Core principles

Wiggers diagram showing aortic, atrial, and ventricular pressures; ventricular volume; electrocardiogram; and phonocardiogram across cardiac systole and diastole.

Cardiac Physiology in CHDs

Color-coded cardiac axis diagram showing normal QRS axis, left axis deviation, right axis deviation, and extreme axis deviation, with ECG leads and degree markings.

ECG interpretation

Foetal vs Adult circulation

Popular

Gloved hands demonstrate first aid positioning for a choking infant mannequin.
Emergency Medicine

Choking

by Dr Vicki Currie and Dr Helen Stewart

Medical diagram of a heart labeled “Tetralogy of Fallot,” showing an overriding aorta, pulmonary stenosis, ventricular septal defect, and right ventricular hypertrophy.
Congenital Heart Defects

Tetralogy of Fallot

by Dr Ali Hafiz and Dr Evagelia Papathanasiou

Diagram of tricuspid atresia showing a closed tricuspid valve, opening between the atria, underdeveloped right ventricle, and normally related aorta and pulmonary artery.
Congenital Heart Defects

Tricuspid atresia

by Fran Thompson and Dr Chris Oakley (Paediatric Cardiologist)