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[Late postoperative results after repair of tetralogy of Fallot].

Two hundred and eighty two survivors after complete correction of tetralogy of Fallot were analyzed in late follow up periods. The method of the reconstruction of right ventricular outflow tract was non-transannular path (NTAP) in 110 patients and transannular patch in 172. In the group of TAP, pulmonary regurgitation occurred in all and the cardio-thoracic ratio was larger than the ratio in the group of NTAP (p less than 0.05). Postoperative ECG at rest showed complete right bundle branch block (CRBBB) in 224 patients and 6 of them showed sudden death in their follow up period. However, there were no sudden deaths in 41 patients without CRBBB. The rate of reoperation after intracardiac repair was 4.25% and the causes were residual pulmonary stenosis and residual ventricular septal defect, and there were no significant differences of the reoperation rate between NTAP-group and TAP-group.