Vertebral artery insufficiency

MONDO:0001631

A syndrome which occurs as a result of the occlusion of one of the vertebral arteries. It may be caused by atherosclerosis, embolism or hemorrhage. Collateral circulation through the circle of Willis is usually comprised as well. Clinical signs may include vertigo, nystagmus, dysarthria, ataxia and sensorimotor deficits. Clinical course may lead to persistence of neurologic deficits. Prognosis is variable with a substantial risk for recurrent infarction.

Also known as: vertebral artery syndrome

43 clinical trials for this condition and its sub-types, 2 tagged with Vertebral artery insufficiency itself.

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Where it sits in the disease tree

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↑ Syndromic disease (7133) ↑ Arterial disorder (5313) ↑ Vascular insufficiency disorder (244) ↑ Transient ischemic attack (127)

Including sub-types (43) Tagged with Vertebral artery insufficiency (2)

Trials to join now! 1 Completed 1

Stent or pills? trial tests best way to stop strokes from narrowed neck arteries

Prevention Recruiting now

The VISTA trial compares two approaches for people who have had a stroke or mini-stroke caused by severe narrowing of an artery in the neck that supplies the back of the brain. Participants are randomly assigned to receive either a drug-eluting stent plus blood thinners or blood …

Sponsor: Xuanwu Hospital, Beijing • Aim: Prevention

Last updated Sep 12, 2026 00:00 UTC

Vertebral artery insufficiency

Where it sits in the disease tree

Stent or pills? trial tests best way to stop strokes from narrowed neck arteries