Aortopulmonary collaterals
A major aortopulmonary collateral artery ( . Closely : Major aortopulmonary collateral artery or Main aortopulmonary collateral artery , MAPCA ) is a short-circuit connection between the chest aorta - rare subclavian artery , mammary artery or intercostal arteries - and pulmonary arteries . Aortopulmonary collaterals are either created prenatally or arise after operations that change the circulation (e.g. Fontan's operation ). Usually they tend to develop stenoses . Otherwise, they lead to overpressure in the pulmonary circulation and bleeding that is difficult to treat.
Since this bypass circuit is often hemodynamically undesirable, MAPCAs are usually closed by cardiac catheter interventions with the help of coils .
Individual evidence
- ↑ Nikolaus A. Haas, Ulrich Kleideiter: Kinderkardiologie. Clinic and practice of heart disease in children, adolescents and young adults. Thieme, Stuttgart et al. 2011, ISBN 978-3-13-149001-8 , p. 165.