Amnesia

Disease Description (Causes and Symptoms)

• Definition: Amnesia is a condition in which a person is unable to remember past events or recent incidents. It is distinguished from temporary forgetfulness and includes memory impairment severe enough to interfere with daily life.
• Causes
  • Psychogenic (dissociative): A condition in which memories from a specific period are lost after severe stress or a traumatic event. It is often caused by psychological factors and generally has a relatively favorable prognosis.
  • Organic: A condition caused by brain damage or abnormal brain function (such as hypoxia, head trauma, brain tumors, stroke, hypoglycemia, alcohol or drug intoxication, and neurodegenerative diseases). The possibility of recovery varies depending on the cause.
• Pathophysiology (brief): It occurs due to dysfunction or temporary impairment of brain structures involved in memory formation, storage, and retrieval, such as the hippocampus, temporal lobe, and frontal lobe. Psychogenic amnesia is explained as a form in which the pathway for memory retrieval is blocked.
• Main symptoms
  • Short-term memory loss (inability to remember recent temporary events) is the most common
  • Partial loss of long-term memory (impairment of past memories)
  • Anxiety, agitation, emotional blunting, or excitement
  • Sometimes creating and stating false memories, known as confabulation
• Differential diagnoses: Dementia (including Alzheimer disease), mild cognitive impairment, dissociative disorders, hypoglycemia, electrolyte abnormalities, and others

Treatment Methods

• General principles: Treating the underlying cause is most important (e.g., administering glucose for hypoglycemia; appropriate treatment for infection, tumors, or bleeding; discontinuing the drug if drug-induced).
• Medication treatment: There is no specific medication for amnesia itself. Medication treatment is applied according to the underlying disease (e.g., thiamine supplementation for alcoholic encephalopathy, cognitive-enhancing medication for neurodegenerative diseases, etc.).
• Non-medication treatment
  • Cognitive rehabilitation (memory training, cognitive behavioral techniques)
  • Vocational and daily-living rehabilitation and occupational therapy
  • Emotional support (family support, psychotherapy, etc.)
  • Safety management (driving restrictions, fall prevention, etc.)
• Procedures/Surgery: If the cause is a brain tumor, bleeding, or another condition requiring surgical correction, the appropriate surgery is performed
• Lifestyle management (self-care)
  • Regular sleep, a balanced diet, and avoidance of alcohol and drugs
  • Keeping a record of medications and a journal (recording changes in symptoms)
  • Using memory aids (notes, calendars, alarms, smartphone apps)
• Precautions and risk of complications
  • When memory impairment is present, the risk of safety accidents (traffic accidents, burns, etc.) increases — supervision is necessary
  • Emotional and behavioral changes, depression, and anxiety may accompany the condition
  • If the underlying cause is not treated, functional decline may persist or worsen

Checklist Before an Outpatient Visit (Including Preparation Items and Example Questions)

• Items to prepare (things to bring)
  • A list of all medications currently being taken (including prescription and nonprescription medications, herbal medicines, and dietary supplements)
  • Medical history, history of past surgeries and trauma, and history of alcohol and drug use
  • Recently occurring symptoms (when they began and under what circumstances), and a symptom diary (if possible, including dates, times, and detailed circumstances)
  • Bringing a family member or symptom witness is recommended when they are able to provide an account
  • Previous test results (CT/MRI, blood tests, neuropsychological tests, etc.) and imaging CDs or written reports
• Items that may be checked at the hospital
  • Neurocognitive testing (memory, concentration, executive function, etc.)
  • Blood tests (blood glucose, electrolytes, vitamins, etc.) and, if necessary, imaging (CT/MRI) and EEG (if a seizure is suspected)
• Examples of questions to ask the doctor during the outpatient visit (for preparation before the appointment)
  • "How do you assess when this symptom began and how it has progressed?"
  • "What additional tests are needed, and why?"
  • "Could any of the medications I am currently taking affect my symptoms?"

Examples of General Questions to Ask the Doctor

• What are the expected effects and common side effects of this medication (or treatment)?
• What is the most likely cause in my case?
• What is the expected prognosis? To what extent is recovery possible?
• How long should I take precautions in daily life (driving, returning to work, childcare, etc.)?
• Are there any recommended cognitive rehabilitation programs or specialized centers?

Examples of Condition-Specific Questions

• I recently experienced head trauma, fainting, or a seizure. How likely is it that this has caused persistent memory impairment?
• If stress-related (dissociative) amnesia is suspected, how should the priority between psychiatric treatment (such as psychotherapy) and neurological testing be determined?