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Doctor insights on: No Down Syndrome But Av Canal Defect

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Av canal defect, can this cause down syndrome?

Av canal defect, can this cause down syndrome?

Other way around: Atrioventricular (av) canal defect is a relatively common congenital heart defect in children born with down syndrome. Down syndrome "causes" av canal defects, not the other way around. Av canal defect is a major congenital anomaly with the potential to cause severe symptoms. However, in most cases, av canal defect can be repaired. High levels of surgical skill is important for best outcomes. ...Read more

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Dr. Kathryn Akin
641 doctors shared insights

Down Syndrome (Definition)

Down syndrome is the classic presentation clinically of the congenital malformation syndrome also known as Trisomy 21. Classic features may include simian creases, epicanthal folds, upslanting palpebral fissures, flat nasal bridge, hypertelorism, low set ears, endocardial cushion defects of the heart, atlanto-axial joint instability, blood ...Read more


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Why are av canal defects associated with?Down syndrome?

Patterns: The extra chromosome in every cell causes confusion in the formation of every complex organ system of the body. The heart is quite complex, and the AV canal defect is more or less a failure of the heart to complete itself (the walls between chambers form near the end of the normal process).The pattern of facial features, hand features, etc all represent this pattern of interference in formation. ...Read more

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What do you do about an av canal defect in a child with ?Down syndrome ?

What do you do about an av canal defect in a child with ?Down syndrome ?

Surgey: The timing of repair depends on the health of the child and the degree of the defect. Your cardiologist and surgeon can discuss these options in more detail. ...Read more

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Does an av canal defect cause downs syndrome?

No: Av canal does not cause down syndrome, but av canal is one of the abnormalities that make up down syndrome (a syndrome is a group of abnormalities that appear together in affected persons). The cause of down syndrome is the presence of an extra chromosome #21. ...Read more

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What is the possible timing of repair of av canal defect with tetralogy of fallot in a child aged 3 months?

What is the possible timing of repair of av canal defect with tetralogy of fallot in a child aged 3 months?

depends:: As long as the child grows and gains weight, many cardiologists will put off surgery to make it technically easier and safer on the larger child. ...Read more

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What is the ideal timing of repair of av canal defect with tetralogy of fallot in a child 4 months old delivered premature , growing slowly ?

What is the ideal timing of repair of av canal defect with tetralogy of fallot in a child 4 months old delivered premature , growing slowly ?

Ideally 4-6 m: Ideally repair is carried out at 4-6 months of age. However, some babies may be very symptomatic requiring repair earlier. Many surgeons may prefer the baby to be 4-5 kg (9-12 lbs) before repair. Considering preemies start with a low birth weight and may have poor weight gain, then repair may be at an older age still within the first year of life. Caloric intake should be optimized until surgery. ...Read more

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With an av canal defect what is the normal?Oxygen saturation levels in an infant?

With an av canal defect what is the normal?Oxygen saturation levels in an infant?

Depends: Av canal defects are a cluster of seperate defects. The oxygen saturation would depend on which defect is present and to what degree. ...Read more

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How do they operate on an av canal?

How do they operate on an av canal?

With a patch: A-v canal defect is repaired by using a patch of material to reconstruct the septum (inside wall) of the heart and close the hole between the two ventricles and the two atria. Another important part of the operation is focused on division of the common a-v valve into well functioning mitral and tricuspid valves. ...Read more

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What is the outcome of av canal surgery ?

Some variation: Some are more extensive. So depending on size of septal defects and valvular involvements the corrective repair on cardiopulmonary bypass can be variable. Generally good results are possible. ...Read more

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