№ 72Neurology13 min read
Classification of cerebrovascular diseases
1. Big picture
Cerebrovascular diseases are disorders of the brain caused by abnormal blood supply or abnormal bleeding from cerebral vessels. In exam language, the central idea is simple:
Sudden focal neurological deficit = vascular disease until proven otherwise.
The first and most important classification is:
| Main group | Meaning | Key examples |
|---|---|---|
| Ischemic cerebrovascular disease | Reduced blood flow causes brain ischemia or infarction | Transient ischemic attack, ischemic stroke, lacunar infarct |
| Hemorrhagic cerebrovascular disease | Vessel rupture causes bleeding into or around the brain | Intracerebral hemorrhage, subarachnoid hemor |
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