Doctor insights on:
Is It A Neural Tube Defect If Your Sacral Dimple Is Bottomless
Neural tube defects is a birth defect in which a baby is born with some splitting of his spine and/or spinal cord structures. The problem can occur anywhere along the spine, but "spina bifida" at the bottom of the spine is the more common condition. Women take folic acid (a vitamin) before and during pregnancy to decrease the chances of their babies ...Read more
If a sacral dimple is closed and is just a skin dimple, does this mean the child has a neural tube defect underneath?
Sacral dimple: Most of the time, sacral dimples are harmless and don't require any treatment. Rarely, a sacral dimple may indicate a serious underlying abnormality of the spine or spinal cord. To rule out any abnormality, your child's doctor may recommend an imaging test. If an abnormality is discovered, treatment depends on the underlying cause. ...Read moreSee 2 more doctor answers
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 moreSee 1 more doctor answer
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
MSAFP and ultrasound: Maternal serum Alpha fetoprotein at 16 weeks and detailed ultrasound at 18-20 weeks should detect fetal open neural tube defects with 96% accuracy. Closed neural tube defects are more difficult to diagnose but are more innocuous too. ...Read more
No: The more accepted term is chiari malformation as arnold-chiari is an older term. This type of malformation is not a neural tube defect, but rather an abnormal migration of the cerebellar tonsils below the level of the foramen magnum (chiari type 1). This defect is attributed to a congenitally small posterior fossa, thus allowing the cerebellar tonsils to migrate downward. ...Read more
Both or neither.: While neural tube disorders can be a genetic mutation (gene is a functional unit of heredity occupying a specific spot--locus--on a chromosome), they occur most commonly in the setting of Folic Acid deficiency during pregnancy--hence prenatal vitamins with folic acid. Ntds occur in 1/1000 births, and range from spina bifida occulta to anencephaly. ...Read more
Yes and more: Neural tube defects can be brought on by genetics, nutrition, and environmental factors. Women who are deficient in Folic Acid before or during pregnancy are at a higher risk for neural tube defects. Women who are obese, have poorly controlled diabetes, or take medication such as Dilantin, Tegretol, or Depakote are at higher risk for neural tube defects or anencephaly. I hope this helps. Take c ...Read more
Can you tell me what it mean: a neural tube defect or pre-eclampsia, because screening does not detect all affected preg?
Neural Tube Defects : are malformations of the fetal spinal cord, brain & vertebrae that occur the 3rd-8th week of pregnancy. The most common NTD is Spina Bifida, a split of the vertebral arches; 90% of cases are diagnosed on fetal ultrasound before 18 weeks' gestation. Pre-eclampsia, with maternal high blood pressure, edema, protein in the urine, & more, usually starts after 20 weeks & can harm mother & fetus. ...Read more
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