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Syndrome reference sheet
Generated 13 Oct 2026
Cardiology · Cardiology / Genetic cardiology Smith–Magenis syndrome
Also known as: 17p11.2 deletion syndrome
Intellectual disability with sleep disturbance and congenital heart defects.
- Medical specialty
- Cardiology
- Subspecialty
- Cardiology / Genetic cardiology
- Sex & age distribution
- Male: affected; Female: affected equally; Children: yes
- Gene(s) involved
- RAI1
Etiology & mechanism
RAI1 haploinsufficiency.
Gene(s) involved (1)
RAI1
Symptoms & signs (7)
behavioral problemshearing lossheart defectshoarse voiceself-injuryshort staturesleep disturbance