A case report of a young patient with both Brugada and long QT3 syndrome: between the hammer and the anvil.

There are few reports describing the phenotypic overlap between LQT3 and BrS. Despite the confirmed genetic link between both syndromes, their management strategy is controversial. In particularly, the treatment with sodium channel blockers for LQT3 syndrome may increase the risk for arrhythmias in patients with coexisting BrS. The present case demonstrates the link between LQT3 and BrS and the difficult dilemma in the management of these patients.