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tetralogy of Fallot Line breaks: tet|ral¦ogy of Fal¦lot
Pronunciation: /ˈfaləʊ/

Definition of tetralogy of Fallot in English:


A congenital heart condition involving four abnormalities occurring together, including a defective septum between the ventricles and narrowing of the pulmonary artery, and accompanied by cyanosis.
Example sentences
  • Haemoptysis is a potentially lethal complication in adults who have been operated on for congenital heart disease, especially tetralogy of Fallot with pulmonary atresia with ventricular septal defect.
  • Right atrial enlargement is associated with chronic obstructive pulmonary disease, pulmonary hypertension, and congenital heart disease for example, pulmonary stenosis and tetralogy of Fallot.
  • Pulmonary valvuloplasty can also alleviate cyanotic spells in patients with tetralogy of Fallot whose pulmonary arteries are not yet large enough to undergo primary repair safely.


1920s: named after Etienne L. A. Fallot (1850–1911), French physician.

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