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Results 301 - 350 of 1576
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Stavrinou Lampis C - - 2010
Background. Aneurysms of the extracranial vertebral artery are rare and can provide a diagnostic and therapeutic challenge. Methods. We reviewed the clinical history of a patient presenting with cervical radiculopathy, who harboured an extracranial vertebral artery aneurysm eroding the cervical spine. Results. CT Angiography and MR Angiography set the diagnosis, ...
Matti Albert I - - 2010
To describe a rare presentation of vertebral artery dissection (VAD) as a small but congruous incomplete homonymous hemianopia demonstrating use of visual field testing in the diagnosis. A 30 year old woman had been unwell for 4 months with difficulty focusing, vertigo, dizziness and a feeling of falling to the ...
Ciappetta P - - 2009
Aneurysms arising from the extracranial portion of the posterior-inferior cerebellar artery (PICA) are considered extremely rare. To date, only ten cases have been reported in the literature. The authors report a case of a 29 year-old male patient admitted comatose in Hunt-Hess grade IV because of an subarachnoid haemorrhage predominantly ...
Jozwik Krzysztof - - 2010
Vertebral arteries are two arteries whose structure and location in human body result in development of special flow conditions. For some of the arteries, one can observe a significant difference between flow rates in the left and the right arteries during ultrasonography diagnosis. Usually the reason of such a difference ...
Jin Y J - - 2010
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 ...
Okumura Akihisa - - 2009
We report on a patient with brainstem disconnection associated with periventricular nodular heterotopia and bilateral proatlantal intersegmental arteries. The patient was a girl born after 37 weeks of gestation with birth weight of 1,938 g. Polyhydroamnios and lack of swallowing movement were noted on fetal ultrasonography. No spontaneous body movement ...
Hua Yang - - 2009
OBJECTIVE: The sonographic diagnostic criteria for vertebral artery stenosis have not been fully investigated. The purpose of this study was to assess hemodynamic parameters at color Doppler imaging and to determine, with digital subtraction angiography as the reference standard, the optimal thresholds for evaluation of proximal vertebral artery stenosis. MATERIALS ...
Kendi A T K - - 2009
Duplication of vertebral artery is a very rare finding. Here, we present a case of vertebral artery duplication, cervical vertebral artery aneurysm and multiple intracranial aneurysms in a 59-year-old woman. This is the first case of vertebral artery duplication with cervical vertebral artery and intracranial aneurysms.
Wang Yan - - 2009
OBJECTIVE: The purpose of this study was to assess the value of sonographic examination of congenital variations of the extracranial vertebral artery associated with posterior circulation ischemia in children. METHODS: Sonography was performed on the vertebral arteries of 82 patients aged 2.5 to 14 years with a history of headache, ...
Kim Dae-Won - - 2009
Dual origin and fenestration of the vertebral artery (VA) are very rare anomalies. Understanding of these variations, however, is important because they can be misdiagnosed as a VA dissection. A 42-year-old woman presented with motor weakness and sensory disturbance of the right upper extremity. Radiologic evaluations showed ectatic change in ...
Terayama Ryuji - - 2011
We observed a rare case of the right persistent hypoglossal artery (PHA) in the posterior cranial fossa of a deceased 74-year-old Japanese man who did not have any clinical manifestations related to this anomaly when alive. The large-sized PHA originating from the cervical internal carotid artery passed through the hypoglossal ...
Pascual-Castroviejo Ignacio - - 2010
The association of persistent embryonic arteries and the absence of 1 carotid or vertebral arteries with facial or neck hemangioma or vascular malformation have been frequently described. The abnormalities can involve major or minor vessels. Of 22 patients of our series with this neurocutaneous syndrome, 20 had the origin of ...
Bentley Matthew T - - 2009
Blood vessel and nerve development in the vertebrate embryo possess certain similarities in pattern and molecular guidance cues. To study the specific influence of shared guidance molecules on nervous and vascular development, an understanding of the normal neurovascular anatomy must be in place. The present study documents the pattern of ...
Uzun Gunalp - - 2009
Reported here is a 37-yr-old professional diving instructor who had developed complaints of back pain and weakness in the lower extremities after diving. He was eventually diagnosed as having spinal cord decompression sickness along with a likely diagnosis of anterior spinal artery (artery of Adamkiewicz) syndrome. Additionally, since the transthoracic ...
Huntoon Marc A - - 2010
Stellate ganglion block (SGB) is commonly performed for upper extremity complex regional pain syndrome and other conditions. Known complications of stellate block include Horner's syndrome, hoarseness, hematoma formation, airway compromise, immediate seizure (presumably from vertebral artery injection), and death. A previous arterial anatomy study demonstrated other vessels, eg, the ascending ...
Oran Ismail - - 2009
PURPOSE: Most intracranial dissecting aneurysms involve the posterior circulation, and the intradural segment of the vertebral artery is affected in majority of these. The aim of this report is to summarize the results of endovascular treatment in patients with ruptured dissecting aneurysms of the non-vertebral posterior circulation. MATERIALS AND METHODS: ...
Samdani Amer F - - 2009
The etiologies of torticollis are numerous. We describe a unique patient who presented with torticollis with head tilting to the right after sustaining a minor fall. Computed tomography scan with two and three-dimensional reconstructions revealed an underlying hypoplasia of the right lateral mass of C1 and occipital condyle. Further study ...
Lu Daniel C - - 2009
Surgical decompression of the vertebral artery (VA) between the suboccipital area and C-1 is typically performed via a large midline incision or a far-lateral approach. Such traditional open approaches are often associated with significant muscle dissection and blood loss. In this case, a 12-year-old boy suffered a stroke related to ...
Wanibuchi Masahiko - - 2009
PURPOSE: The exposure of the third segment of the extracranial vertebral artery (V3) is an important step in the extreme lateral inferior transcondylar-transtubercular exposure (ELITE) approach. The muscular suboccipital triangle provides one of the landmarks to identify the V3 segment; however, identification of this triangle and dissection of the V3 ...
Dabrowski Rafa?? - - 2009
BACKGROUND: Electrocardiographic abnormalities and clinical symptoms are used as indications for cardiac pacing. Syncope, faints and other neurological symptoms are of multi-factorial origin and are due to reduced brain perfusion. AIM: To examine the carotid and vertebral artery blood flow and to assess whether stenosis of these arteries is associated ...
Kim J-T - - 2009
The hypoglossal artery arises as a branch of the internal carotid artery and traverses the hypoglossal canal. However, the hypoglossal artery arising from the external carotid artery (ECA) and connecting directly with the posterior inferior cerebellar artery (PICA), instead of the basilar artery or the vertebral artery, is very rare. ...
Sugiu K - - 2009
INTRODUCTION: Bow hunter's syndrome is a unique clinical entity caused by mechanical occlusion of the vertebral artery on head rotation. Although it is usually treated by direct surgical intervention, we report successful treatment using endovascular stent placement for contralateral vertebral artery stenosis. CASE DESCRIPTION: A 56-year-old man presented with repeated ...
Natello Gregory W - - 2009
We describe a patient with rotational vertebrobasilar ischemia (RVBI) due to vertebral artery (VA) compressive stenoses during neck rotation, complicated by an ostial atherosclerotic stenosis (OAS). Referred for 'near-syncopal spells', inquiry revealed a symptom-complex consistent with vertebrobasilar transient ischemic attacks (TIAs) provoked by head rotation. VA dynamic angiography with imaging ...
Yamakawa Haruki - - 2009
Retrograde flow through the anterior spinal artery (ASA) from the cervical vertebral artery (VA) to the intracranial distal VA due to disrupted perfusion caused by bilateral VA occlusion is rare. We report two cases of hemodynamic vertebrobasilar circulatory insufficiency caused by bilateral VA occlusion. In these patients, the ASA filled ...
Shi S S Department of Neurology, Southwest Hospital, Third Military Medical University, Chongqing 400038, China - - - 2009
A 36-year-old man presented a sudden left occipital headache and right limb weakness after tooth-brushing. Conventional catheter digital subtraction angiography (DSA) showed a left VA occlusion at the crotch of the posterior inferior cerebellar artery. Four days later, the patient got worse. The angiogram showed the left vertebral artery had ...
Muralimohan S - - 2009
OBJECTIVE: To study the course, relationships, branches and possible anomalies of the vertebral artery in the suboccipital region in adult Indian cadavers. MATERIALS AND METHODS: Twenty-one suboccipital segment vertebral artery specimens from embalmed, Indian adult cadavers were dissected and studied. Dissection was performed using microsurgical instruments and was carried out ...
Clarençon Frédéric - - 2009
Basilar artery occlusion is a dramatic clinical event with a high mortality rate if patients are treated by standard medical therapy, including anticoagulation agents. The use of intravenous tissue plasminogen activator or intraarterial thrombolysis recanalizes 30-53 and 64%, respectively, of patients with basilar stroke. Mechanical endovascular treatments allow tailored procedures ...
Tubbs R Shane - - 2009
OBJECT: The vertebral artery (VA) and its branches may be encountered during various neurosurgical procedures such as far lateral suboccipital approaches to the skull base and spinal operations. Therefore, a working knowledge of the distribution and significance of such VA branches may be advantageous to the surgeon. To date, quantitation ...
Calabrò Rocco Salvatore - - 2009
We report the case of a patient with vertebrobasilar steno-occlusive pathology associated with ischemic brainstem symptomatic lesions related to abnormal decrease in blood pressure (BP). A 63-year-old man presented vertigo and persistent gait impairment as a result of a posterior cerebellar infarction and, during hospitalization, experienced a new episode of ...
Takeuchi Satoru - - 2009
Dolichoectasia is an angiopathy characterized by dilatation, elongation, and tortuosity of the brain arteries. It most frequently involves the vertebral and basilar arteries; involvement of both the vertebrobasilar and carotid systems is rare. We present a patient with fatal dolichoectasia involving both the vertebrobasilar and carotid artery systems.
Bailey Marc A - - 2009
Atypical origins of the vertebral artery (VA) are rare anatomical findings. We present an extremely rare arrangement of the cerebral circulation in a 61-year-old male patient detected on magnetic resonance angiography, where the right VA arose as a direct branch of the cervical internal carotid artery (ICA). This likely reflects ...
Ho Harvey - - 2010
OBJECTIVE: The aim of this work is to establish a computational pipeline for the simulation of blood flow in vasculatures and apply this pipeline to endovascular interventional scenarios, e.g. angioplasty in vertebral arteries. METHODS: A patient-specific supra-aortal vasculature is digitized from a 3D CT angiography image. By coupling a reduced ...
Ishizawa Akimitsu - - 2010
In the course of a cadaveric dissection in 2006, an upside-down stomach esophageal hiatal hernia was observed in a 91-year-old Japanese woman with kyphosis who had died of brain infarction. There are 31 clinical reports of upside-down stomach esophageal hiatal hernia, but the vascular system was not analyzed in any ...
Chuang Yu-Ming - - 2009
Congenital vertebral artery hypoplasia (VAH) is an uncommon embryonic variation of the posterior circulation. The clinical relevance and hemodynamic impact of VAH have been under debate. We tried to localize the topographic domain of vertebral artery hypoplasia with vestibular evoked myogenic potential (VEMP) studies. From January 2005 to October 2005, ...
Blagg Stuart E - - 2009
STUDY DESIGN: Anatomic study of C1 osteology using computerized tomography. OBJECTIVES: To define the anatomy of the C1 lateral mass and make recommendations for optimal entry point and screw placement at C1. SUMMARY OF BACKGROUND DATA: C1 lateral mass screw fixation is a reliable biomechanical technique that gives equivalent stability ...
Lee Carol K - - 2009
Traumatic vertebral artery injury is frequently fatal from what may often be mild trauma to the head and neck. Detailed examination of vertebral arteries is not frequently undertaken at autopsy: the structural and histologic changes that may be relevant to the development of the injury are not well known. We ...
Pascual-Castroviejo I - - 2009
Conventional arteriography in an 11-month-old boy with cardiopathy, aortic arch coarctation and haemangiomas showed the absence of the right internal carotid and vertebral arteries, hypertrophy of the right external carotid artery, with enlargement of the internal maxillary and ophthalmic arteries that supplied the right cerebral hemisphere. An MRI study showed ...
Sharifi Mansoor - - 2010
Posterior inferior cerebellar artery (PICA) is one of the cerebellar arteries which originates from the vertebral artery and has the most complex and variable course. It usually originates from the vertebral artery intracranially and as a single trunk; however, absent, double trunk, extracranial, and extradural PICA may exists although very ...
Lee Seung Hwan - - 2009
Double origin of the posterior inferior cerebellar artery (PICA) is an infrequent developmental anomaly predisposing an individual to intracranial aneurysm formation. Fenestration of the PICA is extremely rare, and furthermore, fenestration of the double origin of the PICA in association with an intracranial aneurysm is unique. We present the first ...
Ciappetta Pasquale - - 2009
OBJECTIVE: To evaluate structural variations of the jugular tubercles (JTs) and their relationships with the vertebral artery, the posterior inferior cerebellar artery (PICA), and the vertebrobasilar junction (VBJ). METHODS: The depth, height, and width of the JTs were measured using 30 cadaveric basicranial specimens and 50 three-dimensional angiography computed tomographic ...
Yin Way - - 2009
INTRODUCTION: Transforaminal injection of steroids has been associated with infrequent but devastating neurological complications and death. Direct injection of particulate steroids into the vertebral artery or medullary arteries is the leading theory in the majority of these complications. Practice guidelines have been published to minimize the likelihood of directly encountering ...
Kocaeli Hasan H Department of Neurosurgery, University of Cincinnati College of Medicine, Cincinnati, - - 2009
To define the natural history of spontaneous intracranial vertebral artery dissections (VADs) and to review current treatment strategies. We searched the MEDLINE database for all existing English and French literature on VADs through January 2008. Keywords employed were intradural/intracranial vertebral artery dissection, vertebral artery dissection, and vertebral artery dissection treatment. ...
Kiresi Demet - - 2009
A potential hazard in midline posterior fossa craniectomy may be the injury of vertebral artery. That's why vertebral artery evaluation prior to surgery may prevent dangerous complications. Advancements in multidetector computed tomography (MDCT) have provided detailed demonstration of the vertebral artery at the craniocervical junction and its relationships with atlas ...
Wakugawa Yoko - - 2009
We examined whether the time-averaged maximum velocity (TAMV), flow volume (FV) or cross-sectional area (CA) in the vertebral arteries (VA) as determined by ultrasonography was related to vascular lesions or variations in the intracranial part of the posterior circulation. Three hundred nine patients without severe stenosis in the carotid circulation ...
Yamasaki Shigeru - - 2009
We experienced suicidal hanging cases without a ligature in front of the neck. We conducted several anatomical autopsies and the magnetic resonance imaging (MRI), and studied the dynamics behind hanging by applying an apparatus to cadaver and creating a dummy. MRI revealed that the vertebral artery protrudes diagonally upward from ...
Starke Robert M - - 2009
OBJECTIVE: Patients with partial or complete bilateral vertebral artery occlusion often present with signs and symptoms of transient ischemic attacks or infarction. Advances in phase contrast magnetic resonance imaging have led to noninvasive assessment of volumetric blood flow rates and direction that help in the workup and management of these ...
Brinjikji Waleed - - 2009
Lateral C1-C2 puncture is associated with a number of complications including damage of aberrant posterior inferior cerebellar arteries (PICA). We propose to determine the frequency of cases in which the PICA originates or descends below C1, thus posing a risk to the patient undergoing lateral C1-C2 puncture. Two hundred and ...
Kilic Harun - - 2009
Atherosclerotic disease of the vertebro/basilar vessels is an important cause of posterior circulation infarction. Commonly, the primary atheroma forms at the origin of the vertebral arteries. Although initial treatment is medical, arch and four-vessel studies (CTA, MRA, or DSA) are warranted if symptoms continue. Endovascular management of vertebral artery stenosis ...
Lv X X "2007JL39, Basic and Clinical Research, Capital Medical University", Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University; Beijing, China - - - 2009
We describe the first documented endovascular treatment of vertebral dissecting aneurysm using a Wingspan stent and detachable coils. A 54-year-old man presented with a nonruptured vertebral dissecting aneurysm. Because of the dissecting nature of the vertebral aneurysms, a 3x15-mm Wingspan stent was placed in the left vertebral artery. One month ...
Eskander M S - - 2009
A case report of a 58-year-old man who sustained a laceration of his left vertebral artery during a routine corpectomy for cervical myelopathy is reported. To report iatrogenic injury of a tortuous vertebral artery during anterior cervical spine surgery and discuss appropriate diagnosis and treatment options for this complication. UMass ...
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