A. Is so called because there are 4 diagnostic features B. May have pulmonary atresia C. Shows overriding of the aorta D. Features first described by √Čtienne-Louis Fallot in 1888 E. Is characterised by spells
Is so called because there are 4 diagnostic features May have pulmonary atresia Shows overriding of the aorta Is characterised by spells
Pulmonary stenosis is the cardinal feature, but in its most extreme manifestation there may be full atresia. Overriding of the aorta, along with VSD and right ventricular hypertrophy are the other features that make up the 4 part description. Numerous descriptions of these features were made before Fallots more comprehensive description, including one by Scotlands own William Hunter. Spells are episodes of pulmonary artery spasm causing acute hypoxia.