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West Haven hepatic encephalopathy criteria
| Grade | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| Features | Preserved consciousness, behavioural changes. | Drowsiness, disorientation, asterixis. Inappropriate behaviour. |
Marked confusion. Incoherent speech. Somnolescence. Rouses to voice. |
Comatose. Decerebrate or decorticate posturing. |
NB There is some overlap between grades; a neat, sequential passage through grades does not always accompany progression.
