A Current Review of the Diagnostic and Treatment Strategies of Hepatic Encephalopathy

Table 2

West-Haven criteria for hepatic encephalopathy.

Stage	Consciousness	Intellect and behavior	Neurological findings
0	Normal	Normal	Normal examination; if impaired psychomotor testing, consider MHE
1	Mild lack of awareness	Shortened attention span	Impaired addition or subtraction; Mild asterixis or tremor
2	Lethargic	Disoriented; inappropriate behaviour	Obvious asterixis; slurred speech
3	Somnolent but arousable	Gross disorientation; bizarre behaviour	Muscular rigidity and clonus; hyperreflexia
4	Coma	Coma	Decerebrate posturing