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Definition
By Mayo Clinic staffTruncus arteriosus (TRUNG-kus ahr-teer-e-O-sus), or persistent truncus arteriosus, is a rare heart defect that's present at birth (congenital). If your baby has truncus arteriosus, one large vessel, instead of two separate vessels, leads out of the heart. Also, the two lower chambers of the heart are missing a portion of the wall dividing them. As a result of truncus arteriosus, oxygen-poor blood that should go to the lungs and oxygen-rich blood that should go to the rest of the body are mixed together. This creates severe circulatory problems.
If left untreated, truncus arteriosus is usually fatal during the first year of life. Surgery to repair the heart and blood vessels is generally successful, especially if the repair occurs before your baby is 2 months old.
- Hirsh JC, et al. Congenital heart disease. In: Doherty GM. Current Diagnosis and Treatment: Surgery. 13th ed. New York, N.Y.: McGraw-Hill; 2010. http://www.accessmedicine.com/content.aspx?aID=5215009. Accessed April 16, 2010.
- Specific cardiac defects. In: Libby P, et al. Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine. 8th ed. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/book/player/book.do?method=display&type=bookPage&decorator=header&eid=4-u1.0-B978-1-4160-4106-1..50064-9--cesec197&displayedEid=4-u1.0-B978-1-4160-4106-1..50064-9--cesec319&uniq=195744492&isbn=978-1-4160-4106-1&sid=984783871. Accessed April 16, 2010.
- Persistent truncus arteriosus. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merck.com/mmpe/print/sec19/ch287/ch287k.html. Accessed April 16, 2010.
- Sondheimer HM, et al. Cardiovascular diseases. In: Hay WW, et al. Current Diagnosis and Treatment: Pediatrics. 19th ed. New York, N.Y.: McGraw-Hill Medical; 2009. http://www.accessmedicine.com/content.aspx?aID=3402846. Accessed April 16, 2010.
- Truncus arteriosus. American Heart Association. http://www.americanheart.org/presenter.jhtml?identifier=11073. Accessed April 16, 2010.
- Congenital heart defects. March of Dimes. http://www.marchofdimes.com/professionals/14332_1212.asp. Accessed April 16, 2010.
- Koenig PR, et al. Congenital coronary artery abnormalities. http://www.uptodate.com/home/index.html. Accessed April 6, 2010.
- Sullivan KE. Chromosome 22q11.2 deletion syndrome: DiGeorge syndrome/velocardiofacial syndrome. Immunology and Allergy Clinics of North America. 2008;28:353.
- Cyanotic congenital heart disease: Lesions associated with increased pulmonary blood flow. In: Kliegman MD, et al. Nelson's Textbook of Pediatrics. 18th ed. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/das/book/body/195744492-3/0/1608/1010.html?tocnode=54483014&fromURL=1010.html#4-u1.0-B978-1-4160-2450-7..50433-3_8277. Accessed April 16, 2010.
- Verhaert D, et al. Truncus arteriosus with aortic arch interruption: Cardiovascular magnetic resonance findings in the unrepaired adult. Journal of Cardiovascular Magnetic Resonance. 2010;12:16.
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