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Nonconvulsive status epilepticus

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https://www.readbyqxmd.com/read/29322820/reevaluation-of-the-critically-ill-patients-with-nonconvulsive-status-epilepticus-by-using-salzburg-consensus-criteria
#1
Ozlem Gungor Tuncer, Ebru Altindag, Sevda Ozel Yildiz, Mecbure Nalbantoglu, Mehmet Eren Acik, Sedef Tavukcu Ozkan, Betul Baykan
OBJECTIVE: We aimed to assess the usefulness of the Salzburg Consensus Criteria (SCC) for determining the prognosis of critically ill patients with nonconvulsive status epilepticus (NCSE). METHODS: We retrospectively reviewed consecutive patients with unconsciousness followed up in the intensive care unit (ICU). Three clinical neurophysiologists, one of them blinded to clinical and laboratory data, reevaluated all EEG data independently and determined NCSE according to SCC...
January 1, 2018: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
https://www.readbyqxmd.com/read/29296085/epilepsy-in-patients-with-autism-links-risks-and-treatment-challenges
#2
REVIEW
Frank Mc Besag
Autism is more common in people with epilepsy, approximately 20%, and epilepsy is more common in people with autism with reported rates of approximately 20%. However, these figures are likely to be affected by the current broader criteria for autism spectrum disorder (ASD), which have contributed to an increased prevalence of autism, with the result that the rate for ASD in epilepsy is likely to be higher and the figure for epilepsy in ASD is likely to be lower. Some evidence suggests that there are two peaks of epilepsy onset in autism, in infancy and adolescence...
2018: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29262437/ictal-interictal-continuum-when-to-worry-about-the-continuous-electroencephalography-pattern
#3
Justine Cormier, Carolina B Maciel, Emily J Gilmore
Continuous electroencephalography (cEEG) monitoring is an invaluable tool in the evaluation of encephalopathy and coma in critically ill patients. Marked increases in cEEG monitoring, coinciding with several societal guideline statements in the last decade, have allowed earlier detection and treatment of clearly harmful patterns, including nonconvulsive seizures (NCSz) and nonconvulsive status epilepticus (NCSE). However, it has also unmasked a range of EEG patterns of less clear clinical significance, with some more "malignant" than others given their potential association with increased neuronal stress and secondary brain injury...
December 2017: Seminars in Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29260591/subacute-encephalopathy-with-seizures-in-alcoholics-sesa-presenting-as-focal-nonconvulsive-status-epilepticus
#4
Peter W Kaplan, Andrew Billnitzer, José Luis Fernández-Torre
PURPOSE: To acquaint readers with the underrecognized subacute encephalopathy with seizures in chronic alcoholics (SESA) that has more recently been associated with different types of status epilepticus. METHODS: Case reports and review of the literature on SESA and nonconvulsive status epilepticus (NCSE). RESULTS: Two cases: one with alternating bifrontoparietal NCSE, and one with focal, confusional NCSE, with imaging and EEG correlates. CONCLUSION: Underrecognized SESA may present as NCSE with focal clinical, EEG and reversible diffusion-weighted MRI abnormalities, warranting expedited diagnosis and antiseizure treatment to minimize morbidity...
December 1, 2017: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
https://www.readbyqxmd.com/read/29248799/early-withdrawal-of-non-anesthetic-antiepileptic-drugs-after-successful-termination-of-nonconvulsive-seizures-and-nonconvulsive-status-epilepticus
#5
Jennifer A Creed, Jake Son, Alfredo E Farjat, Christa B Swisher
PURPOSE: Multiple antiepileptic drugs (AEDs) are often necessary to treat nonconvulsive seizures (NCS) and nonconvulsive status epilepticus (NCSE). AED polypharmacy places patients at risk for adverse side effects and drug-drug interactions. Identifying the likelihood of seizure relapse when weaning non-anesthetic AEDs may provide guidance in the critical care unit. METHOD: Ninety-nine adult patients with successful treatment of electrographic-proven NCS or NCSE on continuous critical care EEG (CCEEG) monitoring were identified retrospectively...
December 8, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29213514/catatonia-beyond-a-psychiatric-syndrome
#6
Nathália Stela Visoná de Figueiredo, Débora Bartzen Moraes Angst, Antônio de Matos Lima Neto, Michel Ferreira Machado, Maria Sheila Guimarães Rocha, Sônia Maria Dozzi Brucki
Although catatonia is a well-known psychiatric syndrome, there are many possible systemic and neurological etiologies. The aim of this case report was to present a case of a patient with cerebral venous sinus thrombosis and infarction in which catatonia was the clinical manifestation of a possible nonconvulsive status epilepticus. To our knowledge, only one such case has been reported in the literature, which had a simplified diagnostic investigation. It is important to correctly recognize the organic cause underlying catatonia in order to treat the patient as soon as possible thereby improving outcome...
April 2017: Dementia & Neuropsychologia
https://www.readbyqxmd.com/read/29201532/clinical-presentation-epidemiology-neurophysiological-findings-treatment-and-outcome-of-nonconvulsive-status-epilepticus-a-3-year-prospective-hospital-based-study
#7
Boulenouar Mesraoua, Dirk Deleu, Hassan Al Hail, Faisal Ibrahim, Gayane Melikyan, Hassan Al Hussein, Rajvir Singh, Basim Uthman, Leopold Streletz, Peter W Kaplan, Heinz Gregor Wieser
Objective: This study reports the prevalence of Nonconvulsive Status Epilepticus (NCSE) in patients with altered mental status (AMS), and describes the clinical presentation, etiology, neurophysiological findings, neuroimaging, treatment, and outcome of NCSE in Qatar. Recording duration of continuous EEG monitoring was also discussed. Methods: This was a 3-year, prospective, hospital-based study involving patients with AMS and continuous EEG monitoring admitted to the Emergency and ICUs of Hamad Hospital, Qatar...
2017: Journal of Drug Assessment
https://www.readbyqxmd.com/read/29125184/hepatic-and-hippocampal-cytochrome-p450-enzyme-overexpression-during-spontaneous-recurrent-seizures
#8
Leonie Runtz, Benoit Girard, Marion Toussenot, Julie Espallergues, Alexis Fayd'Herbe De Maudave, Alexandre Milman, Frederic deBock, Chaitali Ghosh, Nathalie C Guérineau, Jean-Marc Pascussi, Federica Bertaso, Nicola Marchi
OBJECTIVE: Available evidence points to a role of cytochrome P450 (Cyp) drug biotransformation enzymes in central nervous system diseases, including epilepsy. Deviations in drug pharmacokinetic profiles may impact therapeutic outcomes. Here, we ask whether spontaneous recurrent seizure (SRS) activity is sufficient to modulate the expression of major Cyp enzymes in the liver and brain. METHODS: Unilateral intrahippocampal (IH) kainic acid (KA) injections were used to elicit nonconvulsive status epilepticus (SE), epileptogenesis, and SRS, as monitored by video-electroencephalography...
November 10, 2017: Epilepsia
https://www.readbyqxmd.com/read/29081627/looking-beyond-the-obvious-cefepime-induced-nonconvulsive-status-epilepticus
#9
Vinayaka Anuhya, Sushil Kiran Kunder, Sharath Madhyastha, Veena Nayak, Raviraja V Acharya, Kusugodlu Ramamoorthi, Avinash Arivazhahan, Rahul Sai Gangula
Cephalosporins are a commonly used class of antibiotics in various types of infections. Cefepime, a fourth-generation cephalosporin, has been reported to cause neurotoxicity, which can present itself as varied manifestations. Nonconvulsive status epilepticus (NCSE) is a rare manifestation of this neurotoxicity. This condition often proves difficult to diagnose because it is chiefly an electroencephalogram-based diagnosis. The authors report a case of cefepime-induced NCSE in a 57-year-old female patient with compromised renal status...
July 2017: Journal of Pharmacology & Pharmacotherapeutics
https://www.readbyqxmd.com/read/29071284/characterizing-cefepime-neurotoxicity-a-systematic-review
#10
REVIEW
Ayesha A Appa, Rupali Jain, Robert M Rakita, Shahin Hakimian, Paul S Pottinger
Neurotoxicity due to cefepime has not been well characterized. We performed a systematic review of the literature and included 5 additional cases from our center. Of the 198 cases found, the mean age was 67 years and 87% of patients had renal dysfunction. The most common clinical features were diminished level of consciousness (80%), disorientation/agitation (47%), and myoclonus (40%). It is worth noting that nonconvulsive status epilepticus was relatively common with 31% of cases, whereas only 11% had convulsive seizures...
2017: Open Forum Infectious Diseases
https://www.readbyqxmd.com/read/29064811/-the-risk-of-epileptic-seizures-during-antibiotic-therapy
#11
Ewa Czapińska-Ciepiela
Numerous antibiotics may trigger epileptic seizures or status epilepticus by decreasing inhibitory transmission in the brain, thus lowering the seizure threshold. The most potent seizurogenic effect is exerted by penicillins, cephalosporins, fluorochinolons and carbapenems. Predisposing factors that facilitate development of epileptic seizures in the course of antibiotic therapy comprise all conditions accompanied by damage to the blood-brain barrier (including cerebral trauma and encephalitis), a high dose of an antibiotic or lack of adequate dose adjustment in patients with renal failure...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29037936/super-refractory-nonconvulsive-status-epilepticus-due-to-self-poisoning-with-metaldehyde
#12
José L Fernández-Torre, Alicia Paramio-Paz, Juan Carlos Rodríguez-Borregán, Pedro Orizaola, Pilar Bosque-Varela, Miguel A Hernández-Hernández
INTRODUCTION: Metaldehyde self-poisoning in adults is uncommon and, to the best of our knowledge, an episode of super-refractory nonconvulsive status epilepticus (sr-NCSE) following an suicide attempt has not been previously demonstrated. CASE REPORT: A 68-year-old woman was admitted to our Intensive Care Unit (ICU) in coma. On neurologic examination, the pupils were reactive, brainstem reflexes were present and plantar responses were flexor bilaterally. Routine laboratory tests were unremarkable...
October 13, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28979770/novel-clinical-features-of-nonconvulsive-status-epilepticus
#13
REVIEW
Masao Nagayama, Sunghoon Yang, Romergryko G Geocadin, Peter W Kaplan, Eisei Hoshiyama, Azusa Shiromaru-Sugimoto, Mitsuru Kawamura
Nonconvulsive status epilepticus (NCSE) has rapidly expanded from classical features such as staring, repetitive blinking, chewing, swallowing, and automatism to include coma, prolonged apnea, cardiac arrest, dementia, and higher brain dysfunction, which were demonstrated mainly after the 2000s by us and other groups. This review details novel clinical features of NCSE as a manifestation of epilepsy, but one that is underdiagnosed, with the best available evidence. Also, we describe the new concept of epilepsy-related organ dysfunction (Epi-ROD) and a novel electrode and headset which enables prompt electroencephalography...
2017: F1000Research
https://www.readbyqxmd.com/read/28963903/fatty-acid-amide-hydrolase-inhibitor-urb597-may-protect-against-kainic-acid-induced-damage-to-hippocampal-neurons-dependence-on-the-degree-of-injury
#14
Irina B Mikheeva, Liubov Shubina, Nataliya Matveeva, Luybov L Pavlik, Valentina F Kitchigina
OBJECTIVE: Status epilepticus (SE) provokes changes, which lead to neuronal alterations. Endocannabinoids (eCBs) can affect the neuronal survival during excitotoxicity and brain damage. Using a kainic acid (KA)-induced experimental SE model, we investigated whether cellular changes entail damage to endoplasmic reticulum (ER), mitochondria, and nuclei in hippocampal cells (CA1 field), and whether these alterations can be diminished by treatment with URB597, an inhibitor of eCB enzymatic degradation...
September 22, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28922287/pregabalin-toxicity-manifesting-as-reversible-encephalopathy-with-continuous-triphasic-waves-in-electroencephalogram
#15
Mihir Parekh, Gopal Krishna Dash, Isthiaque Ahamed
A 74-year-old man with peripheral neuropathy due to diabetes presented with deliberate ingestion of 450 mg of pregabalin (PBG) over a period of 8 hours followed by altered mental status. A bedside electroencephalogram was performed to rule out nonconvulsive status epilepticus, which showed continuous triphasic waves (TWs) with slow background activity. He recovered after 48 hours of stopping PBG, and his repeat electroencephalogram after 72 hours did not show any TWs. We present a rare case of PBG-induced TWs thereby highlighting the extent of the etiologic spectrum of TWs and discussing the literature related to this association...
September 2017: Clinical Neuropharmacology
https://www.readbyqxmd.com/read/28866335/predictors-of-outcomes-and-refractoriness-in-status-epilepticus-a-prospective-study
#16
Murat Mert Atmaca, Nerses Bebek, Betül Baykan, Ayşen Gökyiğit, Candan Gürses
OBJECTIVE: The objective of this study was to determine the predictors of outcomes and refractoriness in status epilepticus (SE). METHODS: This is a prospective study of 59 adult patients with SE who were admitted to the Emergency Department between February 2012 and December 2013. The effects of clinical, demographic, and electrophysiologic features of patients with SE were evaluated. To evaluate outcome in SE, STESS, mSTESS, and EMSE scales were used. RESULTS: Logistic regression analysis showed that being aged ≥65years (p=0...
August 31, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28858905/electroencephalogram-abnormalities-during-positional-changes-in-brain-sagging-syndrome
#17
Benziger Bensam, Heustein L Sy, Nadia Sotudeh, Paulomi K Bhalla, Sean T Hwang, David E LeDoux
PURPOSE: Brain sagging after craniotomy and clipping of a ruptured aneurysm is a rare complication. Clinical and electrographic changes in patients with a final diagnosis of intracranial hypotension are not well described, and can be mistaken on rare occasions for other entities such as nonconvulsive status epilepticus. There may be resulting delay in the diagnosis and treatment of this potentially life-threatening disorder. METHODS: Case report and imaging. RESULTS: We present a case of intracranial hypotension in which concerning continuous electroencephalogram (cEEG) and quantitative EEG (qEEG) findings were noted during active sagging of the brain, which resolved with supine positioning...
August 30, 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28844159/do-video-eeg-monitoring-findings-in-icu-patients-with-acute-stroke-predict-development-of-seizures-and-survival-during-follow-up
#18
Halil Onder, Ethem Murat Arsava, Mehmet Akif Topcuoglu, Nese Dericioglu
PURPOSE: Ischemic or hemorrhagic stroke are among the most common causes of seizures, especially in the elderly. EEG is the only technique that can detect epileptiform abnormalities (EA) and nonconvulsive status epilepticus (NCSE), which may negatively affect recovery of these patients. Herein we aimed to investigate the potential predictive value of long-term EEG findings in terms of poststroke seizures (PSS) and survival, in stroke patients followed up in the neurological intensive care unit (NICU)...
November 2017: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
https://www.readbyqxmd.com/read/28808577/transition-from-intravenous-to-enteral-ketamine-for-treatment-of-nonconvulsive-status-epilepticus
#19
Michael A Pizzi, Prasuna Kamireddi, William O Tatum, Jerry J Shih, Daniel A Jackson, William D Freeman
BACKGROUND: Nonconvulsive status epilepticus (NCSE) is a diagnosis that is often challenging and one that may progress to refractory NCSE. Ketamine is a noncompetitive N-methyl-d-aspartate antagonist that increasingly has been used to treat refractory status epilepticus. Current Neurocritical Care Society guidelines recommend intravenous (IV) ketamine infusion as an alternative treatment for refractory status epilepticus in adults. On the other hand, enteral ketamine use in NCSE has been reported in only 6 cases (1 adult and 5 pediatric) in the literature to date...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28802513/nonconvulsive-status-epilepticus-after-electroconvulsive-therapy-a-review-of-literature
#20
Awais Aftab, Ashley VanDercar, Ayham Alkhachroum, Christine LaGrotta, Keming Gao
BACKGROUND: The clinical presentation and risk factors of nonconvulsive status epilepticus (NCSE) in the context of electroconvulsive therapy (ECT) are poorly understood, and guidance regarding diagnosis and management remains scarce. In this article, we identify case reports of ECT-induced NCSE from literature, and discuss the presentation, diagnosis, and management of these cases in the context of what is known about NCSE from the neurology literature. METHODS: A literature search on PubMed for case reports of NCSE after ECT...
July 15, 2017: Psychosomatics
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