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Published on: June 15, 2020
Congenital portosystemic vascular malformations
Florent Guérin1, Thomas Blanc, Frédéric Gauthier
1Department of Pediatric Surgery, Bicêtre Hospital, Paris, France. florent.guerin-chir@bct.aphp.fr
Insights
Congenital portosystemic shunts are rare liver vascular malformations diverting blood from the liver. This review covers their symptoms, treatments like surgery or transplantation, and future research directions.
Area of Science:
- Vascular Surgery
- Pediatric Surgery
- Hepatology
Background:
- Congenital portosystemic shunts (CPSS) are abnormal connections between the portal and systemic veins.
- These developmental anomalies occur during early gestation (4-8 weeks), often associated with cardiac defects.
- CPSS are classified as end-to-side (Type I) or side-to-side (Type II).
Purpose of the Study:
- To review the clinical presentation and complications of CPSS.
- To discuss current therapeutic strategies, including surgical and endovascular interventions.
- To explore the role of liver transplantation and identify future research avenues.
Main Methods:
- Literature review focusing on congenital portosystemic shunts.
- Analysis of clinical manifestations, diagnostic approaches, and treatment outcomes.
- Synthesis of information on surgical, endovascular, and transplant management.
Main Results:
- CPSS present with diverse symptoms and potential serious complications.
- Both surgical and endovascular techniques offer viable treatment options.
- Liver transplantation is reserved for complex or refractory cases.
Conclusions:
- Understanding CPSS pathophysiology is crucial for timely diagnosis and management.
- Multidisciplinary approaches are essential for optimizing patient outcomes.
- Further research is needed to refine treatment strategies and address current controversies.
Abstract:
Congenital portosystemic shunts are developmental abnormalities of the portal venous system resulting in the diversion of portal blood away from the liver to the systemic venous system. Such malformations are believed to come from an insult occurring between the fourth and eighth week of gestation during the development of hepatic and systemic venous systems, and could explain their frequent association with cardiac and other vascular anomalies. They are currently categorized into end-to-side shunts (type I) or side-to-side shunts (type II). This article aims to review the common symptoms and complications encountered in congenital portosystemic shunts, the surgical and endovascular treatment, and the role of liver transplantation in this disease. We will also focus on the current controversies and the areas where there is potential for future studies.
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