Search Results
Results 351 - 400 of 1371
< 3 4 5 6 7 8 9 10 11 12 13 >
Mori Kensaku - - 2008
PURPOSE: To evaluate the feasibility and efficacy of a modified metallic coil embolization technique for pulmonary arteriovenous malformations (PAVMs) using coil anchors and occlusion balloon catheters. METHODS: Five consecutive female patients with 6 PAVMs were included in the present study. One of the 6 PAVMs was of the complex type ...
Nguyen Thanh N - - 2008
Iatrogenic perforation or rupture during aneurysm coiling can be difficult to manage and may lead to fatal bleeding. We describe a lifesaving technique of isolating the subarachnoid segment of the vertebral artery using two balloons to trap flow to a ruptured PICA aneurysm allowing time to coil the parent artery ...
Guglielmi Guido - - 2007
OBJECTIVE: Peripheral brain aneurysms arise from the distal segments of cerebral arteries. They can be treated by surgery or by an endovascular approach. We present our experience of endovascular treatment of peripheral brain aneurysms with a novel endovascular device, the Guglielmi detachable coil (GDC) "crescent." METHODS: The GDC "crescent" is ...
Kelly Michael E - - 2007
OBJECTIVE: To describe a novel technique for single stent reconstruction of wide-necked aneurysms arising from the circle of Willis. METHODS: Neuroform stents (Boston Scientific/Target, Fremont, CA) were placed across the basilar apex (right P1 to left P1) via the posterior communicating artery in two patients, across the left carotid terminus ...
Eddleman Christopher S - - 2007
BACKGROUND: Ruptured CCAs are traditionally treated with endovascular management. Advances in microstent and coil technology have allowed improved intracranial navigation, increased coil packing density, and coil volume expansion to facilitate complete coil embolization of aneurysms/fistulae. We report a case of a ruptured CCA with an associated CCF treated with an ...
Schmidt G W - - 2007
BACKGROUND AND PURPOSE: The proximity of the paraclinoid segment of the internal carotid artery to the visual pathways may result in visual deficits when patients present with aneurysms in this segment. Although surgical clip ligation of these aneurysms has been the standard of care for decades, the advent of coil ...
Nguyen Thanh N - - 2007
OBJECT: Pericallosal artery aneurysms are uncommon. Their treatment strategy, surgical or endovascular, will present specific challenges. The objective of the study was to compare risks of coil therapy and the recurrence rate of pericallosal artery aneurysms with aneurysms in other intradural locations. METHODS: The authors examined data that were stored ...
Marden Franklin A - - 2008
BACKGROUND: Perianeurysm edema is an uncommon complication of intracranial aneurysms, occurring mostly in giant aneurysms that suddenly thrombose. CASE DESCRIPTION: We present the first report of an unruptured, nongiant, saccular aneurysm that developed marked perianeurysm edema after embolization with Matrix2 coils. In this case, follow-up catheter angiography showed a new ...
Kang Hyun-Seung - - 2008
INTRODUCTION: Nexus coils are a type of bioactive coil used to embolize intracranial aneurysms. The purpose of this study was to test the feasibility of the noninvasive follow-up of aneurysms treated with Nexus coils by means of magnetic resonance angiography (MRA). METHODS: Three-dimensional (3D) time-of-flight (TOF) MRA images of patients ...
Peluso J P P - - 2008
BACKGROUND AND PURPOSE: The purpose of this study was to report our experience with endovascular treatment of 14 patients with symptomatic intradural vertebral dissecting aneurysms. MATERIALS AND METHODS: Between January 2000 and January 2006, 14 patients with symptomatic intradural dissecting vertebral aneurysms were treated. A total of 756 (568 ruptured, ...
De Keukeleire K - - 2008
BACKGROUND AND PURPOSE: Intracranial aneurysms with a wide-neck or an unfavorable dome-to-neck ratio may be difficult to treat properly and safely. Our aim was to evaluate the TriSpan neck-bridge device to assist coiling of wide-neck bifurcation aneurysms in the anterior circulation. MATERIALS AND METHODS: In 14 patients, we performed 16 ...
Gallas S - - 2008
BACKGROUND AND PURPOSE: The purpose of our study was to evaluate the technical feasibility, morbidity and mortality, and durability of occlusion of unruptured aneurysms treated with Guglielmi detachable coils (GDCs) with a long-term follow-up. MATERIALS AND METHODS: Between January 1998 and January 2005, we treated 321 unruptured aneurysms with GDCs ...
Butteriss D - - 2008
BACKGROUND AND PURPOSE: Endovascular treatment of intracranial aneurysms using platinum coils is effective, but uncommonly aneurysms recur. New-generation coils, such as Cerecyte, aim to address this problem. This study examines the safety and efficacy of these coils in the treatment of a cohort of ruptured and unruptured aneurysms MATERIALS AND ...
Pierot L - - 2008
BACKGROUND AND PURPOSE: Polyglycolic/polylactic acid-covered platinum coils have been proposed to reduce the rate of aneurysm recanalization after endovascular treatment. A prospective and multicenter registry was conducted in France to evaluate the safety and short-term and midterm efficacy of Matrix coils. This analysis focused on anatomic midterm results. MATERIALS AND ...
Geyik Serdar - - 2007
PURPOSE: The aim of this study was to evaluate the stability of occlusion of terminal bifurcation aneurysms after embolization with hydrogel-coated coils. METHODS: Of 35 bifurcation aneurysms, 34 were treated with hydrogel-coated coils in combination with platinum coils, and 1 was treated with hydrogel-coated coils only. Aneurysms were located at ...
Pickett Gwynedd E - - 2007
OBJECTIVE: Hydrogel-coated coils (MicroVention, Inc., Aliso Viejo, CA) for endovascular aneurysm treatment offer the theoretical advantages of increased volumetric occlusion, thrombus stabilization, and improved neointimal healing. Reports of local inflammation and hydrocephalus after coiling of unruptured aneurysms have raised questions about the safety profile or appropriate usage of these new ...
Aikawa Hiroshi - - 2007
This study retrospectively reviewed 227 patients with ruptured solitary cerebral aneurysm who underwent endovascular embolization with detachable coils between March 1997 and March 2006 to establish the incidence of rebleeding after endovascular treatment for ruptured cerebral aneurysm and identify the risk factors. The site and size of the aneurysm, the ...
Bouzeghrane Fatiha - - 2007
PURPOSE: Matrix metalloproteinase (MMP)-9 plays various roles in vascular healing and angiogenesis. This study was conducted to determine if MMP-9 is involved in healing or recanalization after therapeutic occlusion of arteries or aneurysms. MATERIALS AND METHODS: Angiographic and pathologic changes were investigated in canine bilateral venous pouch carotid aneurysms embolized ...
Yu Simon C H - - 2007
Endoluminal occlusion of giant intracranial aneurysms with coil embolization is a viable endovascular treatment option alternative to surgical clipping. However, due to the relatively large aneurysm size, the use of embolization coils for giant aneurysms could be great. A loose-packing embolization strategy in which the fundus of the aneurysm is ...
Zaidat Osama O - - 2007
OBJECTIVE AND IMPORTANCE: We describe a case of stent-assisted coil embolization of a wide neck right posterior inferior cerebellar artery (PICA) aneurysm via a transbrachial artery approach. CLINICAL PRESENTATION: A 73-year-old woman with a past medical history of hypertension, hyperlipidemia, colon cancer, and osteoporosis presented with a throbbing occipital area ...
Bendok Bernard R - - 2007
OBJECTIVE: The objective of this study was to assess the variations in packing density, effective neck coverage, and angiographic outcome between aneurysm coiling alone and with the support of the Enterprise Vascular Reconstruction Device (VRD; Cordis Neurovascular, Inc., Miami Lakes, FL). Although the use of VRD-assisted coiling is growing due ...
Turk Aquilla S - - 2008
INTRODUCTION: It is claimed that bioactive coils induce accelerated and more durable aneurysm healing. Data supporting this claim are quite limited. Our purpose was to compare the angiographic and histological results obtained following treatment with different coil types. METHODS: Bifurcation type aneurysms were surgically created in 24 dogs and treated ...
Hayabuchi Yasunobu - - 2007
The objective of this study was to report the clinical value of virtual endoscopy using multidetector-row CT (MDCT) for coil occlusion of patent ductus arteriosus (PDA). We studied 10 consecutive patients with PDA undergoing cardiac catheterization and coil occlusion. All patients had previously undergone MDCT, and subsequently underwent transcatheter closure ...
Biondi Alessandra - - 2007
OBJECTIVE: To evaluate the midterm results of intracranial stent-assisted coil embolization in the treatment of wide-necked cerebral aneurysms and to assess the efficacy of various strategies used in stent deployment. METHODS: A retrospective study of 42 patients with 46 wide-necked cerebral aneurysms enrolled in a prospective single-center registry of patients ...
Rana Arnab K - - 2007
Intracranial artery aneurysms are very rare in infants. There have been no previous reports of coil embolization to branches of the middle cerebral artery (MCA) in infants. The authors describe successful embolization of ruptured aneurysms of the right frontoopercular MCA branch in a 31-day-old infant, and of the left sylvian ...
Guglielmi G G Department of Neurosciences "La Sapienza" University of Rome, Rome, Italy - - - 2007
A concise historical review of the endovascular, endosaccular treatment of intracranial aneurysms is reported. The transition from detachable balloons to detachable coils is described. The development of microcatheters for intracranial endovascular navigation is also reported.
Bendszus Martin - - 2007
BACKGROUND AND PURPOSE: To assess safety and efficacy data of a new bioactive coil (Cerecyte) which is loaded with polyglycolic acid on the inside of the coil. METHODS: Fifty-four patients harboring 55 aneurysms were treated with Cerecyte coils. These aneurysms were matched in localization and size with aneurysms treated with ...
Kadirvel Ramanathan - - 2007
BACKGROUND AND PURPOSE: Even though endovascular coils have been widely used for the treatment of intracranial aneurysms, the cellular and molecular responses of aneurysms to the coils after embolization remain poorly understood. The aim of the present study was to understand the mechanism of apoptosis in aneurysms embolized with platinum ...
Turk Aquilla S - - 2007
INTRODUCTION: There is much speculation in reference to the occurrence and mechanisms of progressive aneurysm occlusion after treatment with bioactive coils. However, to our knowledge, there are no studies documenting the impact on progressive occlusion in aneurysms that are intentionally under-packed. METHODS: A total of 24 experimental side-wall aneurysms were ...
Tirakotai Wuttipong - - 2007
OBJECTIVE: To perform a retrospective study on the patients who underwent aneurysmal surgery following endovascular treatment. PATIENTS AND METHODS: We performed a retrospective study on eight patients who underwent aneurysmal surgery following endovascular treatment (-attempts) with gugliemi detachable coils (GDCs). The indications for surgery, surgical techniques and clinical outcomes were ...
Sluzewski M - - 2007
BACKGROUND AND PURPOSE: The purpose of this study was to retrospectively compare the packing performance of helical Guglielmi detachable coil (GDC) 18 (thickness, 0.0135-0.015 inch) with the packing performance of both helical GDC 10 (thickness, 0.010 inch) and complex Trufill/Orbit coils (thickness, 0.012 inch). MATERIALS AND METHODS: From our data ...
Tanaka Ryou - - 2007
We performed a retrospective study of 56 dogs with Patent Ductus Arteriosus (PDA) to evaluate the indications for and efficacy of transarterial PDA coil embolization. Transarterial PDA coil embolization was conducted in 37 cases (66.1%) and surgical ligation was conducted in 16 cases (28.6%). Three cases (5.4%) were diagnosed as ...
van Rooij W J - - 2007
BACKGROUND AND PURPOSE: The purpose of this study was to report the midterm clinical and angiographic results of coiling of very large (>15 mm) and giant basilar tip aneurysms. MATERIALS AND METHODS: Between January 1995 and October 2005, 44 very large and giant basilar tip aneurysms in 44 patients were ...
Wakhloo A K - - 2007
BACKGROUND AND PURPOSE: Five to 60% of coiled brain aneurysms recanalize, generally because of coil compaction. In vitro exclusive use of complex-shaped coils allows better packing of the aneurysmal sac and the neck as compared with helical coils. We report a single-center, prospective study using complex coils. Safety, packing density, ...
Möller H E - - 2007
A patient undergoing coil occlusion of a left internal carotid artery aneurysm was investigated by continuous arterial spin labeling MR imaging to evaluate perfusion territory mapping. Labeling was restricted to the left- or right-sided carotid artery by use of a separate neck coil. Before embolization, perfusion contrast was largely restricted ...
Bozinov O - - 2007
Cerebral aneurysms often recur after selective endovascular treatment with detachable coils and are usually treated by recoiling. Sometimes, however, surgical treatment is required, and application of the clip can be difficult. Evacuation of embolic material risks injuring eloquent structures or perforators, especially in the posterior circulation. In such cases parent ...
Yuen Chun-Man - - 2007
Regrowth of an intracranial aneurysm is a known complication of endovascular coiling. We report a patient with a traumatic pericallosal aneurysm which was initially treated successfully with endovascular coiling. Six-month follow-up angiography showed aneurysm regrowth with migration of the coils. To our knowledge, recurrence of a coiled pericallosal aneurysm of ...
Yamagami Takuji - - 2008
To retrospectively evaluate the use of Micronester coils in port-catheter implantation with the fixed catheter tip method in comparison with other previously used coils. The cohort of this study was 143 consecutive patients with unresectable advanced liver cancer for whom a port-catheter system was percutaneously implanted. In the most recent ...
Li Ming-Hua - - 2007
INTRODUCTION: The aim of this retrospective study was to evaluate the clinical efficacy and limitations of different endovascular modalities in the treatment of very large and giant intracranial aneurysms. METHODS: A group of 20 patients with very large and giant intracranial aneurysms treated by endovascular approaches were retrospectively analyzed. Of ...
Krayenbühl Niklaus - - 2007
The combination of surgical and endovascular treatment for complex intracranial aneurysms has previously been used in a staged fashion. To perfect the clipping process of a complex anterior communicating artery aneurysm and to avoid a second staged procedure, the authors used a method of direct intraoperative transaneurysmal coil-assisted clip occlusion ...
Barbetakis Nikolaos - - 2007
A 71-year-old male patient was admitted with methicillin-resistant staphylococcus aureus mediastinitis two months after coronary artery bypass grafting. Treatment with immediate surgical debridement, removal of sternal wires and use of vacuum-assisted closure device was started. Spiral computerised tomography and aortography revealed a false aortic aneurysm at the cannulation site. Active ...
Ahmed Aliya - - 2007
There have been rapid and significant advances in diagnostic and interventional radiology, including interventional neuroradiology, in recent years. Many intracranial vascular pathologies are being successfully managed by endovascular interventional neuroradiology techniques. These techniques include procedures like embolization of vascular tumours and arterio-venous malformations, coiling of cerebral aneurysms. etc. The support ...
Tsumoto Tomoyuki - - 2007
OBJECTIVE: The present study evaluates the effect of a novel coil with a polyvinyl alcohol (PVA) core that delivered basic fibroblast growth factor (bFGF) to aneurysms in rabbits induced by elastase. METHODS: PVA was processed to form small threads and inserted into the central core of a primary coil (PVA-core ...
Yavuz Kivilcim - - 2007
OBJECT: Stent-assisted embolization is an alternative endovascular treatment method for wide-necked intracranial aneurysms. Currently available stents have the limitations of poor radial force, difficult delivery systems, and lack of full retrievability. The authors report on their preliminary experience with the use of a new, fully retrievable, self-expanding neurovascular stent, which ...
Mansour Nassir - - 2007
BACKGROUND: This work aimed to study the outcome of endovascular (coiling and balloon occlusion) treatment in patients with aneurysmal mass effect (ophthalmoplegia due to third, fourth, or sixth CN paresis) and to compare it with the outcome of clipping (from the international literature). We looked at the outcome of endovascular ...
Taschner Christian A - - 2007
INTRODUCTION: The Guglielmi detachable coil (GDC) 360 degrees, a new complex shaped bare platinum coil, became available in Europe for aneurysm treatment in September 2005. The purpose of this study was to assess the feasibility and safety of selective embolization of intracranial aneurysms with the GDC 360 degrees in 52 ...
Vogten J Mathijs - - 2007
The authors report a case of arterial esophageal bleeding resistant to endoscopic hemostasis in a patient in critical condition after complicated gastrointestinal and pulmonary surgery. Unfit for surgery, the patient's massive hemorrhage was successfully treated with superselective coil embolization of the afferent esophageal branch of the thoracic aorta. In patients ...
Layton K F - - 2007
BACKGROUND AND PURPOSE: Remodeling balloons are used to assist in endovascular coiling of aneurysms. We evaluated our experience with balloon-assisted coiling (BAC) in an attempt to determine whether this technique increased the rate of thrombus formation or symptomatic thromboembolic complications. MATERIALS AND METHODS: In 3 years, we treated 221 patients ...
Hayashi Kentaro - - 2007
A 68-year-old woman and a 42-year-old woman presented with subarachnoid hemorrhage due to rupture of cerebral aneurysm. Both patients were treated with endovascular coil embolization. Thromboembolic complications occurred during the procedure and local thrombolysis was performed for recanalization. One patient developed massive rebleeding immediately after the procedure and the other ...
Dai D - - 2007
Histologic findings in 71 elastase-induced rabbit aneurysms embolized with platinum coils were retrospectively reviewed. Mature bone formation was found in 2 aneurysms, one with coils implanted for 3 months and the other with coils implanted for 1 year. We present the histologic findings and offer potential explanations for these observations. ...
< 3 4 5 6 7 8 9 10 11 12 13 >