Search Results
Results 301 - 350 of 1561
< 2 3 4 5 6 7 8 9 10 11 12 >
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 ...
Saito Kazuyuki - - 2009
We present an extremely rare autopsy case with traumatic dissection of the extracranial vertebral artery due to blunt injury caused by a traffic accident. The patient complained of nausea and numbness of the hands at the scene of the accident. His consciousness deteriorated and he fell into a coma within ...
Takeuchi Satoru - - 2009
A 62-year-old man presented with right upper homonymous quadrihemianopsia. Magnetic resonance imaging showed hemorrhagic infarctions in the bilateral occipital lobes and infarction in the left cerebellar hemisphere. Digital subtraction angiography and three-dimensional computed tomography angiography revealed right vertebral artery (VA) stenosis caused by an osteophyte at the C5 superior articular ...
Chiam Paul T L - - 2009
Basilar artery angioplasty with or without stenting is an emerging and promising treatment for vertebrobasilar insufficiency that is refractory to medical therapy. The usual approach is via a transfemoral route, with access directly through the vertebral artery (VA). An approach from the anterior circulation via the posterior communicating artery has ...
Kulcsar Zsolt - - 2009
OBJECTIVE: To present a patient with a cervico-thoracic ventrally located epidural hematoma caused by dissection and subsequent bleeding of the cervical portion of the vertebral artery. SUMMARY AND BACKGROUND DATA: Non traumatic epidural hematoma is a rare entity. The etiology usually is not clarified: a venous origin is usually suspected ...
Rusu M C - - 2009
The aim of the present study was to anatomically evaluate in adults the neurovascular trigeminal relations in the cerebellopontine angle (CPA), from a morphological and topographical perspective and thus to improve, detail and debate the pre-existing information, with educational and surgical implications. For the present anatomical study we performed bilateral ...
Lee Chun-Yi - - 2009
The central nervous system's involvement is the most common reported extra-pulmonary manifestations of Mycoplasma pneumoniae infection, and stroke was one of the most special situations. We presented a 4-year-old child who presented with acute stroke on the third day of the onset of Mycoplasma respiratory tract infection. Brain magnetic resonance ...
Sharifi Mansoor - - 2009
Cerebellopontine angle and vascular supply of adjacent brainstem and cerebellum are susceptible to compression and eventual damage by tumors. Delicate and complicated neurosurgical operations in the cerebellopontine angles of the brainstem, where lateral recesses of fourth ventricle empty, are abundant especially operations in which foramina of Luschka are used as ...
Devin Clinton J - - 2009
Vertebral artery injuries during cervical spine surgery are rare, with a reported incidence of 0.3% to 0.5%. The vertebral artery enters the vertebral foramen most commonly at C6 and courses from anterior and lateral to medial and posterior with respect to the vertebral body up to C3. The vertebral artery ...
Miller Saul - - 2009
Vertebral artery dissection has become increasingly recognized as an important cause of stroke. It usually presents with posterior headache or neck pain followed within hours or days by signs of posterior circulation stroke. To the best of our knowledge, the clinical presentation of a Brown-Séquard syndrome with a vertebral artery ...
Hyodoh Hideki - - 2009
PURPOSE: We evaluated the efficacy of magnetic resonance angiography (MRA) for detecting the artery of Adamkiewicz (AKA) and the vertebral level of its feeding arteries branching from the aorta. MATERIALS AND METHODS: Eighty-two patients (67 men, 15 women; aged 34 to 86 years, mean age 68.6 years) with thoracic descending ...
Nemati Masoud - - 2009
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. From June 2005 to June 2006, 96 volunteers with age range of 20 to 95 years, were evaluated with color doppler ...
O'Hare A A Department of Neuroradiology, Beaumont Hospital, Dublin; Ireland - - - 2008
During interventional procedures the tortuosity of the vasculature hampers catheter stability. The buddy wire may be used to aid and maintain vascular access.We describe a case of acute subarachnoid haemorrhage secondary to dissecting aneurysm of the vertebral artery.We discuss the value of the buddy wire during balloon occlusion of the ...
Yeom Jin S - - 2008
STUDY DESIGN: Prospective consecutive case series. OBJECTIVE: To identify the incidence of undetected vertebral artery groove and foramen violations and arterial injuries during placement of C1 lateral mass and C2 pedicle screws. SUMMARY OF BACKGROUND DATA: Although insertion of C1 lateral mass and C2 pedicle screws has become increasingly common, ...
Higashi Nobuaki - - 2008
The present report describes an anomalous case of the right vertebral artery arising as the last branch of the aortic arch identified in a 76-year-old Japanese male cadaver during dissection in the anatomical laboratory of Kanazawa Medical University. The aortic arch itself coursed normally but the right vertebral artery was ...
Kawate Toyoko - - 2008
Reported herein is a rare case of multiple vascular anomalies involving the vertebral vessels and the bronchial artery. In the present case the vertebral artery, which normally originates from the subclavian artery, arose directly from the cranial side of the aortic arch, just between the left common carotid and subclavian ...
< 2 3 4 5 6 7 8 9 10 11 12 >