My interests include etiology of developmental delay, the genetics of epilepsy as well as neonatal seizures and their impact on longterm development. My current research project looks at how global developmental delay is one of the most common problems evaluated by child neurologists and geneticists. Chromosomal microarray is a newer technology that allows a targeted analysis for microdeletions and microduplications of the entire genome. Currently we are completing a retrospective chart review of all subjects who had a chromosomal microarray at St. Louis Children's Hospital over a two year period. We are looking at the utilization, limitations, diagnostic yield and clinical variables that might be predictive of an abnormal result.