Background. Degenerative changes of the vertebral-motor segment occupy an important place among causes cervicogenic headache, neck pain with radiation to shoulder and arm, noise in head, dizziness. The same symptoms are often found vertebral artery syndrome, which is a set disorders vertebral-basilar dynamics. Dopplerography makes it possible obtain quantitative parameters blood flow arteries, ...

BACKGROUND Intracranial arteries in the subarachnoid space may compress the brain parenchyma and cranial nerves. Most arterial compressive lesions have been attributed to dolichoectasia in the vertebral-basilar system, and prior reports have concentrated on the pressure effects of basilar artery ectasia. Much less is known about vertebral artery compression of the medulla. OBJECTIVE To descri...

Vertebrobasilar insufficiency leading to posterior circulation infarcts caused by congenital hypoplasia of the bilateral transverse foramina at the C2 level, affecting the caliber and flow of the bilateral distal cervical vertebral arteries in an adult, has not been previously reported. A 41-year-old male presented with episodic dizziness for a period of 1 year prior to consultation. Computed t...

Traumatic vertebral arteriovenous fistulae (AVFs) are relatively uncommon lesions that often follow penetrating wounds of the neck or iatrogenic arterial trauma [1-7]. Such posttraumatic single-hole fistulae differ from congenital arteriovenous malformations, which are composed of multiple communications between the cervical arteries and an abnormal vascular nidus [8] . True single-hole vertebr...

BACKGROUND AND PURPOSE The segmental arteries, which include the posterior intercostal, subcostal, and lumbar arteries, are gateways for performance of selective spinal arteriography of the thoracolumbar level. We performed a cadaveric study to clarify the anatomic relationship between the origins of the segmental arteries in the aorta and the vertebral column. METHODS Five adult cadaveric ao...

BACKGROUND AND PURPOSE Stroke rates in patients with symptomatic intracranial stenosis may be as high as 10% to 24% per year on medical therapy. This multicenter, nonrandomized, prospective feasibility study evaluated the NEUROLINK System for treatment of vertebral or intracranial artery stenosis. METHODS Patients were 18 to 80 years old with symptoms attributed to a single target lesion of >...

Compromise of blood flow in the vertebral arteries associated with head rotation is generally considered an uncommon cause of vertebrobasilar insufficiency. It can occur at virtually any level of the cervical spine. We present two cases of transient total occlusion of the left vertebral artery at the atlantoaxial joint during head rotation to the right. In one case, the contralateral vertebral ...

The currently advocated pre-manipulative risk assessment protocols include the use of provocative positional tests to challenge the integrity of the vascular supply to the brain. This paper examines the validity of these pre-manipulative provocative tests in light of recent studies involving ultrasound scanning of the vertebral arteries in subjects who also had provocative tests performed. Thes...

Reports on the management of chainsaw penetrating laryngotracheal injuries are limited. These can be catastrophic because possible injury to carotid and vertebral arteries or neural aerodigestive tract injury. A systemic multidisciplinary approach is necessary when faced with this type We present a 59-year-old carpenter an accidental, self-inflicted, that afflicted anterior neck, larynx posteri...

The purpose of this study was to analyze the suitability of the cerebral vasculature of the pig regarding a revascularization procedure. In two 60 kg pigs the femoral artery was exposed and canulated for selective angiography and interventional procedures. After the angiography, the pigs were brought to the animal OR for craniotomy and analysis of the intracranial cerebral arteries and the surg...