Tetralogy of Fallot consists of 4 features: a large ventricular septal defect, right ventricular outflow tract obstruction, pulmonic valve stenosis, right ventricular hypertrophy, and over-riding of the aorta. Symptoms include cyanosis, dyspnea with feeding, poor growth, and hypercyanotic tet spells (sudden, potentially lethal episodes of severe cyanosis). A harsh systolic murmur at the left upper sternal border with a single 2nd heart sound (S2) is common. Diagnosis is by echocardiography. Definitive treatment is surgical repair.
(See also Overview of Congenital Cardiovascular Anomalies.)
Tetralogy of Fallot (see figure Tetralogy of Fallot) accounts for 7 to 10% of congenital heart anomalies. Associated anomalies include right aortic arch (25%), abnormal coronary artery anatomy (5 to 10%), stenosis of the pulmonary artery branches, presence of aorticopulmonary collateral vessels, patent ductus arteriosus, complete atrioventricular septal defect, atrial septal defect, additional muscular ventricular septal defects (VSDs), and aortic valve regurgitation.
Tetralogy
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A group or series of four dramatic pieces, three tragedies andone satyric, or comic, piece (or sometimes four tragedies),represented consequently on the Attic stage at the Dionysiacfestival.
Tetralogy meaning & definition 1 of Tetralogy.
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The word overly sensitive linguists and people with a fixed attitude to language use (or pretensious posh people) use instead of quadrilogy, because quadrilogy is a mixture of Latin and Greek and therefore awfully awkward to say, darling.
Tetralogy is a word that means aTetralogy meaning & definition 2 of Tetralogy.
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