EEG Abnormal Waveforms - StatPearls - NCBI Bookshelf
2023年5月1日 · Abnormal waveforms seen on an electroencephalogram (EEG) recording include epileptiform and non-epileptiform abnormalities. In order to identify abnormal waveforms indicative of disease on an EEG, the reader should have a basic understanding of the normal EEG pattern in various physiological states in children and adults.
normal variants - Learning EEG
Among 14 & 6 positive spikes, 6 Hz positive spikes have two variants: WHAM (waking, high amplitude, anterior, male), which is associated with epilepsy, and FOLD (female, occipital, low amplitude, drowsy), which is not.
What if my EEG is abnormal? - NeuLine Health
If my EEG results come back abnormal, then what? The EEG is one piece of the puzzle that neurologists, psychiatrists or other members of your health care team will use to evaluate your symptoms. An abnormal EEG may occur because of: Alcohol or drug abuse; Bleeding in the brain (hemorrhage) Brain swelling Dementia; Epilepsy or other seizure ...
Benign Variants in the EEG - Electroencephalography (EEG): An ...
The range of benign variants includes wicket waves, rhythmic mid-temporal theta of drowsiness (RMTD or RTTD), benign small sharp spikes (BSSS, sometimes denoted BSST for benign small sleep transients), 14 and 6 positive spikes, 6-Hz “phantom” spike and wave, subclinical rhythmic EEG discharge of adults (SREDA), and the midline theta rhythm ...
EEG and pitfalls in children: Benign variants and how they can …
Determination of the clinical significance of focal or generalized spikes or epileptiform discharges may also be a source of confusion and a potential pitfall. Therefore, a sound understanding of the EEG as a whole – one that includes normal age-specific findings, normal variants and abnormal epileptiform and non-epileptiform discharges are ...
Understanding Your EEG Results | Normal & Abnormal EEGs
2020年8月3日 · Abnormal EEG results can show up in two ways. First, normal brain activity may be suddenly interrupted and changed. This happens in epileptic seizures. In partial seizures, only part of the brain shows the sudden interruption. The whole brain shows it in generalized seizures.
The Abnormal EEG - Electroencephalography (EEG): An …
Focal slow wave activity on the EEG is indicative of focal cerebral pathology of the underlying brain region. Slowing may be intermittent or persistent, with more persistent or consistently slower activity generally indicating more severe underlying focal cerebral dysfunction. A variety of etiologies for focal cerebral dysfunction may be seen.
EEG Spikes During Sleep: Causes, Implications, and ... - Neurolaunch
2024年8月26日 · EEG spikes are brief, sharp waveforms that stand out from the background electrical activity of the brain. These spikes typically last for less than a second and can occur in isolation or as part of more complex patterns. While some EEG spikes are considered normal and harmless, others may indicate underlying neurological issues.
DOES NOT MEAN THE PATIENT IS ACTUALLY SEIZING DURING THE EEG! The duration of the abnormal wave is 70 microvolts or less. Stands out from the background. On Bipolar Montage, needs to have phase reversa l to b e real . Per Guru Dr. Shah, “If it looks like you would sit on it and it would hurt, it’s probably a spike”. Stands out from background. 2.
Normal variants and artifacts: Importance in EEG interpretation
For the EEG to have a high diagnostic value and high specificity, it is critical to recognize waveforms that can be mistaken for abnormal patterns. This article describes artifacts, normal rhythms, and normal patterns that are prone to being misinterpreted as abnormal. Artifacts are potentials generated outside the brain.