Sandbox g37

• Deep neck infection

• Empiric antimicrobial therapy

• Community-acquired deep neck infection

• Preferred regimen: Ampicillin-Sulbactam 1.5–3.0 g IV q6h OR Clindamycin 600–900 mg IV q8h OR Moxifloxacin 400 mg daily (if Eikenella is suspected)

• Nosocomial deep neck infection or immunocompromised host

• Preferred regimen: Ticarcillin-Clavulanate 3.0 g IV q6h OR Piperacillin-Tazobactam 3.0 g IV q6h OR Imipenem-Cilastatin 500 mg IV q6h OR Ciprofloxacin 400 mg IV q12h OR Levofloxacin 750 mg IV q24h

• Deep neck infection with high-risk of MRSA

• Preferred regimen: (Clindamycin 600–900 mg IV q8h OR Trimethoprim-Sulfamethoxazole 10 mg/kg/day IV q8h) AND Vancomycin 1.0 g IV q12h

• Necrotizing fasciitis

• Preferred regimen: Ceftriaxone 2.0 g IV q8h AND Clindamycin 600–900 mg IV q8h AND Metronidazole 500 mg IV q6h

• Specific anatomic considerations

• Cervical fascial space infections including Ludwig angina

• Causative pathogens

• Viridans and other streptococci
• Peptostreptococcus
• Bacteroides
• Other oral anaerobes

• Preferred regimen (immunocompetent host): (Penicillin G 2–4 MU IV q4–6h AND Metronidazole 0.5 g IV q6h) OR Ampicillin-Sulbactam 2 g IV q4h OR Clindamycin 600 mg IV q6h OR Doxycycline 200 mg IV q12h OR Cefoxitin 2 g IV q6h OR Cefotetan 2 g IV q12h
• Preferred regimen (immunocomppromised host): Cefotaxime 2 g IV q6h OR Ceftizoxime 4 g IV q8h OR Piperacillin 3 g IV q4h OR Imipenem 500 mg IV q6h OR Meropenem 1 g IV q8h OR Gatifloxacin 200 mg IV q24h

• Lateral pharyngeal or retropharyngeal space infections (odontogenic)

• Causative pathogens

• Viridans and other streptococci
• Staphylococcus
• Peptostreptococcus
• Bacteroides
• Other oral anaerobes

• Preferred regimen (immunocompetent host): (Penicillin G 2–4 MU IV q4–6h AND Metronidazole 0.5 g IV q6h) OR Ampicillin-Sulbactam 2 g IV q4h OR Clindamycin 600 mg IV q6h
• Preferred regimen (immunocomppromised host): Cefotaxime 2 g IV q6h OR Ceftizoxime 4 g IV q8h OR Piperacillin 3 g IV q4h OR Imipenem 500 mg IV q6h OR Imipenem 500 mg IV q6h OR Gatifloxacin 400 mg IV q24h

• Lateral pharyngeal or retropharyngeal space infections (rhinogenic)

• Causative pathogens

• Streptococcus pneumoniae

• Haemophilus influenzae
• Viridans and other streptococci
• Peptostreptococcus
• Bacteroides
• Other oral anaerobes

• Preferred regimen (immunocompetent host): (Penicillin G 2–4 MU IV q4–6h AND Metronidazole 0.5 g IV q6h) OR Ampicillin-Sulbactam 2 g IV q4h OR Clindamycin 600 mg IV q6h
• Preferred regimen (immunocomppromised host): Cefotaxime 2 g IV q6h OR Ceftizoxime 4 g IV q8h OR Piperacillin 3 g IV q4h OR Imipenem 500 mg IV q6h OR Imipenem 500 mg IV q6h OR Gatifloxacin 400 mg IV q24h

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