Fetal Cardiology Fetal Cardiology Enquiries Tel: 0117 342 5394 Website: www.uhbristol.nhs.uk/fetalcardiology	NHS Foundation Trust University Hospitals Bristol NHS Fetal Cardiology Department St Michael’s Hospital (Level E) Southwell Street Bristol BS2 8EG Main Switchboard : 0117 923 0000

Maternal / Familial Indications	Fetal Indications
Maternal congenital heart disease	Suspicion of fetal cardiac abnormality
Maternal metabolic disorders PKU Diabetes Mellitus Type I Type II/Gestational – only if poorly controlled – HbA1c > 42mmol/L (> 6%)	Extra cardiac malformation
Maternal exposure to: cardiac teratogens anticonvulsants Lithium Retinoic acid ACE inhibitors NOT WARFARIN	Chromosomal aberration + genetic syndromes
Maternal Collagen disease –Anti Ro/SSA or Anti La/SSB	Nuchal translucency >99th centile for gestational age (3.5mm)
Maternal viral infection: Rubella CMV Coxsackie Parvovirus Toxoplasma	Monochorionic twins
Maternal NSAID after 25 weeks	Fetal arrhythmias
Paternal CHD	Pericardial effusions > 3mm
Previous child with CHD or congenital heart block	Pleural effusions
First degree relative with CHD	Polyhydramnios
Familial chromosomal or genetic conditions related to CHD	Fetal hydrops
In vitro fertilisation	Other states known to cause fetal cardiac failure: Absence of Ductus Venosus, acardiac twin, Twin to twin transfusion, tumours with a large vascular supply, arteriovenous fistulas, fetal anaemia