“…In infants with TOF-PA, the pulmonary valve was opened using radiofrequency energy and balloon dilated using techniques previously published 12. A 0.014-inch Wizdom (Cordis Corporation, Miami, FL, USA) or the stiffer ASAHI Grand Slam (Abbott Laboratories, Redwood City, CA, USA) wire was used to cross the pulmonary valve and its tip was placed in either a distal pulmonary artery branch or in the descending aorta through the arterial duct.…”