What Causes Cerebrovascular Accident CVA

Cerebrovascular insufficiency

Synonym: cerebrovascular insufficiency (abbr .: CVI)
English: cerebrovasvcular insufficiency

1 definition

Under the term of cerebrovascular insufficiency one understands the inability (insufficiency) of the vessels supplying the brain (vas) to adequately supply the brain (cerebrum) with blood.

In a broader sense, it also subsumes the reversible and irreversible sequelae of vascular-related cerebral (temporary) reduced blood flow, starting from recurrent or chronic cognitive deficits and dizziness up to acute neurological deficits (TIA, PRIND, PRINS, ischemic insult).

2 etiology

The causes are stenosing angiopathies (mostly arteriosclerosis, more rarely vasculitides and other vascular diseases) of the extra- (especially internal carotid artery) and / or intracranial arteries supplying the brain.

3 stages

In terms of symptoms, cerebrovascular insufficiency can be divided into four stages.

  • Stage I.: Asymptomatic stenoses
  • Stage II: Temporary ischemia with reversible symptoms
    • Stage IIa: TIA (regression after one hour)
    • Stage IIb: Minor Stroke (regression within a week)
  • Stage III: Progressive ischemia with only partially reversible deficits
  • Stage IV: Complete heart attack with permanent failures

see also:Carotid stenosis, cerebral artery sclerosis