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Pylephlebitis associated with acute infected choledocholithiasis
Yu-Tzu Tsao1, Shih-Hua Lin2, Chih-Jen Cheng2
1Division of Gastroenterology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC.
Abstract:
Pylephlebitis, also called septic thrombophlebitis of the portal vein, is a life-threatening complication of intra-abdominal infection. Although rare, it remains a less recognized entity with a high rate of mortality. We present a 66-year-old man with acute infected choledocholithiasis complicated with Bacteroides fragilis bacteremia. The contrast-enhanced computed tomography scan of the abdomen showed nearly total thrombotic occlusion of the left portal vein. The comprehensive studies for hypercoagulation disorders all yielded negative results. After endoscopic extraction of bile duct stones and broad-spectrum antibiotic therapy, the patient recuperated with complete recanalization of the occluded portal vein. To our knowledge, pylephlebitis associated with acute infected choledocholithiasis has never been reported. This report details the clinical features, radiographic findings, pathogenesis, and treatment of this distinctly unusual manifestation. Early identification of pylephlebitis and underlying intra-abdominal infection can be achieved by exquisite imaging studies with raised awareness in the clinical setting. Eradication of infectious foci and judicious administration of antimicrobials are essential to reduce the catastrophic morbidity and mortality of pylephlebitis.
Insights
Pylephlebitis, a rare but fatal portal vein infection, was successfully treated in a patient with infected bile duct stones. Prompt diagnosis and treatment led to complete recovery and portal vein recanalization.
Area of Science:
- Gastroenterology and Hepatology
- Infectious Diseases
- Vascular Surgery
Background:
- Pylephlebitis, or septic thrombophlebitis of the portal vein, is a rare intra-abdominal infection with high mortality.
- It is often underdiagnosed due to its infrequent occurrence and non-specific symptoms.
Observation:
- A 66-year-old male presented with acute infected choledocholithiasis and Bacteroides fragilis bacteremia.
- Contrast-enhanced CT revealed near-total thrombotic occlusion of the left portal vein.
- Hypercoagulation disorder tests were negative.
Findings:
- Endoscopic extraction of bile duct stones and broad-spectrum antibiotics resulted in patient recovery.
- Complete recanalization of the previously occluded portal vein was observed.
- This case represents the first reported instance of pylephlebitis associated with acute infected choledocholithiasis.
Implications:
- Early identification of pylephlebitis through advanced imaging and clinical awareness is crucial.
- Prompt eradication of infectious foci and appropriate antimicrobial therapy are essential for reducing morbidity and mortality.
- This case highlights the importance of considering pylephlebitis in patients with intra-abdominal infections and biliary pathology.
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