Hi, there. Patau syndrome indeed exists. Unlike Down syndrome where you have trisomy of 21st pair of chromosome, in Patau you have trisomy of the 13th pair. The prognosis and life expectancy for Patau are worse than for Down. These kids’ life expectancy is the age of 10. At least this...
Life expectancy can be very short—within minutes or hours of birth (e.g. Edwards’ syndrome (trisomy 18)) – through to the likelihood of death occurring sometime during the childhood years or adulthood (e.g. Duchenne muscular dystrophy; severe cerebral palsy) [18,19,20]. Given the ...
Ferlazzo, E., Adjien, C. K., Guerrini, R., Calarese, T., Crespel, A., Elia, M., Striano, P., Gelisse, P., Bramanti, P., di Bella, P., & Genton, P. (2009). Lennox-Gastaut syndrome with late-onset and prominent reflex seizures in trisomy 21 patients.Epilepsia, 50(6), ...
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chromosome21. The affected individual may inherit an extra part ofchromosome 21or an entire extra copy of chromosome 21, a condition known astrisomy 21. British physicianJohn Langdon Down first described the physical features of Down syndrome in 1866, and thus the disorder was later named for ...