Important It is possible that the main title of the report Hypoplastic Left Heart 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.
Aortic and Mitral Atresia with Hypoplasic Left Heart Syndrome
Hypoplastic left heart syndrome is a term used to describe a group of closely related rare heart defects that are present at birth (congenital). The normal heart has four chambers. The two upper chambers, known as atria, are separated from each other by a fibrous partition known as the atrial septum. The two lower chambers are known as ventricles and are separated from each other by the ventricular septum. Valves connect the atria (left and right) to their respective ventricles. The valves allow for blood to be pumped through the chambers. Blood travels from the right ventricle through the pulmonary artery to the lungs where it receives oxygen. The blood returns to the heart through pulmonary veins and enters the left ventricle. The left ventricle sends the now oxygen-filled blood into the main artery of the body (aorta). The aorta sends the blood throughout the body.
Hypoplastic left heart syndrome is characterized by the underdevelopment (hypoplasia) of the chambers on the left side of the heart (i.e., left atrium and ventricle). In addition, the mitral valve, which connects these chambers to each other, is usually abnormally narrow (stenosis) or closed (atresia) and the aortic valve, which connects the heart to the major vessels that lead from the lungs (ascending aorta), may also be narrow or closed. Infants with hypoplastic left heart syndrome also have an abnormally narrow ascending aorta.
American Heart Association 7272 Greenville Avenue Dallas, TX 75231 Tel: (214)784-7212 Fax: (214)784-1307 Tel: (800)242-8721 Email: Review.email@example.com Internet: http://www.heart.org
NIH/National Heart, Lung and Blood Institute P.O. Box 30105 Bethesda, MD 20892-0105 Tel: (301)592-8573 Fax: (301)251-1223 Email: firstname.lastname@example.org Internet: http://www.nhlbi.nih.gov/
Kids With Heart ~ National Association for Children's Heart Disorders, Inc. 1578 Careful Dr. Green Bay, WI 54304 Tel: (920)498-0058 Fax: (920)498-0058 Tel: (800)538-5390 Email: email@example.com Internet: http://www.kidswithheart.org
Little Hearts, Inc. P.O. Box 171 110 Court Street, Suite 3A Cromwell, CT 06416 USA Tel: (860)635-0006 Fax: (860)635-0006 Tel: (866)435-4673 Email: firstname.lastname@example.org Internet: http://www.littlehearts.org
Birth Defect Research for Children, Inc. 976 Lake Baldwin Lane Orlando, FL 32814 USA Tel: (407)895-0802 Email: email@example.com Internet: http://www.birthdefects.org
Congenital Heart Information Network (C.H.I.N.) P.O. Box 3397 Margate City, NJ 08402-0397 Tel: (609)823-4507 Fax: (609)822-1574 Email: firstname.lastname@example.org Internet: http://www.tchin.org
Genetic and Rare Diseases (GARD) Information Center PO Box 8126 Gaithersburg, MD 20898-8126 Tel: (301)251-4925 Fax: (301)251-4911 Tel: (888)205-2311 TDD: (888)205-3223 Internet: http://rarediseases.info.nih.gov/GARD/
Madisons Foundation PO Box 241956 Los Angeles, CA 90024 Tel: (310)264-0826 Fax: (310)264-4766 Email: email@example.com Internet: http://www.madisonsfoundation.org
Fetal Hope Foundation 9786 South Holland Street Littleton, CO 80127 USA Tel: (303)932-0553 Tel: (877)789-4673 Email: firstname.lastname@example.org Internet: http://www.fetalhope.org
For a Complete Report
This is an abstract of a report from the National Organization for Rare Disorders (NORD). A copy of the complete report can be downloaded free from the NORD website for registered users. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational therapies (if available), and references from medical literature. For a full-text version of this topic, go to www.rarediseases.org and click on Rare Disease Database under "Rare Disease Information".
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It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report
This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.
For additional information and assistance about rare disorders, please contact the National Organization for Rare Disorders at P.O. Box 1968, Danbury, CT 06813-1968; phone (203) 744-0100; web site www.rarediseases.org or email email@example.com
Last Updated: 9/17/2007 Copyright 1986, 1993, 1994, 1996, 2003, 2007 National Organization for Rare Disorders, Inc.
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