Epileptiform Activity Causes & Reasons

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Epileptiform Activity Symptom Checker: Possible causes include Traumatic Brain Injury. Check the full list of possible causes and conditions now! Talk to our Chatbot to narrow down your search.

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Possible Causes

Traumatic Brain Injury

Ling, Spontaneous Epileptiform Activity in Rat Neocortex after Controlled Cortical Impact Injury, Journal of Neurotrauma, 27, 8, (1541), (2010). [doi.org]

Kombian, Anticonvulsant enaminone E139 suppresses epileptiform activity in rat hippocampal slices, Epilepsy Research, 76, 2-3, (85), (2007). Steven L. Neese, Luke K. [doi.org]

Tevfik Yılmaz, Metehan Akça, Yahya Turan, Hakan Ocak, Kağan Kamaşak and Mehmet Yildirim, Efficacy of dexamethasone on penicillin-induced epileptiform activity in rats: An [doi.org]

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Hyponatremia

Hyponatremia is the most common electrolyte disorder in hospitalized patients associated with increased morbidity and mortality. On the other hand, inappropriate treatment of hyponatremia (under- or mainly overtreatment) may also lead to devastating consequences. The appropriate diagnosis of the causative factor[…] [ncbi.nlm.nih.gov]

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Temporal Lobe Epilepsy

However, little is currently known about the modulation of these networks by epileptiform activity, such as interictal spikes and seizures. [ncbi.nlm.nih.gov]

Neurophysiologic findings in NTLE are typically a predominance of lateral temporal interictal epileptiform activity (IEA) and an ictal onset pattern consisting of irregular [ncbi.nlm.nih.gov]

Changes in Cl- transporter expression thus contribute to human epileptiform activity, and molecules acting on these transporters may be useful antiepileptic drugs. [ncbi.nlm.nih.gov]

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Epilepsy

It remains unclear whether seizures and epileptiform activity on the EEG are causative or comorbid. [ncbi.nlm.nih.gov]

Through an accurate Video-EEG polygraphic analysis, we demonstrated that seizures are related to an abnormal increase of epileptiform activity after eye-closure or loss of [ncbi.nlm.nih.gov]

Her EEG at 2 years was reported as showing frequent left central epileptiform activity. [brain.oxfordjournals.org]

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Generalized Clonic or Tonic-Clonic Seizures

epileptiform activity. [anesthesiology.pubs.asahq.org]

The cerebral cortex is the only area from which epileptiform activity arises with any frequency. [dartmouth.edu]

When the system detects epileptiform activity, it directly stimulates the seizure focus, with the aim of disrupting epileptiform activity before a seizure can develop. [msdmanuals.com]

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Epilepsy with Continuous Spike-and-Slow-Waves during Sleep

Specific cutoff thresholds or measurement methods for epileptiform activity frequency have yet to be defined. [jcsm.aasm.org]

epileptiform activity on the patient are unclear. [emedicine.medscape.com]

Various childhood epileptic syndromes associated with dramatic activation of the epileptiform activities during slow wave sleep may manifest with progressive psychomotor decline [intechopen.com]

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Hyperglycemia

Focal neurological symptoms may provide the first clue to the presence of nonketotic hyperglycemia (NKH). We report a patient with hemichorea-hemiballism (HC-HB) as the first manifestation of NKH. CT Brain revealed hyperdensity in bilateral globus pallidus (GP) and putamen predominantly on right side. Blood sugar[…] [ncbi.nlm.nih.gov]

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Focal Epilepsy - Speech Disorder - Mental Retardation

Specific cutoff thresholds or measurement methods for epileptiform activity frequency have yet to be defined. [jcsm.aasm.org]

epileptiform activity on the patient are unclear. [emedicine.medscape.com]

Overall, our study confirms previous findings about the preferential occurrence of epileptiform activity during CAP. [semmelweis.hu]

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Rolandic Epilepsy

This impairment could be correlated with the amount of nocturnal epileptiform activity. [ncbi.nlm.nih.gov]

Abstract Benign rolandic epilepsy (BRE) and Landau-Kleffner syndrome (LKS) are similar epilepsy syndromes with sleep-accentuated epileptiform activity, sporadic seizures, [ncbi.nlm.nih.gov]

CONCLUSION: In RE, structural connectivity is reduced for several connections involving the rolandic regions, from which the epileptiform activity originates. [ncbi.nlm.nih.gov]

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Panayiotopoulos Syndrome

EEG revealed an abnormal pattern with recurrent multifocal epileptiform activity over the bilateral occipital and frontal regions during sleep. [ncbi.nlm.nih.gov]

activity in the EEG. [scielo.br]

During non-rapid eye movement (NREM) sleep, the EEG showed epileptiform activity of continuous spike-wave greater than 85% ( Fig 2 ). [scielo.br]

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Kohlschütter-Tönz Syndrome

Electroencephalography (EEG) typically shows epileptiformic activities and a loss of normal background activities. [xpertdox.com]

[…] background activity that was abnormal, focal discharges over the temporal lobe, and multifocial epileptiform activity. [9] Several patients showed a loss of normal background [en.wikipedia.org]

[…] cerebellar in four individuals and basal ganglia has been evident through MRIs. [2] [7] Electroencephalography [ edit ] Electroencephalography (EEG) in one patient showed epileptiformic [en.wikipedia.org]

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Juvenile Myoclonic Epilepsy

The electro encephalogram revealed generalised polyspike and wave epileptiform activity with photosensitivity. [ncbi.nlm.nih.gov]

Among nonrapid eye movement (NREM) sleep stages, EEG epileptiform activity was maximal during stages III and IV. [ncbi.nlm.nih.gov]

SIGNIFICANCE: These findings implicated the abnormality of thalamomotor cortical network in JME which were associated with the genesis and propagation of epileptiform activity [ncbi.nlm.nih.gov]

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Photosensitive Epilepsy

See Hamandi (doi:10.1093/awx049) for a scientific commentary on this article.Photosensitivity is a condition in which lights induce epileptiform activities. [ncbi.nlm.nih.gov]

Left bottom: noise patterns do not elicit large gamma oscillations and are also unlikely to trigger epileptiform activity. Credit: Hermes et al. [medicalxpress.com]

Right top: the same patterns that elicit gamma oscillations are also the most likely to evoke epileptiform activity and seizures in patients with photosensitive epilepsy. [medicalxpress.com]

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Febrile Infection-Related Epilepsy Syndrome

activity and/or the possible negative effects of prolonged burst-suppression coma. [ncbi.nlm.nih.gov]

Interictal electroencephalography in chronic phase in 3 of 4 patients identified diffuse slowing of cortical rhythm, in 2 cases – epileptiform activity in the form of a spike-and-wave [ingentaconnect.com]

[…] guidelines for SE treatment, to improve the bad outcome of this severe condition, at least limiting the negative effects of prolonged high metabolic demand due to continuous epileptiform [ncbi.nlm.nih.gov]

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Status Epilepticus

activity ( 85%) during NREM sleep. [ncbi.nlm.nih.gov]

Our study highlights that a second EEG study might be necessary to confirm epileptiform activity, when clinical features and other tests suggest an epileptic origin. [ncbi.nlm.nih.gov]

Video electroencephalography showed no epileptiform activity, but diffuse slow waves intermixed with small fast waves were seen for all leads. [ncbi.nlm.nih.gov]

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Generalized Epilepsy with Febrile Seizures Plus

Their father experienced one simple febrile seizure in infancy and two generalized tonic-clonic seizures after head trauma in adulthood, and had generalized epileptiform activity [ncbi.nlm.nih.gov]

Her EEG at 2 years was reported as showing frequent left central epileptiform activity. [doi.org]

activity – A-II-1 38 yrs, 6 mths 10 mths 14 yrs GTCS, FS Nil Normal – 2 yrs: L central epileptiform 4 yrs: diffuse slowing, more marked over R central region 5 yrs: bilateral [doi.org]

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Postictal State

bilateral epileptiform activity or history of encephalitis), and a family history of psychiatric illness. [doi.org]

During the very short transient periods of sudden cessation of the epileptiform activity the patient returned immediately to an apparent normal mental state. [karger.com]

The most consistent risk factors for PP are evidence of bilateral or widespread CNS injury, including encephalitis, head injury, bilateral interictal epileptiform activity [doi.org]

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Insomnia

PURPOSE: We report a novel case of "grand mal on awakening" from sleep presenting with intractable insomnia associated with interictal epileptiform activity (IEA) during sleep [ncbi.nlm.nih.gov]

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Progressive Myoclonic Epilepsy Type 8

Generalized epileptiform activity Intermittent photic stimulation Negative 10 to 20 Hz provoked a photoparoxysmal response Negative 6 and 20 Hz provoked a photoparoxysmal [onlinelibrary.wiley.com]

[…] fast spikes, polyspikes and polyspike‐and‐wave discharges Slow background activity, spike‐ and polyspike‐and‐wave discharges and multifocal spikes activated by non‐REM sleep [onlinelibrary.wiley.com]

Slow background activity mixed with low‐voltage fast activity, along with diffuse, irregular, spike‐ and polyspike‐and‐wave discharges Slow background activity and multifocal [onlinelibrary.wiley.com]

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Hypertension

Following eclampsia, the EEG may reveal epileptiform activity. [emedicine.medscape.com]

Electroencephalography An electroencephalogram (EEG) may be indicated to evaluate recurrent seizure activity, persistent altered level of consciousness, or altered mental [emedicine.medscape.com]

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Hypothalamic Hamartoma

activity. [ncbi.nlm.nih.gov]

Presurgical assessment with intracranial electroencephalography (EEG) monitoring recorded gelastic seizures with generalized epileptiform activity. [ncbi.nlm.nih.gov]

In needle biopsy specimens of HH tissue, field potential recordings demonstrated spontaneous epileptiform activities similar to those observed in other etiologically distinct [ncbi.nlm.nih.gov]

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Metabolic Syndrome

Although sometimes myoclonic fits are still observed, EEG is without epileptiform activity until today. [bib.irb.hr]

Tonic seizures, myoclonic jerks and multifocal epileptiform activity on EEG lasted until the age of 6 years. [bib.irb.hr]

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Panic Attacks

A clinical trial using anti-epileptics could be successful in patients not responding to antidepressants or in the presence of epileptiform EEG activity. [ncbi.nlm.nih.gov]

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Focal Onset Impaired Awareness Seizure

EEG technologists may use activation procedures such as hyperventilation and photic stimulation to enhance the ability of EEG to detect epileptiform activity. [currentpsychiatry.com]

Focal seizures refer to epileptiform activity starting in one area on one side of the brain. [ncbi.nlm.nih.gov]

An electroencephalogram (EEG) ( Fig 1 ) showed epileptiform activity initiated in the posterior left temporal region, with recruiting activity, irradiated to the left frontal [scielo.br]

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Progressive Myoclonic Epilepsy Type 3

EEG typically reveals epileptiform activity with predominance in the posterior region and photosensitivity. [orpha.net]

Generalized epileptiform discharges in 84.2% of patients, while focal discharges were present in ten patients. One of the patient had multifocal epileptiform activity. [bioline.org.br]

The EEG showed slow background activity with generalised epileptiform discharges manifesting as spike/polyspike wave complexes of variable duration that persisted throughout [elsevier.es]

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Focal Motor Seizure

If a seizure begins in the hand area, there may be spread of epileptiform activity rostrally and caudally. [78stepshealth.us]

Special techniques may be required to demonstrate epileptiform activity in patients with focal seizures. [neupsykey.com]

The cerebral cortex is the only area from which epileptiform activity arises with any frequency. [dartmouth.edu]

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Idiopathic Generalized Epilepsy

Wicket spikes (WS) are a normal variant EEG pattern that sometimes can be mistaken for epileptiform activity. [ncbi.nlm.nih.gov]

Forty patients out of 249 (16.1%) had increased epileptiform activity during activation procedures. [annalsofian.org]

Three minutes of artifact-free EEG background activity (without epileptiform potentials) was analyzed for each patient in both conditions. [ncbi.nlm.nih.gov]

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Lafora Disease

With disease progression, there is increased epileptiform activity, and a striking change in the spike-wave complexes, with a marked increase in frequency up to 6-12 Hz, and [ncbi.nlm.nih.gov]

Overtime, the background becomes disorganized and epileptiform activity becomes more constant, and photosensitive discharges are regular late features. [wiki.med.umich.edu]

An EEG study obtained at age 19 while the patient was awake and on treatment was highly abnormal with continuous low frequency bilateral epileptiform activity with no discernable [ncbi.nlm.nih.gov]

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Familial Infantile Myoclonic Epilepsy

activity including periodic epileptiform discharges (PEDs) should be considered evidence of continuing GCSE and treated aggressively 4 Treiman DM. [powershow.com]

 No associated brain pathology  Typically some improvement in neurological status once epileptiform activity has resolved. 40.  Severe myoclonic epilepsy or severe polymorphic [slideshare.net]

Individuals typically show near continuous epileptiform activity during as much as 80 percent of their sleep. The syndrome frequently causes lifelong language deficits. [massgeneral.org]

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Benign Prostatic Hyperplasia

The percentage of hits for pseudowords was lower when there was bilateral, asynchronous epileptiform activity. [scielo.br]

The interictal electroencephalogram (EEG) shows normal base activity and epileptiform activity, characterized by high amplitude spikes mainly in the central or mid-temporal [scielo.br]

Key words: benign childhood epilepsy with centrotemporal spikes, rolandic epilepsy, EEG, epileptiform activity, reading, cognition. [scielo.br]

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