A Predictive Model for Avoiding Follow-Up Paracentesis in Spontaneous Bacterial Peritonitis

Area of Science:

• Hepatology
• Infectious Diseases
• Internal Medicine

Background:

• Spontaneous bacterial peritonitis (SBP) is a serious complication of ascites.
• Current guidelines suggest follow-up paracentesis (FuP) only for worsening SBP.
• The utility of routine FuP in SBP requires further evaluation.

Purpose of the Study:

• To identify predictors of inadequate response to antibiotic therapy in SBP patients.
• To determine which SBP patients would benefit from follow-up paracentesis.

Main Methods:

• Retrospective study of 96 SBP episodes in 75 patients.
• Clinical and analytical data collected at baseline and day 3 of antibiotic therapy.
• Inadequate response defined by <25% decrease in ascitic fluid neutrophil count on day 3.

Main Results:

• Predictors of inadequate response included respiratory insufficiency and abdominal pain at admission.
• Day 3 predictors of inadequate response were high C-reactive protein (CRP) and serum white blood cell count.
• A predictive model showed good accuracy (AUROC 0.893) for identifying inadequate response.

Conclusions:

• Follow-up paracentesis in SBP should be individualized.
• A predictive model incorporating clinical and analytical variables can guide decisions on FuP.
• This approach optimizes resource utilization and patient management.