K65.2

Clinical Causes: Bacterial translocation from the intestines to the peritoneal cavity, often due to increased intestinal permeability. Overgrowth of bacteria in the intestines that then enter the peritoneal fluid through a compromised gut barrier. Reduction in immune defenses associated with liver disease, making infections more likely. Presence of liver cirrhosis with ascites, which creates an environment conducive to infection. Use of certain medications that suppress the immune system, increasing infection risk.

Key Symptoms: Fever and chills Abdominal pain or tenderness Abdominal bloating or distension Nausea and loss of appetite Weakness and fatigue Possible confusion or altered mental state in severe cases Reduced urine output in some instances General signs of infection such as increased heart rate or low blood pressure

Diagnosis Path: Diagnosis of spontaneous bacterial peritonitis typically involves several steps. Firstly, a healthcare provider may perform a physical examination, checking for abdominal tenderness and swelling. The definitive diagnosis often relies on analyzing the ascitic fluid collected via a procedure called paracentesis. In this test, a needle is used to draw fluid from the abdominal cavity, which is then tested for bacterial presence and cell counts. An elevated number of white blood cells, especially neutrophils, in the fluid suggests infection. Blood tests to identify markers of infection and liver function are also commonly performed, and in some cases, imaging studies like ultrasound may assist in ruling out other causes of abdominal symptoms.

Treatment Protocols: Treating spontaneous bacterial peritonitis generally involves several approaches. Antibiotic therapy is the cornerstone, aimed at eradicating the bacterial infection. The choice of antibiotics may depend on local bacterial resistance patterns, but third-generation cephalosporins are frequently used. Managing the underlying liver disease and controlling the ascites can help prevent recurrences. Additionally, in some cases, albumin infusion during initial treatment may improve outcomes by supporting blood volume and pressure. Close medical monitoring is essential to detect potential complications or recurrence. Long-term strategies might include using medications like non-selective beta-blockers to reduce portal hypertension, which contributes to fluid buildup and infection risk.