Hypertensive intracerebral hemorrhage

1. What percentage of strokes are hemorrhagic?
2. What is the usual underlying cause of intracerebral hemorrhage?
3. What are the symptoms of new hemorrhage?
4. What are the common sites of hemorrhage? What is the most common?
5. What are the symptoms of hemorrhage into the putamen?

Answers:
1. 15%
2. Chronic HTN.
3. Sudden onset HA, LOC, vomiting, seizures (10%), nuchal rigidity. Preceded by "false aneurysms" that are arterial wall dilations 2/2 HTN.
4. Putamen (most common), thalamus, pons, cerebellum, lobar.
5. Hemiplegia (2/2 compression of adjacent internal capsule), vomiting, HA, eyes deviating away from paretic limbs. May progress to coma in hours.