there is a graded system showing a progressive change in the ipsilateral vertebral artery waveform. Grade I lesions demonstrate antegrade flow with a diminished peak systolic velocity. Grade II ...

Currently, there is no consensus on the most effective medical therapy for posterior circulation ischemia. To date, there have been no randomized trials studying the use of different antiplatelet ...

Acute ischemic stroke (AIS) is the leading cause of adult disability in the United States and a major cause of death both ...

nuigalway.ie Background Balloon guide catheters (BGCs) achieve proximal flow control during thrombectomy but antegrade intracranial flow ... circulation as one would need to occlude both vertebral ...

"There is some microplastics in normal, healthy arteries," Dr ... fatty plaque that can build up in arteries, block blood flow, and cause strokes or heart attacks. Compared to the walls of ...

Coronary artery disease, CAD ... Coronary bypass surgery is one treatment option to help restore blood flow, when other surgical procedures may not be recommended. While coronary bypass surgery ...

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The semilunar valves stop the back flow of blood into the heart. There is a semilunar valve where the aorta leaves the left ventricle and another where the pulmonary artery leaves the right ventricle.

We report a case of a right vertebral artery dissection in a 35-year-old woman, 3 weeks post partum, with manifestations of vertebrobasilar disease. She was 3 weeks out from the uneventful delivery of ...