[Stimulation of the centromedian nucleus in refractory epilepsy associated to ring chromosome 20]

Ring chromosome 20 syndrome is a rare genetic disorder, with a late diagnosis.

A 43-year-old woman who had had refractory epilepsy since the age of six years, for which she was treated with deep brain stimulation of the centromedian nucleus, and also a ring chromosome 20.

From the findings of the study it can be concluded that deep brain stimulation of the centromedian nucleus is ineffective in patients with ring chromosome, but note must be taken of the importance of genetic characterisation for the management of refractory epilepsy.