Wernicke–Korsakoff syndrome (WKS) is the combined presence of Wernicke's encephalopathy (WE) and Korsakoff's syndrome. Due to the close relationship between these two disorders, people with both are usually diagnosed with WKS, as a single syndrome.
It is due to thiamine (vitamin B1) deficiency, which can cause a range of disorders including beriberi, Wernicke's encephalopathy, and Korsakoff's psychosis. These disorders may manifest together or separately. WKS is usually secondary
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