Tetralogy of Fallot (cont.)
After successful surgery, children generally don't have any symptoms and lead normal lives with few, if any, restrictions. However, the surgery itself may have some long-term complications. These include the following:
- Right ventricular failure: Right ventricular failure is possible, especially if surgery created severe pulmonary valve insufficiency,
which is regurgitation of blood backwards from the pulmonary artery into the right ventricle.
- Electrical conduction abnormalities: Every patient with tetralogy of Fallot has right bundle branch block secondary to the congenital ventricular septal defect. But sewing the patch into the ventricular septum can create heart block or failure of the upper atria to conduct/communicate with the lower ventricles. A permanent pacemaker is occasionally needed.
- Arrhythmias: Because of surgery on the ventricles, postoperative ventricular tachycardia (VT) is an infrequent risk. This is a life-threatening arrhythmia, so follow-up detection of risk for ventricular tachycardia is important.
- Residual hole in the ventricular septum: This is also possible, with oxygenated blood passing from the left side of the heart to the right (shunting).
Medically Reviewed by a Doctor on 7/29/2014
Francisco Talavera, PharmD, PhD
Must Read Articles Related to Tetralogy of Fallot
The electrocardiogram (ECG or EKG) is a diagnostic tool that measures and records the electrical activity of the heart in exquisite detail.learn more >>
Mitral Valve Prolapse
Mitral valve prolapse (MVP) is also called click-murmur syndrome, floppy mitral valve syndrome, and Barlow syndrome after the doctor who first described MVP. Th...learn more >>
Ventricular Septal Defect
Ventricular septal defect is a hole in the wall between the right and left ventricles of the heart. This abnormality usually develops before birth and is found ...learn more >>
Patient Comments & Reviews
The eMedicineHealth doctors ask about Tetralogy of Fallot: