We analysed the biochemical and therapeutic risk factors for CO in DKA by a retrospective review of 256 children hospitalized for DKA between February 2003 and March 2015. 121(5):e1258-66. A comparison of the children with cerebral edema with those in the matched control group also showed that cerebral edema was associated with lower partial pressures of arterial carbon dioxide and higher serum urea nitrogen concentrations. Background: The most feared complication in the clinical course of children with diabetic ketoacidosis (DKA) is the development of cerebral edema.Cerebral edema is rare (<1%) but is the leading cause of death in pediatric DKA. Recurrent diabetic ketoacidosis in patients with known diabetes mellitus remains a relevant problem in pediatrics with an incidence of 1–10% per patient. Diabetic ketoacidosis (DKA) is the leading cause of morbidity and mortality in children with type 1 diabetes, with a case fatality rate ranging from 0.15 to 0.31 percent in the United States and other resource-rich countries [ 1-3 ]. The initial severe acidosis and hyperglycaemia probabl DKA