Search Results
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Dashti Reza - - 2007
BACKGROUND: Distal middle cerebral artery aneurysms originate from branches of MCA distal to its main bifurcation or the peripheral branches. Distal middle cerebral artery aneurysms are the least frequently seen among the middle cerebral artery aneurysms. The purpose of this article is to review the practical anatomy, preoperative planning, and ...
Becker Timothy A - - 2007
OBJECTIVE: We sought to expand our assessment of calcium alginate as an embolic agent in an aneurysm model in swine that survived from 30 to 90 days. The objective of this study was to assess the biocompatibility and stability of calcium alginate in aneurysms in vivo. METHODS: Ten models were ...
Nonaka Tadashi - - 2007
BACKGROUND: Clipping a paraclinoid aneurysm is difficult if the patient has a visual disturbance. Visual function sometimes deteriorates postoperatively for patients with a large aneurysm. In this study, we report the long-term follow-up of patients with visual impairments attributed to optic nerve compression when paraclinoid aneurysms are surgically treated. METHODS: ...
de Gast Anjob N - - 2007
OBJECTIVE: The purpose of this study was to evaluate aneurysm size and clinical symptoms midterm after therapeutic carotid artery occlusion in 39 patients with large or giant carotid artery aneurysms. METHODS: Between January 1996 and August 2004, 39 patients with large or giant carotid artery aneurysms were treated with therapeutic ...
Fillinger Mark - - 2007
The decision to operate on a patient with an aortic aneurysm is based on the risk of aneurysm rupture versus the risk of aneurysm repair, within the context of the patient's overall life expectancy. Risk of rupture is still primarily based on the maximum aneurysm diameter, with some allowances made ...
Krings T T From the Service de Neuroradiologie Diagnostique et Thérapeutique, Hôpital de Bicêtre, Le Kremlin-Bicêtre, Paris, France - - - 2007
Within the group of giant and large aneurysms the subgroup of the so-called "partially thrombosed" aneurysms can be differentiated according to clinical and neuroimaging findings. The present study was carried out to determine the site of bleeding of these aneurysms and what implications concerning their pathomechanism can be drawn from ...
Ferroli P - - 2007
Giant intracranial aneurysms may not be amenable to direct surgical clipping or endovascular coiling because of three critical factors: 1) lack of clear aneurysmal neck; 2) giant size; 3) involvement with critical perforating or branch vessels. Techniques of flow redirection, however, may offer an alternative treatment strategy for these difficult ...
McMahon Colin J - - 2007
Congenital left ventricular (LV) aneurysm is a rare malformation of unknown cause that is often associated with a poor prognosis. This study was undertaken to evaluate the usefulness of cardiac magnetic resonance imaging in patients with congenital LV aneurysms and to determine the relation between clinical manifestations and the morphologic ...
Krings T - - 2007
Basilar artery "fenestration" is the result of a failed fusion of the bilateral longitudinal neural arteries and can be associated with a saccular aneurysm, which typically arises at the proximal juncture of the unfused segment. "Kissing" aneurysms at this site, i.e. two aneurysms arising from the proximal junction of the ...
Rohde Veit - - 2007
We hypothesized that neuronavigational 3-dimensional display of vessel and aneurysm anatomy, which is adjusted to the actual surgeon's view, could be helpful during the critical steps of aneurysm treatment. A total number of 32 patients with 42 aneurysms entered this prospective clinical trial. With a neuronavigational system, a 3-dimensional image ...
Horiuchi Tetsuyoshi - - 2007
We report our experience with the anterior subtemporal approach for the posterior communicating artery aneurysm protruding posteriorly. Between 2000 and 2005, seven patients with posterior communicating artery aneurysm were operated on through the anterior subtemporal approach. The approach provided a better view than the pterional approach. This approach seems to ...
Weber Werner - - 2007
INTRODUCTION: We report the results of a prospective clinical study using a new self-expanding nitinol stent (Enterprise) designed for the treatment of wide-necked intracranial aneurysms. METHODS: We treated 31 saccular, wide-necked intracranial aneurysms in 30 patients. Ten aneurysms had recanalized after prior endovascular treatment without a stent, and 21 aneurysms ...
Dashti Reza - - 2007
BACKGROUND: Of the MCA aneurysms, those located at the main bifurcation of the MCA (MbifA) are by far the most frequent. The purpose of this article is to review the practical anatomy, preoperative planning, and avoidance of complications in the microsurgical dissection and clipping of MbifAs. METHODS: This review, and ...
Attabib Najmedden - - 2007
/The standard techniques of microvascular decompression (MVD) surgery in which implant materials such as shredded Teflon felt are used may be inadequate in some complex cases. The authors evaluated the use of fenestrated aneurysm clips to maintain transposition of culprit vessels in patients with trigeminal neuralgia (TN) and hemifacial spasm ...
Dorsch N W C - - 2007
Purpose To analyse usefulness of CTA in detecting aneurysms in subjects with a family history, and in follow-up of patients with known aneurysms. Methodology From 1997 to 2004, 286 adults with a family history of cerebral aneurysms were investigated by a spiral CT angiogram of the Circle of Willis. Their ...
Horie Nobutaka - - 2007
The authors report three cases of progressive vasogenic brain edema surrounding a cerebral aneurysm after endovascular coil embolization. In all three cases embolization was incomplete due to the aneurysms' large sizes and wide necks. Follow-up magnetic resonance imaging revealed de novo vasogenic brain edema surrounding the aneurysms 3 to 6 ...
Roche-Nagle Graham - - 2007
Visceral artery aneurysm is a rare but clinically important form of vascular pathology, showing a high mortality rate in emergency surgery. Most often these aneurysms cause no symptoms and are therefore incidental findings. Reports on ileocolic artery aneurysms are rare and often anecdotal. Therapeutic procedures can be performed either surgically ...
Eddleman Christopher S - - 2007
OBJECTIVE: Lenticulostriate artery aneurysms are rare. When present, distal locations in and around the basal ganglia are more common and often present with intraparenchymal hemorrhage when ruptured. We present a very rare case of a ruptured proximal lenticulostriate fusiform aneurysm presenting with subarachnoid hemorrhage. CLINICAL PRESENTATION: We report the case ...
Ding Y H - - 2007
BACKGROUND AND PURPOSE: Animal models with appropriate volume are crucial for preclinical assessment of aneurysm therapies. Our purpose was to control the aneurysm volume by adjusting the position of ligation during creation of elastase-induced aneurysms in rabbits. MATERIALS AND METHODS: Sixty elastase-induced aneurysms in rabbits were created. Two different methods ...
Mack William J - - 2007
OBJECTIVE: Deep hypothermic circulatory arrest is a useful adjunct for treating complex aneurysms. Decreased cerebral metabolism and resultant ischemic tolerance create an environment suitable for devascularizing high-risk lesions. However, the advent of modern imaging modalities, innovative cerebral revascularization strategies, and the emergence of endovascular stenting and coiling limit the number ...
Bodla Ali A - - 2007
Bilateral intracavernous carotid artery aneurysms are rare and can present with different clinical findings. We report such a case presenting with progressive cranial nerve palsies due to gradual increase in the size of aneurysms. This case demonstrates the clinician's difficulty in diagnosis when isolated cranial nerve palsy is the sole ...
Mangrum W I - - 2007
BACKGROUND AND PURPOSE: The molecular characteristics of intracranial aneurysms are still poorly documented. A rabbit elastase aneurysm model has been helpful in the evaluation of devices and strategies involved in endovascular treatment of aneurysms. The goal of this project was to document the molecular changes, assessed by gene chip microarrays, ...
Ikeda Osamu - - 2007
Aneurysms of the pancreaticoduodenal artery are rare. Degeneration of pancreaticoduodenal arcade vessels due to these aneurysms is associated with celiac artery stenosis or occlusion. Untreated lesions enlarge progressively and may rupture spontaneously. As the location of aneurysms of pancreaticoduodenal arcade vessels renders their surgical extirpation a challenge, we examined whether ...
Agid Ronit - - 2007
Childhood aneurysms have special characteristics different from adults' aneurysms. Their features were found to significantly differ from aneurysms in adults especially in their gender prevalence, location, morphology and underlying etiology. Treatment options include both surgical and endovascular methods. Whenever possible, endovascular treatment for pediatric aneurysms is the recommended approach, since ...
Sugiyama K - - 2007
AIM: To elucidate the mechanism of occurrence of splanchnic artery aneurysm associated with coeliac artery stenosis due to compression by the median arcuate ligament, and also to discuss the management for this relatively rare condition. MATERIALS AND METHODS: Five consecutive cases of splanchnic artery aneurysm associated with coeliac axis stenosis ...
Prat Ricardo - - 2007
OBJECTIVE: Patients with haematoma secondary to middle cerebral artery aneurysm often require urgent surgical treatment consisting of evacuation of the haematoma and aneurysmal clipping. METHODS: . We present our experience over 5 years with 12 patients who underwent surgery before the first 8h of bleeding. Surgery included craniotomy, evacuation of ...
Gnanamuthu Birla Roy D - - 2008
Azygos vein aneurysm is a rare differential diagnosis for a posterior mediastinal mass lesion. It is often an incidental finding in a routine chest radiograph. Most azygos vein aneurysms are secondary to conditions causing elevated flow or pressure in the azygos system, like cardiac failure or cirrhosis of the liver. ...
Oshiro Shinya - - 2007
Ruptured aneurysms of the distal anterior cerebral artery (ACA) are relatively rare and surgical management provides some unique technical challenges. This retrospective analysis of 20 patients with distal ACA aneurysms evaluated the clinical features and surgical strategies. The characteristic findings were small and common concurrent aneurysms, and frequent intracerebral hematoma ...
Heckenkamp J - - 2007
Aneurysms of the inferior thyroid artery are rare. The natural course of these aneurysms seems to be unfavourable, why aneurysm exclusion is recommended in the literature. Open surgical repair is complex why endovascular exclusion seems to be an appealing alternative. We present a patient who developed dysphagia and respiratory distress ...
Pasha Shabana F SF Division of General Internal Medicine, College of Medicine, Mayo Clinic, Rochester, MN 55905 - - 2007
Autopsy studies suggest that splanchnic artery aneurysms may be more frequent than abdominal aortic aneurysms. These aneurysms are important to recognize because up to 25% may be complicated by rupture, and the mortality rate after rupture is between 25% and 70%. However, little is known about the natural history and ...
Gupta Sunil Kumar - - 2007
Internal carotid artery (ICA) bifurcation aneurysms are relatively uncommon and frequently rupture at a younger age compared to other intracranial aneurysms. We have treated a total of 999 patients for intracranial aneurysms, of whom 89 (8.9%) had ICA bifurcation aneurysms, and 42 of the 89 patients were 30 years of ...
Kim T S - - 2007
OBJECTIVE: We present our experience with the neuronavigation system used for surgery of distal anterior cerebral artery (DACA) aneurysms. METHODS: Between 2001 and 2004, 12 patients with a DACA aneurysm were consecutively treated with direct clipping assisted by the neuronavigation system. We used the BrainLAB Vector Vision2 neuronavigation system (BrainLAB, ...
Holmin S - - 2007
INTRODUCTION: A combination of cervical and intradural aneurysm in children in the absence of systemic disorders has previously not been reported. CASE REPORT: We report two boys with an identical combination of fusiform cervical internal carotid aneurysm and ipsilaterally located vertebrobasilar aneurysm. They had no history of trauma, they did ...
Izumi T T Department of Neurosurgery, Nagoya University Graduate School of Medicine; Nagoya, Japan - - - 2007
We investigated differences in the treatment strategies for ruptured aneurysms among 26 hospitals affiliated with Nagoya University and any changes in those strategies based on responses to a questionnaire.We also surveyed the data concerning patients with a ruptured aneurysm collected from our affiliated hospitals between 2001 and 2002. In half ...
Uygur Er - - 2007
Aneurysms are seen rarely at the P2-P3 junction of the posterior cerebral artery (PCA). P2-P3 junction aneurysm surgery is challenging. Here, a successful clipping of a large P2-P3 junction aneurysm via a subtemporal approach is reported. A 26-year-old woman presented with a 6-month history of left occipito-parietal headache. Computed tomography ...
Kucukarslan Nezihi - - 2007
Descending aorta saccular aneurysms are seen less than fusiform aneurysms. All symptomatic saccular aneurysms must be operated. In this study, we present a saccular aneurysm case developed at the descending aorta 1 year after a motor vehicle crash. Following an aorta-LAD saphenous vein graft anastomosis performed in beating heart, the ...
de Gast A N - - 2007
BACKGROUND AND PURPOSE: The purpose of this study was to assess the incidence of de novo aneurysm formation, the incidence of subarachnoid hemorrhage (SAH), and the growth of existing untreated aneurysms in 52 patients after therapeutic carotid artery balloon occlusion for carotid aneurysms. PATIENTS AND METHODS: Between January 1996 and ...
Kakarla Udaya K - - 2007
OBJECTIVE: This is the first report of the rupture of a giant aneurysm in a patient who sustained a remote angiographically negative subarachnoid hemorrhage (SAH). CLINICAL PRESENTATION: A 62-year old woman initially presented with a Fisher Grade III SAH 9 years ago. Her evaluation, which included cerebral angiography, magnetic resonance ...
Bian Liu-Guan - - 2007
We report a patient with a posterior inferior cerebellar artery (PICA) aneurysm and an incidental facial nerve schwannoma at the cerebellopontine angle (CPA). A 46-year-old woman presented with the sudden onset of a severe headache, nausea, and vomiting. She had no other abnormal neurological symptoms and signs. Computed tomography (CT) ...
Cho Chun Sung CS Department of Neurosurgery, Dankook University College of Medicine, Cheonan, Korea - - - 2007
Among posterior circulation aneurysms, basilar tip aneurysm is the most difficult to treat. Because of their deep location in front of the brainstem and their intimate relationship to perforating vessels, morbidity and mortality rates associated with direct exposure used to be daunting. Complex intracranial aneurysms are not uncommonly encountered in ...
Turk A S - - 2007
BACKGROUND AND PURPOSE: The canine vein pouch aneurysm model is widely used for testing and development of devices directed at the endovascular treatment of aneurysms. Our purpose was to determine the incidence of spontaneous thrombosis and rupture of these aneurysms. MATERIALS AND METHODS: A retrospective review of laboratory records of ...
Mueller-Kronast Nils - - 2007
Despite various criticisms, the International Subarachnoid Aneurysm Trial (ISAT) has provided Class I evidence that endovascular therapy (EVT) results in superior 1-year outcomes, compared with surgical repair of ruptured aneurysms equally amenable to both types of treatment. Although the lower occlusion rates and higher rates of recanalization in aneurysms treated ...
Wain Reese A - - 2007
Popliteal artery aneurysms account for 85% of all peripheral aneurysms and are frequently associated with abdominal aortic aneurysms. Up to 75% of all popliteal artery aneurysms are discovered in symptomatic patients who present with arterial insufficiency, leg swelling, or pain. Popliteal artery aneurysms can be diagnosed with duplex ultrasonography. Aneurysm ...
Hillegass William B - - 2007
The endovascular management of a patient with a ruptured giant coronary aneurysm presenting with chest pain followed by anterior chest wall ecchymosis and shock is described. The inflow to a large, acutely leaking right coronary aneurysm was successfully sealed with the Amplatzer Vascular Plug device. The patient was estimated to ...
Jayaraman Mahesh V - - 2007
BACKGROUND: Aneurysms of the middle cerebral artery (MCA) trifurcation region are underrepresented in large series of endovascularly treated aneurysms. The purpose of our study was to evaluate the incidence of specific morphologic features of MCA bifurcation aneurysms that may affect suitability for endovascular treatment. METHODS: We evaluated 53 consecutive patients ...
Hattori Naoyuki - - 2007
The present study analyzed the impact of case volume on outcome after cerebral aneurysm clipping at all 382 core neurosurgical training centers certified by the Japan Neurosurgical Society. A survey requested information on all clipping surgeries for cerebral aneurysms performed during 2003. Among these centers, 369 (96.6%) responded to our ...
Leon Luis R LR - - 2007
Aneurysms involving the infrapopliteal arteries are rare, with most cases being attributed to a previous traumatic event. Mycotic aneurysms in this location are even more uncommon. Owing to their infrequency, these aneurysms represent a difficult diagnostic challenge. We present a case of a symptomatic anterior tibial artery aneurysm in a ...
Takahashi Jun C - - 2007
Partially thrombosed giant aneurysms that are located at the basilar artery (BA) bifurcation and are not amenable to clip application are among the most challenging lesions for neurosurgeons. They compress vital structures such as the brainstem and the thalamus, and the prognosis is extremely poor when they are left untreated. ...
Kim Do Hyung do - - 2007
Formation of cerebral de novo aneurysms (CDNA) is rare, and the pathogenesis remains obscure. In this study, we investigated the factors that contribute to the formation of CDNA and suggest guidelines for following patients treated for cerebral aneurysms. We retrospectively reviewed 2,887 patients treated for intracranial aneurysm at our institute ...
Nguyen Thanh N - - 2007
BACKGROUND: Aneurysm recanalization is a significant problem in coil-treated intracranial aneurysms. We hypothesize ruptured aneurysms are more likely to demonstrate this phenomenon than unruptured aneurysms. METHODS: This was a retrospective study over 4 years. Initial and follow-up angiography results were reviewed and aneurysm obliteration was classified: I, complete; II, residual ...
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