Risk factorsBy Mayo Clinic staff
In most cases, the exact cause of a congenital heart defect, such as tricuspid atresia, is unknown, but several factors may increase the risk of a baby being born with this condition:
- A mother who had German measles (rubella) or another viral illness during early pregnancy
- A parent who has a congenital heart defect
- Drinking alcohol during pregnancy
- A mother who has poorly controlled diabetes
- Use of some types of medications during pregnancy, such as the acne drug isotretinoin (Claravis, Sotret) and some anti-seizure medications
- The presence of Down syndrome, a genetic condition that results from an extra 21st chromosome
- Single-ventricle defects. American Heart Association. http://www.heart.org/HEARTORG/Conditions/CongenitalHeartDefects/AboutCongenitalHeartDefects/Single-Ventricle-Defects_UCM_307037_Article.jsp. Accessed Sept. 13, 2012.
- Hay WW, et al.. Current Diagnosis & Treatment: Pediatrics. 20th ed. New York, N.Y.: The McGraw-Hill Companies; 2011. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=14. Accessed Sept. 13, 2012.
- Congenital heart defects. March of Dimes. http://www.marchofdimes.com/baby/birthdefects_congenitalheart.html. Accessed Sept. 9, 2012.
- Tricuspid atresia. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merckmanuals.com/professional/print/pediatrics/congenital_cardiovascular_anomalies/tricuspid_atresia.html. Accessed Sept. 13, 2012.
- Ohuchi H, et al. Long-term serial aerobic exercise capacity and hemodynamic properties in clinically and hemodynamically good, "excellent," Fontan survivors. Circulation Journal. 2012;76:195.
- Berg C, et al. Prenatal diagnosis of tricuspid atresia: Intrauterine course and outcome. Ultrasound in Obstetrics and Gynecology. 2010;35:183.
- Crawford MH, ed. Current Diagnosis & Treatment: Cardiology. 3rd ed. New York, N.Y.: The McGraw-Hill Companies; 2009. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=8. Accessed Sept. 13, 2012.
- Infective endocarditis. American Heart Association. http://www.heart.org/HEARTORG/Conditions/CongenitalHeartDefects/TheImpactofCongenitalHeartDefects/Infective-Endocarditis_UCM_307108_Article.jsp. Accessed Sept. 9, 2012.