Which one of the following statements regarding the Fontan operation is correct?
A. It is a palliative procedure in patients with congenital cyanotic heart disease when a biventricular repair is not possible; the result is univentricular physiology with diversion of systemic venous return to the pulmonary arteriesThe Fontan operation is a palliative procedure in patients with complex cyanotic heart disease when a biventricular reapir is not possible. These patients have univentricular physiology with mixing of pulmonary and systemic blood in a dominant ventricle (a rudimentary ventricle is often present connected via a ‘VSD’). Life expectancy is not normal. The procedure consists of redirection of systemic venous blood to the pulmonary arteries (although there are a number of technical variations). The current modification is the total cavopulmonary connection (TCPC)
Glenn and Fontan operations. TCPC is the modern modification.
Surgery for TGA to redirect blood via baffles (atrial switch) is named either the Mustard procedure (prosthetic baffles) or the Senning procedure (intrinsic atrial tissue baffles). These approaches have been superseded by the more successful arterial switch procedure. Systemic arterial-to-pulmonary shunts (e.g. Balock–Taussig shunt) can be used in a staged approach to palliate a patient until a Fontan procedure is completed.