West Haven Hepatic Encephalopathy Grade 1

**Semantic type:** Finding

**Definition:** Mild - symptoms or pathological characteristics include trivial lack of awareness, shortened attention span, impaired ability to perform addition or subtraction, hypersomnia, insomnia, or inversion of sleep pattern, euphoria, depression or irritability, mild confusion, slowing of ability to perform mental tasks. (Adapted from: Hepatic Encephalopathy. David C Wolf. http://emedicine.medscape.com/article/186101-overview.)

**Synonyms:** - GRADE 1