Down syndrome (trisomy 21)
Syndroma Down (trisomia 21) · Downův syndrom (trizomie 21)
What it is
An extra chromosome 21; the commonest chromosomal condition, ~1 in 700 births.
Symptoms & signs
- Characteristic facial features
- hypotonia
- learning disability
- congenital heart defects
- hearing and thyroid problems
- early Alzheimer's risk
🚩 Get help if…
- call 112 / 911 now Baby blue, breathing fast or sweating while feeding
- call 112 / 911 now Green vomiting or a swollen belly in a newborn
- see a doctor soon Neck pain, clumsy walking or loss of bladder control
- see a doctor soon Loss of skills, memory or daily abilities in an adult
Where it strikes
Medical treatment
- Cardiac surgery where needed
- thyroid and hearing screening
- early intervention therapies
- educational support
- specialist health checks
Natural & lifestyle
- Early physiotherapy, speech and occupational therapy
- education with individual support
- exercise and weight management
- screening schedule adherence
Emerging & experimental
- Anti-amyloid prevention trials
- targeted cognitive therapies
- chromosome silencing research
Alternative, off-label & anecdotal
Approaches used outside the guidelines, with what their supporters report and what testing has found so far.
- Green tea extract (EGCG) with cognitive training — a trial improved some memory tests early / small studies
- Megavitamin 'targeted nutrition' regimens — trials found no benefit not confirmed in trials
- Piracetam — a trial found no benefit not confirmed in trials
ICD codes
- ICD-10 Q90.9
- ICD-11 LD40.0 Complete trisomy 21