Evolução clínica da enxaqueca após oclusão percutânea de forame oval patente

Abstract

Background: Migraine is present in 18% of women and 6% of men. 50% of the patients that suffer migraine with aura (MA+) and 30% that suffer migraine without aura (MA-) have Patent Oval Foramen (POF), a larger incidence compared to the general population. This study aimed to evaluate clinical evolution of patients MA+ and MA- that underwent POF closure. Method: The inclusion criterion was patients with chronic migraine without pharmacological therapy response that underwent POF closure between August 2006 and May 2007. Migraine severity was classified by its intensity, frequency, duration and presence of aura, and presence of associated diseases. Further investigation was done by cranial magnetic resonance (CMR), transesophageal echocardiography (TEE) and transcranial doppler (TCD), the last two done with microbubble-enhanced contrast and Valsalva maneuver. After percutaneous treatment, patients were followed-up with the same criteria as before closure. Results: Of the seven patients who underwent POF closure, six were female. Ages ranged between 18 and 65 years of age. Five patients were MA+ and two were MA-. The migraine severity was classified as severe in four cases and moderated in three. All, except one patient, had CMR ischaemic abnormalities. Four patients also had depression and one had Behçet disease. All of them had positive TEE and TCD investigation, that turned out to be negative at the follow-up, three months later. Just one patient did not improve migraine crisis after POF closure. Conclusions: In spite of the low sample number, POF closure seems to be a good adjunct treatment of migraine.