Table 3

General framework for empirical initial antimicrobial treatment of VAP

Class of antimicrobial agentsAgents and dosages
*Consider also limezolid and synercid.
Ventilated patients:
Early onset, no risk factorsCephalosporin II• Cefuroxime 3 × 1.5 g
or
Cephalosporin III• Cefotaxime 3 × 2 g or
• Ceftriaxone 2 × 1 g
or
Aminopenicillin/β-lacatamase inhibitor• Amoxicillin/clavulanic acid 3 × 2.2 g
or
Third or fourth G quinolone• Levofloxacin 2 × 500 mg
or • Moxifloxacin 1 × 400 mg
Clindamycin/aztreonam• Clindamycin 3 × 600 mg
• Aztreonam 3 × 2 g
Late onset, no risk factorsQuinolone• Ciprofloxacin 3 × 400 mg
or
Aminoglycoside• Gentamicin 5–7 mg/kg
• Tobramycin 5–7 mg/kg
• Amikacin 1 × 15 mg/kg
plus
Antipseudomonal β-lactam/β-lactamase inhibitor• Piperacillin/tazobactam 3 × 4.5 g
or
Ceftazidime• Ceftazidime 3 × 2 g
or
Carbapenems• Imipenem/cilastatin 3 × 1 g
• Meropenem 3 × 1 g
plus/minus
Vancomycin*• Vancomycin 2 × 1 g
Early or late onset, risk factorsRisk factors for P aeruginosa: see late onset
Risk factors for MRSA: + vancomycin*• Vancomycin 2 × 1 g
Risk factor for legionellosis: macrolide• Erythromycin 4 × 1 g
or
• Azithromycin 1 × 500 mg
or
• Clarithromycin 2 × 500 mg
or
• Levofloxacin 2 × 500 mg
or
• Moxifloxacin 1 × 400 mg
Non-ventilated patients:
Early onset, no risk factorsSee ventilated patient
Late onset, no risk factorsSee ventilated patient; possibly monotherapy in the absence of severe pneumonia
Early or late onset, risk factorsSee ventilated patient, early or late onset, risk factors