
In an Instagram post, the TV presenter, 49, said she had recently had 'keyhole heart surgery' at the Royal Brompton Hospital in London. But the former Big Brother host only received her diagnosis last year and had 'been pottering around' since birth 'blissfully unaware' she had the condition. A hole in the heart, known medically as atrial septal defect (ASD), is a hole in the atrial septum - the wall between the two upper chambers of the heart, the atria. It's a type of congenital heart disease, meaning it is a condition people are born with.