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  • Title: To Be or Not to Be Patent: The Relationship Between Migraine and Patent Foramen Ovale.
    Author: Kahya Eren N, Bülbül NG, Yakar Tülüce S, Nazlı C, Beckmann Y.
    Journal: Headache; 2015; 55(7):934-42. PubMed ID: 26129931.
    Abstract:
    OBJECTIVE/BACKGROUND: Migraine is a common neurological disorder with an uncertain pathogenesis. A pathophysiological link has been proposed between the migraine headache and patent foramen ovale (PFO). However, the data about the association of migraine with the presence of PFO are conflicting. The study aims to prospectively investigate the prevalence of PFO in patients with migraine compared with that of control subjects. METHODS: A total of 203 migraineous patients and 212 control subjects with similar demographic characteristics to that of case subjects regarding age and gender were included in the study. Transthoracic echocardiography with agitated saline injection was used to evaluate the presence of PFO. PFO was judged to be present if any microbubble was seen in the left cardiac chambers within the first 5 cardiac cycles from the maximum right atrial opacification at rest or after provocative maneuvers. RESULTS: Mean age of the patients was 37.2 ± 9.8 years and 93% were female. Migraine with aura was present in 32% (n = 65) of the patients. The prevalence of PFO was similar in patients with migraine and the control subjects (42% vs 44%; odds ratio 0.90, 95% confidence interval 0.61-1.33, P = .61). Likewise, the prevalence of PFO was similar in migraineurs patients with or without aura (41% vs 42%; odds ratio 0.95, 95% confidence interval 0.51-1.76, P = .87). CONCLUSION: This study suggest that PFO is not more common in patients with migraine compared with healthy subjects. Therefore, our findings suggest that the relationship between migraine headache and the presence of PFO is questionable.
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