EEG Seizure Activity: Causes & Reasons

Possible Causes for EEG Seizure Activity

If your child experiences an absence seizure during an EEG, brain activity related to the seizure will be recorded. [livestrong.com]

Eighteen patients had “generalized EEG seizure activity” during the status, but 2 of them were finally diagnosed as suffering from focal epilepsy. [hindawi.com]

Your seizure diary will help a neurologist see any patterns in seizure activity. Have your doctor or neurologist schedule diagnostic testing. [livestrong.com]

Status Epilepticus

Propofol was given to suppress EEG activity Case report Observation of EEG activity Propofol appeared to suppress EEG seizure activity Case report Kuisma M and Roine RO 1995 [bestbets.org]

Seizures continued with frequent myoclonic jerks localized on the face and upper arms. EEG showed seizure activity with spikes on rhythmic continuous waves. [ncbi.nlm.nih.gov]

Treatment with 10 mg/kg s.c. diazepam at the onset of SE (B) rapidly blocks seizure activity, returning EEG amplitudes to normal values. [meliordiscovery.com]

Focal Motor Seizure

During a video-EEG study, these focal motor seizures progressed into a generalised myoclonic status epilepticus. [semanticscholar.org]

EEG: Focal seizures may be associated with a focal area of irregular electrical activity on an EEG, particularly right before, during, or after the seizure. [verywellhealth.com]

[…] electroencephalographic (EEG) patterns can be found in patients with minimal or subtle motor activity during a secondarily generalized seizure (Case 11-1).5 Thus, the operational [neurology.mhmedical.com]

Epilepsy with Generalized Tonic-Clonic Seizures

[…] semiology and EEG ictal activity. [scielo.br]

Sometimes, the visible symptoms last longer than the seizure activity on an EEG. [epilepsytalk.com]

Focal-Onset Impaired-Awareness Seizure

This records electrical activity in the brain. EEG can show unusual electrical activity patterns. Different types of seizures can be identified with these patterns. [cedars-sinai.edu]

Video/EEG monitoring has been used since the 1960s and is the gold standard in evaluating patients with seizures or episodes that resemble seizures. [currentpsychiatry.com]

[…] is are epileptic spasms (includes infantile spasm) and tonic-clonic Behavior arrest Epilepsy Types Generalized Epilepsy EEG shows generalized spike-wave activity May have [specialty.mims.com]

Lennox-Gastaut Syndrome

This suggests that the frequent seizures and abnormal EEG activity that is seen between seizures can lead to or be associated with cognitive and behavioral problems. [epilepsy.com]

Scalp EEG of the tonic seizures of LGS is characterized by a diffuse high-voltage slow transient evolving into generalized low-voltage fast activity, likely reflecting sustained [ncbi.nlm.nih.gov]

Ninety-eight patients >1 year to <30 years of age, with slow spike-and-wave patterns on EEG, seizure types including drop attacks, and either a history of or active atypical [ncbi.nlm.nih.gov]

Versive Seizure

Seizure onset was defined as the earliest EEG or clinical evidence of seizure activity (McNally et al., 2005) and seizure cessation when no EEG evidence of seizure activity [onlinelibrary.wiley.com]

Sudden cessation of motor activity, Flickering of the eyes and symptoms last less than 30 seconds. Characteristic EEG finding of this seizure is the 3Hz spike. [youtube.com]

Rolandic Epilepsy

The EEG abnormalities are unique, consisting of generally high amplitude, centrotemporal spikes that are activated by sleep. [clinicaltrials.gov]

BRE is characterized by focal seizures, meaning abnormal electrical brain activity occurs on only one side of the brain. [chp.edu]

Electroencephalography (EEG) shows typical centrotemporal spike and spike-and-wave complexes, often bilateral and asynchronous, activated by sleep. [ncbi.nlm.nih.gov]

Epilepsy

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

Application of a vagus nerve stimulator led to temporary improvement in seizure frequency, general neurological condition, and EEG background activity. [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]

Temporal Lobe Epilepsy

[…] of seizure onset by scalp EEG. [ncbi.nlm.nih.gov]

Video/EEG monitoring showed no evidence of ongoing seizure activity. [ncbi.nlm.nih.gov]

This prospective study shows that sleep activation on EEG, ictal automatisms, occurrence of focal to bilateral tonic-clonic seizures, and increased number of tried AEDs are [tandfonline.com]

Myoclonic-Astatic Epilepsy

All had mental retardation and persisting seizures. EEG showed long sequences of slow spike-wave activity and half the patients had spike and slow wave foci. [ncbi.nlm.nih.gov]

Interictal EEG showed in 88.2% patients a slow background activity. All patients had diffuse epileptic abnormalities at the onset activating during sleep. [moh-it.pure.elsevier.com]

EEG usually shows generalized spike-wave activity interictally and during seizures and background activity can show various degrees of slowing. [orpha.net]

Epilepsia Partialis Continua

Electroencephalogram (EEG) subsequently confirmed electrographic seizures originating from the right occipital region during active hallucinations. [najms.com]

Patient’s CT and MRI brain were normal, EEG showed generalized abnormal seizure activity without any focal epileptogenic foci. [jemds.com]

activity. [najms.com]

Uncinate Seizure

Etiology of seizures EEG:focal spike and slow wave activity; Imaging :initially normal and then show atrophy in the involved area ... [1pdf.net]

EEG at the beginning of seizure shows rhythmic theta activity in the left temporal area followed by high amplitude repetitive sharp waves. EEG; electroencephalogram. [jkna.org]

Temporal lobe seizures may occur in anyone at any age, as a single episode, or as a chronic seizure disorder. Diagnosis Abnormal electrical activity on EEG. [medical-dictionary.thefreedictionary.com]

Alcohol Withdrawal Seizures

EEG has registered brain electrical activity changes directly provoked from ethanol, such as slow rhythms during chronic intoxication; virtually a normalization of EEG after [pubs.sciepub.com]

activity to take place. [pubs.sciepub.com]

Electroencephalography (EEG) registrations did not support the suspicion that seizures were merely elicited from alcohol, in a condition of otherwise latent epilepsy. [pubs.sciepub.com]

Febrile Seizures

If the child's physical examination proves inconclusive, their convulsions fit the criteria for complex seizures and epilepsy is suspected, an electroencephalogram ( EEG ) [healthand.com]

The tests that may be recommended include: an electroencephalogram (EEG), which measures your child's electrical brain activity by placing electrodes on their scalp. [nhs.uk]

which is a test that checks for abnormal electrical activity in the brain, may be done for children who have certain symptoms or who have repeat seizures. [msdmanuals.com]

Tourette Syndrome

activity exists, an EEG may be ordered, or symptoms may indicate that an MRI is needed to rule out brain abnormalities.[29] TSH levels can be measured to rule out hypothyroidism [en.wikipedia.org]

activity, an EEG may be ordered. [en.wikipedia.org]

[…] other specified" or "unspecified" tic disorder.[19] Tests may be ordered as necessary to rule out other conditions: For example, when diagnostic confusion between tics and seizure [en.wikipedia.org]

Familial Progressive Myoclonic Epilepsy

Long seizures cause seconds of flaccid paralysis EEG: poly spike and wave or generalized spike and wave are associated with myoclonic jerks Focal Akinetic Seizure: Focal [neurodiffdx.com]

The EEG background activity fluctuates, depending on the number and duration of the clinical seizure events. [neupsykey.com]

43.  Blood tests- pancytopenia and an elevated serum acid phosphatase levels.  Low leukocyte b-glucocerebrosidase activity.  EEG - background slowing and bursts of predominantly [slideshare.net]

Atypical Absence Seizure

All seizures types are a result of abnormal electrical activity in the brain. To diagnose the condition, doctors will run a test called electroencephalogram (EEG). [globalgenes.org]

Eighteen patients had “generalized EEG seizure activity” during the status, but 2 of them were finally diagnosed as suffering from focal epilepsy. [hindawi.com]

The EEG checks the electrical activity in the brain for patterns usually seen in absence seizures. [epilepsy.com]

Focal Epilepsy - Speech Disorder - Mental Retardation

EEG of a 16-yr-old child with MR and tonic seizures, showing slow spike wave activity superimposed on a slow BG. 22. EEG of an 11-yr-old pt with LGS showing GPFA. 23. [slideshare.net]

When a seizure happens during an EEG, the normal pattern of brain activity that is seen on the EEG reading changes, and different brain activity can be seen. [epilepsysociety.org.uk]

EEG revealed sharp waves at bilateral centro-temporal regions superimposed on normal background activity. Her clinical seizures were transiently controlled by CBZ. [intechopen.com]

Neonatal Seizures

EEG seizures - abnormal EEG activity with no clinical correlation. 5. [slideshare.net]

(≥ 20 sec of rhythmic epileptiform electrical activity during an EEG but without any clinically visible seizure activity). [merckmanuals.com]

Evaluation in two of these infants documented an EEG pattern suggestive of seizure activity without discernible pathogenesis of their seizures. [ncbi.nlm.nih.gov]

Postictal State

[…] depth EEG spike activity, or insufficient antiepileptic medication. [thejns.org]

[…] diagnosis Unequivocal electrographic seizure activity in which there is a typical evolution of changes in the EEG recording with a build-up of rhythmic activity Periodical [lifeinthefastlane.com]

EEG An electroencephalogram is a recording of the electrical activity of the brain. EEG / video monitoring Seizure monitoring using simultaneous EEG and video recording. [cincinnatichildrens.org]

Acquired Epileptic Aphasia

[…] special form of partly reversible age-dependent epileptic encephalopathy, characterized by triad of symptoms: continuous prolonged epileptiform (spike-wave) activity on EEG [ingentaconnect.com]

Seizure activity typically resolves by teenage years, but speech is permanently lost. [docneuro.com]

EEG revealed sharp waves at bilateral centro-temporal regions superimposed on normal background activity. Her clinical seizures were transiently controlled by CBZ. [intechopen.com]

Benign Familial Neonatal Epilepsy Type 2

Abnormalities on an EEG test, measured during no seizure activity, can indicate a risk for seizures. However, infants with BFNS usually have normal EEG readings. [medlineplus.gov]

A test called an electroencephalogram (EEG) is used to measure the electrical activity of the brain. [medlineplus.gov]

Seizure episodes in infants with BFNS typically begin with tonic stiffness and pauses in breathing (apnea) followed by clonic jerking. [medlineplus.gov]

Developmental and Epileptic Encephalopathy Type 16

(3/6), and apparently generalized tonic or tonic-clonic seizures (2/6); b) normal background activity on EEG at the onset of epilepsy (6/6), with presence of focal or multifocal [research.unipd.it]

In the neonatal period (3/3), they presented a typical EEG pattern characterized by bursts of paroxysmal activity separated by episodes of flat or low amplitude tracing (3 [research.unipd.it]

mainly tonic (3/6) and spasms (5/6), that, along with the increased EEG paroxysmal activity, contributed to the neurodevelopmental stagnation or regression (6/6), configuring [research.unipd.it]

Developmental and Epileptic Encephalopathy Type 15

In the neonatal period (3/3), they presented a typical EEG pattern characterized by bursts of paroxysmal activity separated by episodes of flat or low amplitude tracing (3 [research.unipd.it]

mainly tonic (3/6) and spasms (5/6), that, along with the increased EEG paroxysmal activity, contributed to the neurodevelopmental stagnation or regression (6/6), configuring [research.unipd.it]

Jacksonian Seizure

This records electrical activity in the brain. EEG can show unusual electrical activity patterns. Different types of seizures can be identified with these patterns. [cedars-sinai.edu]

I completed a three day Video EEG of which no seizure activity was captured. [healthquestions.medhelp.org]

[…] is an electroencephalogram (EEG). [cedars-sinai.edu]

Developmental and Epileptic Encephalopathy Type 5

In the neonatal period (3/3), they presented a typical EEG pattern characterized by bursts of paroxysmal activity separated by episodes of flat or low amplitude tracing (3 [research.unipd.it]

mainly tonic (3/6) and spasms (5/6), that, along with the increased EEG paroxysmal activity, contributed to the neurodevelopmental stagnation or regression (6/6), configuring [research.unipd.it]

Autosomal Recessive Benign Familial Neonatal Epilepsy

Diagnosis of KCNQ2 Clinical tests and work-up evaluations EEG: One of the first steps in seizure assessment is to characterize the brain activity patterns associated with [europeankcnq2association.com]

Electrodes placed on the scalp collect and record electrical waves during periods of activity, sleep and seizures. [europeankcnq2association.com]

seizures. [europeankcnq2association.com]

Generalized Tonic-Clonic Seizure

In generalized seizure patients, the activation of photic stimulation and/or hyperventilation during an EEG may produce spikes or even seizures. [emedicine.medscape.com]

Sometimes the visible symptoms last longer than the seizure activity on an EEG. [epilepsy.com]

If you've had a seizure or are prone to seizures, your EEG may show one or more areas or of erratic electrical brain activity. [verywellhealth.com]

Benign Occipital Epilepsy

This type of epilepsy is characterized by focal seizures, meaning abnormal electrical brain activity occurs on only one side of the brain. [chp.edu]

Diagnosis Diagnosis involves a visit with an epilepsy doctor, a patient history, neurological exam, and other clinical tests, as well as neurodiagnostic testing such as EEG [chp.edu]