ABSTRACT
Objective Evaluating a new continuity between the right ventricle and the pulmonary artery for repair of persistent truncus arteriosus(PTA).Methods Between January 2000 and December 2012,we performed operation of 53 children with without a conduit:sleeve and direct right ventricle-pulmonary artery anastomosis [age,40 day to 2.3 years; median age,(0.9 ± 0.5) years] in 86 cases of PTA.The other 33 cases were performed with valved conduit.we used different methods to form the posterior floor of the new pulmonary arterial trunk.The edge of the floor was attached directly to the superior margin of an oblique incision made in the left-anterior wall of the right ventricle.A Gortex monocusp was attached to the lower half margin of the right ventricular incision in 26 cases.Results There were high pulmonary hypertension (PH) in 6 cases with the treatment of anti-PH.There were 2 death postoperatively because of pulmonary hypertension and right heart disfunction.The other patients were discharged from hospital.Cardiac ultrasound at hospital discharge showed pulmonary regurgitation that was trivial in three cases,mild in twentyseven cases,and moderate in twentyone case.During follow-up(36-60 months,median 54 months),there were no death.Conclusion This simple modification for surgical correction of persistent truncus arteriosus may be an effective alternative that overcomes conduit-related problems from the mid-followup period.