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Recording Brain Electromagnetic Activity During the Administration of the Gaseous Anesthetic Agents Xenon and Nitrous Oxide in Healthy Volunteers

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Published on: January 13, 2018

Transient global amnesia with post-hyperventilation temporal sharp waves--a case report.

Hye Seon Jeong¹, Jeong Soo Moon, In Chul Baek

¹Department of Neurology, Chungnam National University Hospital, Daejeon, Republic of Korea.

|October 19, 2010

Summary

This summary is machine-generated.

Transient global amnesia following underwater swimming is rare. This case highlights potential hippocampal involvement and electroencephalogram (EEG) abnormalities.

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Area of Science:

Neurology
Neuroscience
Clinical Medicine

Background:

Transient global amnesia (TGA) is a distinct clinical syndrome characterized by sudden, temporary memory loss.
The etiology of TGA remains largely unknown, with various triggers proposed, including strenuous physical activity and diving.

Observation:

A 55-year-old woman experienced 7 hours of global amnesia after underwater swimming.
Neurological examination revealed no deficits other than the amnesia.
Electroencephalogram (EEG) showed sharp waves in the temporal regions, exacerbated by hyperventilation.

Findings:

Diffusion-weighted imaging (DWI) revealed high signal intensity in the right hippocampus 56 hours post-symptom onset.
Follow-up EEG recordings demonstrated the disappearance of the temporal sharp waves.

Implications:

This case suggests a potential link between underwater swimming, transient global amnesia, and temporary hippocampal changes.
The findings contribute to understanding the neurophysiological underpinnings of TGA and the potential role of the hippocampus.
Further research is warranted to explore the association between aquatic activities and TGA.