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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Patient File

Sex unknown, Age unknown

Reported Symptoms

Epileptiform Activity,

Negated

None

Unsure

None

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. [merckmanuals.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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MERRF Syndrome

The EEG of patients with MERRF usually exhibits variation in the degree of slowing of background activity and generalized epileptiform activity, which may worsen with intermittent [doi.org]

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]

EEG was abnormal in six of the nine patients and demonstrated slowing of background activity with/without generalized epileptiform discharges. [bioline.org.br]

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Hyperglycemia

Lasers Med Sci. 2018 Sep;33(7):1521-1526. doi: 10.1007/s10103-018-2511-z. Epub 2018 May 3. Author information 1 Department of Pathophysiology, Faculty of Pharmacy, Nicolaus Copernicus University in Toruń, Collegium Medicum in Bydgoszcz, Skłodowskiej-Curie Street No 9, 85-094, Bydgoszcz, Poland. krzyg@cm.umk.pl. 2[…] [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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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. [dx.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 [dx.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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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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Absence Seizure

EEG was normal in two and showed left temporal epileptiform activity in one (III‐11). All three had the GABRG2 (R43Q) mutation. [doi.org]

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

EEG was normal in two and showed left temporal epileptiform activity in one (III‐11). All three had the GABRG2(R43Q) mutation. [academic.oup.com]

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