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English: What is Tetralogy of Fallot? Tetralogy of Fallot (TOF) is a congenital heart condition characterized by four heart abnormalities—stenosis in the right ventricular outflow tract, right ventricular hypertrophy, ventricular septal defect, and aortic override of septal defect. Together, these can cause cyanosis in the newborn.
Tetralogy of Fallot (TOF), formerly known as Steno-Fallot tetralogy, [9] is a congenital heart defect characterized by four specific cardiac defects. [4] Classically, the four defects are: [ 4 ] pulmonary stenosis , which is narrowing of the exit from the right ventricle;
During pregnancy, prenatal ultrasound may reveal the abnormal course of the arch and this is the most common reason for identification of a right sided aortic arch nowadays. [3] Sometimes, when a right sided aortic arch is seen before birth, it can actually be a double aortic arch, sometimes a fetal MRI scan may be helpful if the ultrasound is ...
Ebstein's anomaly; Pathological specimen and ultrasound image of a heart with Ebstein's anomaly: Abbreviations: RA: right atrium; ARV: atrialized right ventricle; FRV: functional right ventricle; AL: anterior leaflet; SL: septal leaflet; LA: left atrium; LV: left ventricle; asterisk: grade II tethering of the tricuspid septal leaflet
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Defects in infundibulum development can result in a heart condition known as tetralogy of Fallot. A tendinous band extends upward from the right atrioventricular fibrous ring and connects the posterior surface of the infundibulum to the aorta .
The most typical form of APVS is a tetralogy of Fallot variant, [4] however, case studies have linked APVS to several different congenital cardiac syndromes, such as agenesis of ductus arteriosus, [5] persistent ductus arteriosus, [6] atrioventricular septal defect, [7] pulmonary branching abnormalities, [8] [9] transposition of the great arteries, [10] and type B interrupted aortic arch. [11]
The most common heart defects seen with VACTERL association are ventricular septal defect (VSD), atrial septal defects and tetralogy of Fallot. Less common defects are truncus arteriosus and transposition of the great arteries. It is subsequently thought that cardiac defects should be considered an extension of VACTERL. [4]