Assessment of Memory in Children With Kabuki Syndrom

Kabuki Syndrome (SK - OMIM 147920 and 300867 ORPHA: 2322) is a rare genetic disease with a prevalence of approximately 1/32 000 and responsible for a malformation syndrome with mild to moderate intellectual impairment. SK is due to mutations in the KMT2D and KDM6A genes. As part of a national PHRC (AOM 07-090, clinicaltrial NCT01314534, The investigators were able to perform psychometric tests type WISC4 and MRI type VBM). Disability in SK is characterized by a heterogeneous cognitive profile with strengths and weaknesses when calculating IQ. Brain MRI reveals small hippocampi compared to controls. These 2 data are partly contradictory because the strengths of the patients with SK are a working memory and a verbal comprehension index high compared to the other indices of the tests WISC-IV.

The objective of the research is to better understand the mnesic function of children with SK.

25 children aged 6 to 16 will be recruited. The diagnosis of SK will have been authenticated by the demonstration of a mutation in the KMT2D or KDM6A gene.

The memory assessments will be conducted in one visit for each child, who will perform a memory assessment with a neuropsychologist, using the CMS scale.

Inclusion criteria

• Child from 6 to 16 years old
• Presents an already established diagnosis of Kabuki syndrome.
• Free, informed and written consent signed by the participant's parents, and the investigator (at the latest inclusion day and before any research required by the research).

Exclusion criteria

• Be under 6 years old or over 16 years old
• Do not master the French language
• Not having access to language
• Deafness not paired
• Blindness.