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1.
Schankin  CJ, Maniyar  FH, Digre  KB, Goadsby  PJ.  ‘Visual snow’: a disorder distinct from persistent migraine aura.  Brain. 2014;137(pt 5):1419-1428. doi:10.1093/brain/awu050PubMedGoogle ScholarCrossref
2.
Headache Classification Committee of the International Headache Society (IHS). The International Classification of Headache Disorders, 3rd edition. Cephalalgia. 2018;38(1):1-211.
3.
Schankin  CJ, Maniyar  FH, Sprenger  T, Chou  DE, Eller  M, Goadsby  PJ.  The relation between migraine, typical migraine aura and “visual snow”.  Headache. 2014;54(6):957-966. doi:10.1111/head.12378PubMedGoogle ScholarCrossref
4.
Goadsby  PJ, Holland  PR, Martins-Oliveira  M, Hoffmann  J, Schankin  C, Akerman  S.  Pathophysiology of migraine: a disorder of sensory processing.  Physiol Rev. 2017;97(2):553-622. doi:10.1152/physrev.00034.2015PubMedGoogle ScholarCrossref
5.
Boulloche  N, Denuelle  M, Payoux  P, Fabre  N, Trotter  Y, Géraud  G.  Photophobia in migraine: an interictal PET study of cortical hyperexcitability and its modulation by pain.  J Neurol Neurosurg Psychiatry. 2010;81(9):978-984. doi:10.1136/jnnp.2009.190223PubMedGoogle ScholarCrossref
6.
Hadjikhani  N, Sanchez Del Rio  M, Wu  O,  et al.  Mechanisms of migraine aura revealed by functional MRI in human visual cortex.  Proc Natl Acad Sci U S A. 2001;98(8):4687-4692. doi:10.1073/pnas.071582498PubMedGoogle ScholarCrossref
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    Research Letter
    November 25, 2019

    Episodic Visual Snow Associated With Migraine Attacks

    Author Affiliations
    • 1Department of Neurology, Inselspital, University Hospital Bern, University of Bern, Bern, Switzerland
    JAMA Neurol. 2020;77(3):392-393. doi:10.1001/jamaneurol.2019.4050

    Visual snow syndrome (VSS) is a debilitating disorder characterized by continuous visual snow (VS), ie, tiny flickering dots in the entire visual field resembling the view of a badly tuned analog television (Figure), plus additional visual symptoms, such as photophobia and palinopsia. There is a high comorbidity with migraine and migraine aura.1 To our knowledge, this is the first report of patients with an episodic form of VS (eVS), strictly co-occurring with migraine attacks.

    Between January 2016 and December 2017, we saw 3 patients with eVS and 1934 patients with migraine at our tertiary outpatient headache center. Diagnoses were made according to the International Headache Society International Classification of Headache Disorders-32 and our previous work,1 except for the requirement of permanence for VS. The case series was approved by the Cantonal Ethics Committee Bern (Req-2017-00698) with waiver of written informed consent based on general consent given by all patients.

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