Pylephlebitis

Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
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Pylephlebitis
Diagram of the portal vein and its tributaries
Synonyms	N/A
Pronounce	N/A
Specialty	N/A
Symptoms	Fever, abdominal pain, jaundice, nausea, vomiting
Complications	Sepsis, liver abscess, portal hypertension
Onset	Acute
Duration	Variable
Types	N/A
Causes	Appendicitis, diverticulitis, intra-abdominal infection
Risks	Immunosuppression, inflammatory bowel disease
Diagnosis	Ultrasound, CT scan, blood culture
Differential diagnosis	Portal vein thrombosis, liver abscess, biliary tract infection
Prevention	N/A
Treatment	Antibiotics, anticoagulation, surgery
Medication	N/A
Prognosis	Variable, depends on underlying cause and treatment
Frequency	Rare
Deaths	N/A

Pylephlebitis is a rare and serious condition characterized by inflammation and thrombosis of the portal vein, which can lead to portal hypertension and other complications. It is often a result of intra-abdominal infection, such as appendicitis or diverticulitis, that spreads to the portal venous system.

Pathophysiology

Pylephlebitis occurs when an infection in the abdominal cavity, typically originating from the gastrointestinal tract, spreads to the portal vein. The infection can cause inflammation of the vein wall, leading to the formation of a thrombus. This thrombus can obstruct blood flow through the portal vein, resulting in increased pressure in the portal venous system, known as portal hypertension.

Clinical presentation

Patients with pylephlebitis may present with a variety of symptoms, including:

• Fever
• Abdominal pain
• Jaundice
• Nausea and vomiting
• Hepatomegaly

The condition can lead to serious complications such as liver abscesses, sepsis, and multi-organ failure.

Diagnosis

The diagnosis of pylephlebitis is typically made using imaging studies. Ultrasound and CT scan are commonly used to visualize the portal vein and detect any thrombus or inflammation. Blood cultures may also be performed to identify the causative organism.

Treatment

Treatment of pylephlebitis involves addressing the underlying infection and managing the thrombus. This typically includes:

• Antibiotic therapy to treat the infection
• Anticoagulation therapy to prevent further thrombus formation

In some cases, surgical intervention may be necessary to address the source of infection or to manage complications.

Prognosis

The prognosis of pylephlebitis depends on the promptness of diagnosis and treatment. Early intervention with appropriate antibiotics and anticoagulation can improve outcomes, but the condition can be life-threatening if not treated promptly.

See also

• Portal vein
• Thrombosis
• Portal hypertension
• Appendicitis
• Diverticulitis