A 56-year-old male lawyer has persistent atrial
fibrillation. He has had direct current cardioversion twice and has been on
amiodarone and warfarin but has gone into atrial fibrillation again.
A decision has been made to refer him for radiofrequency
ablation treatment. This treatment involves radiofrequency ablation of the
ostium of the:
Superior vena cava
Inferior vena cava