Prenatal Exposures and Heart Defects

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Questions and Answers

Which congenital heart defect is primarily associated with prenatal alcohol exposure?

  • Supravalvular aortic stenosis
  • Coarctation of aorta
  • Aortic regurgitation
  • Ventricular Septal Defect (VSD) (correct)

What is a common heart defect associated with Turner syndrome?

  • Bicuspid aortic valve (correct)
  • Truncus arteriosus
  • Mitral Valve prolapse
  • Tetralogy of Fallot

Which genetic syndrome is associated with both Tetralogy of Fallot and Truncus arteriosus?

  • Di George Syndrome (correct)
  • Williams syndrome
  • Marfan syndrome
  • Down syndrome

Congenital rubella can lead to which of the following heart defects?

<p>Septal defects and Patent Ductus Arteriosus (PDA) (A)</p> Signup and view all the answers

Which congenital heart defect is NOT typically associated with maternal diabetes during pregnancy?

<p>Atrial Septal Defect (ASD) (A)</p> Signup and view all the answers

Which congenital heart defect is associated with Di George Syndrome?

<p>Truncus arteriosus (B)</p> Signup and view all the answers

What heart defect is least likely associated with congenital rubella?

<p>Mitral Valve Prolapse (C)</p> Signup and view all the answers

Which exposure is NOT linked to Ventricular Septal Defect (VSD)?

<p>Turner syndrome (C)</p> Signup and view all the answers

Which syndrome is ONLY associated with a specific type of congenital heart defect?

<p>Williams syndrome (A)</p> Signup and view all the answers

Which of the following congenital heart defects is NOT frequently observed in infants of diabetic mothers?

<p>Coarctation of aorta (A)</p> Signup and view all the answers

What congenital heart defect is commonly associated with Marfan syndrome?

<p>Aortic regurgitation (C)</p> Signup and view all the answers

Which of the following heart defects is specifically associated with Turner syndrome?

<p>Bicuspid aortic valve (A)</p> Signup and view all the answers

Which defect is associated with fetal alcohol syndrome?

<p>Septal Defects (VSD and ASD) (C)</p> Signup and view all the answers

What is the relationship between congenital rubella and congenital heart defects?

<p>Congenital rubella is linked to a range of Septal Defects and PDA (C)</p> Signup and view all the answers

Which of the following genetic syndromes is associated with both Tetralogy of Fallot and Truncus arteriosus?

<p>Di George Syndrome (A)</p> Signup and view all the answers

Flashcards

Fetal Alcohol Syndrome (FAS) exposure

Prenatal exposure to alcohol can cause heart defects like VSD, ASD, PDA, and Tetralogy of Fallot.

Prenatal Diabetes Exposure

A pregnant mother with diabetes could potentially lead to congenital heart defects like VSD, transposition of great arteries, truncus arteriosus, or tricuspid atresia in the child.

Congenital Rubella Exposure

Rubella infection in the mother during pregnancy can cause congenital heart defects and other birth defects like septal defects (VSD, ASD), PDA, and pulmonary stenosis.

Marfan Syndrome Heart Defects

Genetic condition Marfan syndrome is associated with mitral valve prolapse, aortic regurgitation, thoracic aortic aneurysm, or thoracic dissection.

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Down Syndrome Heart Defect

Down syndrome (Trisomy 21) is associated with atrial septal defects (ASD) and ventricular septal defects (VSD).

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Prenatal Lithium Exposure

Exposure to lithium during pregnancy is associated with congenital heart defects, but the specific defects are unknown.

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Prenatal Alcohol Exposure (FAS)

Exposure to alcohol during pregnancy can lead to Fetal Alcohol Syndrome (FAS), which is associated with heart defects like VSD, ASD, PDA, and Tetralogy of Fallot.

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Infant of Diabetic Mother

Babies born to mothers with diabetes during pregnancy are at increased risk of heart defects like VSD, transposition of great arteries, truncus arteriosus, and tricuspid atresia.

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Congenital Rubella

Congenital rubella, a viral infection during pregnancy, is linked to heart defects like septal defects (VSD, ASD, AV), PDA, and pulmonary stenosis.

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What is Ebstein Anomaly?

Ebstein Anomaly is a rare heart defect where the tricuspid valve is malformed, causing a large right atrium and a small right ventricle.

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Prenatal Alcohol Exposure

Exposure to alcohol during pregnancy can increase the risk of specific heart defects in the baby, such as VSD, ASD, PDA, and Tetralogy of Fallot.

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Diabetes in Pregnancy

Babies born to mothers with diabetes during pregnancy are at increased risk of certain heart defects, including VSD, Transposition of great arteries, Truncus arteriosus, and Tricuspid atresia.

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Marfan Syndrome

Marfan Syndrome is a genetic disorder associated with specific heart defects, including Mitral Valve prolapse, Aortic regurgitation, Thoracic aortic aneurysm, and Thoracic dissection.

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Down Syndrome

Down Syndrome (Trisomy 21) is associated with heart defects like AV septal defect (endocardial cushion defect), Atrial Septal Defect (ASD), and Ventricular Septal Defect (VSD).

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Study Notes

Prenatal Exposures and Congenital Heart Defects

  • Prenatal lithium exposure can contribute to congenital heart defects.
  • Prenatal alcohol exposure (fetal alcohol syndrome) can lead to congenital heart problems.
  • Infants of mothers with diabetes during pregnancy are at increased risk of congenital heart defects.
  • Congenital rubella can cause sensorineural hearing loss and cataracts in addition to heart defects.
  • Marfan syndrome is a genetic disorder that can affect the heart.
  • Turner syndrome is associated with potential cardiac problems.
  • Williams syndrome is linked to specific cardiac malformations.
  • DiGeorge syndrome (22q11) can cause cardiac anomalies.
  • Down syndrome (Trisomy 21) is associated with congenital heart defects.

Specific Congenital Heart Defects

  • Ebstein anomaly: characterized by a downward displacement of the tricuspid valve.
  • Ventricular Septal Defect (VSD): a hole in the wall between the lower chambers of the heart.
  • Atrial Septal Defect (ASD): a hole in the wall between the upper chambers of the heart.
  • Patent Ductus Arteriosus (PDA): failure of the fetal blood vessel (ductus arteriosus) to close after birth.
  • Tetralogy of Fallot: a combination of four heart defects.
  • Transposition of great arteries: the major blood vessels are switched.
  • Truncus arteriosus: a single large vessel emerges from both ventricles.
  • Tricuspid atresia: the tricuspid valve is missing or abnormally formed.
  • Septal defects (VSD, ASD, AV canal defect) include a range of holes in the cardiac septum.
  • Pulmonary artery stenosis: narrowing of the pulmonary artery.
  • Mitral valve prolapse (MVP): a condition where the mitral valve bulges into the left atrium during contraction of the heart.
  • Aortic regurgitation: backward flow of blood through the aortic valve.
  • Thoracic aortic aneurysm: a bulge in the aorta that can grow over time.
  • Thoracic aortic dissection: a tear in the aorta, potentially life-threatening.
  • Bicuspid aortic valve: a condition where aortic valve has two leaflets instead of three.
  • Coarctation of aorta: a narrowing of the aorta, usually near the ductus arteriosus.
  • Supravalvular aortic stenosis: narrowing of a section of the aorta above the aortic valve.
  • AV septal defect: (endocardial cushion defect) affects both the AV valve and the septal area, potentially causing both ventricular and atrial septal damage.

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