Table 1: Indications for foetal echocardiography.

Maternal indications	Foetal indications
• Family history of congenital heart disease	• Abnormal obstetrical ultrasound abnormality
• Metabolic disorders (e.g. diabetes, phenylketonuria)	• Extracardiac abnormality
• Exposure to teratogens	• Chromosomal abnormality
• Exposure to prostaglandin synthetase inhibitors (e.g. ibuprofen, salicylic acid, indomethacin)	• Arrhythmia
• Rubella infection	• Hydrops
• Autoimmune disease (e.g. SLE)	• Increased first trimester nuchal translucency
• Familial inherited disorders (e.g. Marfan, Noonan syndrome)	• Multiple gestation, suspicion of twin-to-twin transfusion
• In-vitro fertilisation