National Organization for Rare Disorders, Inc.
It is possible that the main title of the report Hepatorenal Syndrome is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.
Hepatorenal syndrome (HRS) is a form of impaired kidney function that occurs in individuals with advanced liver disease. Individuals with hepatorenal syndrome do not have any identifiable cause of kidney dysfunction and the kidneys themselves are not structural damaged. Therefore, hepatorenal syndrome may be referred as a "functional" form of kidney impairment. In fact, if the kidney of an individual with hepatorenal syndrome were to be transplanted into an otherwise healthy individual, it would function normally. Hepatorenal syndrome is classified into to two distinct types. Type I is a rapidly progressive condition that leads to renal failure; type II does not have a rapid course.
Although the hepatorenal syndrome occurs in individuals with liver disease, the exact cause of the condition is unknown. Researchers have noted that blood circulation is abnormal in individuals with hepatorenal syndrome. The arteries that circulate oxygenated blood from the lungs to the rest of the body (systemic circulation) widen in contrast to the arteries of the kidney, which narrow causing a decrease in the blood flow through the kidney. Many affected individuals also have high blood pressure of the branches of the portal vein (portal hypertension), the main vein that carries blood from the intestines to the liver.
American Association of Kidney Patients
3505 E. Frontage Road, Suite 315
Tampa, FL 33607
American Kidney Fund, Inc.
6110 Executive Boulevard
Rockville, MD 20852
American Liver Foundation
75 Maiden Lane
New York, NY 10038
National Kidney Foundation
30 East 33rd Street
New York, NY 10016
NIH/National Kidney and Urologic Diseases Information Clearinghouse
3 Information Way
Bethesda, MD 20892-3580
Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
PO Box 241956
Los Angeles, CA 90024
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This is an abstract of a report from the National Organization for Rare Disorders, Inc. ® (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html