A case report of paroxysmal complete atrioventricular block in a patient with dextrocardia and repaired tetralogy of Fallot.

There is little evidence for paroxysmal complete atrioventricular block in patients with repaired TOF. This case suggests that paroxysmal complete atrioventricular block can occur late after surgical repair of TOF, and research needs to elucidate whether it is the cause of sudden cardiac death in some patients with TOF.