Background
- ESBL producing oraganisms confer resistance to most beta lactam antibiotics, including penicillins, cephalosporin and monabactam, aminoglycoside and fluoroquinolones.
- Most ESBLs do not break down cephamycins or carbapenems and are susceptible to beta lactamase-inhibitors
- First line for severe infection caused by ESBL producing organism is carbapenem ( imipenem, meropenem, doripenem and ertapenem). Meropenem or imepenem is widely used, ertapenem can be an option in the absence of resistance or severe sepsis and is useful in outpatient setting.
- High dose cefepime (2g q8h) may be effective for susceptible organisms. Use of other cephalosporin and piperacillin-tazobactam has been associated to treatment failure.
Antibiotic options for ESBL-Klebsiella treatment:
- IV imepenem 500mg q6h or IV meropenem 1g q8h or IV doripenem 500mg q8h or IV Ertapenem 1g q24h
- Duration 10-14 days
References:
1. Up-To-Date
2. Antibiotic ICU protocol
3. Sanford
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