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Laufs H - - 2004
Isolated ischemia of the cervical spinal cord is an uncommon but increasingly recognized complication of vertebral artery dissection (VAD). The authors report a young patient with congenital afibrinogenemia, who developed VAD with extensive unilateral spinal cord infarction, probably caused by local compression of spinal radicular feeders at their origin by ...
Thiel Haymo - - 2005
The combined extended and rotated cervical spine position has been postulated to affect vertebral artery blood flow by primarily causing a narrowing of the vessel lumen, usually within the artery contralateral to the side of head rotation. The production of brainstem symptoms during the manoeuvre has generally been considered to ...
Basekim C Cinar - - 2004
During color Doppler examination of a 41-year-old man who presented with vertigo, a right vertebral artery could not be found. Both MR angiography and digital subtraction angiography revealed a large anastomotic vessel between the right internal carotid and vertebral artery. It was thought to be type I proatlantal artery. Furthermore, ...
Ozgen Serdar - - 2004
OBJECT: The goal of this study was to demonstrate the origins, courses, anastomoses, and target tissues of the arterial branches that arise from the V2 segment of the vertebral artery. METHODS: Ten adult cadaveric necks (20 V2 segment specimens) were examined (magnification x 40) after injection of colored silicon. The ...
Yamazaki Masashi - - 2004
The authors report a case of a patient with Down syndrome in whom the abnormal course of the right vertebral artery (VA) at the craniovertebral junction (CVJ) was accurately demonstrated on three-dimensional (3D) computerized tomography (CT) angiography. The patient was a 5-year-old boy, who developed severe myelopathy. Bone abnormalities were ...
Bison E - - 2004
Vertebral artery dissection is one of the more frequent cerebral-vascular disorders in the young adult. The initial symptoms rarely consist of vertigo with clinical characteristics of Selective Monolateral Acute Vestibular Deficit Syndrome. The case is described of a patient, who arrived with intense rotatory vertigo associated with neurovegetative symptoms and ...
Gumus Terman - - 2004
Persistent proatlantal artery type 1 is one of the four anastomotic vessels between the carotid and vertebrobasilar arterial systems. Persistence of this embryonic anastomosis is extremely rare. We present such a case with bilateral persistent proatlantal arteries that arose from internal carotid arteries, entered the skull via the foramen magnum ...
Nakajima Norio - - 2004
BACKGROUND: A very rare case of a ruptured aneurysm induced by ethyl 2-cyanoacrylate is reported. CASE DESCRIPTION: Six years earlier, this 68-year-old woman had undergone microvascular decompression for trigeminal neuralgia during which the left vertebral artery, which compressed the exit zone of the trigeminal nerve, had been detached and fixed ...
Lee Hyung - - 2004
Cerebellar and medial medullary infarctions are well-known vertebrobasilar stroke syndromes. However, their development in a patient with distal vertebral artery occlusion has not been previously reported. A 49-year-old man with longstanding hypertension suddenly developed vertigo, right-sided Horner syndrome, and left-sided weakness. An MRI of the brain showed acute infarcts in ...
Caplan Louis R - - 2004
Among 407 New England Medical Center Posterior Circulation registry patients, 59% had strokes without transient ischemic attacks (TIAs), 24% had TIAs then strokes, and 16% had only TIAs. Embolism was the commonest stroke mechanism (40% of patients including 24% cardiac origin, 14% intraarterial, 2% cardiac and arterial sources). In 32% ...
Sebastian M M - - 2004
Fibrocartilaginous embolic myelopathy was diagnosed in a 11-year-old, male, Tennessee Walking Horse by histopathological examination of the spinal cord after the horse was killed because of severe neurological dysfunction. Both ventral funiculi of C6 and C7 cervical spinal cord had extensive necrosis with blood vessels containing fibrocartilaginous emboli. A similar ...
Conforto Adriana Bastos - - 2004
We report the case of a 36 year-old woman who presented occlusion of a basilar artery fusiform aneurysm (FA) associated with pontine infarction, and two episodes of subarachnoid hemorrhage possibly due to arterial dissection. She also had asymptomatic FAs in the right middle cerebral and left internal carotid arteries. Over ...
Tumialan Luis M - - 2004
STUDY DESIGN: A case report of a 60-year-old patient with rheumatoid arthritis who sustained injury of a tortuous vertebral artery after anterior cervical spinal fusion is reported. The literature relevant to this topic is reviewed. OBJECTIVE: To report the surgical injury of a tortuous vertebral artery resulting from rheumatoid arthritis ...
Hoh Brian L - - 2004
Embryologic development of the basilar artery occurs along two axis systems: longitudinal fusion and axial fusion. Longitudinal fusion consists of midline fusion of paired ventral arteries and reflects the simplified pattern of arterial anatomy found in the spinal cord. Axial fusion consists of fusion of the distal basilar artery, which ...
Pieniazek Piotr - - 2004
PURPOSE: To report the use of the Parodi Anti-Emboli System (PAES) for cerebral protection during emergent vertebral artery recanalization. CASE REPORT: A 56-year-old chimney sweep was referred with recurrent episodes of vertigo and gait ataxia. Left vertebral artery (LVA) flow was barely detectable on duplex Doppler, and brain computed tomography ...
Harrer Judith U - - 2004
OBJECTIVE: The aim of the study was to assess the potential of 3-dimensional (3D) color-coded duplex sonography (CDS) for evaluation of the vertebral artery origin and stenoses in this location. METHODS: To compare 2-dimensional (2D) and 3D CDS, both techniques were performed in 25 healthy volunteers and in 18 patients ...
Acharya Rajesh - - 2004
This anatomic study evaluated the extent that a fronto-orbital osteotomy (FOO) added to a bilateral frontal craniotomy widened the exposure to the midline compartment of the anterior, middle, and posterior cranial fossae. The goal was to determine if osteotomy would significantly increase angles for two targets: the foramen magnum (FM) ...
Garg Ajay - - 2004
STUDY DESIGN: A case report of rheumatoid arthritis involving cervical spine, who presented with multiple posterior circulation infarcts, and pertinent literature review are presented. OBJECTIVE: To describe a rare positional occlusion/stasis of vertebral arteries, which resolved following application of cervical traction. The likely mechanism of above findings is proposed. SUMMARY ...
Nambu Koshi - - 2004
STUDY DESIGN: The effect of ligation of the bilateral segmental arteries at the levels of T11, T12, and T13 on blood flow of the T12 vertebra was studied in a dog model. OBJECTIVES: To determine the reduction of the vertebral blood flow resulting from interruption of bilateral segmental arteries at ...
Kanda Masaru - - 2004
A 48-year-old woman with a 29-year history of pulseless disease presented with subarachnoid hemorrhage caused by a rare ruptured intracranial aneurysm of the right vertebral-posterior inferior cerebellar artery. The aneurysm was successfully clipped. Pulseless disease is a chronic and nonspecific vasculitis involving mainly the aorta and its main branches such ...
Mitchell J A - - 2004
Vasoconstriction of the vertebral artery may be neurogenic in origin. Although the existence of a perivascular sympathetic plexus of the vertebral artery is not in doubt, no method used to date has conclusively demonstrated a direct sympathetic innervation of the vascular smooth muscle cells and, hence, vasomotor function. It was ...
Schlegel Daniel - - 2004
A 36-year-old man without significant past medical history presented with recurrent explosive headache at the time of orgasm. Magnetic resonance angiography showed focal mid-basilar artery narrowing. Despite receiving no specific therapy, the patient's headaches and vascular narrowing had resolved completely on follow-up six months later. While a number of pharmacologic ...
Laredo J D - - 2004
Complications due to vertebroplasty may be divided into two categories whether or not they are related to polymethylmethacrylate (PMMA) cement leakage from the compressed vertebral body. PMMA leakage is a very frequent occurrence in vertebroplasty is also the main source of complications. Neurological complications are due to cement leakage into ...
Nedeltchev K - - 2004
Intra-arterial thrombolysis (IAT) is the only treatment that has demonstrated benefit in patients with acute basilar artery occlusions (ABAO). IAT may be difficult to perform when access to the occluded basilar artery (BA) is prevented by pathology of the vertebral arteries (VA). We report on two patients with ABAO due ...
Cacciola Francesco - - 2004
BACKGROUND: Ten randomly selected adult cadaveric specimens were dissected to analyse the anatomy of the vertebral artery during its course from the C3 transverse process to its entry into the spinal dural canal at the level of C1. In addition, 10 dry cadaveric C1-C2 bones were studied. The course of ...
Miyazaki Takeshi - - 2004
OBJECTIVE AND IMPORTANCE: We are sometimes involved in the care of patients with neurofibromatosis Type 1 because of the associated disorders of cervicocerebral vessels. However, extracranial vertebral artery aneurysm in neurofibromatosis Type 1 is very rare. We present the first reported case of a rupture of an extracranial vertebral artery ...
Nishikata Manabu - - 2004
Elongation and bending of the basilar artery are frequently observed in both normal and pathological subjects. However, their mechanism of generation remain unclear. In the present study, we measured basilar arteries in patients and normal subjects using magnetic resonance angiography (MRA) and estimated the relationships between these anatomical changes and ...
Yu Nicholas R - - 2004
Vertebral artery dissections (VAD) are known to occur as a result of mechanical manipulations of the cervical region, traumatic injury, iatrogenic injury and are also known to arise spontaneously. We report a case of vertebral artery dissection following vertebral artery cannulation during a central line placement and review the literature. ...
Fazan Valéria Paula Sassoli - - 2004
The vertebral artery is usually described as the first branch of the subclavian artery, originating medial to the scalenus anterior muscle. During its cervical course, the vertebral artery presents a prevertebral segment and then enters the foramen transversarium of the sixth cervical vertebra. We describe a case of an unusual ...
Yanik Bahar - - 2004
Anomalous origin of the right vertebral artery from the right common carotid artery occurs rarely. To the best of our knowledge, the medical literature contains no information about gray-scale and Doppler sonography findings in this anomaly, despite the extensive information available from angiographic studies and postmortem examinations. We present the ...
Lee Chang Hee - - 2004
OBJECTIVE: This study evaluated the anatomic significance and sites of aortic bifurcation, right renal artery, and conus medullaris when locating lumbar vertebral segments on MRI. SUBJECTS AND METHODS. The study group was composed of 210 patients who underwent MRI of the lumbosacral spine. The position of aortic bifurcation was evaluated ...
Mahadevan J - - 2004
We report a case of symptomatic symmetrical, bilateral absence of the cavernous internal carotid (ICA) and transdural vertebral artery (VA) segments with formation of a rete mirabile. There have been similar reports in Asian patients; ours is the first in the Western population. A 29- year-old woman presented with recurrent ...
Islam S - - 2004
The present study investigated the ultrastructural features of the basilar artery of the largest rodent species, the capybara. The study suggests that the general ultrastructural morphological organization of the basilar artery of the capybara is similar to that of small rodents. However, there are some exceptions. The basilar artery of ...
Mercado R - - 2004
INTRODUCTION: The foramen of Vicq d'Azyr, is a triangular-shaped area located rostral to the ventral median fissure of the medulla oblongata. Its importance relies on the fact that it is penetrated by small vessels from the vertebrobasilar axis that nourish vital pontine nuclei and tracts. We described the microvascular anatomy ...
Mitchell J A - - 2004
Blood flow to the hindbrain, via the paired vertebral arteries, must be uncompromised for adequate neurological functioning of its vital centres. Therefore, it would seem unlikely that the intracranial vertebral artery would need to vasoconstrict, thus reducing its blood flow. In order to investigate the existence and location of a ...
Omahen David A - - 2004
OBJECTIVE AND IMPORTANCE: Fusiform aneurysms of the vertebrobasilar arteries that progressively enlarge causing symptomatic brainstem compression are dangerous and their treatment is difficult. A patient with such an aneurysm treated successfully with staged, microsurgical occlusions of the proximal vertebral arteries is described, and the literature pertaining to this rare condition ...
Rajesh R - - 2004
We report the case of a young man with anterior inferior cerebellar artery infarct causing unilateral deafness. Clinical features and audiometry suggested cochlear localization for deafness. MRI brain showed an infarct in the right AICA territory with involvement of pons. Involvement of the internal auditory artery explains the cochlear deafness.
Biglioli Paolo - - 2004
OBJECTIVE: Thoracic and thoracoabdominal aortic repair are still complicated by spinal cord ischemia and paraplegia. The aim of the present article is to present the results of an anatomical study conducted by means of both postmortem injection of the vertebral artery and perfusion of the abdominal aorta. METHODS: The spinal ...
Karimi Morvarid - - 2004
BACKGROUND: Neurologic deficits in patients with Klippel-Feil syndrome usually are attributed to direct compression of neuronal structures or hypoperfusion secondary to compression of the vertebral arteries by bony abnormalities. OBJECTIVE: To describe a 38-year-old woman with known Klippel-Feil syndrome who developed lateropulsion. RESULTS: The results of magnetic resonance imaging were ...
Kurokawa Yasutaka - - 2004
BACKGROUND: Microvascular decompression for the treatment of trigeminal neuralgia and hemifacial spasm (HFS) has been established and has brought about excellent results. However, recurrence or lack of relief from the symptoms was experienced in some cases in which the nerve root or root exit zone were compressed by the vertebral ...
Kobayashi S S Department of Neurosurgery, Chiba Emergency Medical Center, Chiba; - - 2004
Ruptured vertebral artery dissecting aneurysms (VADA) re-bleed frequently especially during first 24 hours, which makes the prognosis of the patients with this disease poor. Recently endovascular trapping with detachable platinum coils at an acute stage has been done for preventing re-bleeding. However, for the cases with dissecting aneurysm involving the ...
Hallerstam Staffan - - 2004
In the present prospective study colour duplex ultrasound was used to investigate the vertebral arteries in 117 patients referred for carotid duplex examination. The study aimed to identify flow abnormalities and factors influencing blood flow haemodynamics by calculating the resistance index (RI) in the vertebral and common carotid arteries. Vertebral ...
Fukuda Masafumi - - 2004
We describe a 52-year-old woman who experienced transient motor weakness and numbness of the left extremities and presented 2 days later with severe hemiparesis and sensory impairment of the right extremities and right lingual palsy. Magnetic resonance imaging (MRI) revealed bilateral upper medial medullary infarction, primarily in the left ventral ...
Welsh Louis W - - 2004
The authors used magnetic resonance angiography to examine the intracranial and cervical vascular structures of individuals who suffer from drop attacks. Normal structural configurations of the circle of Willis and the vertebrobasilar arterial system were compared to the vascular patterns of 10 subjects with these episodic tonic or atonic attacks. ...
Leibowitz Rebecca T - - 2004
The objective was to report examples of degeneration of the costovertebral articulation producing a pulmonary pseudolesion. Three cases in which a nodular opacity seen on plain radiograph was determined to be secondary to degeneration of the costovertebral articulation were compiled, one of which was confirmed by CT. Pseudolesions produced by ...
Kameda W - - 2004
BACKGROUND AND PURPOSE: No large-scale study has ever compared the clinical and radiological features of lateral medullary infarction (LMI) and medial medullary infarction (MMI). The aim of this study was to investigate them through the use of cooperatively collected cases. METHODS: Medical information on all patients from 1996 to 2000 ...
Forutan H - - 2004
BACKGROUND: There are only a few descriptions in the literature of thoraco-abdominal aortic aneurysms responsible for erosion of the vertebral column and compression of the spinal cord. This case is therefore presented to provide an opportunity to discuss the pathomechanic aspects and to demonstrate the feasibility of total surgical repair ...
Khaw Alexander V - - 2004
We sought to investigate the potential benefit in examining extracranial vertebral arteries (ExVA) with an echo contrast agent. A total of 26 patients with insufficiently assessable ExVA underwent extracranial duplex sonography without and with an echo contrast medium. All examinations were recorded and analysed independently by two experienced sonographers. Interrater ...
Vinces Fausto Y - - 2004
Ipsilateral vertebral artery injuries are a rare entity following trauma to the neck. We discuss the first case of an isolated right vertebral artery injury in a patient with a left stab wound. The patient required bilateral neck explorations and, due to massive bleeding, a median sternotomy in order to ...
Marinković Slobodan - - 2004
BACKGROUND: There is limited data in the literature related to the microanatomic features of the perforating branches of the vertebral artery. METHODS: The 44 vertebral arteries and their branches were injected with india ink or a radiopaque substance and examined under the stereoscopic microscope. RESULTS: The perforating arteries were noted ...
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