Sandbox g55

• Enterobacter Return to Top

• Enterobacter species including E. aerogenes and E. cloacae

• 1. Empiric antimicrobial therapy pending in vitro susceptibility

• 1.1 Non–life-threatening infections or MDR-GNB prevalence < 20%

• Preferred regimen: Piperacillin-Tazobactam 3.375 mg IV q6h
• Alternative regimen: Ciprofloxacin 400 mg IV q12h

• 1.2 Life-threatening infections or MDR-GNB prevalence > 20%

• Preferred regimen: Meropenem 0.5–1 g IV q8h
• Alternative regimen (1): Colistin AND Meropenem 0.5–1 g IV q8h
• Alternative regimen (2): Colistin AND Fosfomycin 6 g IV q6h

• 2. In vitro susceptibility available

• 2.1 Susceptible to all tested agents

• Preferred regimen: Piperacillin-Tazobactam 3.375 mg IV q6h
• Alternative regimen (1): Ciprofloxacin 400 mg IV q12h
• Alternative regimen (2): Cefepime 2 g IV q8h

• 2.2 Extended spectrum beta-lactamase (ESBL)-producing Enterobacter spp.

• Preferred regimen: Meropenem 0.5–1 g IV q8h
• Alternative regimen: Cefepime 2 g IV q8h (if MIC ≤ 1 μg/mL)

• 2.3 Resistant to all tested agents

• Preferred regimen: Colistin AND Meropenem 0.5–1 g IV q8h
• Alternative regimen (1): Colistin AND Imipenem 500 mg IV q6h
• Alternative regimen (2): Colistin AND Minocycline 100 mg IV q12h

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• Acanthamoeba Return to Top

• Acanthamoeba species

• Balamuthia mandrillaris Return to Top

• Balamuthia mandrillaris