Bilateral hippocampal infarction and amnesia: A case report

The hippocampus along with other structures of the medial temporal lobe plays an important role in the process of learning and memory consolidation. Bilateral hippocampal lesions lead to persistent anterograde amnesia while unilateral damage results in milder, content-specific forms of amne...

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Main Authors: Kostić Smiljana, Pasovski Viktor, Krsmanović Željko, Bošković Željko, Kostić Dejan, Jovanovski Aleksandar, Jović-Stošić Jasmina
Format: Article
Language:English
Published: Military Health Department, Ministry of Defance, Serbia 2015-01-01
Series:Vojnosanitetski Pregled
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/0042-8450/2015/0042-84501500015K.pdf
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author Kostić Smiljana
Pasovski Viktor
Krsmanović Željko
Bošković Željko
Kostić Dejan
Jovanovski Aleksandar
Jović-Stošić Jasmina
author_facet Kostić Smiljana
Pasovski Viktor
Krsmanović Željko
Bošković Željko
Kostić Dejan
Jovanovski Aleksandar
Jović-Stošić Jasmina
author_sort Kostić Smiljana
collection DOAJ
description The hippocampus along with other structures of the medial temporal lobe plays an important role in the process of learning and memory consolidation. Bilateral hippocampal lesions lead to persistent anterograde amnesia while unilateral damage results in milder, content-specific forms of amnesia. Hippocampus may be affected by an acute or chronic pathologic process from a wide spectrum of neurological disorders. Case report. A 61-year-old female patient with a long history of hypertension, glucose intolerance, hypercholesterolemia and depression was hospitalized for acute anterograde amnesia, which led to repeated excessive drug taking. By further examinations that included laboratory tests, electroencephalography, Doppler sonography of intra- and extracranial vessels and neurovisualization methods [multislice computed tomography (MSCT) and magnetic resonance imaging (MRI) of the brain] bilateral hippocampal ischemia that occurred at different times was detected. Cognitive and neuropsychological evaluation revealed an isolated severe damage of episodic memory with the inability of retention of new information which persisted at the control examination three months later. The assumed mechanism of occurrence of ischemia in this case could be arterio-arterial embolism. Conclusion. Although ischemic stroke is one of the most common neurological diseases, ischemic stroke of the hippocampus is rare, the isolated bilateral presentation with clinical signs of severe amnestic syndrome in particular. Timely recognition and modern therapeutic approach could have a favorable impact on the recovery from severe neurological, cognitive deficit. It could be suggested that in patients with the clinical image of acute anterograde amnesia and vascular risk factors the MSCT examination of the brain with computed tomography perfusion and angiography is performed immediately upon hospitalization.
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spelling doaj.art-df12bb79ef7f4ecf9590cd34efa529d62022-12-21T23:00:48ZengMilitary Health Department, Ministry of Defance, SerbiaVojnosanitetski Pregled0042-84502015-01-0172654555110.2298/VSP140330015K0042-84501500015KBilateral hippocampal infarction and amnesia: A case reportKostić Smiljana0Pasovski Viktor1Krsmanović Željko2Bošković Željko3Kostić Dejan4Jovanovski Aleksandar5Jović-Stošić Jasmina6Military Medical Academy, Clinic for Neurology, BelgradeMilitary Medical Academy, Clinic for Neurology, BelgradeMilitary Medical Academy, Clinic for Neurology, BelgradeMilitary Medical Academy, Clinic for Neurology, BelgradeMilitary Medical Academy, Institute for Radiology, BelgradeMilitary Medical Academy, Institute for Radiology, BelgradeMilitary Medical Academy, National Poison Control Centre, Belgrade + University of Defence, Faculty of Medicine of the Military Medical Academy, BelgradeThe hippocampus along with other structures of the medial temporal lobe plays an important role in the process of learning and memory consolidation. Bilateral hippocampal lesions lead to persistent anterograde amnesia while unilateral damage results in milder, content-specific forms of amnesia. Hippocampus may be affected by an acute or chronic pathologic process from a wide spectrum of neurological disorders. Case report. A 61-year-old female patient with a long history of hypertension, glucose intolerance, hypercholesterolemia and depression was hospitalized for acute anterograde amnesia, which led to repeated excessive drug taking. By further examinations that included laboratory tests, electroencephalography, Doppler sonography of intra- and extracranial vessels and neurovisualization methods [multislice computed tomography (MSCT) and magnetic resonance imaging (MRI) of the brain] bilateral hippocampal ischemia that occurred at different times was detected. Cognitive and neuropsychological evaluation revealed an isolated severe damage of episodic memory with the inability of retention of new information which persisted at the control examination three months later. The assumed mechanism of occurrence of ischemia in this case could be arterio-arterial embolism. Conclusion. Although ischemic stroke is one of the most common neurological diseases, ischemic stroke of the hippocampus is rare, the isolated bilateral presentation with clinical signs of severe amnestic syndrome in particular. Timely recognition and modern therapeutic approach could have a favorable impact on the recovery from severe neurological, cognitive deficit. It could be suggested that in patients with the clinical image of acute anterograde amnesia and vascular risk factors the MSCT examination of the brain with computed tomography perfusion and angiography is performed immediately upon hospitalization.http://www.doiserbia.nb.rs/img/doi/0042-8450/2015/0042-84501500015K.pdfhippocampusbrain infarctionamnesia, anterogrademagnetic resonance imaging
spellingShingle Kostić Smiljana
Pasovski Viktor
Krsmanović Željko
Bošković Željko
Kostić Dejan
Jovanovski Aleksandar
Jović-Stošić Jasmina
Bilateral hippocampal infarction and amnesia: A case report
Vojnosanitetski Pregled
hippocampus
brain infarction
amnesia, anterograde
magnetic resonance imaging
title Bilateral hippocampal infarction and amnesia: A case report
title_full Bilateral hippocampal infarction and amnesia: A case report
title_fullStr Bilateral hippocampal infarction and amnesia: A case report
title_full_unstemmed Bilateral hippocampal infarction and amnesia: A case report
title_short Bilateral hippocampal infarction and amnesia: A case report
title_sort bilateral hippocampal infarction and amnesia a case report
topic hippocampus
brain infarction
amnesia, anterograde
magnetic resonance imaging
url http://www.doiserbia.nb.rs/img/doi/0042-8450/2015/0042-84501500015K.pdf
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AT krsmanoviczeljko bilateralhippocampalinfarctionandamnesiaacasereport
AT boskoviczeljko bilateralhippocampalinfarctionandamnesiaacasereport
AT kosticdejan bilateralhippocampalinfarctionandamnesiaacasereport
AT jovanovskialeksandar bilateralhippocampalinfarctionandamnesiaacasereport
AT jovicstosicjasmina bilateralhippocampalinfarctionandamnesiaacasereport