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Doctor insights on: Neural Tubes

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What is the best neural tube defect test?

What is the best neural tube defect test?

NTD: The "best" test is an amniotic fluid AFP concentration. That picks up about 90% of open neural tube defects. However, an ultrasound examination also picks up the majority of open neural tube defects. ...Read more

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What are the tests for neural tube defect?

What are the tests for neural tube defect?

Ultrasound, MSAFP.: Prenatal ultrasound should have >90% sensitivity for open neural tube defect detection around 20 weeks. Earlier (>16 weeks) risk stratification can occur with screening maternal blood for AFP - although that is not diagnostic and has to be followed by ultrasound for confirmation and/or differential diagnosis. Fetal MRI is used as part of evaluation for possible fetal surgery to treat spina bifida. ...Read more

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I want to know what's the neural tube defect test?

2 tests: To diagnose a neural tube defect the two most useful tests are 1) The mother's blood level of a protein that lines the inner surface of the developing spinal cord in the fetus, called alpha fetoprotein, and 2) a fetal or newborn ultrasound of the spinal canal itself. Other radiologic tests such as X-Ray films, CT scans, and MRI scans help to get a clearer picture of the neural tube defect ...Read more

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What is the definition or description of: Neural tube defect?

Neural tube defect: Neural tube defects are birth defects of the brain, spine, or spinal cord. They happen in the first month of pregnancy, often before a woman even knows that she is pregnant. The most common neural tube defects are spina bifida, anencephaly, and encephalocele. ...Read more

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What is the chance of having another child with a neural tube defect?

8x greater risk: It has been shown that having a child with a neural tube defect increases the chance of having a second child with a similar defect. The recurrence risk in this situation is 8 times greater than the risk if no such history was present. Also if there is any family history of neural tube defects there is an increased risk of an affected pregnancy even if not immediate relative (2cd or 3d degree). ...Read more

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I have a high positive for increased open neural tube defect, now what?

Additional screening: A positive initial screening test should be followed by a more involved and dependable test looking for this possibility.A diagnostic high resolution ultrasound can be performed that can evaluate baby from top to bottom and see if there is any direct evidence of a problem. Discussion of these findings with a geneticist or perinatologist may then be needed if the problem is not excluded by the test. ...Read more

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What are the differences between the neural tube and the dorsal nerve cord?

What are the differences between the neural tube and the dorsal nerve cord?

Neural tube vs DNC: Same thing. Read about Neural Tube. You'll learn more ! Read about the sonic hedgehog and how it influences the development of the ventral portions of the neural tube. This is amazing stuff. We've learned a lot about the nitty gritty of embryology in the past 5 years ! ...Read more

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Which is the chance of having more then one child with a neural tube defect?

Which is the chance of having more then one child with a neural tube defect?

NT defect: This depends on the cause of the defect, but overall, your risk for a second child with a neural defect increases after you have a child with a defect. Your OB will likely suggest taking a higher dose of folic acid when you are thinking of conceiving. ...Read more

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What kind of likelihood is there of having more then one child with a neural tube defect?

It varies: If parents have had one child with a neural tube defect their risk of having another child with a defect is about 3 %. If they have had two children with the defect their risk increases to about 7 %. A parent who has a neural tube defect also has about a 3 % risk of having a child with a neural tube defect. All of these risks can be lowered significantly by maternal Folic Acid ingestion. ...Read more

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What are neural tube defects?

NTD: Neural tube defects are a host of lesions that affect the spinal cord. They vary in degree from spina bifida occulta ( mildest ) to craniorrachischis totalis ( severest), spina bifida, and myelomengocele being the most frequently encountered. They have been linked to a diet deficient in folate (folic acid) during pregnancy. ...Read more

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