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  3. Congenital extrahepatic portosystemic shunt
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Congenital extrahepatic portosystemic shunt


Title


Other Names:
CEPS; Abernethy malformation
Categories:
Congenital and Genetic Diseases

Summary Summary


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Congenital extrahepatic portosystemic shunt (CEPS), also known as Abernethy malformation, occurs when blood vessels near the liver do not form correctly during fetal development.  The hepatic portal vein delivers blood to the liver; in CEPS, the portal vein may not develop or another blood vessel may attach to the portal vein, redirecting (shunting) blood away from the liver rather than through the liver. CEPS is divided into two types based on if blood can flow through the liver. In type 1, certain blood vessels in the liver are missing. In type 2, these blood vessels are present but they have abnormal connections.  Both types can be associated with other complications, such congenital heart disease, liver disease, nodules on the liver, and hepatic encephalopathy.[1][2]
Last updated: 6/20/2012

Symptoms Symptoms


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The symptoms of congenital extrahepatic portosystemic shunt (CEPS) vary and are caused by blood not moving through the liver.  The liver removes certain toxic chemicals from the blood; if a CEPS exists, these chemicals stay in the blood and can cause signs of liver disease or problems in the brain (hepatic encephalopathy).  Hepatic encephalopathy occurs more often in older people with CEPS.[1]
Last updated: 2/1/2012
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Diagnosis Diagnosis


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Congenital extrahepatic portosystemic shunt (CEPS) is often diagnosed during an ultrasound examination of an infant who shows signs of liver disease.  Otherwise, CEPS may be diagnosed by chance during an ultrasound done for other reasons.  A magnetic resonance angiography (MRA) may help to clarify a diagnosis of CEPS by allowing a physician to see the blood vessels of the liver; computer tomography (CT) angiography can also be helpful, but is less desirable as it includes radiation exposure.[1] 
Last updated: 2/1/2012

Treatment Treatment


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Because congenital extrahepatic portosystemic shunts (CEPS) are rare, there are no guidelines for standard treatment of this condition.[2]  Treatment is determined on an individual basis and depends on the type of CEPS.  In type I CEPS, liver transplantation is thought to be the only treatment.  Type II CEPS can be treated with surgery to close the connection between the hepatic portal vein and the hepatic vein, which would redirect bloodflow through the normal blood vessels within the liver.[1]
Last updated: 2/1/2012

Learn More Learn More


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These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.

In-Depth Information

  • PubMed is a searchable database of medical literature and lists journal articles that discuss Congenital extrahepatic portosystemic shunt. Click on the link to view a sample search on this topic.

News & Events News & Events


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News

  • NIH Hosts Rare Disease Day Event, Twitter Chat
    January 24, 2019

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References References


  1. Alonso-Gamarra E, Parrón M, Pérez A, Prieto C, Hierro L, López-Santamaría M. Clinical and radiologic manifestations of congenital extrahepatic portosystemic shunts: a comprehensive review. Radiographics. 2011; 31:707-722. http://www.ncbi.nlm.nih.gov/pubmed/21571652. Accessed 1/27/2012.
  2. Murray CP, Yoo SJ, Babyn PS. Congenital extrahepatic portosystemic shunts. Pediatric Radiology. 2003; 33:614-620. http://www.ncbi.nlm.nih.gov/pubmed/12879313. Accessed 1/27/2012.
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