Methods: A total of 104 patients with TOF (60 m ales, 4 4 females; mean age 4.1 years; range 1 to 24 years) underwent total correction between January 2006 and August 2011. Right ventricular outflow tract reconstruction was performed by transannular patching in 89 (V-Plasty technique in 10), by muscular resection from only right atriotomy in 12, and by Contegra graft in three patients. Patients were followedup by echocardiography to detect the presence of pulmonary insufficiency, transpulmonary gradient, ventricle functions, and residual ventricular septal defect (VSD). The mean follow-up was 26.4 months (range, 6-62).

Results: Early-term mortality was seen in seven patients, while no late-term mortality was observed. A permanent pacemaker was implanted to two patients with complete atrioventricular (AV) block and one patient with Mobitz type-2 AV block. Repeated echocardiography showed no residual VSD. Of 13 patients with mild pulmonary insufficiency, seven with severe pulmonary insufficiency during the follow-up period underwent off-pump injectable pulmonary valve replacement.

Conclusion: Off-pump injectable pulmonary valve replacement should be considered in patients with postoperative pulmonary insufficiency.