Search Results
Results 251 - 300 of 1371
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Turner Raymond D - - 2008
OBJECTIVE: Paraophthalmic aneurysms may exert mass effect on the optic apparatus. Although surgical clipping and endovascular coiling of these aneurysms can be complicated by immediate postoperative visual deterioration, endovascular coil embolization has the unique risk of visual complications later (>24 h) in the perioperative period. METHODS: Six patients with a ...
Yavuz Kivilcim - - 2008
OBJECT: The WingSpan stent is a new self-expandable neurovascular stent designed for endovascular treatment of intracranial atheromatous lesions. The authors report their experience with the use of this stent for the endovascular treatment of intracranial aneurysms. METHODS: Thirty-seven patients with 40 wide-necked intracranial aneurysms were treated using the WingSpan stent. ...
Song Ha-Hun - - 2008
OBJECTIVE: The purpose of this retrospective study was to report the outcome of the endovascular treatment of eight patients with eight saccular posterior inferior cerebellar artery (PICA) aneurysms. MATERIALS AND METHODS: Over the last seven years (1999-2006), eight consecutive patients with saccular PICA aneurysms were treated by endovascular methods. Five ...
Fealey Michael E - - 2008
Hydrophilic coatings on arterial introducer sheaths reduce the frequency of spasm during cardiac catheterization. Moreover, during treatment of cerebral artery aneurysms, hydrophilic coatings on microcatheters ease their maneuverability, and polymers within embolization coils enhance neointimal fibrosis at the aneurysm neck. Foreign-body giant cell reactions can result when a polymer is ...
Shapiro M - - 2008
BACKGROUND AND PURPOSE: Concurrent temporary inflation of a nondetachable balloon in the parent artery has been reported to be useful during endovascular coiling of complex, wide-neck aneurysms, facilitating truer coil reconstruction of the native vessel. Nevertheless, there exists concern that adjunctive use of balloon assistance may lead to increased adverse ...
Luo C-B - - 2008
BACKGROUND AND PURPOSE: Coil herniation into the parent artery after detachment is an uncommon complication of embolization of the intracranial aneurysm. We report our experience with stent reconstruction of the lumen and flow of the internal carotid artery (ICA) after coil herniation during embolization for intracranial ICA aneurysms and the ...
Yu Jia-sheng - - 2008
BACKGROUND: Spontaneous direct carotid-cavernous fistula (CCF) is relatively rare and few reports have been found in the literature. The aim of this paper was to report the clinical characteristics, imaging findings and curative effect of endovascular treatment for patients with spontaneous direct CCF. METHODS: We retrospectively analyzed the clinical data ...
Vandy Frank - - 2008
To evaluate our initial experience with hypogastric artery occlusion using a nitinol vascular plug during endovascular aortic aneurysm repair (EVAR). We reviewed the records and images of 23 consecutive patients who underwent transluminal vessel occlusion of the hypogastric artery with a nitinol plug, as well as a cohort of 19 ...
Ozyer Umut - - 2008
Congenital intrahepatic arterioportal fistula (IAPF) is a rare condition and there is limited experience of transcatheter embolization. We report here the transcatheter coil embolization of an incidentally found, asymptomatic congenital IAPF in a 16-month-old patient. After demonstrating that the IAPF was fed by two branches of a dilated left hepatic ...
Klein Olivier - - 2008
In 1996, Civit et al. (Neurosurgery, 38:955-961, 1996) reported a series of eight patients whose aneurysms were clipped after previous embolization with coils. This paper highlighted the safety of this surgery in second line, with a low complication rate and a favorable outcome. The two major surgical indications were either ...
Shigematsu Tomoyoshi - - 2008
A novel technique was developed to detect coil migration to the stent interior using mask images of rotational angiography. Stent-assisted coil embolization under x-ray fluoroscopy control was simulated with a hand-made vessel model. The stent interior was observed with a rigid endoscope during coil embolization. After insertion of the coil, ...
Ferroli Paolo - - 2008
The authors demonstrate the feasibility of a new procedure to create intracranial interrupted microvascular anastomosis. Self-closing nitinol surgical clips were used for a pericallosal artery-pericallosal artery side-to-side bypass in a 52-year-old man harboring an unruptured large aneurysm located on the right A2 segment. The outflow artery was found to arise ...
Suzuki S - - 2008
The treatment of dissecting aneurysms of the vertebral artery (VA) involving the posterior inferior cerebellar artery (PICA) or presenting with hypoplasia of the contralateral VA is controversial. We describe our experience with 4 ruptured and 2 unruptured VA dissecting aneurysms and discuss the efficacy of endovascular surgery using stents. All ...
Nakamura Shinichi - - 2008
The patient was a 77-year-old man with sudden-onset chest and back pain. Computed tomography angiography (CTA) from the abdomen to the proximal thigh showed an aortic aneurysmal dissection (AAD) and a left deep femoral artery (DFA) aneurysm. The AAD was conservatively managed as there was no sign of increase. The ...
Hager Eric - - 2008
Type B dissections complicated by pain, malperfusion, or aneurysm expansion mandate surgical intervention. Success of this therapy is predicated on exclusion and thrombosis of the false lumen of the aneurysm. We report a case where cessation of flow was achieved using covered stent grafts in conjunction with coil embolization of ...
Marchan Edward M - - 2008
OBJECT: Because of high recanalization rates associated with wide-necked intracranial aneurysms treated with bare platinum coils, hydrogel coils (HydroCoil, MicroVention, Inc.) have been developed. Hydrogel coils undergo progressive expansion once exposed to the physiological environment of blood and increase overall aneurysm filling. METHODS: The authors retrospectively reviewed their series of ...
Juszkat Robert - - 2008
We report a case of a 45-year-old man who underwent endovascular treatment in the acute setting of a subarachnoid hemorrhage due to rupture of a wide-necked basilar trunk aneurysm. The patient was treated with stent implantation without coiling. A control angiographic scan obtained immediately after the procedure revealed significantly decreased ...
Ryttlefors Mats M Department of Neuroscience, Section for Neurosurgery, Uppsala University Hospital, Uppsala, Sweden. - - 2008
It is often thought that elderly patients in particular would benefit from endovascular aneurysm treatment. The aim of this analysis was therefore to compare the efficacy and safety of endovascular coiling (EVT) with neurosurgical clipping (NST) in the subgroup of elderly SAH patients in the International Subarachnoid Aneurysm Trial (ISAT). ...
Ahn Jung Yong - - 2008
''Blister-like'' aneurysms of the supraclinoid segment of the internal carotid artery are usually small and have fragile walls, necessitating special care to prevent rebleeding. These lesions are considered high-risk aneurysms because of the technical difficulties associated with their surgical and endovascular treatment. In this report, we describe the use of ...
Ooka Tomonori - - 2009
Persistent sciatic artery is a rare congenital vascular anomaly of the lower extremity. This artery is predisposed to atherosclerosis or aneurysm formation. Persistent sciatic artery aneurysm often causes limb-threatening ischemia owing to its thrombosis or its mural thrombus. We report a case of successful transcatheter coil embolization for persistent sciatic ...
Pierot Laurent - - 2008
BACKGROUND AND PURPOSE: The management of unruptured intracranial aneurysms remains controversial and the results of endovascular treatment are not precisely known because no prospective data exist. The first prospective multicenter study (ATENA) was conducted in Canada and France to determine clinical outcome and risks of this treatment. METHODS: Six hundred ...
Gonzalez Nestor - - 2008
BACKGROUND AND PURPOSE: We analyzed the impact of detailed anatomic characteristics on the results of endovascular coil embolization for anterior communicating artery (AcoA) aneurysms and developed a predictive model estimating the probability of successful endovascular treatment. METHODS: One hundred eighty-one AcoA aneurysms were treated with endovascular coil embolization between August ...
Iwata T - - 2008
A 69-year-old woman had a symptomatic cervical carotid stenosis coupled with a coincidental unruptured cerebral aneurysm in the carotid distal segment. She underwent endovascular coiling for the aneurysm and then carotid stent placement (CAS) 1 month later. Both lesions were treated successfully and neither complications nor strokes occurred after the ...
Marjamaa Johan - - 2009
BACKGROUND: Neck remnants and aneurysm recurrences are marked limitations of endovascular treatment of cerebral artery aneurysms. We compared the evolution of neck remnants of experimental arterial rat aneurysms after treatment with either platinum- or PGLA-coated coils. METHODS: We created 20 standard-size aneurysms in the abdominal aortas of male Wistar rats. ...
Ahn Jung Yong - - 2008
We report a case of a 70-year-old man harboring a wide-necked thrombosed giant aneurysm of the left middle cerebral artery (MCA) on the M1 segment. The patient presented with generalized tonic-clonic seizures. A computerized tomography scan showed a calcified aneurysmal wall with perianeurysmal swelling. The aneurysm was successfully embolized using ...
Jartti P - - 2008
BACKGROUND: Chronic hydrocephalus is a common sequela of subarachnoid hemorrhage (SAH). The technical procedure used to treat intracranial aneurysms, whether neurosurgical clipping or endovascular coiling, may lead to differences in the incidence of chronic posthemorrhagic hydrocephalus. PURPOSE: To compare the effects of early neurosurgical and early endovascular treatment on the ...
Yang Xingjian - - 2008
BACKGROUND: Giant and large intracranial aneurysms represent enormous therapeutic challenges for neurosurgeons as well as for endovascular therapists. Since they may involve entire vessels or be irregular in shape, the rate of complete obliteration with GDCs is low and the incidence of recanalization is very high. So the technique of ...
Jeong Su-Jin - - 2008
We report the findings of a patient with an asymptomatic Arc of Buhler (AOB) aneurysm, which was successfully treated by transcatheter coil embolization. An abdominal CT and angiography revealed an intact pancreaticoduodenal artery arcade (PDAA) and an anomalous communication between the SMA and celiac axis, termed an AOB. An aneurysm ...
Schaeffer Edward M - - 2008
Pelvic arteriovenous malformation (AVM) is a rare condition in which a section of blood vessels lacks a capillary network, resulting in blood from an artery being delivered directly to a vein. This condition may be congenital or acquired. Percutaneous selective embolization can obliterate AVMs and has increasingly been used for ...
Ota S 6 - - 2008
Summary: We introduced our grading system that enablesus to objectively evaluate the degree of technical difficulty of aneurysm treatment modalities, i.e. neck clipping and coil embolization.The characteristics of our grading system were that the difficulty of each treatment was indicated on a ten point scale obtained by adding the scores ...
Suzuki S - - 2008
Summary: As endovascular surgery (EVS) of symptomatic unruptured aneurysms can result in symptom exacerbation due to intra-aneurysmal thrombosis or lump formation by coils, this treatment remains controversial. We present five women ranging in age from 58 to 76 years (mean 65.6 years) who suffered post-EVS symptom exacerbation attributable to local ...
Amiridze N S - - 2008
Summary: Arteriovenous malformations (AVM) of the brain are the most common symptomatic congenital vascular malformation of the central nervous system, with significant associated morbidity and mortality. This study compared the feasibility and efficacy of treating AVMs by embolization with hydrocoils with similar treatment with bare platinum coils, using the swine ...
Sprengers M E - - 2008
BACKGROUND AND PURPOSE: The long-term fate of coiled intracranial aneurysms is largely unknown, and prolonged imaging follow-up has been advocated. The yield of follow-up imaging in coiled aneurysms adequately occluded at 6 months is unknown. In such patients, we performed time-of-flight MR angiography (MRA) to assess the incidence and therapeutic ...
Lehmann Pierre - - 2009
True carotid aneurysms with sphenoid extension and revealed by epistaxis are rare. A review of the literature shows the mortality risk of this pathology and the different therapeutic options. A 41-year-old female presented with a cavernous carotid aneurysm with sphenoid extension revealed by massive epistaxis. We propose a combined treatment ...
Downer Jonathan - - 2008
Endovascular stent placement and coil embolization have become established options in the treatment of visceral arterial aneurysms. In this article we report the case of an 83-year-old presenting with gastrointestinal hemorrhage due to a recurrent hepatic arterial aneurysm occurring 12 years after treatment with an endovascular stent. The recurrent aneurysm ...
Scott David A - - 2008
Large, symptomatic aneurysms of the cavernous internal carotid artery (ICA) can be successfully treated by a combination of aneurysm coiling and occlusion of the parent vessel. We describe the use of an Amplatzer (AGA medical corporation, Plymouth, MA, USA) detachable nitinol vascular plug to occlude the ICA in four patients ...
Brooks Nathaniel P - - 2008
OBJECT: There is little evidence addressing whether procedures requiring adjunctive devices lead to an increased frequency of thromboembolic complications. The authors report their experience with 155 aneurysms treated with and without adjunctive devices. METHODS: The authors retrospectively reviewed their last 155 aneurysm coil placement procedures. The patients' records were reviewed ...
Fanning Noel F - - 2008
OBJECT: Symptomatic local inflammation, aseptic meningitis, and hydrocephalus are reported in a group of patients treated with second generation/modified platinum coils. The purpose of this study was to define the frequency and determinants of magnetic resonance (MR) imaging findings of aneurysm wall enhancement, perianeurysmal edema, and hydrocephalus in a cohort ...
Kwak Byung Kook - - 2008
PURPOSE: To illustrate the use of superselective radiofrequency (RF) energy delivery for arterial occlusion in vessels requiring embolization. TECHNIQUE: A 3.0-F microcatheter and a 0.016-inch stainless steel microguidewire coated with polytetrafluoroethylene except for the floppy platinum-coiled tip are inserted into the diseased arteries. After positioning the microcatheter at the target ...
Marotta Thomas R - - 2008
OBJECT: The authors describe a novel device for the endovascular treatment of intracranial aneurysms, the endovascular clip system (eCLIPs). Descriptions of the device and its delivery system as well as the results of flow model tests and the treatment of experimental aneurysms are provided. METHODS: The eCLIPs comprises a flexible ...
Gross Bradley A - - 2008
The goals of microsurgical and endovascular treatment of intracranial aneurysms are to prevent subarachnoid hemorrhage and/or eliminate mass effect symptoms. Debate has raged regarding which aneurysms to treat and with which technique or combination of techniques. It is our impression that studies that have assessed aneurysm natural history and treatment ...
Kakalis Nikolaos M P - - 2008
This paper proposes a novel computational methodology for modelling the haemodynamic effects of endovascular coil embolization for cerebral aneurysms. We employ high-resolution 3-D angiographic data to reconstruct the intracranial geometry and we model the coiled part of the aneurysm as a porous medium, with porosity decreasing as coils are inserted. ...
Brisman Jonathan L - - 2008
OBJECTIVE: To study the incidence and clinical outcomes of intraoperative aneurysm rupture (IOR) during endovascular coil embolization at a single large volume center and to review the literature on this subject to determine whether IOR rupture rate and mortality correlate with volume of aneurysms treated at a given center and ...
Hsieh Cheng-Ta - - 2008
BACKGROUND: Instead of surgical intervention, endovascular treatment with GDC has become an important tool to treat intracranial aneurysm in recent years. However, intraoperative aneurysm rupture remains a devastating complication for physicians. Rapid and precise packing with coils and external ventricular drainage are advised. Stereotactic aspiration of an enlarged intracerebral hematoma ...
Park Seong-Ho - - 2008
The purpose of this study was to report the morbidity, mortality, angiographic results, and merits of elective coiling of unruptured intracranial aneurysms. Ninety-six unruptured aneurysms in 92 patients were electively treated with detachable coils. Eighty-one of these aneurysms were located in the anterior circulation, and 15 were located in the ...
Dagain A - - 2008
After endovascular coiling, several authors have reported refilling of the aneurysm, appearance of a mass effect, coils protruding into the parent artery, migration of coils into parent artery or through aneurysm wall, and compression of the parent artery by coil impaction. This is the first report of an endovascular coil ...
Irurzun Javier - - 2008
Idiopathic azygos vein aneurysms are rare and typically present as incidentally discovered mediastinal masses. Treatment is advisable when the aneurysm enlarges or is complicated by compression symptoms, rupture, or thromboembolic disease. The authors describe successful endovascular treatment of a symptomatic azygos vein aneurysm by means of embolization with coils at ...
Geyik Serdar - - 2008
INTRODUCTION: The Cerecyte coils were developed to improve long-term stability of embolized cerebral aneurysms by producing an increased fibrous reaction over the neck of the aneurysms. We report our preliminary clinical experience with mid-term follow-up. MATERIALS AND METHODS: Seventy-eight consecutive patients with 84 intracranial aneurysms treated exclusively with Cerecyte coils ...
Lubicz Boris - - 2008
INTRODUCTION: Within the neurosurgical literature on intracranial aneurysms, balloon-assisted coiling (BAC) remains controversial when compared to conventional coiling (CC). The aim of this study was to compare our results with BAC and CC over a 4-year period. METHODS: Daily interventional neuroradiology has been available since March 2004 in our institution. ...
Lim Yong Cheol - - 2008
INTRODUCTION: Coil embolization for very small aneurysms (<3 mm in maximum diameter) has been considered a technically challenging method due to increased risk of potential aneurysm perforation during the procedure. We present our observations about the structural limitations of eight types of microcatheters and three types of detachable coils, and ...
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