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Published on: December 23, 2022
The congenital porto-caval fistula: a unique presentation and novel intervention
Wynton Hoover1, Veda Ackerman, Marcus Schamberger
1Division of Pediatric Pulmonology, Riley Hospital for Children, Indiana University, Indianapolis, Indiana, USA. whoover@Peds.UAB.edu
Insights
Congenital porto-caval fistula caused severe pulmonary hypertension and hyperammonemia in a teen. Endovascular stent placement successfully treated the fistula, resolving symptoms and improving cognitive function.
Area of Science:
- Vascular Surgery
- Pediatric Cardiology
- Hepatology
Background:
- Congenital porto-caval fistulas are rare vascular anomalies.
- These malformations can present with diverse symptoms across all age groups.
Observation:
- A 14-year-old male presented with dyspnea and cough.
- He had a history of chronic hemolytic anemia, thrombocytopenia, coagulopathy, and learning disability.
Findings:
- The patient was diagnosed with severe pulmonary hypertension and hyperammonemia due to a large congenital porto-caval fistula.
- Endovascular covered stent placement in the vena cava successfully occluded the abnormal vessel.
Implications:
- Successful treatment led to remarkable improvement in pulmonary hypertension.
- Normalization of anemia, thrombocytopenia, and ammonia levels allowed for enhanced cognitive performance.
Abstract:
Congenital porto-caval fistulas are uncommon vascular malformations with a varied clinical presentation beginning in infancy and spanning late adulthood. We report a 14-year-old male who presented with dyspnea and cough. His past medical history was significant for a chronic non-immune hemolytic anemia, thrombocytopenia, coagulopathy and a learning disability. He was found to have severe pulmonary hypertension and hyperammonemia associated with a large congenital porto-caval fistula. The abnormal vessel was occluded via endovascular covered stent placement in the vena cava. His pulmonary hypertension has improved remarkably while his chronic anemia, thrombocytopenia and ammonia have normalized to allow improved cognitive performance.
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