BACKGROUND Reopening of an occluded internal carotid artery (ICA) is often seen in dissections but only rarely occurs in atherothrombotic occlusion of the internal carotid artery. CASE DESCRIPTION A 60-year-old man suffered a minor stroke with dysphasia in March 1995. Color-coded duplex ultrasonography of his neck arteries revealed a left ICA occlusion. He was placed on a regimen of aspirin a...

In patients with high-grade atherosclerotic stenosis or occlusion of the extracranial cerebral arteries, subarachnoid hemorrhage (SAH) may occur, potentially due to rupture of fragile dilated pial collateral vessels. This association has been well described in Moyamoya disease. There are only few cases in the literature that reported SAH due to bilateral carotid artery stenosis but intraventric...

PURPOSE To define the role of angiography and embolization in the treatment of patients who have arterial injuries during transsphenoidal surgery. METHODS We retrospectively studied the arterial hemorrhagic complications, their management, and the clinical outcomes that occurred in 21 of the more than 1800 patients who had transsphenoidal surgery for pituitary adenomas. RESULTS Of the 21 pa...

The purpose of this study was to examine the role of carotid sinus and cardiopulmonary mechanoreceptors in the reflex control of adrenal medullary catecholamine secretion. Afferent input from carotid sinus and cardiopulmonary mechanoreceptors was decreased by carotid occlusion or cervical vagal cold block, respectively. Increases in arterial pressure were significantly greater when either inter...

Carotid T occlusion (intracranial carotid bifurcation occlusion with involvement of A1 and M1 segments) is associated with poor outcome. In most cases, treatment with intraarterial thrombolysis within a 6-hour window has been unsuccessful. We describe the case of a 26-year-old woman who presented with severe neurologic deficits (National Institutes of Health Stroke Scale score of 23) secondary ...

BACKGROUND AND PURPOSE Vertebral artery origin stenosis prevalence. Most data on the prevalence of vertebral artery origin (VAo) disease is derived from hospital-based studies of patients with posterior circulation strokes and TIA. The prevalence of VAo disease in patients without posterior circulation symptoms or asymptomatic patients is poorly characterized. Our objective was to examine the p...

ATHEROSCLEROTIC INTERNAL carotid artery occlusion (AICAO) causes approximately 10% of transient ischemic attacks (TIAs) and 15% to 25% of ischemic strokes in the carotid territory. The 2-year risk of subsequent ipsilateral ischemic stroke while a patient receives medical therapy is 10% to 15%. Extracranial-intracranial (EC-IC) arterial bypass surgery was developed to prevent subsequent stroke b...

OBJECTIVE The purpose of this study was to evaluate the effectiveness of contrast-enhanced ultrasound with a second-generation contrast agent in distinguishing between occlusion and pseudo-occlusion of the cervical internal carotid artery, comparing it with that of conventional Doppler ultrasound and the gold standard, computed tomography angiography. METHOD Between June 2006 and June 2012, w...

PURPOSE To describe the technique of using SPECT brain blood flow imaging to identify patients at risk for having strokes after balloon or surgical ligation of an internal carotid artery. PATIENTS AND METHODS 29 patients underwent temporary balloon occlusion of the internal carotid artery and blood flow imaging studies were obtained prior to sacrifice of the vessel; 11 internal carotid arteri...