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Doctor insights on: Ultrasound Shows Anencephaly

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When does ancephaly develop? What age should they see it on ultrasound?

When does ancephaly develop? What age should they see it on ultrasound?

Absent brain: Most of the major organs have formed by 8-12 weeks so it may be possible to detect some defect at this early age. Certainly with the blood tests for neural tube defects, the fetus is large enough by 18-20 weeks to tell for sure, which is when most fetal anatomy us take place. ...Read more

Dr. Michael Gabor
2,190 doctors shared insights

Sonogram (Definition)

An ultraound, also known as a sonogram, is a painless and relatively inexpensive imaging test that utilizes sound waves instead of ionizing radiation. There are no side effects. Ultrasound can give us two-dimensional, and in some applications three-dimensional, images of structures and organs in virtually any part of the body. In addition to diagnostic uses, such as evaluating abnormalities in the abdomen, pelvis, and breast, ultrasounds are commonly used to guide needle and catheter placement in a variety of surgical ...Read more


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What is the main cause of anencephaly?

What is the main cause of anencephaly?

3 weeks after con-: ception, an embryo's neural plate develops a midline groove; its edges over-fold & close to form a neural tube. Anencephaly is the most severe of the Neural Tube Defects caused by interaction of one of several genes with environmental factors. Low maternal folate (folic acid) level at conception is a main cause; MTHFR, a main gene iinvolved. Fertile women who take daily Folic Acid have lower risk of NTD's. ...Read more

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What are the tests that indicate anencephaly?

What are the tests that indicate anencephaly?

Anencephaly: Anencephaly is a serious birth defect where the brain does not form and the top of the skull is open. It is an extreme form of a neural tube defect. Tests which can indicate anencephaly are an ultrasound examination. A blood test called msafp can be drawn at 15 weeks also. ...Read more

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Does anyone know if anencephaly is a genetic disease?

Does anyone know if anencephaly is a genetic disease?

Not genetic: We don't know why anencephaly happens, but it is not genetic. It may be in part due to a mother not having enough Folic Acid in her diet. ...Read more

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What is the difference between spina bifida and anencephaly?

The position: The developing brain and spinal cord go through a predictable pattern.The primitive neural tissue folds on itself to begin forming the spinal elements. It actually closes the fold starting in the middle and progresses toward the top and bottom. Like closing a zipper from the middle out. If the fold doesn't close at the tom, anencephaly develops. If it doesn't close at the bottom. Spina bifida. ...Read more

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I lost a daughter to anencephaly 5 months ago. I would love to get pregnant again, but I am very scared?.Is there anyway anencephaly can happen again

Yes,but: Your original risk was that of the general population that runs 1/1000 live births, but your recurrence risk climbs to 4%. There are various nutritional & genetic factors that go into your overall risk of some unexpected outcome with pregnancy & a visit to a geneticist affiliated with a med school or children's hospital may be your best information source. Take time to grieve but don't give up. ...Read more

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What can I do to treat anencephaly?

What can I do to treat anencephaly?

Comfort care only!: Nobody can nor should help prolong the "lives" of these poor neonates. Anencephalic newborns are devoid of any chance of meaningful interaction with the environment and never attain consciousness. Comfort care is all that is ethically permissible for these dramatic cases. Take 4-5 mg daily of Folic Acid daily throughout your reproductive life, to prevent this from recurring in future pregnancies. ...Read more

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What are the tests for anencephaly?

Ultrasound.: Only expert prenatal ultrasound can reliably detect anencephaly after the first trimester of pregnancy. Amniotic fluid Alpha fetoprotein and acetylcholinesterase can also help reach the diagnosis. ...Read more

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What sort of problem is anencephaly?

What sort of problem is anencephaly?

Failure of closure: The fetus is busy around 20-30 days in when the nervous system starts forming along a line like a trench. The trench folds in on itself and begins to form a tube, sealing itself in the middle first and moving toward both ends like two zippers. When the top end fails to close, many brain structures don't form & we have anencephaly.At the bottom, we get spina bifida. ...Read more

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What are the symptoms of anencephaly?

What are the symptoms of anencephaly?

None.: The mother usually has no symptoms when she is carrying an anencephalic infant, however this is a lethal fetal anomaly. Its recurrence in future pregnancies can be prevented with daily use of Folic Acid at 4-5 mg. ...Read more

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Dr. Richard Roberts
58 doctors shared insights

Anencephaly (Definition)

Anencephaly is a severe problem where the head of a fetus fails to develop normally. Usually, most of ...Read more