• Justin G L M Luermans, Martijn C Post, Frederik Temmerman, Vincent Thijs, Wouter J Schonewille, H W Thijs Plokker, Jurriën M Ten Berg, Maarten J Suttorp, and Werner I H L Budts.
• Department of Cardiology, St. Antonius Hospital, Nieuwegein, The Netherlands.
• Catheter Cardiovasc Interv. 2009 Dec 1; 74 (7): 1078-84.

BackgroundA right-to-left shunt, as seen in patients with a patent foramen ovale, seems to be associated with migraine. An atrial septal defect (ASD), however, is characterized by a predominant left-to-right shunt (LRS). We prospectively evaluated the effect of percutaneous ASD closure on migraineMethodsAll 70 consecutive patients (>16 years) who underwent a percutaneous ASD closure between November 2003 and December 2005 in one of the two participating centers were included in the study. On the basis of standardized headache questionnaire, two independent neurologists diagnosed migraine with or without aura (MA+ and MA-, respectively) according to the International Headache Society criteria, before, 6 and 12 months after closure.ResultsSixty-eight patients (97%; mean age 47.3 + or - 16.4 years; 22% men) agreed to participate in the study and completed the questionnaire. Before ASD closure, the overall prevalence of migraine was 34%, MA+ 22% and MA- 12%. At 6 months follow-up, the headache questionnaire was completed by 63 patients (93%) and the prevalence of overall migraine decreased to 19%, MA+ to 8% and MA- to 11% (Mc Nemar test, P = 0.08, P = 0.07, and P = 1.0, respectively). At 12 months, the prevalence of migraine decreased further to 12%, MA+ to 5% and MA- to 7% (McNemar test, P = 0.003, P = 0.04, and P = 0.29 versus at inclusion, respectively) based on a completed headache questionnaire of 57 patients (84%).ConclusionWe found a high prevalence of migraine in patients with an ASD, and observed prospectively a reduction in the occurrence of migraine, especially migraine with aura, 1 year after percutaneous closure.

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