Timing For Primary Repair Of Tetralogy Of Fallot In Neonates And Infants Less Than Twelve Months Of Age

ObjectiveTo assess the impact of early primary repair on the short and medium term outcome to analyze the Influence of different ranges in infants less than twelve months.MethodsForty three under 12 months of age undergoing correction of isolated TOF were reviewed between January 2008 and March 2010 retrospectively ,the mean age of repair was(5.7±2.8)months of whom 19(44.1%)were less than 6 months old,24(55.9%)were 6-12 months old .Outcome data for mortality,post-operative care management,major morbidity and clinical follow—up were analyzed.Results1. There was no mortality in two groups. There were no differences in post-operative morbidities attributable to age.Two groups did not differ significantly in terms of, inotrope requirement overall hospital stay, major or minor complications, or reoperation. Significant differences were found in intensive care unit stay and days of mechanical ventilation in patients under 6 months old.2. At a mean follow-up of(12.5±3.5)months(range6-24) ,43(100%) patients had pulmonary regurgitation(PR) . No patient for residual right ventricular outflow tract obstruction(RVOTO)and 2(4.6%)patients for residual ventricular septum defect but not required reoperation.All the patients'heart function(NYHA)gradeⅠ.Conclusion1. Different ranges in infants less than twelve months do not appear to affect primary repair of tetralogy of fallot.2. We suggest the best timing for infants less than twelve months is six months old.