Search Results
Results 201 - 250 of 3449
< 1 2 3 4 5 6 7 8 9 10 >
Ding Y - - 2010
There is no report regarding patency of elastase-induced aneurysms for more than a 2-year period. Our aim was to report aneurysm patency rates up to 5 years in the elastase-induced aneurysm model in rabbits. Twenty-five elastase-induced aneurysms were created in New Zealand white rabbits and followed for up to 5 ...
Franklin B - - 2010
Catheter-based intra-arterial digital subtraction angiography (IADSA) is widely trusted for diagnosing cerebral aneurysms. However, three-dimensional CT angiography (3D-CTA) is evolving. This study compares the diagnostic performance and inter-rater reliability of 64-slice 3D-CTA and IADSA. Nineteen patients with 26 suspected cerebral aneurysms (23 with confirmed aneurysms, three negative controls) underwent both ...
He Wenzhuan - - 2010
OBJECT: Posterior communicating artery (PCoA) aneurysms can occur at the junction with the internal carotid artery, posterior cerebral artery (PCA), or the proximal PCoA itself. Hemodynamic stressors contribute to aneurysm formation and may be associated with parent vessel size and aneurysm location. This study evaluates the correlation of various biomorphometric ...
Kulcsár Z - - 2010
We describe a case of a ruptured basilar bifurcation aneurysm that thrombosed during preparation for endovascular therapy as a complication of diagnostic angiogaphy, and showed a favorable evolution during long-term follow-up. Endogenous thrombosis of ruptured, non giant aneurysms is uncommon. The persistence of occlusion over time in such cases is ...
Malak Ramez - - 2010
OBJECTIVE: To present a new semiological description of unruptured middle cerebral artery (MCA) aneurysms. METHODS: We present a series of three MCA aneurysms presenting with progressive or paroxystic somatosensory symptoms in combination with visceral, motor, language or autonomic symptoms. RESULTS: A surgical approach was proposed for two aneurysms, and both ...
Appelboom Geoffrey - - 2010
OBJECTIVE: To report a unique case of wide-necked mycotic cerebral aneurysm treated with a new generation of intracranial stent. CLINICAL PRESENTATION: A 10-year-old girl presented with meningitis complicated by an infectious intracavernous large aneurysm revealed by cranial nerve palsy. INTERVENTION: The aneurysm was treated by a new-generation, flow-diverting, endoluminal implant ...
Saremi Farhood - - 2010
OBJECTIVES: The aim of this study was to determine the prevalence of coronary venous aneurysm in patients with no history of cardiac arrhythmia using 64-slice multidetector computed tomography. BACKGROUND: Coronary vein aneurysm frequently has been reported in association with cardiac arrhythmias such as ventricular pre-excitation. METHODS: Coronary computed tomography angiograms ...
Celik Ozg?r - - 2010
OBJECTIVE: Recurrences after complete surgical clipping of an aneurysm base are rare. We describe a potential reason for such recurrences: the inappropriate application of a popular aneurysm clip. CLINICAL PRESENTATION: We present 3 cases in which intraoperative indocyanine green video angiography after clipping clearly demonstrates filling of the aneurysm. INTERVENTION: ...
Zhitao Jing - - 2010
BACKGROUND: Aneurysms arising from the P(2) segment of the posterior cerebral artery (PCA) are rare, accounting for less than 1% of all intracranial aneurysms. To date, few studies concerning the management of P(2) segment aneurysms have been reported. OBJECTIVE: To review the microsurgical techniques and clinical outcomes of microsurgical treatment ...
Santillan A - - 2010
Palsy of the third cranial nerve (oculomotor nerve, CNIII) is a well-known clinical presentation of posterior communicating artery (P-com) aneurysm. We report a series of 11 patients with partial or complete third nerve palsy secondary to P-com aneurysm. All were treated with endovascular embolization within seven days of symptom onset. ...
Liu L - - 2010
A 30-year-old man was referred in our department for treatment of a midbasilar trunk aneurysm. His presenting symptoms included headache and dizziness. A CT scan at another hospital showed no significant findings whereas a digital subtraction angiogram disclosed a dissecting aneurysm in the midbasilar trunk, and there was severe stenosis ...
Brindle R S - - 2010
Summary: We describe a 65-year-old woman with an asymptomatic idiopathic lingual artery aneurysm which is suspected to be congenital. We review the literature on external carotid artery branch aneurysms, diagnostic evaluation and discuss treatment options for the various types and the specific chosen in the case presented.
Ahn Soon-Seob - - 2010
The aneurysm remnants rate was evaluated via three-dimensional digital subtraction angiography (3D-DSA) in the postoperative evaluation of clipped aneurysms. Data on surgically clipped aneurysms of anterior circulation obtained via postoperative 3D-DSA from February 2007 to March 2009 were gathered. The results of the postoperative 3D-DSA and of two-dimensional digital subtraction ...
Hoh Brian L - - 2010
Although there are several large-species animal models for saccular aneurysms, there is a need for a simple, reproducible saccular aneurysm model in mice. To develop a murine saccular aneurysm model, which replicates key characteristics that occur in the formation of human cerebral aneurysms. Elastase is applied extravascularly to the right ...
Sforza D M - - 2010
The development and validation of methods to stratify the risk of rupture of cerebral aneurysms is highly desired because current treatment risks can exceed the natural risk of rupture. Because unruptured aneurysms are typically treated before they rupture, it is very difficult to connect the proposed risk indices to the ...
Kim Hyun-Ok - - 2010
We report a case of Hughes-Stovin syndrome (HSS) associated with hyperhomocysteinemia. A 24-year-old man who has no clinical features suggestive of Behcet's disease was admitted for hemoptysis and dyspnea. Radiological and laboratory evaluation revealed multifocal pulmonary artery aneurysms involving bilateral segmental pulmonary artery, thrombi in right atrium and ventricle, and ...
Milotic Franko - - 2010
True aneurysms of the profunda femoris artery are extremely rare in comparison to pseudoaneurysms of the same artery. In most cases they are accompanied by aneurysms of the abdominal aorta or peripheral vessels. The most common reason for aneurysmic dilatation of vessels is a generalized vascular degenerative process. An isolated ...
Ogeng'o Julius A - - 2011
Aneurysms in the arteries of the upper extremity are rare but important in predicting aortic aneurysms and their potential to thromboembolize and cause limb loss. Their localization, age, and gender distribution vary between countries depending on ethnic background and cause. These data are valuable in the management of aneurysms, but ...
Ferrero E - - 2010
AIM: The aim of this study is to evaluate early and long term results obtained with a retrospective review in 8-year experience with surgical/endovascular treatment of visceral artery aneurysm (VAA) in a single center. METHODS: Between 2001 and 2008 in our vascular surgery unit visceral artery aneurysms were diagnosed with ...
Mascarenhas L - - 2010
A 56-year-old woman underwent surgery for a ruptured carotid-ophthalmic artery aneurysm. Intraoperative visual inspection confirmed that the ophthalmic artery was left intact. She had no light perception on the operated side right after surgery. Angiography one week after surgery confirmed exclusion of the aneurysm, no filling of the proximal portion ...
Figueiredo Eberval Gadelha - - 2010
Fusiform and dolichoectatic aneurysms are challenging lesions to treat with direct clipping. Treatment of these aneurysms often requires alternative surgical strategies, including extracranial-intracranial bypass, wrapping, or clip-wrap techniques. Nonetheless, these alternatives methods of treatment have been underused and frequently overlooked. OBJECTIVE: To report a series of nine cases of otherwise ...
Dinesh Shree Kumar - - 2010
OBJECTIVE: To assess the feasibility and potential utility of intraoperative computed tomographic angiography (iCTA) in identifying unexpected residual aneurysms and major cerebral artery occlusion after cerebral aneurysm surgery. METHODS: We prospectively studied 6 consecutive patients with ruptured anterior circulation aneurysms who underwent craniotomy and clipping. iCTA was performed in all ...
Ullery Brant W - - 2010
Beh?et's disease is a chronic, relapsing multisystemic inflammatory disorder characterized by recurrent orogenital aphthous ulcers, uveitis, and skin lesions. Vascular involvement occurs in up to 38% of these patients. Herein, we report a 19-year-old male who initially presented with an isolated celiac artery aneurysm that was treated with open surgical ...
Zhou Y - - 2010
OBJECTIVE: A series of aneurysms located at the 4 (th) or 5 (th) segment of the posterior inferior cerebellar artery (PICA) has not been previously reported in the literature. We report six such cases and analyze their clinical characteristics and outcomes from three different treatment strategies. MATERIAL AND METHODS: We ...
Harada Kei - - 2010
The endovascular approach has become the standard treatment for ruptured aneurysms during the vasospasm risk period following subarachnoid hemorrhage; however, it may be disadvantageous under certain conditions. We report a patient with a ruptured middle cerebral artery aneurysm with severe vasospasm and thrombosis within the aneurysm immediately after angiography. Emergent ...
Ong Cheng K - - 2010
Traumatic aneurysms of the superior cerebellar artery are rare, especially in children. We report a 3-year-old boy who had a catastrophic delayed rupture of a traumatic aneurysm arising from the superior vermian branch of the left superior cerebellar artery. The aneurysm was likely caused by arterial wall laceration following contusion ...
Benedetto F - - 2010
We suggest an alternative endovascular treatment for gluteal artery aneurysm using Floseal a matrix of bovine gel and thrombin component. A 70-year-old woman, presented with claudicatio of the lower left limb after 150 m walking and pain at the sciatic nerve irradiation. A pulsating and painful mass was present in ...
Rescigno G - - 2010
Aneurysms of sinus of Valsava (SV) are uncommon heart lesions resulting from either a congenital deficiency or an acquired degeneration of the aortic wall. Usually these lesions are asymptomatic and incidentally diagnosed by echocardiography. Therefore when rupture occurs, they might require a prompt surgical operation. We report the case of ...
Kimura Naoto - - 2010
The major initiation process of intracranial aneurysms is thought to involve endothelial dysfunction due to hemodynamic stress. Angiotensin II type 1 receptor blockers and statins improve vascular endothelium function. The effects of olmesartan and pravastatin were investigated on the development of experimental aneurysms in rats. Eighty-three rats underwent aneurysm induction. ...
Harreld J H - - 2011
SUMMARY: Lenticulostriate aneurysms are rare and usually present with intracranial hemorrhage, limiting understanding of their natural course. We describe an unusual case of an unruptured rapidly growing distal LSA aneurysm in the setting of Moyamoya disease, successfully embolized with n-BCA following functional neurologic testing with amobarbital.
Gowland P-A - - 2010
Syphilis was once the most common cause of aortic aneurysm. For the last 60 years syphilis has been well controlled in the UK population. However, we present the recent case of a 52-year-old female black South African immigrant who was found to have a syphilitic aneurysm.
Akiyama Yukinori - - 2010
Decision-making during the management of unruptured cerebral aneurysms is a delicate process for both neurosurgeons and patients. Guidelines are evidence-based references that can aid in making decisions. However, neurosurgeons do not always follow guidelines in clinical practice. The purpose of this study is to verify the hypothesis that there is ...
Kelly S C - - 2010
This work reports on the implementation and validation of a two-system, single-analysis, fluid-structure interaction (FSI) technique that uses the finite volume (FV) method for performing simulations on abdominal aortic aneurysm (AAA) geometries. This FSI technique, which was implemented in OpenFOAM, included fluid and solid mesh motion and incorporated a non-linear ...
Ishikawa Tatsuya - - 2010
Craniotomy and clipping have been robust treatments for ruptured cerebral aneurysm for more than 50 years, with satisfactory overall outcomes. Technical advances, such as developments in microsurgical tools and equipment, adjunctive therapy, and novel monitoring methods enable safer and more efficient treatment. However, overall surgical results have not shown any ...
Valencia C - - 2010
The rupture of intracranial aneurysms is associated to significant morbidity and mortality rates. Although the mechanisms triggering this event are still unclear, morphology is among the factors considered by interventional neuroradiologists to decide treatment. The aim of this work is to explore the potential of morphological descriptors as rupture risk ...
Misaki Kouichi - - 2010
A 65-year-old man presented with a hyperplastic anomalous anterior choroidal artery (AChA) associated with a ruptured internal carotid artery aneurysm at the origin of a perforating artery manifesting as sudden onset of headache and vomiting. The aneurysm was too small for endovascular embolization, so we performed open surgery via the ...
Yerramneni Vamsi K - - 2010
Oculomotor nerve palsy (ONP) can be the presenting feature of ruptured or an unruptured posterior communicating artery (PcomA) aneurysm. Etiopathogenesis and recovery of ONP following treatment of PcomA aneurysm has been a subject of controversy. Case records of thirteen patients (mean age 42 years (range 19-65 years), M:F: 3:10) with ...
Romani Rossana - - 2010
Microneurosurgical techniques introduced by Prof. Ya┼čargil have been modified by the senior author (JH) when treating more than 4,000 patients with aneurysms at two of the Departments of Neurosurgery in Finland, Kuopio and Helsinki, with a total catchment area of close to three million people. This experience is reviewed, and ...
van der Kolk Nicolien M - - 2010
BACKGROUND: Aneurysms on the posterior circulation, most commonly located at the basilar top, have a higher risk of rupture than aneurysms on the anterior circulation. If hemodynamic shear stress, which has its maximum impact at the distal carina of bifurcations, explains the higher rupture rate of basilar top aneurysms, aneurysms ...
Date Isao - - 2010
Development of less invasive imaging studies, such as magnetic resonance angiography, has increased the chances that unruptured cerebral aneurysms are found. The rupture risk of "symptomatic" aneurysms is higher than for "asymptomatic" aneurysms; so "symptomatic" aneurysms are more often surgically treated. Many reviews examine "asymptomatic" unruptured cerebral aneurysms, but few ...
Lehecka Martin - - 2010
Background: Distal anterior cerebral artery (DACA) aneurysms, also known as pericallosal artery aneurysms, represent about 6% of all intracranial aneurysms. They are located on the A2-A5 segments of the anterior cerebral artery and on its distal branches. Methods: This paper summarizes present knowledge on radiological features, treatment options, treatment results, ...
Kawahara Ichiro - - 2010
We describe two rare cases of de novo basilar head aneurysms. The first patient presented with a ruptured basilar tip aneurysm, which developed de novo 5 years after the clipping of a left middle cerebral artery aneurysm. The second patient presented with a right basilar artery-superior cerebellar artery aneurysm, which ...
Nakamura Homare - - 2010
A 50-year-old man presented with a dissecting aneurysm arising from the extracranial portion of the right posterior inferior cerebellar artery (PICA) causing subarachnoid hemorrhage (SAH) and manifesting as sudden onset of disturbed consciousness. Computed tomography showed SAH with ventricular reflux predominantly in the posterior fossa. Angiography revealed a fusiform aneurysm ...
Ishii Daizo - - 2010
A 73-year-old woman presented with subarachnoid hemorrhage caused by a ruptured left distal anterior inferior cerebellar artery (AICA) aneurysm. Computed tomography showed a thin subarachnoid hemorrhage in the ambient cistern, and digital subtraction angiography revealed an aneurysm arising from the lateral branch of the left AICA, which was separate from ...
Phi Ji Hoon - - 2010
OBJECTIVE: Aneurysms that arise from a small branch of the posterior inferior cerebellar artery (PICA) are very rare. All reported PICA branch aneurysms originated from the choroidal branches or PICA communicating branches. No aneurysms of the PICA medullary branch have been reported previously. CLINICAL PRESENTATION: A 62-year-old woman presented with ...
Srivastava Sunita D - - 2010
BACKGROUND: The aim of this study was to evaluate the surgical management of carotid artery aneurysms (CAAs) presenting to a tertiary care center over a 10-year period of time. METHODS: The medical records of patients undergoing repair of CAA between 1998 and 2008 were reviewed. Demographics, clinical presentation, and operative ...
Nishijima Yasuo - - 2010
A 40-year-old woman with Cushing's disease presented with hypertensive cerebral hemorrhage. Neuroimaging detected an unruptured large intracavernous aneurysm, which projected beyond the midline, and thin crescent-shaped adenoma along the aneurysm wall. The aneurysm was treated with endovascular tight packing with coils. Transsphenoidal adenomectomy was then safely performed. The signs of ...
Oyama Hirofumi - - 2010
A 65-year-old female presented with an extremely rare case of a ruptured thrombosed large aneurysm of the anterior inferior cerebellar artery (AICA) in which a local hematoma compressed the medulla oblongata and caused acute respiratory failure. She first presented with dizziness, general fatigue, and nausea 2 months before admission. She ...
Inagawa Tetsuji - - 2010
BACKGROUND AND PURPOSE: A community-based study was conducted to estimate the site distribution of ruptured intracranial aneurysms and to evaluate clinical features related to aneurysm site. METHODS: The author reviewed data from 358 patients with aneurysmal subarachnoid hemorrhage (SAH) treated between 1980 and 1998 in Izumo, Japan. In 291 of ...
Valencia Alvaro - - 2010
Hemodynamically induced stress plays an important role in the progression and rupture of cerebral aneurysms. The current work describes computational fluid dynamics (CFD) simulations in anatomically realistic models of cerebral aneurysms. Twenty lateral aneurysms models were investigated. The models were obtained from three-dimensional rotational angiographic imaging data and CFD were ...
< 1 2 3 4 5 6 7 8 9 10 >