Atrioventricular canal defect


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Risk factors

By Mayo Clinic staff

Although the exact cause of atrioventricular canal defect is unknown, several factors may increase the risk of a congenital heart defect, such as:

  • Down syndrome in the baby. Down syndrome is a genetic condition resulting from an extra 21st chromosome.
  • German measles (rubella) or another viral illness during early pregnancy.
  • Having a parent who had a congenital heart defect.
  • Drinking alcohol during pregnancy.
  • Poorly controlled diabetes during pregnancy.
  • Taking some types of medications during pregnancy. Check with your doctor before taking any drugs while you're pregnant and even when you're trying to get pregnant.
Complications Causes
References
  1. Atrioventricular septal defect. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merckmanuals.com/professional/print/pediatrics/congenital_cardiovascular_anomalies/atrioventricular_septal_defect.html. Accessed July 26, 2012.
  2. Atrioventricular canal defect. American Heart Association. http://www.heart.org/HEARTORG/Conditions/CongenitalHeartDefects/AboutCongenitalHeartDefects/Complete-Atrioventricular-Canal-defect-CAVC_UCM_307023_Article.jsp. Accessed July 26, 2012.
  3. Atz AM, et al. Surgical management of complete atrioventricular septal defect: Associations with surgical technique, age, and trisomy 21. Journal of Thoracic and Cardiovascular Surgery. 2011;141:1371.
  4. Miller A, et al. Long term survival of infants with atrioventricular septal defects. Journal of Pediatrics. 2010;156:994.
  5. Warnes CA, et al. ACC/AHA 2008 guidelines for the management of adults with congenital heart disease. Journal of the American College of Cardiology. 2008;52:e143.
  6. Living with a congenital heart defect. National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/health-topics/topics/chd/livingwith.html. Accessed July 26, 2012.
  7. Rasiah SV, et al. Outcome following prenatal diagnosis of complete atrioventricular septal defect. Prenatal Diagnosis. 2008;28:95.
DS00745 Sept. 12, 2012

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