introduction: vertebral arteries arise from the root of the neck as the first branches from the superior-posterior aspect of the subclavian arteries. they ascend the neck to enter the cranial cavity and supply blood to the brain. methods: a total of 20 cadavers (in 10 years) were dissected for the study of variations in the origin of the vertebral artery. this study was conducted in isfahan uni...

Introduction: Vertebral arteries arise from the root of the neck as the first branches from the superior-posterior aspect of the subclavian arteries. They ascend the neck to enter the cranial cavity and supply blood to the brain. Methods: A total of 20 cadavers (in 10 years) were dissected for the study of variations in the origin of the vertebral artery. This study was conducte...

abstract symptomatic basilar artery stenosis has a poor prognosis. surgical bypasses are technically demanding and of no proven benefit. a new generation of intravascular stents that are flexible enough to navigate the tortuosities of the vertebral artery may provide a new therapeutic approach. our two cases, 57 and 52 year-old men experienced a vertebrobasilar ischemia with repeated vertigo an...

neurological manifestation may complicate takayasu arteritis (ta). a 23-year-old girl with sudden onset of vision loss was admitted to hospital. her brain mri showed abnormal t2-signal hyperintensity and visual evoked potential revealed prolonged p100 latency. consequently, optic neuritis was diagnosed. a review on history of dizziness, falling, and weak pulses of upper extremities led to more ...

BACKGROUND Considering the role of aging in brain atrophy and cerebral vascular demand, we carried out this study to clarify the role of aging in duplex indices of vertebral arteries. METHODS From June 2005 to June 2006, 96 volunteers with age range of 20 to 95 years, were evaluated with color doppler for duplex indices of vertebral arteries. Sever hemodynamic stenosis was excluded in all of ...

acute paraplegia is a rare but catastrophic complication of surgeries performed on aorta and corrective operations of vertebral column. trauma to spinal cord after spinal anesthesia and ischemia of spinal cord also may lead to acute paraplegia. acute paraplegia as a complication of general anesthesia in surgeries performed on sites other than aorta and vertebral column is very rare. here we pre...

BACKGROUND AND PURPOSE The purpose of this study was to determine whether significant atherosclerotic disease in the carotid arteries predicts significant atherosclerotic disease in the coronary arteries, vertebral arteries, or aorta in patients with symptoms of acute ischemic stroke. METHODS Atherosclerotic disease was imaged using CT angiography in a prospective study of 120 consecutive pat...