infections, antibiotic choices for perforated diverticulitis and serious infections, and antibiotic resistance in Gram-negative organisms.
Preferred antibiotics for ESBL E. coli infections are trimethoprim-sulfamethoxazole, ciprofloxacin, or levofloxacin.
Cephalpine is suggested for moderate to high-risk infections caused by AMPC-producing organisms like Club Celah Aerogenes.
Deep dives
ESBL E. coli Palaeinofritis Treatment
The preferred antibiotics for complicated UTI or palaeinofritis caused by ESBL E. coli are trimethoprim-sulfamethoxazole, ciprofloxacin, or levofloxacin. Carbapenems are preferred when resistance or toxicity prevents the use of the first-line agents.
AMPC Club Celah Aerogenes Infection Treatment
Cephalpine is suggested for infections caused by AMPC-producing organisms like Club Celah Aerogenes.
Monitoring and Management of AMPC Infections
Enterobacter cloacae, Club Celah Aerogenes, and Citrobacter freundii are considered high-risk for significant AMPC production. Cephalpine is suggested for moderate to high-risk infections, while carbapenems are preferred for significant AMPC production or where cephalpine resistance is encountered.
Choosing Antibiotics for Morganella Palaeinofritis and Bacteremia
In the case of Morganella Palaeinofritis and bacteremia, Ceftriaxone is a viable treatment option based on susceptibility results. However, for more severe infections, clinicians may consider using cephalpine for its broader spectrum coverage.
Welcome to Part 1 of this pair of episodes on management of antimicrobial resistant Gram-negative infections!! Drs. Hawra Al-Lawati and Pranita Tamma walk through the alphabet soup of AmpC and ESBL with 3 mini-cases