Surgical Outcomes in Pediatric Patients, Who Underwent Tetralogy of Fallot Correction, Relative to Different Techniques Used to Relieve Right Ventricular Outflow Obstruction

摘要

Tetralogy of Fallot (TOF) is the most common Cyanotic Congenital Heart Disease, with an incidence of approximately 0.5/1000 live births (5% to 7% of congenital heart lesions).1 Before the advent of surgical intervention, about 50% of patients with Tetralogy of Fallot died in the first few years of life, and it was unusual for a patient to survive more than 30 years.2 Most patients died in childhood with a rate of survival of 66% at 1 year of age, 40% at 3 years, 11% at 20 years and 3% at 40 years.1,2 Nowadays, with the advent of surgical repair, which includes closure of the Ventricular Septal Defect (VSD) and relief of Right Ventricular Outflow Tract (RVOT), the long-term survival of TOF patients has been greatly improved.