Proatlantal intersegmental artery with internal carotid artery stenosis

Intracranial internal carotid artery stenosis.

The advent of EC/IC Bypass surgery has focused attention on selected patients who might benefit from this innovative procedure. There is a poverty of natural history data pertaining to all such lesions. Two centres (Memphis, Tennessee and London, Ontario) pooled their resources to carry out a retrospective review of 58 patients with angiographically-proven intracranial internal carotid artery s...

Bilateral Internal Carotid Artery Stenosis

A72-year-old manpresented with paroxysmal and transient involuntary movements, or "limb shaking". The attacks occurred alternately from one side of the body to the other and ceased spontaneously. Surface EMG study showed synchronous grouping discharges in multiple limb muscles, being compatible with hemiballism-hemichorea. Cerebral angiography demonstrated marked stenosis of the bilateral inter...

Proatlantal intersegmental arteries of external carotid artery origin associated with Galen's vein malformation.

Carotid basilar anastomoses can occasionally persist beyond the embryonic period. These anomalies are most often incidentally detected in adulthood, during workups for unrelated pathologies. Persistence of the proatlantal intersegmental arteries is a rare form of primitive carotid-basilar anastomoses. Bilateral proatlantal inter- segmental arteries are an extremely rare occurrence, of which onl...

Internal carotid artery stenosis in patients with degenerative aortic stenosis.

BACKGROUND In patients with severe degenerative aortic stenosis (DAS) the operative mortality risk is 3% for isolated aortic valve replacement (AVR), but it significantly increases in patients with concomitant coronary artery disease (CAD) and internal carotid artery stenosis (ICAS). AIM To assess the frequency of ICAS > or = 50% and factors determining its occurrence in patients with severe ...

A Penetrating Pellet Jeopardizing Internal Carotid Artery