Squared nasal root, nasal voice -indicators of 22 q11.2 deletion in patients with psychiatric illness

Background 22q11.2 Deletion Syndrome DGS (22q11) is a micro deletion syndrome caused by the deletion on chromosome 22. It is a multi system disorder which affects Cardiovascular system, immune system, facial features covered by acronym CATCH22 (Cardiac defects aortic arch anomalies, conotruncal anomalies, ventricular septal defect, patent ductus arteriosis and tetra logy of fallot; Abnormal facies ; Thymic hypoplasia; Hypocalcemia). Few children will not present with all of the above clinical features but only delayed motor mile stones, learning disability and mild behavioral issues which may progress onto psychiatric illness in adulthood. In this study, we aim to study the prevalence of DGS in patients with psychiatric illness.