Search Results
Results 401 - 450 of 1505
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Hiramatsu H - - 2007
Summary: Extracranial vertebral artery aneurysm associated with neurofibromatosis (NF1) is very rare. The aneurysm was successfully treated by endovascular trapping of the aneurysm and proximal vertebral artery with coils.
Maranhão-Filho Péricles - - 2007
The article describes a woman with 53 year-old that has presented diplopia when looking down and adopted a tilted head position in order to read for the last six months. The neuro-ophthalmic examination shows isolated right superior oblique muscle paresis. The magnetic resonance and the angioresonance show the dolicoectatic basilar ...
Kang H-S - - 2007
BACKGROUND AND PURPOSE: We report 6 cases of retrograde flow through the anterior spinal artery (ASA) from cervical vertebral artery (VA) to intracranial distal VA because the perfusion from bilateral vertebral arteries was tenuous. Its hemodynamic and clinical implications are discussed. METHODS: In association with bilateral steno-occlusive disease of vertebral ...
Uhl Eberhard - - 2007
Vascular abnormalities or dissection of the vertebral artery are rare causes for cervical monoradiculopathy. We present the case of a 44-year-old female patient with a short history of radiculopathy of the right C5 root with radicular pain and a severe motor deficit. CT-imaging showed a hyperdense structure at the C4/C5 ...
Titlic M - - 2007
A 73-year old man presented with the tinnitus in the left ear for 11 months. Computer tomography (CT) showed an enlarged dolichoectasia of the left vertebral artery. Magnetic resonance imaging (MRI) of the brain shows dolichoectasia of the left vertebral artery and the initial part of the basilar artery. Multi-slices ...
Hagiwara Noriko - - 2007
We report a patient with dissection of the bilateral intracranial vertebral artery (VA) that did not present any symptoms other than occipital headache, which was probably associated with sleeping overnight in a car seat with unsteady head position. Although cerebral angiography revealed extensive dissection of the bilateral VA after branching ...
Krishnamurthy A - - 2007
Arcuate foramen is less known trait of the human atlas vertebra formed by a delicate bony spiculum, which arches backward from the posterior end of the superior articular process. Examination of 1044 human atlas vertebra revealed that the trait was present in 13.8% of the samples. The mean length of ...
Tubbs R Shane - - 2007
The foramen arcuale is infrequently found and is potentially a clinically/surgically significant anatomical variation of the atlas. When present, the vertebral artery travels through this bony ring after exiting the transverse foramen of the atlas and prior to entering the cranium. We present a case of an adult female skeleton ...
Pai Balaji S - - 2007
CONTEXT: The microsurgical anatomy of the posterior circulation is very complex and variable. Surgical approaches to this area are considered risky due to the presence of the various important blood vessels and neural structures. AIMS: To document the microsurgical anatomy of the posterior circulation along with variations in the Indian ...
Matsubara Takeshi - - 2007
STUDY DESIGN: A case of atlantoaxial fusion using an intralaminar (unilateral-crossing laminar screw) screw is presented in a patient with unilateral vertebral artery communication with the basilar artery. OBJECTIVES: To document the significance of the intralaminar screw technique in the aforementioned case. SUMMARY OF BACKGROUND DATA: Vertebral artery injury is ...
Owolabi Mayowa O - - 2007
Vascular risk factors predispose to vertebrobasilar ischemia. Cervical osteophytes can impinge on the vertebral artery causing mechanical occlusion during head turning. Presentation with vertigo in such instances is a common finding. A patient with obesity, hyperlipidemia, hypertension, cervical spondylosis, and vertigo triggered by head rotation is presented. She responded to ...
Lee Jin Soo - - 2006
OBJECTIVE: To compare clinical and angiographic characteristics and stroke patterns between spontaneous intracranial vertebral artery dissection (VAD) and vertebral large artery disease (LAD) (atherosclerosis). DESIGN: Retrospective study. SETTING: Tertiary referral center for cerebrovascular diseases. Patients Twenty-two patients with spontaneous VAD and 25 with LAD in the intracranial portion of the ...
Uz Aysun - - 2007
The anatomy of the thalamoperforating arteries located in the interpeduncular fossa must be well understood by surgeons to enable safe surgical treatment of basilar and posterior cerebral artery aneurysms. Therefore, we studied 30 posterior cerebral arteries obtained from 15 fresh adult cadaver brains. By filling the vertebral and internal carotid ...
Choudhari Kishor A - - 2007
The author describes a rare case of trigeminal neuralgia where four major named vessels of the posterior circulation were detected to be in close approximation to the trigeminal nerve. The quadruple vessel compression included a tortuous dilated basilar trunk, ipsilateral anterior inferior cerebellar artery, a superior cerebellar artery and superior ...
Park Jong-Ho - - 2007
In patients with posterior inferior cerebellar artery infarction (PICAI) or lateral medullary infarction (LMI), the ipsilateral vertebral artery is often hypoplastic and therefore at an increased risk of ischaemic stroke. To investigate the frequency and clinical relevance of hypoplastic vertebral artery (HVA) in patients with ischaemic stroke with or without ...
Whitmore Robert G - - 2007
BACKGROUND: Bow hunter's syndrome refers to symptomatic vertebrobasilar insufficiency provoked by physiologic head rotation. CASE DESCRIPTION: We report a unique case of bow hunter's syndrome caused by an accessory cervical ossification and the first use of intraoperative Doppler ultrasonography directly upon the vertebral artery during the surgical repair. After a ...
Kerry Roger - - 2006
In this paper, we present a clinical overview of cervical arterial dysfunction (CAD) for manual therapists who treat patients presenting with cervical pain and headache syndromes. An overview of vertebrobasilar arterial insufficiency (VBI) is given, with reference to assessment procedures recommended by commonly used guidelines. We suggest that the evidence ...
Paolini Sergio - - 2006
OBJECT: During surgical procedures focused on the cervical nerve roots, the surgeon works in proximity to the V2 segment of the vertebral artery (VA). Depending on the specific surgical approach, it may be necessary to identify, expose, or mobilize the artery. In most cases, the artery may be left undisturbed. ...
Ogasawara Kuniaki - - 2006
The authors describe transposition of the posterior inferior cerebellar artery (PICA) to the vertebral artery (VA) combined with parent artery occlusion for the treatment of VA aneurysms in cases in which a clip could not be applied because of the origin of the ipsilateral PICA. The aneurysm is trapped through ...
Murakami Takenobu - - 2006
We report a patient with anterior and posterior inferior cerebellar artery infarction, which manifested as profound deafness, transient vertigo, and minimal cerebellar signs. We suspect that ischaemia of the left internal auditory artery, which originates from the anterior inferior cerebellar artery, caused the deafness and transient vertigo. A small lesion ...
Al-Okaili Riyadh - - 2007
BACKGROUND: Bilateral aortic origins of the vertebral arteries are a rare anatomic variant, with fewer than 20 cases reported in the literature. This particular variant has only been reported twice. CASE DESCRIPTION: A 35-year-old woman presented to the emergency department after trauma to the head and a witnessed convulsion. Subsequent ...
Alt Burkhard - - 2006
During vertebrate development, the thyroid gland undergoes a unique relocalisation from its site of induction to a distant species-specific position in the cervical mesenchyme. We have analysed thyroid morphogenesis in wild-type and mutant zebrafish and mice, and find that localisation of growing thyroid tissue along the anteroposterior axis in zebrafish ...
Tubbs R Shane - - 2006
OBJECT: Surgical exposure of the extracranial part of the vertebral artery (VA) is occasionally necessary. Historically, the greater portion of the extracranial portion of the VA has been approached by traversing the anterior cervical triangle. The authors speculated that this entire segment of the VA could be reached with equal ...
Su Pen-Hua - - 2006
We describe an 11-year-old boy with facial dysmorphism consisting of a round and flat face, hypertelorism, short nose, and down turned corners of the mouth. In addition, he had severe mental retardation, short stature, imperforate anus, and basilar artery dolichoectasia. Cytogenetic evaluation revealed an unbalanced paternally inherited translocation t(18;20)(p11.2q13.3), resulting ...
Velat Gregory J - - 2006
BACKGROUND: Bow Hunter's syndrome is a rare form of vertebrobasilar insufficiency that may be successfully treated by surgical intervention. Use of intraoperative dynamic transcranial Doppler ultrasound for surgical treatment of vertebrobasilar insufficiency has been described in literature. However, this technique was inconsistent and unreliable in some patients. We present a ...
Okanishi Tohru - - 2007
A 6-month-old boy with persistent primitive trigeminal artery (PPTA) presented with stridor, dysphagia, delayed motor development and postural neck and shoulder dystonia. Magnetic resonance imaging/angiography and ultrasonography revealed PPTA, with flow from the dilated basilar artery to the right internal carotid artery, lower brainstem compression by the dilated basilar artery, ...
Mandrioli J - - 2006
Spinal strokes are often localised in the anterior spinal artery territory, whereas an involvement of the posterior spinal arteries (PSA) is uncommon, and usually unilateral. Bilateral PSA stroke is exceptional. A 70-year-old woman, after a mild head trauma, presented with cervical pain, left hypoaesthesia and sensitive ataxia, which then extended ...
Christoforidis G - - 2006
A 35-year-old man with polyostotic fibrous dysplasia and a massively enlarged skull presented with Lhermitte sensations due to an unstable, mulitseptated, lytic C2/3 vertebral body complex. Enlarged extracranial vasculature made open surgery a high-risk option and limited percutaneous access. A 5F catheter was directed by using a guidewire into the ...
da Costa Leodante B - - 2006
Posterior fossa ischemia is not a very frequent situation. It is responsible for about 25% of all ischemic strokes, and the vast majority of the cases are related to atherosclerotic stenosis of the vertebral and/or basilar arteries. Acute ischemia can also occur in the setting of vertebral artery dissection, traumatic ...
Kantarci Fatih - - 2006
The objective of our study was to determine the Doppler sonography findings suggestive of restenosis in the follow-up of patients treated by stent placement in the extracranial vertebral artery. Follow-up of vertebral artery stents with Doppler sonography may be performed by direct insonation of the stent or by indirect measurements ...
Ren Xianjun - - 2006
STUDY DESIGN: Observational and comparative study of the vertebral artery injury detected by 2-dimensional (2-D) time-of-flight magnetic resonance angiography (MRA) for admitting patients. Construct a strike-induced flexion injury model of cervical spine with blunt vertebral artery injury in dogs. OBJECTIVES: To evaluate the value of MRA for diagnosing vertebral artery ...
Daly Kevin J - - 2006
Five consecutive cases of prosthetic inter-vertebral disc displacement with severe vascular complications on revisional surgery are described. The objective of this case report is to warn spinal surgeons that major vascular complications are likely with anterior displacement of inter-vertebral discs. We have not been able to find a previous report ...
Sheah K - - 2006
Retropharyngeal haematoma is a rare cause of rapid neck swelling that may result in fatal upper respiratory airway obstruction. Reported causes include trauma, surgery, retropharyngeal inflammation, carotid aneurysm, aberrant artery at the thoracic inlet and bleeding diathesis. We report a 90-year-old man who developed rapid and progressive neck swelling following ...
Bruneau Michaël - - 2006
OBJECTIVE: Our goal was to evaluate the incidence of anatomic variations of the V2 segment (from its entrance into the transverse canal to C2) of the vertebral artery. Ignoring such variations during anterior or lateral approach to the cervical spine can lead to inadvertent injury and potentially serious complications. METHODS: ...
Benes Ludwig - - 2006
OBJECTIVE: The purpose of this article is to focus for the first time on the operative management of a direct vertebral artery (VA)-posterior inferior cerebellar artery (PICA) end-to-end anastomosis in a partially thrombosed giant VA-PICA-complex aneurysm and to underline its usefulness as an additional treatment option. METHODS: The operative technique ...
Akdeniz Bahri - - 2007
We present a case of a 63-year-old man who was admitted to the hospital due to an acute coronary syndrome. Angiographic and magnetic resonance angiography examination showed an abnormal right vertebral artery originating from the ascending aorta, just above the left coronary sinus Valsalva in addition to aberrant retro-esophageal right ...
Kurt A - - 2006
Summary: Vertebral pseudoaneurysm and arteriovenous fistulas are very rare and are commonly due to penetrating trauma to craniocervical region. A 20-year-old man was presented with progressive swelling and pulsatile mass on the left side of his face. He had been stabbed two weeks ago on the left side of his ...
Eberhardt Olaf - - 2006
Two of three patients with vertebrobasilar stroke harbor a stenosis of the vertebral or basilar arteries. The best treatment for secondary prophylaxis in vertebrobasilar occlusive disease has not been defined. In patients with high-grade stenoses, and especially those refractory to medication, stenting offers the chance to restore normal flow and ...
Yamaki Koh-ichi - - 2006
The aim of the present study was to examine the vertebral arteries. The origins of the right and left vertebral arteries and their entrance points into the cervical transverse foramen were examined in dissections of 515 Japanese cadavers (303 males, 212 females) at Kurume University School of Medicine from 1990 ...
Bulsara Ketan R - - 2006
BACKGROUND: Four cases of vertebrobasilar insufficiency secondary to osteophyte formation at C5-C6 have been reported in the literature. In this article, we report the fifth such case and discuss the utility of dynamic computed tomographic angiography (CTA) in the management of this disorder. CASE DESCRIPTION: A 55-year-old right-handed man presented ...
Ionete C - - 2006
Duplication of the vertebral artery is a rare developmental anomaly. Duplication and fenestration are terms often used incorrectly and interchangeably in the literature. To the best of our knowledge, this is the first report to describe bilateral duplication of the extracranial vertebral artery. Bilaterally, there are 2 separate origins of ...
Hoeft Mark A - - 2006
BACKGROUND: Recent articles have detailed the adverse events associated with transforaminal steroid injections into the radicular arteries. Guidelines on strict transforaminal epidural techniques have been described to limit complications. There remains limited information regarding the cervical level of entry, location within the intervertebral foramina, and prevalence of the radicular arteries ...
Shoja M M - - 2006
Variations of the vertebrobasilar arterial complex are important with regard to their potential clinical impact. We present an unusual case of the vertebral artery, in which the left vertebral artery in its ascent in the neck through the transverse foramina passed posteriorly between the transverse processes of C3 and C4 ...
Westworth Diccon R - - 2006
A 3-year-old dog with cervical myelopathy resulting from a vascular anomaly is described. Marked intradural-extramedullary spinal cord compression was observed, in association with multilevel ectatic anastomotic radicular arterial branches connecting the left and right vertebral arteries. A nonpatent proximal segment of the right subclavian artery had resulted in compensatory enlargement ...
Qureshi A I - - 2006
OBJECTIVE: To report the feasibility, safety, and 1-month results of performing stent placement for vertebral origin stenosis with the use of a distal protection device. Distal protection devices have been shown to reduce the number of cerebral emboli and subsequent ischemic events when used as adjuncts to percutaneous carotid intervention; ...
Bruneau Michaël - - 2006
OBJECTIVE: We describe the normal anatomy, variations, and the surgical technique to expose and control the V1 segment of the vertebral artery (VA). METHODS: The VA V1 segment extends classically from the subclavian artery to the C6 transverse foramen. It courses obliquely upwards and posteriorly in the cervical fat tissue, ...
Raya Angel - - 2006
Although vertebrates seem to be essentially bilaterally symmetrical on the exterior, there are numerous interior left-right asymmetries in the disposition and placement of internal organs. These asymmetries are established during embryogenesis by complex epigenetic and genetic cascades. Recent studies in a range of model organisms have made important progress in ...
Choi Kwang-Dong - - 2006
A 51-year-old man developed sudden vertigo, right hearing loss and dysphagia. Examination revealed right Horner syndrome, spontaneous torsional-horizontal nystagmus, right central type facial palsy, dysarthria, reduced soft palate elevation without gag reflex, left hypesthesia, right dysmetria and imbalance. Audiometry and bithermal caloric tests documented right sensorineural hearing loss and canal ...
Woo Seong-Ryong - - 2006
We present a case of a 55-year-old woman with pontine infarction and fenestration of the basilar artery that was demonstrated using virtual endoscopy. The patient had motor weakness of the right side with sudden onset. Diffusion- and T2-weighted MR images revealed high signal intensities in the left pontine regions, and ...
Adaletli Ibrahim - - 2006
We present a 10-year-old boy who was admitted with headache and neurological symptoms after a trauma in the school yard. Cerebral MRI revealed an extensive ischaemia in the bilateral cerebellar hemispheres, left middle cerebellar peduncle, and right vermis. Digital subtraction angiography demonstrated bilateral vertebral artery dissections at the dural entry ...
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