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Frequency. 1 in 4600 in the U.S. Anencephaly is the absence of a major portion of the brain, skull, and scalp that occurs during embryonic development. [ 1] It is a cephalic disorder that results from a neural tube defect that occurs when the rostral (head) end of the neural tube fails to close, usually between the 23rd and 26th day following ...
Fetal distress, also known as non-reassuring fetal status, is a condition during pregnancy or labor in which the fetus shows signs of inadequate oxygenation. [ 1] Due to its imprecision, the term "fetal distress" has fallen out of use in American obstetrics. [ 2][ 1][ 3] The term "non-reassuring fetal status" has largely replaced it. [ 4]
Acalvaria. Acalvaria. Specialty. Medical genetics. Acalvaria is a rare malformation consisting of the absence of the calvarial bones, dura mater and associated muscles in the presence of a normal skull base and normal facial bones. The central nervous system is usually unaffected. The presumed pathogenesis of acalvaria is the faulty migration ...
Immune tolerance in pregnancy or maternal immune tolerance is the immune tolerance shown towards the fetus and placenta during pregnancy. This tolerance counters the immune response that would normally result in the rejection of something foreign in the body, as can happen in cases of spontaneous abortion. [ 1][ 2] It is studied within the ...
Medical genetics. Holoprosencephaly ( HPE) is a cephalic disorder in which the prosencephalon (the forebrain of the embryo) fails to develop into two hemispheres, typically occurring between the 18th and 28th day of gestation. [ 1] Normally, the forebrain is formed and the face begins to develop in the fifth and sixth weeks of human pregnancy.
Then at 20 weeks, she went in for an ultrasound. The technician left the room and came back with the doctor. They told them the baby had anencephaly, which means she was missing parts of her skull ...
heart failure, splenomegaly. Hemolytic disease of the newborn, also known as hemolytic disease of the fetus and newborn, HDN, HDFN, or erythroblastosis fetalis, [1] [2] is an alloimmune condition that develops in a fetus at or around birth, when the IgG molecules (one of the five main types of antibodies) produced by the mother pass through the ...
According to a study conducted by Whitcome, et al., lumbar lordosis can increase from an angle of 32 degrees at 0% fetal mass (i.e. non-pregnant women or very early in pregnancy) to 50 degrees at 100% fetal mass (very late in pregnancy). Postpartum, the angle of the lordosis declines and can reach the angle prior to pregnancy.