Cortical Regional Hyperperfusion in Nonconvulsive Status Epilepticus Measured by Dynamic Brain Perfusion CT

Hauf, Martinus; Slotboom, Johannes; Nirkko, Arto C.; Bredow, Ferdinand von; Ozdoba, Christoph; Wiest, Roland

doi:10.3174/ajnr.a1456

Cited by 89 publications

(105 citation statements)

References 32 publications

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“…2,16,20) Epileptic activity causes increased metabolic demand in the involved cortex, which is accompanied by temporarily increased regional cerebral perfusion. 6,8) Since PLEDs are one of the EEG patterns in patients with NCSE, 2,9) the pathophysiology of``ictal'' hyperperfusion could be similar to that observed in our case.…”

Section: Discussionsupporting

confidence: 58%

Cerebral Hyperperfusion Syndrome Associated With Non-convulsive Status Epilepticus Following Superficial Temporal Artery-Middle Cerebral Artery Anastomosis -Case Report-

Hamamura

Morioka

Sayama

et al. 2010

Neurol. Med. Chir.(Tokyo)

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A 77-year-old man developed cerebral hyperperfusion syndrome with temporal deterioration of consciousness and worsening of left hemiparesis on the 6 th postoperative day following superficial temporal artery-middle cerebral artery (STA-MCA) anastomosis for right M 1 occlusion. Electroencephalography (EEG) revealed frequent ictal discharges in the right hemisphere, although convulsive seizures were not apparent. Administration of anticonvulsants was performed based on the diagnosis of non-convulsive status epilepticus (NCSE). Complete recovery from hyperperfusion syndrome was achieved with rapid improvement of EEG findings. The present case demonstrates the pathophysiological mechanism of hyperperfusion syndrome associated with NCSE after STA-MCA anastomosis.

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Section: Discussionsupporting

confidence: 58%

Cerebral Hyperperfusion Syndrome Associated With Non-convulsive Status Epilepticus Following Superficial Temporal Artery-Middle Cerebral Artery Anastomosis -Case Report-

Hamamura

Morioka

Sayama

et al. 2010

Neurol. Med. Chir.(Tokyo)

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“…Seizures have been associated with worse outcome in critically ill adults [23][24][25] and neonates 15,26 -29 and seizure detection impacts anticonvulsant use in children 30 and adults. 31 While plausible mechanisms by which electrographic seizures may lead to brain injury have been described, 32,33 further study is needed to determine whether identification and treatment of NCS and NCSE improves outcome.…”

Section: Results Subject and Enrollment Characteristicsmentioning

confidence: 99%

Nonconvulsive seizures are common in critically ill children

Abend

Gutierrez‐Colina²,

Topjian³

et al. 2011

Neurology

196

256

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“…Another important differential diagnosis for stroke mimics, postictal focal deficit (Todd's paresis), which would have warranted electroencephalography (EEG) after imaging, was abandoned as the decisive clues became available by the mother's information. The role of PCT in epileptogenic conditions is yet unclear, as both hypoperfusion and hyperperfusion have been demonstrated in case reports, possibly depending on whether the underlying pathophysiology was truly postictal or focal status epilepticus, respectively [8,9]. …”

Section: Discussionmentioning

confidence: 99%

Prolonged aphasia and perfusion computed tomography abnormalities in migraine with aura

Angermaier¹,

Langner²,

Kirsch³

et al. 2014

IJCRI

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International Journal of Case Reports and Images (IJCRI) is an international, peer reviewed, monthly, open access, online journal, publishing high-quality, articles in all areas of basic medical sciences and clinical specialties.Aim of IJCRI is to encourage the publication of new information by providing a platform for reporting of unique, unusual and rare cases which enhance understanding of disease process, its diagnosis, management and clinico-pathologic correlations. Migraine with aura is defined as a recurrent disorder manifesting in attacks of reversible focal neurological symptoms that usually develop gradually, last for less than 60 minutes and is followed by characteristic headache and vegetative symptoms. Acute aphasia is a well-known aura symptom. We present a case of an acute focal neurologic deficit in which perfusion imaging proved helpful in rapid decision making for the appropriate treatment by identifying the syndrome as a stroke mimic. Case Report: A 24-year-old male student was admitted with global aphasia and headache precluding any interview for the patient's medical history. Initial perfusion computed tomography scan showed hypoperfusion in the entire left hemisphere, pronounced in the left occipitotemporal lobe and Broca's area. This pattern which was not restricted to a vascular territory and hypoperfusion above critical ischemia guided us in classifying the deficit as a stroke mimic, specifically as migraine aura. Conclusion:In the hyperacute phase of stroke-like symptoms, multimodal computed tomography scan can add valuable information for differentiating ischemic stroke from stroke mimics and support treatment decision-making.

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Cortical Regional Hyperperfusion in Nonconvulsive Status Epilepticus Measured by Dynamic Brain Perfusion CT

Cited by 89 publications

References 32 publications

Cerebral Hyperperfusion Syndrome Associated With Non-convulsive Status Epilepticus Following Superficial Temporal Artery-Middle Cerebral Artery Anastomosis -Case Report-

Cerebral Hyperperfusion Syndrome Associated With Non-convulsive Status Epilepticus Following Superficial Temporal Artery-Middle Cerebral Artery Anastomosis -Case Report-

Nonconvulsive seizures are common in critically ill children

Prolonged aphasia and perfusion computed tomography abnormalities in migraine with aura

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