Alcohol-related dementia

Disease Description (Causes and Pathophysiology, Main Symptoms)

• Definition: Alcohol-related dementia is a condition in which cognitive function is chronically impaired due to long-term excessive alcohol consumption and the resulting nutritional deficiencies, reduced liver function, and direct alcohol toxicity, interfering with daily life.
• Causes and pathophysiology:
  • Direct neurotoxicity caused by chronic alcohol exposure results in neuronal damage and brain atrophy in areas such as the hippocampus and frontal lobes.
  • When Wernicke–Korsakoff syndrome develops due to long-term thiamine (vitamin B1) deficiency, severe organic memory impairment may remain.
  • Metabolic deterioration of brain function caused by hepatic encephalopathy (when accompanied by liver failure) can cause or worsen cognitive impairment.
  • Repeated trauma (falls, traumatic head injuries) and chronic subacute cerebrovascular problems also contribute.
• Main symptoms:
  • Memory decline (particularly impairment of recent memory), reduced learning ability
  • Impaired executive function (problems with planning, judgment, and impulse control → personality changes, aggression, etc.)
  • History of blackouts (loss of memory for events after drinking)
  • Gait ataxia, tremors, eye movement disorders (Wernicke-related symptoms), reduced consciousness (in hepatic encephalopathy)
  • Reduced ability to perform activities of daily living (difficulty managing finances, maintaining interpersonal relationships and hygiene, etc.)

Treatment Methods

• Immediate measures
  • Abstinence from alcohol (strongly recommended): the most important treatment for preventing progression and restoring some reversibility.
  • If acute Wernicke encephalopathy is suspected, immediately administer high-dose intravenous thiamine (IV administration according to hospital guidelines); thiamine must always be given before administering glucose.
  • If alcohol withdrawal symptoms (anxiety, tremors, seizures, delirium, etc.) occur, use benzodiazepines (e.g., lorazepam, diazepam) according to a withdrawal management protocol (such as CIWA).
• Pharmacological treatment (long-term management)
  • Treatment of alcohol dependence:
    • The choice of pharmacological abstinence medications, such as naltrexone, acamprosate, and disulfiram, should take liver function and comorbidities into consideration.
  • Nutritional supplementation:
    • Supplementation with vitamin B1 (thiamine), folic acid, and other vitamins and nutrients.
  • If hepatic encephalopathy is also present:
    • Treatment with lactulose, rifaximin, and other medications.
• Non-pharmacological treatment and rehabilitation
  • Cognitive rehabilitation (occupational therapy, education on memory-aid strategies), and training in activities of daily living
  • Psychosocial interventions: addiction programs, group and individual counseling, and family therapy
  • Safety management: fall prevention, driving restrictions, and restricting access to medications and alcohol
• Surgery/procedures
  • Neurosurgical treatment is necessary if alcohol-related trauma (e.g., subdural hemorrhage) occurs.
• Precautions (during treatment)
  • If liver disease is also present, the use of some abstinence medications (e.g., naltrexone) may be restricted.
  • Management of acute medication or alcohol withdrawal may require hospitalization and monitoring.
  • Long-term benzodiazepine use may worsen cognitive function and should therefore be used cautiously.

Checklist Before an Outpatient Visit (Items to Bring and Example Questions)

• Information to prepare/bring
  • List of all medications and supplements currently being taken (including doses and administration times)
  • Recent blood test and imaging test results (test reports, if possible)
  • Alcohol consumption history: age when drinking began, average daily and weekly alcohol intake, frequency of binge drinking (bunker), whether blackouts have occurred, and whether there has been any recent alcohol consumption
  • History of previous hospitalizations and withdrawal treatment, and history of psychiatric and internal medicine consultations
  • Record of changes in current symptoms (when they began, situations in which they worsen, effects on daily life, etc.)
  • Information about the living environment: cohabitants, availability of caregiving, occupation, and whether the patient drives
• Items to check during an outpatient visit (to prepare for the medical interview)
  • Whether there has been recent memory loss or risk of accidents (falls, driving)
  • The patient's sleep, meals, weight changes, and urinary or bowel abnormalities
  • Whether there is a risk of self-harm or harm to others (aggression, suicidal thoughts)
• Guidance on emergency situations
  • If severe confusion or delirium, seizures, reduced consciousness, difficulty breathing, severe bleeding, or other such symptoms occur, visiting an emergency room is recommended.

Examples of General Questions to Ask the Doctor

• What are the main side effects and precautions for this medication (the prescribed medication)?
• How do you assess the likelihood that my cognitive impairment will recover (the prognosis)?
• Which medications or programs (short-term hospitalization, outpatient addiction clinic) do you recommend for maintaining abstinence from alcohol?
• What safety precautions should I take in daily life (driving, operating machinery, etc.)?
• Which tests are needed (internal medicine evaluation, liver function tests, neuroimaging, neuropsychological testing), and how should periodic follow-up be conducted?

Examples of Condition-Specific Questions

• To what extent and in which areas, particularly memory and executive function, might my cognitive function improve after abstaining from alcohol? What is the expected timeframe for improvement?
• If Wernicke symptoms (abnormal eye movements, gait ataxia, confusion) are suspected, what treatment (such as thiamine administration) should be provided immediately at the hospital? What should be done in an emergency?

Additional Important Guidance

• Some cognitive impairment may improve with abstinence from alcohol and appropriate nutrition and treatment, but damage that has progressed over a long period may be irreversible. Early diagnosis and immediate intervention have a major impact on prognosis.
• If acute symptoms (suspected Wernicke encephalopathy, severe withdrawal symptoms, seizures, changes in consciousness, etc.) occur, immediate emergency room evaluation is recommended.