AGO2/Leskres (Lessel-Kreienkamp) syndrome is a rare neurodevelopmental disorder characterized by delayed motor development, seizures, problems speaking and understanding, and cognitive impairment.
It is associated with a mutation in the gene AGO2 or Argonaute2. If you are a parent of an affected child, please know that YOU DID NOTHING WRONG! It's that important, we write it in capitals. New mutations happen naturally, and in the good cases this is how we evolve as a human species.