Global Amnesia

Global Amnesia refers to a severe form of amnesia, a condition characterized by the sudden and complete loss of memory for personal identity, past experiences, and knowledge. It is also commonly known as global transient amnesia or transient global amnesia (TGA).

Causes

Global Amnesia can be caused by various factors including:

• Stroke or transient ischemic attack (TIA)
• Head injury or concussion
• Certain medications or drug interactions
• Migraine headaches
• Epileptic seizures
• Hypertension (high blood pressure)
• Hypoxia (lack of oxygen)

Symptoms

Common symptoms of Global Amnesia include:

• Difficulty in forming new memories
• Inability to recall recent events or past memories
• Repetitive questioning due to failed memory retrieval
• Anxiety or confusion
• Loss of orientation (temporary disorientation of time and place)
• Retained procedural memory (ability to perform learned skills or tasks)

Diagnosis and Treatment

Diagnosis of Global Amnesia involves ruling out other potential causes for memory loss through physical examinations, neurological tests, and brain imaging techniques. As the condition typically resolves on its own, treatment focuses on supportive care, reassurance, and monitoring for any underlying causes that require intervention.

Prognosis

The prognosis for Global Amnesia is generally positive, with most individuals recovering their lost memories within 24 hours to a few days. The condition rarely leads to long-term memory impairment, and recurrence is uncommon.