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Related Concept Videos

Role of Hippocampus in Memory01:19

Role of Hippocampus in Memory

The hippocampus, a critical brain structure, plays an essential role in memory processing, particularly in the formation and retrieval of memory. This small, seahorse-shaped region is located within the medial temporal lobe, with one hippocampus in each brain hemisphere. Experimental studies involving lesions in the hippocampi of rats have demonstrated significant impairments in tasks such as object recognition and maze navigation, indicating the hippocampus involvement in both recognition and...

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Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury
10:59

Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury

Published on: November 19, 2012

Selective cognitive patterns resulting from bilateral hippocampal ischemia.

David Cachia1, Joan Swearer, Warren Ferguson

  • 1University of Massachusetts, Worcester, MA, USA.

Archives of Medical Science : AMS
|February 1, 2012
PubMed
Summary
This summary is machine-generated.

A rare case of severe anterograde amnesia resulted from sequential ischemic damage to both hippocampi in a patient with diabetes, hypertension, and sleep apnea. This finding highlights a unique cause of memory loss.

Keywords:
MRIamnesiamemorystroke

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Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury
10:59

Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury

Published on: November 19, 2012

2-Vessel Occlusion/Hypotension: A Rat Model of Global Brain Ischemia
09:29

2-Vessel Occlusion/Hypotension: A Rat Model of Global Brain Ischemia

Published on: June 22, 2013

Area of Science:

  • Neuroscience
  • Neurology
  • Ischemic Stroke Research

Background:

  • Memory loss, specifically anterograde amnesia, can arise from various neurological insults.
  • Bilateral hippocampal damage is an uncommon cause of severe amnesia.
  • Patient presented with significant comorbidities including diabetes, hypertension, and sleep apnea.

Observation:

  • A 54-year-old male patient presented with acute severe anterograde amnesia.
  • The patient had a history of diabetes, hypertension, and poorly controlled sleep apnea.
  • Investigations ruled out infectious, neoplastic, and epileptic causes.

Findings:

  • Magnetic Resonance Imaging (MRI) revealed sequential ischemic damage to both hippocampal formations.
  • Neuropsychological evaluation indicated a dense and focal amnestic syndrome.
  • The bilateral hippocampal ischemia, while reported, is an uncommon presentation.

Implications:

  • This case underscores the potential for bilateral hippocampal ischemia to cause severe amnesia.
  • Understanding rare causes of amnesia is crucial for accurate diagnosis and management.
  • Further research into the mechanisms of bilateral hippocampal ischemia may improve treatment strategies.