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Patent ductus venosus: problems in assessment and management
M F Barsky1, R N Rankin, W J Wall
1Department of Radiology, University Hospital, University of Western Ontario, London.
Summary
A rare congenital portosystemic shunt, patent ductus venosus, can cause hepatic encephalopathy without severe liver disease. Careful portal vein assessment is crucial before shunt closure to prevent severe complications.
Area of Science:
- Vascular Surgery
- Hepatology
- Gastroenterology
Background:
- Congenital patent ductus venosus (PDV) is a rare portosystemic shunt.
- PDV can occur without significant liver disease but may lead to hepatic encephalopathy.
Observation:
- A 49-year-old male presented with recurrent hepatic encephalopathy.
- He had a diagnosed patent ductus venosus but minimal signs of chronic liver disease.
Findings:
- Surgical ligation of the PDV resulted in life-threatening complications.
- This highlights the potential risks associated with PDV intervention.
Implications:
- Thorough assessment of the portal venous system is essential prior to any attempt to ligate a PDV.
- This case underscores the importance of pre-procedural evaluation in managing rare vascular anomalies.