One day in early spring of last year, old friend accompanying a middle-aged couple hold full moon baby, hastily arrive please check Advisory. Local hospital diagnosis of two of his old age pregnancy, abdominal delivery baby with Down\'s Syndrom. With a glimmer of hope, a family of three from afar to and ask the provincial capital of doctor can be a panacea, or children with diagnosis or cure miaoshouhuichun again, unfortunate families regain their joy. I took this feeding was good of baby, heart not a sank, nestled in mother arms in of, has is a typical of congenital fool type in children with appearance: head small and round, and Hou pillow Department more flat, face round nasal flat, eye crack narrow fine and to outside Shang warping up (like Opera of a young female character type in Chinese operas female eye), two eye apart obvious had wide, eyelashes sparse short, lips more thick, and tongue large and often mouths outside stretch, and casting constantly, limbs joint soft, and muscle tension low, and pass cross Palm, and ear small and bit lower, entire appearance is a dull phase. Laboratory findings, children with chromosome test on display in our hospital is \"21-three\".
Down\'s Syndrom, also known as 21-three-body syndrome, it is the most common form of human chromosome diseases, mental development are not the best and the most serious manifestation of this disease, IQ is usually between 20~50, with age, IQ not rise but drop, about half of children with congenital heart disease. Average life expectancy of patients is not long, about 50% before the age of 5 died in children with a variety of complications (infectious diseases such as pneumonia), training the day after tomorrow may help children with improved action development. Slightly better intelligence can learn simple manual labor, and even be able to read, even the poor language and difficulties of daily life. Usually children with lively, a good mimic, love music, but maximum impaired abstract thinking ability, so learning to them was difficult.
Typical 21-three-body syndrome most new students, and parents are independent of the karyotype, which is the result of meiosis when the embryo without separation, and eggs of aging greatly. Women\'s older, more aging, more difficult to separate the eggs, with the result that article 46 chromosomes offspring into a 47-23, resulting in a 21-three-body syndrome. With few parts and also genetic factors, it already has a child with his parents, should a chromosome to exclude genetic factors, as a reference for the next pregnancy. The provisions of the measures for the implementation of the maternal and infant health care law, prenatal diagnosis of pregnant women must be over 35 years, aimed at preventing births of children with Down\'s Syndrom. According to statistics, 25,000 to 30,000 a year Down\'s Syndrom in China birth. In the general population, the disease occurrence rate of 1 per thousand, and over 35 years of women of child-bearing such friendly possibilities for 1%~2%,44 pregnant women over the age of up to one-forty fourth.
Pathogenic factors and also use chemical drug abortion in pregnancy, radiation exposure, autoimmune diseases and infections (such as infectious hepatitis). The early prevention.
In recent years, with the medical standards, especially molecular biology, interventional imaging technology quickly into the medical field, diagnosis of fetus in utero is normal has been possible. By clinical observation, b-cells and laboratory physicians are working together, extraction of fetal test samples (such as the villi, amniotic fluid and umbilical cord blood) cell chromosome test analysis, diagnosis of chromosomal diseases, once abnormal fetus, early intervention, out-patient tire, safe motherhood, child protection priority is an important step.
Recommended age pregnant women must be genetic consultations, antenatal diagnosis. Pregnant women under 35 years old, also should be alert to Web baby is normal? Now by extracting the blood of pregnant women monitored AFP, free estriol and velvet film hormones; combined with maternal age, gestational, you can work out the risk of Down\'s Syndrom pregnancy the fetus, if the exception should also be puncturing the amniotic fluid. In fact, puncturing the amniotic fluid extraction of fetal samples technology is very mature, very high success rate, extremely low complication, piece suitable for detection of indications of pregnant women, should be bold enough to receive antenatal diagnosis in order to safeguard their health and a healthy and lively, bright strong and healthy baby.
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