Danmeter CSM 2, Руководство пользователя

Страница: 19 / 39

Cerebral State Monitor - CSM DFU Page 15
5.3
CSI Scale
The CSI is a unit-less scale from 0 to 100, where 0 indicates a flat EEG and 100 indicates EEG
activity corresponding to the awake state. The range of adequate anesthesia is designed to be
between 40 and 60. All values in the table are approximate values based on the mean values of the
patient behaviour.
The relationship among the CSI, the clinical state and the OAAS
1
score is shown in the table below
CSI Clinical State OAAS
90 – 100 Awake 5
80 – 90 Drowsy 4
60 – 80 Light anesthesia or sedation 3
40 – 60
Range considered as adequate for
surgical anesthesia
2-1
10 – 40
Deep anesthesia, in most cases
accompanied by burst suppression
1
0 – 10
Close to coma, BS (burst suppression)
larger than 75. When CSI is below 3,
the EEG is practically iso-electric.
<1
The prediction probability (Pk) between the CSI and the OAAS was 0.92
The OAAS score correspond to:
OAAS Clinical State
5 Responds readily to name spoken in normal tone
4 Lethargic response to name spoken in normal tone
3 Responds only after name called loudly and/or repeatedly
2 Does not respond to mild prodding or shaking
1 Does not respond to noxious stimulus
1
Observers Assessment of Alertness and Sedation