Treatment of Liver Cirrhosis with Community-Acquired Spontaneous Bacterial Peritonitis

Clinical Scenario

A patient with liver cirrhosis develops community-acquired spontaneous bacterial peritonitis (SBP). The condition is confirmed by an ascitic fluid neutrophil count above 250 cells/mm³. Immediate empirical treatment is indicated at the time of diagnosis.

Diagnostic Basis

SBP is diagnosed when the neutrophil count in ascitic fluid exceeds 250/mm³. This threshold triggers the need for prompt empirical antibiotic therapy without waiting for culture results.

Treatment Approach (partial overview)

First-line management combines empirical intravenous antibiotic therapy — centred on a third-generation cephalosporin — with intravenous albumin infusion. The choice of antibiotic class is guided by local bacterial resistance patterns; in settings with elevated resistance rates, alternative agents are preferred.

Complete regimen, dosing schedule, resistance-stratified selection, and full monitoring parameters are available in the structured protocol →

Treatment Goals

Antibiotic efficacy is assessed with a second paracentesis at 48 hours. Response requires a marked reduction in ascitic fluid neutrophil count of at least 25% at 48 hours, with the count falling below 250/mm³ by day seven. Worsening clinical signs or an insufficient reduction in leucocyte count at 48 hours signals first-line failure and the need to reassess.

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References

DOI: 10.1016/j.jhep.2018.03.024

The diagnosis of SBP is based on neutrophil count in ascitic fluid of >250/mm³ (II-2;1).

Empirical i.v. antibiotics should be started immediately following the diagnosis of SBP (II-2;1).

Third-generation cephalosporins are recommended as first-line antibiotic treatment for community-acquired SBP in countries with low rates of bacterial resistance (I;1). In countries with high rates of bacterial resistance piperacillin/tazobactam or carbapenem should be considered (II-2;1).

The administration of albumin (1.5 g/kg at diagnosis and 1 g/kg on day 3) is recommended in patients with SBP (I;1).

The efficacy of antibiotic therapy should be checked with a second paracentesis at 48 h from starting treatment. Failure of first-line antibiotic therapy should be suspected if there is worsening of clinical signs and symptoms and/or increase or no marked reduction in leucocyte count (at least 25%) in 48 h (II-2;1).

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