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Tetralogy of Fallot Online Mendelian Inheritance in Man … Digilio et al. (1997) calculated empiric risk figures for recurrence of isolated tetralogy of Fallot in families after exclusion of del (22q11). The investigation covered relatives of 102 patients. Their results showed that the frequency of congenital heart defect was 3% in sibs, 0.5% in parents, 0.3% in grandparents, 0.2% in uncles or aunts, and 0.6% in first cousins … Tetralogy of Fallot / Embryology Susan E. Day, M.D … Medical College of Wisconsin … Tetralogy of Fallot is the consequence of a single developmental abnormality: when aligning with the muscular septum, the infundibular septum is displaced anteriorly, resulting in a septal defect, anterior displacement of the aortic valve, right ventricular outflow tract obstruction, and subsequent right ventricular hypertrophy … Chromosomal anomalies, in particular deletions of chromosome 22, have been identified in some patients with classic TOF and TOF with pulmonary atresia. DiGeorge syndrome and conotruncal anomaly facies (velocardiofacial) syndrome are sometimes associated with tetralogy of Fallot … Tetralogy of Fallot / Clinical features Children's Hospital of Wisconsin … The volume of the shunt determines the degree of cyanosis … Minimal obstruction to flow through the right ventricular outflow tract, shunting will be predominately left to right, with little if any hypoxemia. This situation has been called "pink tetralogy." These children will have a high Qp:Qs ratio, with pulmonary overcirculation, and may exhibit signs of congestive heart failure. An infant with TOF will usually present with cyanosis soon after birth. If there is pulmonary atresia, intense cyanosis will occur very early as the ductus arteriosus closes … [S] The Baby with Tetralogy of Fallot University of Michigan ... Consists of four different heart defects … Ventricular septal defect (VSD) … Pulmonary Stenosis … The aorta being positioned over the ventricular septal defect instead of in the left ventricle … Ventricle in infants born with Tetralogy of Fallot is more muscular than normal … Some children with Tetralogy of Fallot have blue spells which are also called "tet spells" … More likely to occur after waking up … You may notice that when your baby cries, there is some change in color … If your child becomes blue either with crying, during feeding, or at other times, you should comfort your baby by picking him or her up and pulling the knees up to the chest … If your child does not regain color quickly after comfort … Otherwise, contact your cardiologist right away … [*] Tetralogy of Fallot By adam.com … Prenatal factors that … Include maternal rubella or other viral illnesses during pregnancy, poor prenatal nutrition, maternal alcoholism, mother over 40 years old, and diabetes. There is a higher incidence of Tetralogy of Fallot in children with Down Syndrome … [*][P] Adults with Tetralogy of Fallot - Repaired, Yes; Cured, No Editorial … The New England Journal of Medicine - August 26, 1993 - Vol. 329, No. 9 … There are approximately 500,000 adults with congenital heart disease in the United States, and each year another 10,000 children who have undergone surgical repair reach adulthood (1) … Largest diagnostic category among patients undergoing repair is isolated ventricular septal defect, followed by tetralogy of Fallot … The 32-year actuarial survival rate of 86 percent contrasts with the 52 percent cumulative survival for all patients born with tetralogy of Fallot who were initially evaluated during approximately the same period (1952 through 1963) … Preliminary results indicate that repair in infancy substantially improves cumulative survival, reduces the frequency of complications, and enhances the quality of life … Majority of adults with repaired tetralogy of Fallot are physically and emotionally well, a substantial number have residual problems and sequelae that require medical or surgical therapy and continued close surveillance … Major cardiac problems in adults with repaired tetralogy of Fallot are rhythm and conduction disorders … The most troublesome late complications are the rhythm and conduction disorders … 22q11 Deletion Syndrome Includes: Shprintzen Syndrome, DiGeorge Syndrome (DGS), Velocardiofacial Syndrome (VCFS) … GENE Clinics … Donna M. McDonald-McGinn, MS, CGC … Individuals with 22q11 deletion syndrome (del 22q11) have a range of findings, including congenital heart disease (74% of patients), particularly conotruncal malformations (tetralogy of Fallot, interrupted aortic arch, and truncus arteriosus); palatal abnormalities (69%), particularly velopharyngeal incompetence (VPI), submucosal cleft palate, and cleft palate; characteristic facial features (present in the majority of individuals); and learning difficulties (70 - 90%). Hypocalcemia and immune deficiency are typical but less common … Del 22q11 is diagnosed in individuals with … In situ hybridization (FISH) using DNA probes from the DiGeorge chromosomal region (DGCR) … Del 22q11 is inherited as a deletion syndrome. About 94% of probands have a de novo deletion of 22q11 and 6% have inherited the 22q11 deletion from a parent. Prenatal testing is possible for fetuses determined to be at 50% risk by family history … [Portuguese][P] Tetralogia de Fallot no Neonato Editorial ... Edmar Atik … São Paulo … Arquivos Brasileiros de Cardiologia 68(6):, 1997 … Os avanços do manejo clinico-cirúrgico da tetralogia de Fallot resultaram de medidas terapêuticas mais apropriaadas e, principalmente, da progressiva diminuição da época da correção operatória, hoje factível até no periodo neonatal … [*][S] Tetralogy of Fallot Mayo Clinic Rochester ... First described by a French physician, Dr. Etienne Fallot, in 1888. There are about 3000 babies born each year in the United States with Tetralogy of Fallot accounting for 10% of all congenital heart defects ... |
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