From: Treatment of complicated intra-abdominal infections in the era of multi-drug resistant bacteria
 | Monotherapy | Combination therapy |
---|---|---|
Diagnosis | Â | Â |
Secondary peritonitis | Â | Â |
low risk (localised peritonitis) | Ampicillin/Sulbactam | 2nd generation Cephalosporin + Metronidazol |
 | Carbapenem | 3rd generation Cephalosporin + Metronidazol |
low risk (diffuse peritonitis) | Ampicillin/Sulbactam | 2nd generation fluorochinolon + Metronidazol |
 | Piperacillin/Tazobactam | 3rd or 4th generation Cephalosporin + Metronidazol |
 | Carbapenem (group 1/2) |  |
 | Fluorochinolon 4th generation |  |
 | Tigecyclin |  |
High risk | Piperacillin/Tazobactam | 4th generation Cephalosporin + Metronidazol |
 | Carbapenem (group 1/2) |  |
 | Tigecyclin |  |
Tertiary peritonitis | According to resistance from microbiology | Antifungal therapy in high risk patients |