Anterior Cerebral Artery Territory Infarction in the Lausanne Stroke Registry

Bogousslavsky, Julien; Régli, F

doi:10.1001/archneur.1990.00530020040012

Cited by 168 publications

(115 citation statements)

References 43 publications

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“…Under this hypothesis, this purported “brain state” setting role – effectively a dynamic reconfiguring of brain network architecture appropriate to task demands12 – would include not just the enlistment of task appropriate regions, but also the disengagement of task‐antagonistic or task‐irrelevant regions. Such a role for the superior medial frontal region is also suggested by research in healthy controls and in clinical populations,40 where lesions in this area are associated with deficits in the voluntary over‐riding of automatic responses41 and, in extreme cases, a lack of spontaneous, goal directed behavior 42…”

Section: Discussionmentioning

confidence: 84%

Cognitive impairment in epilepsy: the role of reduced network flexibility

Tailby

Kowalczyk

Jackson

2017

Ann Clin Transl Neurol

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ObjectiveThe dominant model of cognitive impairment in focal epilepsy has emphasised structural bases for cognitive deficits. Current theories of cognition in the healthy brain emphasise the importance of the reweighting of brain network interactions in support of task performance. Here, we explore the hypothesis that cognitive deficits in epilepsy arise through abnormalities of dynamic functional network interactions.MethodWe studied 19 healthy controls and 37 temporal lobe epilepsy (TLE) patients, using a behavioural measure of verbal fluency (the Controlled Oral Word Association Test) and an fMRI verbal fluency paradigm (Orthographic Lexical Retrieval).ResultsBehaviourally, verbal fluency was significantly impaired in TLE. Psychophysiological interaction analyses of the fMRI data, which capture state‐dependent changes in network connectivity, revealed reduced task‐dependent modulations of connectivity from left superior medial frontal cortex to left middle frontal gyrus in TLE patients. Individual differences in verbal fluency among TLE cases was correlated with task‐dependent changes in connectivity from left posterior cingulate to left superior medial frontal cortex, and from left superior medial frontal cortex to a range of right predominant brain areas.InterpretationThese data reveal that the typical pattern of task‐driven shifts in network connectivity is not observed in TLE. Our observations go beyond simple structure‐function associations and suggest that failure of network flexibility can be an important contributor to cognitive impairment in epilepsy.

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Section: Discussionmentioning

confidence: 84%

Cognitive impairment in epilepsy: the role of reduced network flexibility

Tailby

Kowalczyk

Jackson

2017

Ann Clin Transl Neurol

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“…When the arm is affected, this is usually attributed to extension of the ischaemic area to the internal capsule, although in some cases it may also be in consequence of supplemantary motor area infarction [5]. As well the patient had weakness of arm, whose MRI showed infarction involvement of supplemantary motor area, despite of not including internal capsule.…”

Section: Discussionmentioning

confidence: 99%

Akinetic Mutism Following Bilateral Anterior Cerebral Artery Territory Infarction Due to Aneurysm: A Case Report

Sunumu¹,

Ayas²,

Aksoy³

2014

Türk Beyin Damar Hast Derg

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Bilateral anterior cerebral artery (ACA) territory infarction is rare localization in stroke which should always prompt a search for an anterior communicating artery (ACoA) aneurysm. The common neurological manifestations are contralateral weakness predominate in the lower extremity, behaviour disturbance, motor inertia, muteness, incontinence, grasp reflex, diffuse rigidity, akinetic mutism. We describe a 38-year-old woman presented with a left sided hemiparesia and decrease of speech for last days. She was a smoker and morbide obese. She had no any diagnosed disease. Her neurological examination had weakness of left extremities affected leg more than the arm and akinetic mutism like as no spontaneously speech and move and grasp reflex. CT showed bilateral ACA infarction which included cingulate gyrus, the right side more than left and subarachnoid hemorrhage in the interhemispheric fissure. MRI angiography showed the appearance of AcoA aneurysm. We report a patient with bilateral infarction in the ACA which a rare localization and clinicians must be alert to exist AcoA aneurysm which may bleed, different symptoms and signs like as akinetic mutism, primitive reflexes.

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“…Vasküler nedenler arasında anterior kominikan arter anevrizmasına bağlı subaraknoid kanama sonrası vazospazm, paramedian talamik ve bilateral ASA infarktları sayılabilir (7). Yapılan çalışmalarda bilateral ASA infarktlarına en sık, gerek karotis gerekse kalpten kaynaklanan, embolinin neden olduğu bildirilmiştir (1). Olgunun EKG'sinde hızlı ventrikül yanıtlı atrial fibrilasyon olması da bu durumu desteklemektedir.…”

Section: Discussionunclassified

Akinetic Mutism Case Following Stroke

Utku¹,

Utku²

2013

Türk Beyin Damar Hast Derg

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İskemik inmeler içerisinde az görülen anterior serebral arter sulama alanı infarktlarının bilateral meydana gelmesi çok daha nadirdir. 86 yaşında kadın hasta, acil servisimize ani gelişen her iki kol ve bacaklarda kuvvet kaybı ve konuşamama şikayeti ile getirildi. Bilateral anterior serebral arter sulama alanı infarktına ikincil gelişen akinetik mutizm tanısı alan olgu nadir görülmesi nedeniyle sunulmuştur. Anahtar Sözcükler: İnme, anterior serebral arter, akinetik mutizm. AKINETIC MUTISM CASE FOLLOWING STROKE ABSTRACTIschemic strokes less common in the area of the anterior cerebral artery infarcts and bilateral occurrence is extremely rare. 86-year-old female patient, admitted to our emergency department with complaints of sudden loss of strength in both arms and legs and inability to speak. Case diagnosed as akinetic mutism due to bilateral anterior cerebral artery territory infarction presented because it is rare.

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Anterior Cerebral Artery Territory Infarction in the Lausanne Stroke Registry

Cited by 168 publications

References 43 publications

Cognitive impairment in epilepsy: the role of reduced network flexibility

Cognitive impairment in epilepsy: the role of reduced network flexibility

Akinetic Mutism Following Bilateral Anterior Cerebral Artery Territory Infarction Due to Aneurysm: A Case Report

Akinetic Mutism Case Following Stroke

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