Search Results
Results 301 - 350 of 1533
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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 - - 2009
Summary: 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 ...
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 - - 2008
Summary: 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 ...
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 ...
Campos-Herrera Cynthia Resende - - 2008
Spontaneous cervical arterial dissection (SCAD) is a non-traumatic tear or disruption in the wall of the internal carotid arteries or the vertebral arteries. It accounts for about 25% of strokes in patients aged under 45 years. Awareness of its clinical features and advances in imaging over the last two decades ...
Kimura Hidehito - - 2008
Fibromuscular dysplasia (FMD) is a noninflammatory and nonatheromatous arteriopathy that commonly affects the renal and cervical internal carotid arteries and sometimes the vertebral arteries (VAs). The association of FMD with intracranial aneurysms is widely known. The authors describe a rare case of FMD presenting with subarachnoid hemorrhage due to the ...
Choi Seok-Keun - - 2008
Hemifacial spasm induced by intracranial aneurysm is a rare clinical condition. A 45-year-old male patient presented with a 3-year history of progressive involuntary twitching movement on right face. On radiological study, a dilated vascular lesion compressing the brain stem was found at the junction of vertebral artery and posterior inferior ...
Nebelsieck J - - 2009
The reported sensitivity of neurovascular ultrasound (nUS) for detecting spontaneous cervical artery dissection (sCAD) varies from 80% to 96% in the internal carotid artery (ICA) and from 70% to 86% in the vertebral arteries (VA). The aim of this study was to assess the sensitivity of nUS compared to MRI ...
Kaiser Ch - - 2008
The reason for blunt forces against the head to rupture the basal brain arteries has been discussed in forensic and trauma research. However, well-documented case reports demonstrating the mechanism of injury, the clinical course and the forensic work up are rare. We present the case of a 40-year-old man, who ...
Winston Chong W K - - 2008
Summary: Treatment and prognosis of 14 patients of posterior fossa arterial dissections (AD) and dissecting aneurysms (DA) in one institution was reviewed. Internal trapping of aneurysm was performed for six patients presenting with SAH (three Vertebral, one posterior cerebral, one posterior inferior cerebellar, one anterior inferior cerebellar DA). The patency ...
Bozgeyik Zulkif - - 2008
OBJECTIVE: To investigate the effects of sildenafil citrate (Viagra) on the vertebral artery blood flow of patients with vertebro-basilar insufficiency (VBI) using color duplex sonography (CDS). MATERIALS AND METHODS: The study included 21 patients with VBI (aged 31-76; mean 61.0 +/- 10.5 yrs). We administered a 50 mg oral dose ...
Saito Kozue - - 2010
Rotational vertebral artery (VA) occlusion can cause ischemic strokes due to hemodynamic insufficiency and possibly artery-to-artery (A-to-A) embolism. The former is known as bow hunter's stroke. The latter has been proposed only from indirect evidence. We have described a 7-year-old boy with cerebral infarction associated with A-to-A embolism due to ...
Vokina T A - - 2008
A variety of clinical manifestations of vertebrobasilar insufficiency in virtually the same anatomical disorders of the vertebral arteries indicates the multilevel regulation of the cerebral bloodflow aimed at its stabilization and maintenance. The main arteries of the head and peripheral arteries were studied by Doppler ultrasonography in patients with anatomical ...
Park Jong-Ho - - 2008
An anterior inferior cerebellar artery (AICA) stroke is characterized by vertigo, tinnitus, and deafness in addition to facial weakness, hemiataxia, and hypalgesia. Sometimes, it can present as sudden deafness with vertigo, without brainstem or cerebellar signs. We report a 55-year-old woman with hypertension and diabetes, showing recurrent audiovestibular disturbance before ...
Lakchayapakorn Kajorn - - 2008
OBJECTIVE: To determine the position of the aortic bifurcation and the iliocava junction in relation to the lumbar vertebra, aortic bifurcation angle, interiliac angle, and anatomical variation of the iliac veins anterior to the lumbar vertebra of Thai people. MATERIAL AND METHOD: The present study was done on 65 cadavers. ...
Chung J I - - 2008
Summary: Plexiform vascular networks of the rete mirabile in humans are rare but can be observed in some vertebrates such as cobaye, cat, cow and sheep. Each set of embryonic arteries can be a potential source of these vascular networks which reconstitute the distal flows in segmental agenesis of internal ...
Guerri-Guttenberg Roberto Andrés - - 2009
During a routine dissection of the head and neck regions, a right persistent hypoglossal artery was found in a male individual who had died at approximately 40 years of age. This variation is associated with hypoplasia of the right and left vertebral arteries and absence of the right posterior communicating ...
Surchev N - - 2008
The close relationships between the cranial nerves and the arterial vessels in the posterior cranial fossa are one of the predisposing factors for artery-nerve compression. The aim of this study was to examine the relationships of the vertebral and basilar arteries to some skull and dural structures and the nerves ...
Ikegaya Hiroshi - - 2008
We report a case of subarachnoid hemorrhage at the skull base with possible rupture of a vertebral artery, and we present a new method to investigate rupture of this artery. In this method, the brain stem and cerebrum are divided with ligation of the internal carotid artery and basilar artery, ...
Jickling Glen - - 2008
A 21-year-old woman presented to the emergency department 1 day after a fall. On the day of presentation, she awoke with horizontal diplopia and posterior neck pain. Based on clinical findings, she was diagnosed with bilateral internuclear ophthalmoplegia. A conventional angiogram identified a left vertebral artery dissection. She was started ...
Kansagra Akash P - - 2008
PURPOSE: To demonstrate the use of a noninvasive arterial spin labeling (ASL) MRI technique and evaluate vertebral artery (VA) territories in the brain. MATERIALS AND METHODS: Vessel-encoded ASL was used to determine the territories of the left and right VAs in five healthy subjects. Territory maps were analyzed quantitatively by ...
Kim Joo Pyung - - 2008
Hemifacial spasm (HFS) is considered as a reversible pathophysiological condition mainly induced by continuous vascular compression of the facial nerve root exit zone (REZ) at the cerebellopontine angle. As an offending vessel, vertebrobasilar artery tends to compress much more heavily than others. The authors analyzed HFS caused by vertebrobasilar artery ...
Park Kwan-Woong - - 2008
When a tear occurs in one of the major cervicocerebral arteries and allows blood to enter the wall of the artery and split its layers, the result is either stenosis or aneurysmal dilatation of the vessel. Vertebral artery dissection (VAD) is an infrequent occurrence but is a leading cause of ...
Kim J - - 2008
BACKGROUND AND PURPOSE: The tuberothalamic artery (TTA), one of the arteries supplying the paramedian thalamic area, is peculiar because it originates from the posterior communicating artery (p-comA), which connects the vertebrobasilar and carotid systems. METHODS: From Stroke Registry, 23 consecutive patients with an acute infarction involving the TTA were selected. ...
Harper Carl - - 2008
Reversal of flow in the extracranial vertebral artery secondary to a proximal subclavian/innominate artery stenosis or occlusion is a frequent finding during carotid duplex ultrasonography. The characteristics of basilar artery flow are not well defined in these patients. The objective of this study is to evaluate basilar artery flow in ...
Ducluzeau P-H - - 2008
AIM: To demonstrate that ultrasound screening of diabetic patients presenting with no cerebrovascular symptoms for evaluation of atheroma of the cervical arteries can be limited to the carotid arteries. METHODS: We retrospectively analyzed the results of cervical artery ultrasound imaging of diabetic patients with no cerebrovascular symptoms. This diabetic population ...
Bayrak Ilkay Koray - - 2009
The aim in this study was to evaluate the effect of cervical spondylosis on vertebral arterial flow. The flow changes on Doppler measurements in patients with vertigo were also assessed. Ninety-one patients with different grades of degeneration on disks and apophysis were evaluated. The severity of degeneration was determined by ...
Koch Sebastian - - 2009
BACKGROUND: Despite remaining an important cause of posterior circulation stroke, the non-invasive diagnosis of vertebral artery origin (VAo) stenosis is problematic. We here examine peak systolic velocity (PSV) criteria for the diagnosis of VAo stenosis and assess if the PSV ratio at the origin to the distal segments improves diagnostic ...
Tubbs R S - - 2008
Variations in the cerebrovascular tree can increase surgical or interventional morbidity. To date, only scant comments are to be found in the literature regarding intraluminal variations of the basilar artery. To further elucidate such anatomy, a cadaveric study was performed. One hundred and fifty human brains were evaluated for the ...
Bhogal Ricky Harminder - - 2008
INTRODUCTION: Mycotic aneurysm of the aorta is a rare, dangerous condition. We report a case of an abdominal aortic aneurysm (AAA) caused by Candida albicans. METHODS: Case report and review of pertinent English-language literature. CASE REPORT: A 48 year-old man presented with an acute exacerbation of long-standing back pain. Examination ...
Hiwatashi Akio - - 2008
Glossopharyngeal neuralgia is rare but causes severe pain. We retrospectively evaluated preoperative MR images of patients with glossopharyngeal neuralgia caused by neurovascular compression. MRI may be beneficial in patients with glossopharyngeal neuralgia and an offending compressing artery. If the offending vessel was the posterior inferior cerebellar artery (PICA), a loop ...
Rabellino Martin - - 2009
Endoleak is a frequent complication after endovascular repair of aortic rupture. We describe the case of a female patient with traumatic aortic injury, treated with endograft, who developed a type II endoleak through the left subclavian and vertebral arteries. Both arteries originated independently from the aortic arch, and were managed ...
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