Determination of TOF Characteristics in Iranian Patients

Objective: Tetralogy of fallot (TOF) is one of the most common forms of cyanotic congenital heartdisease (CHD). The aim of this study was determination of demography, associated anomalies,peripheral pulmonary stenosis (PPS), blood grouping, Rh typing, operation results andcomplications in TOF.Material Methods: The records of 270 patients were reviewed. These patients were admittedfrom 1993 to 2003, in Shaheed Rajaei Hospital.Findings: Male patients were 60.37% and females were 39.63%. Incidence of patent foramenovale (PFO), Right Aortic Arch (RAA), coronary artery (CA) anomalies and other anomalies were44.81%, 21.11%, 9.25% and 36.30% respectively. Single ostium coronary artery (SOCA) was themost common CA anomaly. The most common PPS was bifurcation stenosis. TOF was morecommon in O blood group patients. The mean age at the first palliative operation was 5.21 yearsand for TC was 7.19 years. Post surgical mortality rate was about 3% and morbidity rate, 12.18%.Conclusion: Trend toward earlier total correction (TC), and single stage early TC of TOF shouldbe recommended as the preferred management strategy.