Sleep Scoring In Children

Question 1

State age related findings.

1: What occurs at 2-3 months?
2: What occurs at 4-6 months?
3: when can n1-n3 be scored?
4: non-EEG events can help differentiate sleep in infants 6 months or younger what are these?

Answer 1

1:Sleep spindles
2:k complexes and slow wave activity(>=75uV, 0.5-2Hz)
3:5-6 months or older
4: Rem- chin EMG atonia, irregular respirations, Rem and transient muscle activity
NRem- cEmg tone, regular respirations, and no rare vertical eye movements

Question 2

What are posterior slow waves of youth?

What age do they occur?

Answer 2

Intermittent runs of bilateral but often asymmetric 2.5-4.5 Hz slow wave riding on PDR, are usually

Question 3

What is random or semi-rhythmic occipital slowing?

Normal at what age?
And prominent in what age range?
What happens with increasing age?

Question 4

What are occipital sharp waves with eye blinks?

Answer 4

Single monophasic or biphasic

Question 5

Reading eye movement in children are what over the O1-2

How long do they last?

What is frequency?

Answer 5

Usually surface -VE. Highest amp & sharpest component
Lasts 150-250msecs
Amp 65uV

Question 6

What is posterior dominant rhythm?

What are they in adults?

Answer 6

Amplitude

Question 7

What is posterior dominant rhythm in infants less than three-4 months?

3 to 4 months?

5 to 6 months up to 12 months?
Three years?
Nine years?
15 years?

Answer 7

1: Only slow irregular potential changes.
2: 75% have irregular 50-100 µV, 35 to 45 Hz which is reactive with eye-opening and appears with passive eye closure.
3: 50 to 110 µV with 5 to 6 Hz activity. By 12 months 70% of normal children have this.
4: 82% > 8hz with a range of 7.5 9.5 Hz.
5: 65% mean Alpha frequency of 9hz.
6: 65% mean Alpha frequency of 10hz

Question 8

What is average amplitude of PDR in children.

Answer 8

50 to 60 Microvolts.

9% greater than 100uV. Primarily between 6 to 9 years of age.

Children rarely have alpha activity of less than 30uV

Question 9

Pediatric Sleep scoring rules apply to children?

Answer 9

2 months post term or older

Question 10

What are some of the signals seen in n1?

Answer 10

Slow I movements usually lasting greated than 500 msec
Low amplitude mixed frequency activity predominantly 4 to 7hz
Vertex sharp waves less than five seconds maximal over the central region and distinguishable from the background activity.
Rhythmic anterior Theta activity- runs of 5 to 7 Hz Maximal over the frontal or frontocentral scalp regions.
Hypnagogic hypersynchrony . Paroxysmal bursts or runs of diffuse high amplitude sinusoidal 75 to 350 µV 3 to 4.5 hz waves which begin abruptly and maximal Over the central, frontal or frontocentral scalp regions.

Question 11

Scoring of n1 with PDR ?

Without PDR ?

Answer 11

If the PD is attenuated or replaced by low-amplitude mixed frequency activity for more than 50% of the Epoch

Commence with the earliest of any of the following phenomena
Activity in the range of a 4-7 Hz with slowing of background frequencies by