Welcome to the fetalcardiology.co.uk website. This is the personal website of John Simpson, Professor of Paediatric and Fetal Cardiology at the Evelina Children's Hospital, London, UK.

The aim of this site is to provide information about prenatal detection of heart defects as well as relevant information about support groups and diagrams of some of the commoner heart conditions.

If you have been referred for a prenatal cardiac scan and would like information from the Children's Heart Federation to prepare for your visit please click here

Congenital heart disease is one of the most frequent groups of malformations, affecting almost 1% of babies.The vast majority of major congenital heart defects may be recognised by detailed ultrasound scanning of the fetal heart prior to birth (fetal echocardiography).