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CONCLUSION the American Heart Association/American Stroke Association Stroke
There seems to be a relationship between SHL and Council: Cosponsored by the Atherosclerotic Peripheral Vascular
stroke, especially in patients with cardiovascular risk Disease Interdisciplinary Working Group; Nutrition, Physical Activity,
factors, although further research with larger samples and Metabolism Council; and the Quality of Care and Outcomes
would be necessary to confirm the data. Hence we Research Interdisciplinary Working Group: the American Academy
recommend a longer follow-up in such a patients since of Neurology affirms the value of this guideline. Stroke. 2006
stroke may develop several years after the onset of the Jun;37(6):1583-633. doi: 10.1161/01.STR.0000223048.70103.F1
hearing loss episode. 13.Di Tullio M, Sacco RL, Gopal A, Mohr JP, Homma S. Patent foramen
ovale as a risk factor for cryptogenic stroke. Ann Intern Med. 1992 Sep
Conflict of Interest 15;117(6):461-5. doi: 10.7326/0003-4819-117-6-461.
Authors declare that they have no conflict of interest. 14.Iguchi Y, Kimura K, Kobayashi K, Tachi T.et al. Sudden deafness
and right-to-left shunts. Cerebrovasc Dis. 2008;26(4):409-12. doi:
Ethical approval 10.1159/000151682.
All procedures performed in studies involving human 15.Homma S, Di Tullio MR. Patent foramen ovale and stroke. J Cardiol.
participants were in accordance with the ethical 2010 Sep;56(2):134-41.doi: 10.1016/j.jjcc.2010.05.008.
standards of the institutional research committee 16.Mas JL, Arquizan C, Lamy C, Zuber M. et al. Recurrent
and with the 1964 Helsinki declaration and its later cerebrovascular events associated with patent foramen ovale, atrial
amendments. septal aneurysm, or both. N Engl J Med. 2001 Dec 13;345(24):1740-6.
doi: 10.1056/NEJMoa011503.
This article does not contain any studies with animals 17.Ciorba A, Corazzi V, Cerritelli L, Bianchini C. et al. Patent
performed by any of the authors. Foramen Ovale as Possible Cause of Sudden Sensorineural Hearing
Loss: A Case Report. Med Princ Pract. 2017;26(5):491-494. doi:
Informed consent 10.1159/000484247.
Informed consent was obtained from all individual 18.Ori M, Faralli M, Ricci G. Cochleovestibular Transient Ischemic
participants included in the study. Attack as a Manifestation of Patent Foramen Ovale. J Int Adv Otol.
2017 Dec;13(3):422-425. doi: 10.5152/iao.2017.4519.
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60 REVISTA PORTUGUESA DE OTORRINOLARINGOLOGIA E CIRURGIA DE CABEÇA E PESCOÇO

