Hypoplastic Left Heart Syndrome: Feasibility Study for Patients Undergoing Completion Fontan at or Prior to Two Years of Age

In HLHS patients, extracardiac conduit CF can be performed with good intermediate results at or prior to 2 years of age. Earlier unloading of a univentricular heart by means of CF in patients with collateral accessory flow between systemic and pulmonary circulation might be advantageous for future ventricular function preservation. In addition, relief from early cyanosis might alleviate deleterious effects from a prolonged cyanotic state. Fenestration is less often required without effect in pleural drainage duration. Age at CF had no effect in preoperative pulmonary artery growth and conduit size selection.