KnowraTetralogy of FallotLinked fromLinked fromThe 3 pages that link to Tetralogy of Fallot, each with the reason it gives.All 3Broader topic 2Related 1Congenital heart defectBroader topic: Its combination of defects can cause cyanosis and typically requires surgical repair.CyanosisBroader topic: Severe cases cause central cyanosis by allowing oxygen-poor blood to enter systemic circulation.Ventricular septal defectRelated: Its VSD is part of a four-feature syndrome, not an isolated defect.