It is named after the physician Langdon Down, who first observed this condition. Most cases are sporadic – chance – events. [36] While people with Down syndrome are generally happy,[37] symptoms of depression and anxiety may develop in early adulthood. Full Trisomy 13 is a genetic disorder caused by nondisjunction of chromosomes during a stage called Meiosis. [90] Increased fetal nuchal translucency (NT) indicates an increased possibility of Down syndrome picking up 75–80% of cases and being falsely positive in 6%. This book describes different medical problems that children with Down syndrome can encounter. Twelve chapters written by medical experts present information about the disease and give general guidelines for pediatric care. Lastly, occupational therapy can help with skills needed for later independence. With regular medical care and a solid support system, children with Down syndrome can lead long, full and happy lives. [1] This increase has been from 12 years in 1912,[114] to 25 years in the 1980s,[1] to 50 to 60 years in the developed world in the 2000s. [24] Of those with heart disease, about 80% have an atrioventricular septal defect or ventricular septal defect with the former being more common. Again, preimplantation genetic testing can be used – and has been used – in such scenarios to avoid transmission of the condition. Don't study it, Osmose it. [84] In the United States, the termination rate after diagnosis is around 75%,[84] but varies from 61% to 93% depending on the population surveyed. In recent history, advances in medicine and science have enabled researchers to investigate the characteristics of people with Down syndrome. [54] Type 1 diabetes mellitus is also more common. October is Down Syndrome Awareness Month! [8], Although the overall risk of cancer in Down syndrome is not changed,[45] the risk of testicular cancer and certain blood cancers, including acute lymphoblastic leukemia (ALL) and acute megakaryoblastic leukemia (AMKL) is increased while the risk of other non-blood cancers is decreased. [9] People with Down syndrome experience a wide range of emotions. Down syndrome is a genetic condition that happens when a child is born with an extra chromosome. Down Syndrome (Trisomy 21) =. The former name illustrates the exact type of chromosomal defect that occurs in these patients. Other examples of trisomies occur at position 13 and 18. People with Down syndrome should always be referred to as people first. [8], Children and adults with Down syndrome are at increased risk of epileptic seizures, which occur in 5–10% of children and up to 50% of adults. Down syndrome is genetic disorder that causes lifelong mental retardation, developmental delays and other problems. [137] While the term mongoloid (also mongolism, Mongolian imbecility or idiocy) continued to be used until the early 1980s, it is now considered unacceptable and is no longer in common use. Normally, a person has 23 pairs of chromosomes. [168][169], Genetic disorder, also known as "trisomy 21", Augmentative and alternative communication, Individuals with Disabilities Education Act, Royal Society for Handicapped Children and Adults, "Clinical practice. [125][126], In the 20th century, many individuals with Down syndrome were institutionalized, few of the associated medical problems were treated, and most people died in infancy or early adulthood.
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