Pylephlebitis and Venous Thrombosis Management
Summary
Pylephlebitis denotes infective thrombophlebitis of the portal vein, usually arising as a complication of intra-abdominal or pelvic infection. Bacterial translocation into the portal circulation initiates an inflammatory cascade, leading to septic clot formation and potential hepatic or mesenteric ischaemia. Clinical presentation often includes fever, abdominal pain and signs of systemic sepsis, while laboratory tests reveal elevated inflammatory markers and, in some cases, positive blood cultures. Diagnosis hinges on imaging modalities such as contrast-enhanced computed tomography and Doppler ultrasonography to visualise thrombus and detect associated abscesses. Management revolves around prolonged intravenous broad-spectrum antibiotics tailored to microbiological results, with anticoagulant therapy introduced for thrombus progression on serial imaging or persistent febrile episodes despite adequate antimicrobial treatment. Adjunctive measures include percutaneous drainage of collections and multidisciplinary care involving hepatology, surgery and interventional radiology. Despite its rarity, pylephlebitis carries a significant mortality rate, estimated at 10–15 per cent, underscoring the importance of early recognition and standardised treatment protocols. Mesenteric venous thrombosis, a related entity, may complicate conditions such as appendicitis and diverticulitis, carrying the additional risk of bowel infarction and necessitating combined surgical and medical intervention.
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Pylephlebitis and Venous Thrombosis Management publication trend
The graph below shows the total number of articles in pylephlebitis and venous thrombosis management across all publications each year (not limited to Nature Index journals).
Technical terms
Pylephlebitis: Infective thrombosis of the portal vein, typically secondary to intra-abdominal infection.
Portal vein: Vessel transporting blood from the gastrointestinal tract and spleen to the liver.
Thrombosis: Formation of a blood clot within a vessel, obstructing blood flow.
Anticoagulation: Therapy to inhibit clot propagation, commonly using heparin or direct oral anticoagulants.
Broad-spectrum antibiotic: Antimicrobial agent active against a wide array of bacteria, used empirically in severe or polymicrobial infections.
Mesenteric venous thrombosis: Clot formation in veins draining the small intestine or colon, risking bowel ischaemia.
References
- Pylephlebitis: A Systematic Review on Etiology, Diagnosis, and Treatment of Infective Portal Vein Thrombosis. Diagnostics (2023).
- Suppurative Thrombosis of the Portal Vein (Pylephlebits): A Systematic Review of Literature. Journal of Clinical Medicine (2022).
- Mesenteric venous thrombosis as a complication of appendicitis in an adolescent. Medicine (2019).
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