Neupsy Key

Interictal epileptiform discharges (IEDs) associated with epilepsy Print Section Listen ▪ With clinical correlation, the high sensitivity and the specificity of IEDs for seizure disorders support the use of IEDs…

Abnormalities of alpha rhythm, photic response, and mu rhythm Print Section Listen (Figure 4-1 to 4-25 and 4-28) Figure 4-1. Posterior Slow Wave of Youth. EEG of an 11-year old…

Alpha rhythm or posterior dominant rhythm Print Section Listen (Figures 1-1 to 1-5, 1-11, and 1-16) Figure 1-1. Normal Alpha Rhythm and Squeak Effect. An alpha rhythm appears immediately after…

General principle Print Section Listen ▪ The EEG is unable to distinguish between different etiologies. The major usage of the EEG is to determine the severity of encephalopathy, prognosis, and…

Characteristics of artifact Print Section Listen ▪ If the activity is limited to a single channel or electrode, it should be assumed to be an artifact until proven otherwise. ▪…

Severe neonatal epilepsy with suppression-burst pattern Print Section Listen (Figures 7-1 to 7-6) Figure 7-1. Severe Neonatal Epilepsy with Suppression-Burst Pattern (Early Epileptic Encephalopathy); Erratic Myoclonus. A 5-day-old boy born…

Antiepileptic drug (AED)-induced seizure worsening Print Section Listen (Figure 8-1) Figure 8-1. Carbamazepine-Induced Myoclonic Seizure. A 3-year-old boy with a history of GTCS who developed frequent myoclonic jerks and drop…

Tracé discontinu Print Section Listen (Figures 3-1 to 3-3 and 3-7) Figure 3-1. Tracé Discontinu. EEG of a 27-week CA infant with severe HIE. Tracé discontinu (TD) is the earliest…

EEG pattern of encephalopathy Print Section Listen Nonspecific patterns ▪ Alpha rhythm slowing → theta slowing → delta slowing → loss of alpha rhythm → loss of normal faster activity…