@article {Carod-Artal:August 2006:0333-1024:934,
	author = "Carod-Artal, FJ",
	author = "da Silveira Ribeiro, L",
	author = "Braga, H",
	author = "Kummer, W",
	author = "Mesquita, HM",
	author = "Vargas, AP",
	title = "Prevalence of patent foramen ovale in migraine patients with and without aura compared with stroke patients. A transcranial Doppler study",
	journal = "Cephalalgia",
	volume = "26",
	year = "August 2006",
	abstract = "Carod-Artal FJ, da Silveira Ribeiro L, Braga H, Kummer W, Mesquita HM &#38; Vargas AP. Prevalence of patent foramen ovale in migraine patients with and without aura compared with stroke patients. A transcranial Doppler study. Cephalalgia 2006; 26:934-939. London. ISSN 0333-1024 <P></P>The aim of this study was to investigate the prevalence of patent foramen ovale (PFO) in a consecutive unselected cohort of migraine patients (with and without aura) and compare it with a group of ischaemic young and elderly stroke patients. One hundred and forty-one migraine patients were compared with 330 stroke patients (130 young patients; 200 elderly patients) selected from our hospital stroke data bank. PFO was assessed with transcranial Doppler sonography with i.v. injection of agitated saline. The prevalence of PFO was 51.7&#37; in migraine with aura (MA) patients, 33.7&#37; in migraine without aura (MoA) patients, 33.8&#37; in young stroke patients and 20.5&#37; in elderly stroke patients (<I>P&#8201;</I>&#60;&#8201;0.001). The prevalence of PFO in cryptogenic stroke in young and elderly stroke patients was, respectively, 41.1&#37; and 25&#37; (<I>P&#8201;</I>&#61;&#8201;0.04). The difference between MA and MoA patients was significant (odds ratio &#61;&#160;2.1). The prevalence of PFO in MA patients is higher than in MoA patients and in young cryptogenic stroke patients.",
	pages = "934-939(6)",
	url = "http://www.ingentaconnect.com/content/bsc/cha/2006/00000026/00000008/art00005"
	doi = "doi:10.1111/j.1468-2982.2006.01156.x"
}