Impact of transcatheter closure of patent foramen ovale in the evolution of migraine and role of residual shunt

ObjectivesTo retrospectively evaluate the impact on daily activities of transcatheter closure of patent foramen ovale (PFO) versus medical therapy in patients with migraine and to analyze the role of the residual shunt after PFO closure.BackgroundWhile non-controlled observational studies reported an improvement of migraine after PFO closure, a randomized trial has shown no benefit of such an intervention. The role of residual shunt after PFO...