Amnestic Syndrome


Amnestic syndrome refers to profound loss of


A. Immediate memory

B. short-term episodic memory

C. Procedural memory

D. General cognitive function



Common presentation of Amnestic Syndrome


Amnestic Syndrome Features
1Recent memory (anterograde, retrograde)Impaired
2Global amnesia
3Procedural memorySpared
4Immediate memoryPreserved
5Remote memoryPreserved
6General cognitive functionIntact
7Disorientation to time or placeyes
8Confabulationyes
Amnestic Syndrome Features


Amnestic syndromes can be classified according to cause or site of damage.


Possible etiologies


  1. herpes simplex encephalitis,
  2. anoxia,
  3. Wernicke-Korsakoff syndrome,
  4. cerebrovascular accidents,
  5. anterior communicating artery aneurysm (ACoA),
  6. tumors. 

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