A<unk>  is a cardiac<unk>  which allows, or is designed to cause, blood to flow from the<unk>  circulation to the<unk>  circulation. This occurs when: #there is a passage between two or more of the great vessels; and, #pulmonic pressure is higher than<unk>  pressure and/or the<unk>  has a one-way valvular opening. A<unk>  functions as follows: # right-to-left in the absence of arterioventricular discordance. # left-to-right if the great vessels are transposed.
Pulmonary-to-systemic shunt
Pulmonary shunt
Right-to-left shunt
Cardiac shunt
Atriocaval shunt
Convergence insufficiency
Blalock–Taussig shunt
Pulmonary artery banding