Bilateral subclavian steal syndrome is a rare condition. It is usually due to reversal of vertebral blood flow in the setting of bilateral proximal subclavian or left subclavian plus innominate artery severe stenosis or occlusion. This finding may cause cerebral ischemia related to upper extremities exercise. We report a case of bilateral subclavian steal secondary to total occlusion of the inn...

BACKGROUND AND PURPOSE The purpose of this study was to describe typical ultrasonographic findings of vertebral arteries in patients affected by giant cell arteritis. METHODS Color duplex sonography was used to asses the cervical arteries within 24 hours from stroke onset in 1237 patients. Vertebral arteritis was considered if concentric, homogeneous, and smooth hypoechogenic mural thickening...

A 68-year-old woman presenting with progressive paraparesis was diagnosed with an AVF involving a previously fractured L1 vertebral body on which feeders from multiple segmental arteries converged. The most distinctive feature in our patient was that the fistula was located in the vertebral body. Transarterial embolization of the segmental arteries with coils and glue resulted in total oblitera...

1. When angiotensin was infused at low rates into the vertebral arteries of anaesthetized dogs, it raised the blood pressure. When infused at similar rates intravenously or into the internal carotid artery it either did not change blood pressure, or raised it only very slightly. The difference in response was highly significant over the range of 1-50 ng kg' min'. 2. During intravenous infusion ...

Spontaneous cervical arterial dissection (SCAD) is a non-traumatic tear or disruption in the wall of the internal carotid arteries or the vertebral arteries. It accounts for about 25% of strokes in patients aged under 45 years. Awareness of its clinical features and advances in imaging over the last two decades have contributed to earlier identification of this condition. SCAD has become the co...

Fibromuscular dysplasia is a non-inflammatory and non-atherosclerotic arteriopathy commonly affecting medium-size renal, carotid, and vertebral arteries. Involvement of the coronary artery is very rare but may cause life-threatening spontaneous dissection. Because it is rare, this disease may go unrecognized. A unique angiographic finding of non-coronary arteries can make an early diagnosis, an...

We report a case of retroesophageal right subclavian artery identified in a 59-year-old Japanese female during routine dissection in Nagasaki University School of Medicine. This kind of variation is relatively rare; however, reports of such cases have accumulated. We paid attention to the intersegmental arteries and above all, the second intercostal artery. On the other hand, there have been re...

1. Kaplan SS, Ogitvy CS, Gonzalez R, Gress D, Pile-Spellman J. Extracranial vertebral artery pseudoaneurysm presenting as subarachnoid hemorrhage. Stroke. 1993;24:1397-1399. 2. Saver JL, Easton JD, Hart RG. Dissections and trauma of cervicocerebral arteries. In: Barnett HJM, Mohr JP, Stein BM, Yatsu FM, eds. Stroke: Pathophysiology, Diagnosis, and Management. 2nd ed. New York, NY: Churchill Liv...