Five Ts of cyanotic congenital heart disease (mnemonic)

A mnemonic to remember the most important congenital heart defects associated with cyanosis is:

• 5 Ts

Mnemonic

• T: tetralogy of Fallot (TOF)
• T: transposition of the great arteries (TGA)
• T: truncus arteriosus
• T: total anomalous pulmonary venous return (TAPVR)
• T: tricuspid valve abnormalities and hypoplastic right heart syndrome

Though the mnemonic covers the most important entities, there are numerous other combined and isolated cyanotic cardiac abnormalities.