Finally, they found that reconstructing the pulmonary annulus in TOF with only a tiny transannular incision and a stiff Dacron patch to inhibit pulmonary annulus extension throughout the normal growing phase produces the same long-term benefits as preserving the full pulmonary annulus integrity. Complications
Short-term
Residual ventricular septal defects and persistent right ventricular outflow blockage are common problems in the immediate postoperative period. Arrhythmias such as ventricular tachycardia, atrial fibrillation/flutter, and intra-atrial re-entrant tachycardia can occur after tetralogy repair. With broad complex tachycardia, the ECG will likely show a right bundle branch block or left bundle branch block patterns. Patients who have had their hearts repaired may experience sudden cardiac death. Risk factors for abnormal heart rhythms include:

Age (at repair)
Male gender
Transient complete heart block beyond post operative day three
QRS duration greater than 180 milliseconds

Long-term
Adult patients with congenital cardiac disease are on the rise at a rate of about 5% per year, outpacing the pediatric population. Right ventricular volume overload form pulmonary insufficiency, right ventricular aneurysm from outflow patch or ventriculotomy, distal pulmonary artery obstruction, ventricular hypertrophy, chamber enlargement, biventricular dysfunction, and aortic root dilation and insufficient are all long-term complications seen in these patients. Arrhythmia, heart failure, and complications from reoperations are the three primary causes of death in individuals with corrected tetralogy of Fallot.
This patient, who was 16 months old, was initially thought to have asthma, though an autopsy postmortem revealed a cardiac malformation with no ductus arteriosus or ligamentum arteriosum, indicating that the child may have died from TOF. Another 13-year-old patient was reported by Scottish physician William Hunter in 1782. Hunter described the patient, along with three others, as suffering from cyanosis after a posthumous examination in 1774.Other cases, such as those presented by Pulteney (1785), Abernethy (1793), Bell (1797), Dorsey (1812), and Farre (1814) also contributed to modern understandings of TOF. The first reported case of TOF was in America at the University of Pennsylvania in 1816, with more cases being reported by Peacock (1858 and 1869), Widman (1881), and finally Fallot (1888), after whom the condition is named. Fallot was the first to elegantly describe the four key features that differentiate it from other cyanotic cardiac conditions, and was prominent in the disqualification of a patent foramen ovale as a fifth feature. Fallot initially referred to it as "La maladie bleue", which is French for "the blue disease" or "cyanose cardiaque", translating to "cardiac cyanosis".The first surgical repair was carried out in 1944 at Johns Hopkins. The procedure was conducted by surgeon Alfred Blalock and cardiologist Helen B. Taussig, with Vivien Thomas also providing substantial contributions and listed as an assistant. This first surgery was depicted in the film Something the Lord Made. It was actually Helen Taussig who convinced Alfred Blalock that the shunt was going to work.