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Neonatal EEG 1
| Question | Answer |
|---|---|
| The electrodes that are typically left off for neonatal EEG | Fp1/Fp2, F7/F8, T5/T6, F3/F4, P3/P4 |
| Special electrodes that are included for neonatal EEG | Fp3, Fp4, Fz, Cz, Pz |
| __ and __ are electrodes used in neonates between Fp1 and Fp3, and Fp2/F4 | Fp3, Fp4 |
| Fp3 is an electrode situated between standard 10-20 electrodes __ and __ | Fp1, F3 |
| Additional channels often used in neonatal EEG | respiratory, EOG, EKG, EMG |
| Electrode impedence should be less than __ Ohms (__ kOhms) for neonatal EEG | 5000, 5 |
| Suck artifact is often most common in the __ electrodes | temporal |
| Frontal cerebral activity should be __ (in/out) of phase in the eye channels; eye movements should be __ (in/out) of phase in the eye channels | in, out |
| EKG artifact in neonates is most common in the __ electrodes | temporal |
| Pulse artifact is most prominent in the __ electrodes | Cz |
| Cardiac recoil most often results in artifact in the __ electrodes | occipital |
| The earliest EGA at which behavior can be used to determine sleep vs. wakefulness is ~ __ weeks | 24 |
| In __ sleep in an infant, the infant's eyes are closed but there are a variety of large and small body movements; brief apneas are relatively common | active |
| Newborn infants __ (always/ frequently/rarely/never) enter active sleep from wakefulness | frequently |
| In infants in __ sleep, the eyes are closed and there are few movements; apnea is uncommon | quiet |
| Apnea is more common during __ sleep | active |
| An infant's EEG is most vulnerable to adverse neurologic events during __ sleep | quiet |
| Much of the EEG is spent in __ sleep, which is neither active nor quiet | indeterminate |
| The earliest vestiges of EEG activity appear at week __ EGA | 8 |
| The discontinuity of a neonatal EEG is quantified by the __ __ | interburst interval |
| Neonatal EEGs that display a relatively steady amplitude are termed __ | continuous |
| Neonatal EEGs that alternate between high amplitude "on" periods and low amplitude "off" periods are termed __ (not burst-suppression) | discontinuous |
| The median IBI at 24 weeks is __ seconds | 10 |
| Prolonged IBIs have been associated with __ and __ | hyperammonemia (in citrullinemia), hypoxia |
| The two components of symmetry assessed in neonatal EEGs | amplitude, waveform composition |
| __ in neonates is defined as bursts of morphological similar EEG activity in homologous head regions separated by more than 1.5 to 2.0 seconds in time | asynchrony |
| __ is a phenomenon whereby bursts of activity arise in the two hemispheres at the same time in neonates; it is seen before EGA __ weeks | hypersynchrony, 30 |
| About __% of bursts of activity during quiet sleep are synchronous at age 31-32 week EGA; __%35-36% and __% after 37 weeks | 70, 85, 100 |
| For a 24-29 week EGA, the EEG __ (does/does not appear distinctly different during sleep and wakefulness | does not |
| For the EEG of a 24-29 week EGA infant, the EEG __ (does/does not) demonstrate reactivity | does not |
| The EEG of an otherwise healthy 24-29 week EGA neonate shows __ (no/some/constant) continuity | no |
| The bursts of a 24 - 29 week EGA neonate show __ (asynchrony/hypersynchrony/synchrony) in 100% of patients | hypersynchrony |
| The typical interburst interval in 24-29 week EGA neonates | 6-12 seconds |
| The typical interburst amplitude in 24 - 29 week EGA neonates | < 2 microvolts |
| The bursts of activity for a 24-29 week EGA neonate show most activity in these regions | temporal occiptial |
| The EEG for a neonate at 30-34 EGA __ (does/down not) appear the same in active sleep, quiet sleep and wakefulness | does not |
| In a 30-34 week EGA neonate, the EEG appears more discontinuous during this state | quiet sleep |
| Discontinuous patterns of quiet sleep (as seen in 30-36 week EGA neonates) are known as this | trace discontinu |
| The EEG of a 30-34 EGA neonate __ (does/does not) demonstrate reactivity | does |
| Delta brush in neonates aged 30-34 EGA is seen more commonly in this state of sleep | active sleep |
| Bursts are synchronized in ~ __-__% of EGA 30-34 week neonates | 70-80 |
| The interburst interval is ~ __-__ seconds in EGA 30-34 week neonates | 5, 8 |
| The amplitude of the interburst interval is __ in EGA 30-34 neonates | < 25 microvolts |
| Bursts in EGA 30-34 week neonates have more prominent rhythmic activity in the __ regions | temporal, occipital |
Created by:
schmittse
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