A mum who gave birth to identical twin boys with two different heart conditions says naming them after children’s book characters gave them the “resilience” to survive. Storm Sanson was shocked when her sons were each diagnosed with a form of congenital heart disease at 20 weeks pregnant. Artemis, named after the Artemis Fowl book character, was diagnosed with ventricular septal defect (VSD) which meant there was a large hole in his heart. The parents were told Perseus, named after the Percy Jackson book character, had pulmonary stenosis. This meant the pulmonary valve in his heart was stiff, …