Fallot, tetralogy of

also called  Fallot tetrad 

      combination of congenital heart defects (congenital heart disease) characterized by hypoxic spells (which include difficulty in breathing and alterations in consciousness), a change in the shape of the fingertips (digital clubbing), heart murmur, and cyanosis, a bluish discoloration of the skin that gives rise to “blue baby” syndrome.

      Named for French physician Étienne-Louis-Arthur Fallot, who first described it in the late 19th century, tetralogy of Fallot is the result of a combination of a defect in the ventricular septum (the partition that separates the lower chambers of the heart), pulmonary stenosis (narrowing of the opening to the pulmonary artery), dilation and displacement of the aorta to override the ventricular septum, and right ventricular hypertrophy (thickening of the muscle of the right ventricle). This condition causes the deoxygenated venous blood to be shunted from the right to the left side of the heart into arterial circulation.

      Total correction of the condition is possible with surgical repair of the septal defect, removal of the obstruction to the right ventricular outflow, and opening of the right ventricle.

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Universalium. 2010.

Look at other dictionaries:

  • Fallot's tetralogy — (.)fal .ōz n TETRALOGY OF FALLOT * * * see tetralogy of Fallot …   Medical dictionary

  • Fallot tetrad — tetralogy of Fallot …   Medical dictionary

  • Tetralogy of Fallot — DiseaseDisorder infobox Name = Tetralogy of Fallot ICD10 = ICD10|Q|21|3|q|20 ICD9 = ICD9|745.2 ICDO = Caption = Diagram of a healthy heart and one suffering from tetralogy of Fallot OMIM = 187500 MedlinePlus = 001567 eMedicineSubj = emerg… …   Wikipedia

  • Tetralogy of Fallot — A combination of four heart defects that are present together at birth, accounting for about 10% of all congenital heart disease. The four defects that constitute the tetralogy of Fallot are: {{}}Ventricular septal defect (VSD) A hole between the …   Medical dictionary

  • Fallot-Tetralogie — Klassifikation nach ICD 10 Q21.3 Fallot Tetralogie Ventrikelseptumdefekt mit Pulmonalstenose oder atresie, Dextroposition der Aorta und Hypertrophie des rechten Ventrikels …   Deutsch Wikipedia

  • Fallot's pentalogy tetralogy (tetrad) trilogy — Fal·lot s pentalogy, tetralogy (tetrad), trilogy (fə lōzґ) [Йtienne Louis Arthur Fallot, French physician, 1850–1911] see under pentalogy, tetralogy, and trilogy …   Medical dictionary

  • Fallot's syndrome — noun a congenital heart defect producing cyanosis; characterized by four symptoms: pulmonary stenosis and ventricular septal defect and malposition of the aorta over both ventricles and hypertrophy of the right ventricle • Syn: ↑tetralogy of… …   Useful english dictionary

  • Fallot's tetralogy — noun a congenital heart defect producing cyanosis; characterized by four symptoms: pulmonary stenosis and ventricular septal defect and malposition of the aorta over both ventricles and hypertrophy of the right ventricle • Syn: ↑tetralogy of… …   Useful english dictionary

  • tetralogy of Fallot — noun a congenital heart defect producing cyanosis; characterized by four symptoms: pulmonary stenosis and ventricular septal defect and malposition of the aorta over both ventricles and hypertrophy of the right ventricle • Syn: ↑Fallot s… …   Useful english dictionary

  • Fallot'stetralogy — Fal·lot s tetralogy (fă lōzʹ) n. Tetralogy of Fallot. * * * …   Universalium

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