Need of transannular patch in tetralogy of Fallot surgery carries a higher risk of reoperation but has no impact on late survival: results of Fallot repair in Finland

The 600 Finnish patients who were analyzed, underwent repair of tetralogy of Fallot at the age of <15 years between 1962 and 2007.  The long-term prognosis improved considerably over time. The data indicate an increased risk of death in patients who had undergone a primary palliative procedure. Further, the need of a transannular patch was associated with a higher risk of reoperation, but had no impact on late survival.