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- W3204351256 abstract "Aim: By reviewing the existing clinical studies about visual snow (VS) as a symptom or as part of visual snow syndrome (VSS), we aim at improving our understanding of VSS being a network disorder. Background: Patients with VSS suffer from a continuous visual disturbance resembling the view of a badly tuned analog television (i.e., VS) and other visual, as well as non-visual symptoms. These symptoms can persist over years and often strongly impact the quality of life. The exact prevalence is still unknown, but up to 2.2% of the population could be affected. Presently, there is no established treatment, and the underlying pathophysiology is unknown. In recent years, there have been several approaches to identify the brain areas involved and their interplay to explain the complex presentation. Methods: We collected the clinical and paraclinical evidence from the currently published original studies on VS and its syndrome by searching PubMed and Google Scholar for the term visual snow. We included original studies in English or German and excluded all reviews, case reports that did not add new information to the topic of this review, and articles that were not retrievable in PubMed or Google Scholar. We grouped the studies according to the methods that were used. Results: Fifty-three studies were found for this review. In VSS, the clinical spectrum includes additional visual disturbances such as excessive floaters, palinopsia, nyctalopia, photophobia, and entoptic phenomena. There is also an association with other perceptual and affective disorders as well as cognitive symptoms. The studies that have been included in this review demonstrate structural, functional, and metabolic alterations in the primary and/or secondary visual areas of the brain. Beyond that, results indicate a disruption in the pre-cortical visual pathways and large-scale networks including the default mode network and the salience network. Discussion: The combination of the clinical picture and widespread functional and structural alterations in visual and extra-visual areas indicates that the VSS is a network disorder. The involvement of pre-cortical visual structures and attentional networks might result in an impairment of filtering and prioritizing stimuli as top-down process with subsequent excessive activation of the visual cortices when exposed to irrelevant external and internal stimuli. Limitations of the existing literature are that not all authors used the ICHD-3 definition of the VSS. Some were referring to the symptom VS, and in many cases, the control groups were not matched for migraine or migraine aura." @default.
- W3204351256 created "2021-10-11" @default.
- W3204351256 creator A5003015735 @default.
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- W3204351256 date "2021-10-04" @default.
- W3204351256 modified "2023-10-10" @default.
- W3204351256 title "Visual Snow Syndrome as a Network Disorder: A Systematic Review" @default.
- W3204351256 cites W1769978027 @default.
- W3204351256 cites W1988057772 @default.
- W3204351256 cites W1989983577 @default.
- W3204351256 cites W2004578774 @default.
- W3204351256 cites W2011802538 @default.
- W3204351256 cites W2030761935 @default.
- W3204351256 cites W2039048442 @default.
- W3204351256 cites W2039100550 @default.
- W3204351256 cites W2041370647 @default.
- W3204351256 cites W2054808074 @default.
- W3204351256 cites W2057110668 @default.
- W3204351256 cites W2057208277 @default.
- W3204351256 cites W2061085766 @default.
- W3204351256 cites W2072799373 @default.
- W3204351256 cites W2079049378 @default.
- W3204351256 cites W2112767495 @default.
- W3204351256 cites W2114629758 @default.
- W3204351256 cites W2122894673 @default.
- W3204351256 cites W2123941455 @default.
- W3204351256 cites W2126621346 @default.
- W3204351256 cites W2126797559 @default.
- W3204351256 cites W2143023265 @default.
- W3204351256 cites W2156895313 @default.
- W3204351256 cites W2170102890 @default.
- W3204351256 cites W2237439087 @default.
- W3204351256 cites W2376514477 @default.
- W3204351256 cites W2417372428 @default.
- W3204351256 cites W2501947550 @default.
- W3204351256 cites W2568027254 @default.
- W3204351256 cites W2586533881 @default.
- W3204351256 cites W2592608653 @default.
- W3204351256 cites W2730275777 @default.
- W3204351256 cites W2768514671 @default.
- W3204351256 cites W2801085490 @default.
- W3204351256 cites W2808848822 @default.
- W3204351256 cites W2809039013 @default.
- W3204351256 cites W2883499141 @default.
- W3204351256 cites W2909202956 @default.
- W3204351256 cites W2911408453 @default.
- W3204351256 cites W2922093521 @default.
- W3204351256 cites W2940018978 @default.
- W3204351256 cites W2947550920 @default.
- W3204351256 cites W2949831435 @default.
- W3204351256 cites W2950873484 @default.
- W3204351256 cites W2955217343 @default.
- W3204351256 cites W2970907817 @default.
- W3204351256 cites W2977340372 @default.
- W3204351256 cites W2991202219 @default.
- W3204351256 cites W2998602893 @default.
- W3204351256 cites W2999447544 @default.
- W3204351256 cites W3004274906 @default.
- W3204351256 cites W3010805773 @default.
- W3204351256 cites W3013771391 @default.
- W3204351256 cites W3026117889 @default.
- W3204351256 cites W3030308568 @default.
- W3204351256 cites W3032569012 @default.
- W3204351256 cites W3035516887 @default.
- W3204351256 cites W3043779973 @default.
- W3204351256 cites W3046989084 @default.
- W3204351256 cites W3049159874 @default.
- W3204351256 cites W3085205982 @default.
- W3204351256 cites W3091269166 @default.
- W3204351256 cites W3104223273 @default.
- W3204351256 cites W3118482740 @default.
- W3204351256 cites W3124241268 @default.
- W3204351256 cites W3131947593 @default.
- W3204351256 cites W3153764414 @default.
- W3204351256 cites W3157137887 @default.
- W3204351256 cites W3158908193 @default.
- W3204351256 cites W3159271891 @default.
- W3204351256 cites W3160430229 @default.
- W3204351256 cites W3160485194 @default.
- W3204351256 cites W3162876509 @default.
- W3204351256 cites W3163541011 @default.
- W3204351256 cites W3190463773 @default.
- W3204351256 cites W4205328718 @default.
- W3204351256 cites W4235816700 @default.
- W3204351256 cites W4241980133 @default.
- W3204351256 cites W4256703864 @default.
- W3204351256 cites W3041646027 @default.
- W3204351256 doi "https://doi.org/10.3389/fneur.2021.724072" @default.
- W3204351256 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/8521005" @default.
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- W3204351256 hasPublicationYear "2021" @default.
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