The 67 patients who were operated as a tetralogy of Fallot during the period from 1985 to 1991 at the Department of Thoracic and Cardiovascular Surgery, Hanyang University were reviewed retrospectively. The age ranged from 3 month to 43 years old[mean 10.4 years old]. 39 patients were male and 25 patients were female. The body surface area ranged 0.4m2~1.6m2[mean 0.77m2] and body weight ranged 5.2kg~57kg[mean 20.2kg]. The 22 patients have history of previous shunt operation and average interval between shunt and total repair is 1.8years. The 43 patients were operated as primary total correction. The 53 patients were operated using transannular patch for right ventricular outflow reconstruction. And 12 patients were operated as right ventricular outflow recontruction only. Six patients were died postoperatively among 67 patients and with mortality rate of 8.7%. In patients group less than 0.7 of PRV/LV, there was no expired case but in patient group over than this level 3 patients were died among 14 patients. There were 6 death among the transanular patch group and no death in right ventricular outflow recontruction performed group. Postoperative complications were found in 9 cases including bleeding; 3 cases, residual VSD; 2 cases, wound infection: 2 cases, chylothorax 1 case and Lt. phrenic nerve palsy 1 case.