Spontaneous bacterial peritonitis: a therapeutic update.

Area of Science:

• Hepatology
• Infectious Diseases
• Gastroenterology

Background:

• Spontaneous bacterial peritonitis (SBP) is a frequent infectious complication in patients with cirrhosis and ascites, occurring in 8-30% of hospitalizations.
• SBP involves the infection of ascitic fluid without an identifiable intra-abdominal source, primarily driven by bacterial translocation from the gut.
• Risk factors include jejunal bacterial overgrowth, compromised intestinal barrier function, and reduced local blood flow.

Purpose of the Study:

• To outline the diagnostic criteria and management strategies for spontaneous bacterial peritonitis in cirrhotic patients.
• To emphasize the importance of early diagnosis and appropriate antibiotic therapy for SBP.
• To highlight the role of antibiotic prophylaxis in preventing SBP recurrence and other infections.

Main Methods:

• Diagnostic paracentesis of ascitic fluid for polymorphonuclear count and culture.
• Utilizing leukocyte esterase dipstick tests for rapid SBP diagnosis.
• Initiating prompt empirical antibiotic therapy, such as cefotaxime or third-generation cephalosporins, upon clinical and laboratory suspicion.

Main Results:

• Ascitic fluid cultures are typically monomicrobial, with Escherichia coli and other Gram-negative bacteria being common pathogens.
• Third-generation cephalosporins demonstrate approximately 90% efficacy in treating acute SBP.
• Oral quinolones are effective for uncomplicated SBP, and prophylactic antibiotics like norfloxacin reduce recurrence rates.

Conclusions:

• Early diagnosis and prompt antibiotic treatment are vital for managing spontaneous bacterial peritonitis in cirrhotic patients.
• Prophylactic antibiotic therapy significantly reduces the high recurrence rate of SBP and lowers the risk of other infections in high-risk individuals.
• Continued vigilance and appropriate management strategies are essential for improving outcomes in patients with cirrhosis and ascites.