Abstract
Since 1967, when the first intracardiac repair was performed in this centre, until 1991, 840 symptomatic subjects with tetralogy of Fallot have undergone corrective surgery. Cardiac catheterization and angiocardiography were carried out in all patients. Cardinal findings on the clinical status of these subjects are outlined. A substantial number of patients (244; 29.0%) were > 15 years of age. Historically, a transannular pericardial gusset has been utilized in 578 (68.8%), and in 423 (93.0%) during the past decade. The incidence of residual interventricular septal defects has been 0.68% and occurrence of complete heart block after surgery 0.4%. Death occurred in 86 patients (10.2%) within 30 days of operation and later in 40 subjects (4.8%). Long-term results have been excellent with good haemodynamic status in > 90% of subjects in the follow-up period. Associated features including absent pulmonary valve, absent left pulmonary artery, and previous palliative shunts did not alter the outcome; however, a raised haematocrit (> 0.65) was associated with an increased mortality rate.
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