Wernicke-Korsakoff syndrome

Wernicke-Korsakoff syndrome is a serious brain disorder caused by a lack of vitamin B1 (thiamine), which is essential for brain function. It mainly affects the nervous system, leading to problems with memory, coordination, and eye movements. The syndrome often occurs in people with chronic alcohol use disorder or severe malnutrition. Early symptoms include confusion, difficulty walking, and abnormal eye movements, which can progress to severe memory loss and difficulty forming new memories. This condition can cause permanent brain damage if not treated promptly. The brain areas most affected are those involved in memory and coordination. Understanding this syndrome helps explain how vitamin deficiencies can severely impact brain health.

Wernicke-Korsakoff syndrome is a neuropsychiatric disorder resulting from thiamine (vitamin B1) deficiency, leading to acute Wernicke encephalopathy and chronic Korsakoff psychosis. The syndrome primarily affects the mammillary bodies, thalamus, and periaqueductal gray matter, causing neuronal loss and hemorrhagic lesions. It is most commonly seen in patients with chronic alcoholism, malnutrition, or malabsorption states. Wernicke encephalopathy presents with the classic triad of ophthalmoplegia, ataxia, and confusion, while Korsakoff syndrome is characterized by anterograde and retrograde amnesia with confabulation. The condition is a medical emergency due to the risk of irreversible brain damage and death if untreated. Early recognition and treatment with thiamine supplementation are critical to prevent progression.