Prognosis
Historically, the survival for untreated TOF was quite poor. In a report from the 1930s of 1000 patients with congenital heart disease, the average life expectancy for TOF was 12 years.[42] Surgical outcomes are excellent with survival rates of 100% at 1 month, 93% at 1 year, and 93% at 5 years after complete repair. Freedom from reoperation rates were 100% at 1 month, 89% at 1 year, and 58% at 5 years.[29]
Once the patient has undergone complete surgical repair, the prognosis and any problems that occur may be related to the patient's individual anatomy and type of surgical repair, as well as any associated conditions. One study of survivors of the first year after surgical repair showed actuarial survival rates of 97% at 10 years, 94% at 20 years, 89% at 30 years, and 85% at 36 years.[43]
Common long-term complications are related to arrhythmias, progressive pulmonary outflow obstruction, and progressive pulmonary regurgitation resulting in right ventricular failure.
Reasons for reoperation are based on progressive pulmonic obstruction and pulmonary regurgitation.
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