What is Wernicke's encephalopathy and how can it be prevented in alcohol use disorder?

• A. Chronic liver disease.
• B. Vitamin C deficiency.
• C. Seizure disorder.
• D. Acute neurological disorder due to thiamine deficiency; prevention with thiamine supplementation during detox and ongoing care.

Answer: (D)

Wernicke's encephalopathy is an acute neurological condition caused by thiamine (vitamin B1) deficiency. In people with alcohol use disorder, poor intake, malabsorption, liver disease, and increased thiamine requirements combine to deplete brain stores. Thiamine is essential for brain energy production, so deficiency leads to impaired cerebral metabolism and symptoms such as eye movement problems, unsteady gait, and confusion; it can progress rapidly to irreversible damage if not treated. Prevention during detox and ongoing care relies on routine thiamine supplementation, ideally given early in withdrawal and continued during recovery, to maintain adequate levels and reduce risk. It’s also important to administer thiamine before glucose if IV fluids are started, because glucose can worsen deficiency and precipitate WE. The other options don’t fit because chronic liver disease, vitamin C deficiency, and seizure disorders are not Wernicke's encephalopathy, which is specifically driven by thiamine deficiency.