Abstract
CDKL5 deficiency syndrome (CDD) is a rare developmental epileptic encephalopathy (DEE) of genetic origin. This syndrome is characterized by early-onset epileptic seizures that are refractory to treatment and, among the seizures, the most commonly observed are epileptic spasms, tonic-clonic seizures and tonic seizures. Other symptoms include hypotonia, global developmental delay, intellect…