Transient epileptic amnesia in a temporal lobe epilepsy patient with amygdala enlargement: a case study

Takeda, Masanaka; Kasama, Shuhei; Watanabe, Shohei; Kimura, Takashi; Yoshikawa, Hiroaki

doi:10.1111/psyg.12473

Cited by 6 publications

(5 citation statements)

References 8 publications

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“…In light of the findings on extended follow‐up and the reports in recent publications, 2,3 diagnostic revision of our patient is now appropriate, to TEA with amygdala enlargement. Questions remain as to the interrelation, if any, between TGA and TEA in these cases, and the nature of reversible amygdala enlargement (inflammation?…”

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confidence: 58%

“…was suspected to be TGA 3 . At 12‐month follow‐up, amygdala enlargement had decreased in one case, 2 but not the other 3 . Neither publication referenced the previously reported patient, perhaps understandably in light of the initial diagnostic interpretation of tumour, but the clinical and neuroradiological similarities between all three cases is striking.…”

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confidence: 84%

“…A patient with episodic transient amnesia and neuroradiological evidence of unilateral amygdala enlargement was previously reported 1 . This case history is now revisited to present long‐term follow‐up findings, with diagnostic reappraisal in light of the longitudinal data and other recent related publications 2,3 …”

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confidence: 87%

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Transient epileptic amnesia and amygdala enlargement revisited

Larner

2021

Psychogeriatrics

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confidence: 58%

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confidence: 84%

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Transient epileptic amnesia and amygdala enlargement revisited

Larner

2021

Psychogeriatrics

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“…Any type of lesion interfering with the functionality of upstream signaling is likely to produce similar phenomena. For example, thalamic stroke and transient epileptic amnesia also impair the efficacy of memory circuits, displaying similar clinical presentations like TGA (Giannantoni et al, 2015;Takeda et al, 2020).…”

Section: Csd-tga Modelmentioning

confidence: 99%

Transient Global Amnesia: An Electrophysiological Disorder Based on Cortical Spreading Depression—Transient Global Amnesia Model

Ding

Peng

2020

Front. Hum. Neurosci.

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Transient global amnesia (TGA) is a benign memory disorder with etiologies that have been debated for a long time. The prevalence of stressful events before a TGA attack makes it hard to overlook these precipitating factors, given that stress has the potential to organically effect the brain. Cortical spreading depression (CSD) was proposed as a possible cause decades ago. Being a regional phenomenon, CSD seems to affect every aspect of the micro-mechanism in maintaining the homeostasis of the central nervous system (CNS). Corresponding evidence regarding hemodynamic and morphological changes from TGA and CSD have been accumulated separately, but the resemblance between the two has not been systematically explored so far, which is surprising especially considering that CSD had been confirmed to cause secondary damage in the human brain. Thus, by deeply delving into the anatomic and electrophysiological properties of the CNS, the CSD-TGA model may render insights into the basic pathophysiology behind the façade of the enigmatic clinical presentation.

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“… 1 Furthermore, only a few case reports showed amygdala enlargement in patients with TEA, which was seen in our patient. 5 6 7 Among 3 reported patients with TEA with amygdala enlargement, 2 5 7 showed a decrease in the size of the amygdala after treatment with an anticonvulsant. Recently, increasing numbers of cases of temporal lobe epilepsy (TLE) with amygdala enlargement have been reported and attracted attention as a novel TLE subtype.…”

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confidence: 99%