Total anomalous pulmonary venous connection (TAPVC) is a rare heart defect.
In a normal heart, the blood flows in from the body to the right atrium. It then goes into the right ventricle through the tricuspid valve. The blood travels to the lungs through the pulmonary valve to pick up fresh oxygen. Next, the blood returns to the left atrium, goes into the left ventricle, and goes out to the rest of the body.
With TAPVC, the pulmonary veins that return oxygen rich blood from the lungs connect to the right side of the heart instead of the left atrium. This leads to the mixing of oxygenated and de-oxygenated blood. The body tissue does not get as much oxygen as it is supposed to. TAPVC can be mild to severe. There can be a range of connection problems. Other heart problems may also be present.
Stein P. Total anomalous pulmonary venous connection. AORN J. 2007 Mar;85(3):509-520.
Total anomalous pulmonary venous connection. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/total-anomalous-pulmonary-venous-connection. Accessed March 10, 2021.
Total anomalous pulmonary venous connection (TAPVC). American Heart Association website. Available at: http://www.heart.org/HEARTORG/Conditions/CongenitalHeartDefects/AboutCongenitalHeartDefects/Total-Anomalous-Pulmonary-Venous-Connection-TAPVC_UCM_307039_Article.jsp. Accessed March 10, 2021.
Total anomalous pulmonary venous return. Johns Hopkins University, Cove Point Foundation website. Available at: http://www.pted.org/?id=tapvr1. Accessed March 10, 2021.
Last reviewed December 2020 by
EBSCO Medical Review Board
Kari Kassir, MD
Last Updated: 3/10/2021
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