Double inlet left ventricle

Infants born with DILV cannot feed normally (breathlessness) and have difficulty gaining weight. The mixed blood in systemic circulation leads to hypoxia (lack of oxygen to the body and organs), so infants develop cyanosis and breathlessness early.^{[citation needed]}

• In the first few days, if there is no pulmonary valve stenosis, a pulmonary valve banding is necessary to prevent pulmonary hypertension and the ductus must be kept open to allow blood-flow using medication containing prostaglandin. At same time, if necessary, the atrial and ventricular septum communications must be enlarged.
• When possible Glenn procedure is done.^[1]
• Later, surgical options include the Damus–Kaye–Stansel procedure, the Fontan procedure, and the Norwood procedure. The goal of all of these is separating the pulmonary and the systemic circulation.^[2]

Usually, DILV is associated with other cardiac malformations.

Mortality is very high in the first 2 years, 85%, but after it decreases and between 2 and 15 years old the mortality is only around 9%. Diagnosis must be made within few days or even hours to prevent death.^{[citation needed]}