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Fusiform aneurysms

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https://www.readbyqxmd.com/read/28433850/surgical-resection-and-histopathological-analysis-of-a-thrombosed-giant-fusiform-mca-aneurysm-after-initial-treatment-with-a-flow-diversion-construct
#1
Jayson Sack, Vincent Cheung, Deirdre Amaro, Arvin R Wali, David R Santiago-Dieppa, J Scott Pannell, Alexander A Khalessi
BACKGROUND: We describe the histopathology of an un-ruptured, giant calcified left MCA fusiform aneurysm initially treated with endovascular flow diversion. The flow diversion construct underwent post-operative in-stent thrombosis, necessitating surgical resection of the aneurysm to eliminate mass effect. METHODS: A 75-year-old woman with a known left MCA aneurysm presented to the Emergency Department with moderate right hemibody weakness. Due to the clinical and radiographic progression of the aneurysm, the patient was offered treatment...
April 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28433386/bilateral-fusiform-aneurysms-of-the-internal-carotid-arteries-presenting-with-subarachnoid-hemorrhage
#2
Sina Jelodar, Mohammad Shirani, Amin Tavallayi, Mehdi Ketabchi, Maysam Alimohamadi
Fusiform aneurysms of cerebral arteries are less prevalent than saccular aneurysms and are rarely associated with subarachnoid hemorrhage (SAH). In this article, we report SAH due to a rare case of bilateral fusiform aneurysm of the supraclinoid segment of the internal carotid arteries (ICAs) (C4 segment of the ICA).
April 19, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28430295/multiple-cerebral-fusiform-aneurysms-involving-the-posterior-and-anterior-circulation-including-the-anterior-cerebral-artery-a-case-report
#3
Sumit Das, Tibor Valyi-Nagy
<i>Multiple fusiform aneurysms occurring in a single patient are very uncommon. Fusiform aneurysms affecting the anterior circulation are extremely rare and reported cases involve the middle cerebral artery and internal carotid artery. We report here a case of a 55-year-old African American male who had a history of multiple strokes and who was found unresponsive prior to his latest hospital admission. Neuroimaging was remarkable for multiple fusiform aneurysms involving segments of the anterior, middle and posterior cerebral arteries as well as subarachnoid and intraparenchymal hemorrhage...
2017: Folia Neuropathologica
https://www.readbyqxmd.com/read/28411708/life-threatening-pulmonary-embolism-associated-with-multiple-venous-aneurysms
#4
Shogo Sakamoto, Toru Kataoka, Tsukasa Okai, Nanao Matsusaki, Masahiko Takagi, Minoru Yoshiyama
Popliteal venous aneurysms (PVAs) are often reported as a cause of pulmonary embolism. Previous reports documented the association between a single PVA and pulmonary embolism. We experienced a rare case with multiple venous saccular and fusiform aneurysms resulting in a nearly fatal pulmonary embolism. Surgical ligation is usually considered the first-line treatment for PVAs. In our patient, however, we selected inferior vena cava filter implantation and anticoagulant therapy to avoid the phlegmasia cerulea dolens caused by ligation of multiple aneurysms in both legs...
May 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28387624/dolichoectatic-aneurysms-of-the-vertebrobasilar-system-clinical-and-radiographic-factors-that-predict-poor-outcomes
#5
David S Xu, Michael R Levitt, M Yashar S Kalani, Leonardo Rangel-Castilla, Celene B Mulholland, Isaac J Abecassis, Ryan P Morton, John D Nerva, Adnan H Siddiqui, Elad I Levy, Robert F Spetzler, Felipe C Albuquerque, Cameron G McDougall
OBJECTIVE Fusiform dolichoectatic vertebrobasilar aneurysms are rare, challenging lesions. The natural history of these lesions and medium- and long-term patient outcomes are poorly understood. The authors sought to evaluate patient prognosis after diagnosis of fusiform dolichoectatic vertebrobasilar aneurysms and to identify clinical and radiographic predictors of neurological deterioration. METHODS The authors reviewed multiple, prospectively maintained, single-provider databases at 3 large-volume cerebrovascular centers to obtain data on patients with unruptured, fusiform, basilar artery dolichoectatic aneurysms diagnosed between January 1, 2000, and January 1, 2015...
April 7, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28378026/considerations-on-the-relevance-of-cerebral-fusiform-aneurysms-observed-during-hiv-infection
#6
Bruno Law-Ye, Robert-Yves Carlier, Raphaël Richard, Raphaël Blanc, Claire Jourdan, Pierre de Truchis, Flore Viry, Didier Dormont, Delphine Leclercq, Frédéric Clarençon
Human immunodeficiency virus (HIV)-associated ectatic cerebral vasculitis (HIV-AECV) is a rare form of vasculitis with diffuse fusiform aneurysms. Its pathophysiology remains poorly understood. Although extensively described in children, it is still incompletely studied in adults. Our objective was to present five adult cases with emphasis on imaging findings and long-term evolution. From 2006 to 2014, we included 5 HIV-infected patients presenting with fusiform cerebral aneurysms. Vessels abnormalities were assessed with brain computed tomography (CT) angiography, magnetic resonance angiography (MRA) and/or digital subtraction angiography (DSA)...
April 4, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/28366302/results-of-the-valor-ii-trial-of-the-medtronic-valiant-thoracic-stent-graft
#7
Mark F Conrad, James Tuchek, Robert Freezor, Joseph Bavaria, Rodney White, Ronald Fairman
BACKGROUND: The 1-year results of endovascular exclusion of degenerative descending thoracic aortic aneurysms (DTA) with the Valiant Thoracic Stent Graft (Medtronic Vascular, Santa Rosa, Calif) have been previously reported. With long-term follow-up now complete, the 5-year results are reported. METHODS: The VALOR II trial (Evaluation of the Clinical Performance of the Valiant Thoracic Stent Graft System in the Treatment of Descending Thoracic Aneurysms of Degenerative Etiology in Subjects Who Are Candidates for Endovascular Repair) was a prospective, nonrandomized trial of the Valiant Thoracic Stent Graft system in patients with degenerative DTA...
March 30, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28357169/low-profile-visualized-intraluminal-support-junior-device-for-the-treatment-of-intracranial-aneurysms
#8
Mihir Gupta, Vincent J Cheung, Peter Abraham, Arvin R Wali, David R Santiago-Dieppa, Brandon C Gabel, Abdulrahman Almansouri, J Scott Pannell, Alexander A Khalessi
OBJECTIVE: Early case series suggest that the recently introduced Low-profile Visualized Intraluminal Support Junior (LVIS Jr.) device (MicroVention-Terumo, Inc., Tustin, CA) may be used to treat wide-necked aneurysms that would otherwise require treatment with intrasaccular devices or open surgery. We report our single-center experience utilizing LVIS Jr. to treat intracranial aneurysms involving 1.8-2.5 mm parent arteries. METHODS: We retrospectively reviewed records of patients treated with the LVIS Jr...
February 17, 2017: Curēus
https://www.readbyqxmd.com/read/28298031/analysis-of-saccular-aneurysms-in-the-barrow-ruptured-aneurysm-trial
#9
Robert F Spetzler, Joseph M Zabramski, Cameron G McDougall, Felipe C Albuquerque, Nancy K Hills, Robert C Wallace, Peter Nakaji
OBJECTIVE The Barrow Ruptured Aneurysm Trial (BRAT) is a prospective, randomized trial in which treatment with clipping was compared to treatment with coil embolization. Patients were randomized to treatment on presentation with any nontraumatic subarachnoid hemorrhage (SAH). Because all other randomized trials comparing these 2 types of treatments have been limited to saccular aneurysms, the authors analyzed the current BRAT data for this subgroup of lesions. METHODS The primary BRAT analysis included all sources of SAH: nonaneurysmal lesions; saccular, blister, fusiform, and dissecting aneurysms; and SAHs from an aneurysm associated with either an arteriovenous malformation or a fistula...
February 24, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28281190/ruptured-dissecting-aneurysms-of-the-a1-segment-of-the-anterior-cerebral-artery-three-case-reports-and-a-review-of-the-literature
#10
REVIEW
Takafumi Mitsuhara, Fusao Ikawa, Toshikazu Hidaka, Yasuharu Kurokawa, Ushio Yonezawa
Dissecting aneurysms in the anterior cerebral artery (ACA), although rare, can cause ischemic and/or hemorrhagic stroke. Hemorrhagic dissecting aneurysms in the A1 portion of the ACA are often associated with a poor prognosis. We retrospectively investigated three rare cases of hemorrhagic dissecting aneurysms in the A1 portion. Dissecting aneurysms were diagnosed by carotid angiography or computed tomography angiography to visualize morphological changes in the vessel. All patients presented with diffuse subarachnoid hemorrhage...
March 10, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28265011/tourniquet-parent-artery-occlusion-after-flow-diversion
#11
Visish M Srinivasan, Maxim Mokin, Edward A M Duckworth, Stephen Chen, Ajit Puri, Peter Kan
BACKGROUND: The Pipeline Embolization Device (PED) is increasingly used for both on- and off-label purposes for treatment of intracranial aneurysms. The device gradually slows flow of blood into the aneurysm, but the high metal coverage of PED promotes endothelialization of the device. Occasionally, this leads to in-stent stenosis that is clinically well tolerated. We present a multi-institutional Pipeline series that includes three cases of gradual asymptomatic occlusion within the PED and parent vessel...
March 6, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28220320/a-novel-method-for-non-invasively-detecting-the-severity-and-location-of-aortic-aneurysms
#12
Igor Sazonov, Ashraf W Khir, Wisam S Hacham, Etienne Boileau, Jason M Carson, Raoul van Loon, Colin Ferguson, Perumal Nithiarasu
The influence of an aortic aneurysm on blood flow waveforms is well established, but how to exploit this link for diagnostic purposes still remains challenging. This work uses a combination of experimental and computational modelling to study how aneurysms of various size affect the waveforms. Experimental studies are carried out on fusiform-type aneurysm models, and a comparison of results with those from a one-dimensional fluid-structure interaction model shows close agreement. Further mathematical analysis of these results allows the definition of several indicators that characterize the impact of an aneurysm on waveforms...
February 21, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28209313/the-arborization-bypass-sequential-intracranial-intracranial-bypasses-for-an-unruptured-fusiform-mca-aneurysm
#13
Jonathan J Russin
Revascularization techniques are being featured more prominently as endovascular treatments continue to select out complex cerebrovascular pathologies for open surgical management. The current healthcare environment requires decreased hospital stays and improved clinical outcomes despite the growing complexity of open surgical cases. Recent efforts to reduce operative room time and decrease risk for bypass surgery have focused on avoiding graft harvest and maintaining the entire bypass intracranial. The presented technique features an arborization bypass to serially anastomose the middle cerebral artery vessels allowing for proximal trapping of a complex aneurysm without graft harvest...
February 10, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28186451/techniques-and-outcomes-of-microsurgical-management-of-ruptured-and-unruptured-fusiform-cerebral-aneurysms
#14
Sam Safavi-Abbasi, M Yashar S Kalani, Ben Frock, Hai Sun, Kaan Yagmurlu, Felix Moron, Laura A Snyder, Randy J Hlubek, Joseph M Zabramski, Peter Nakaji, Robert F Spetzler
OBJECTIVE Fusiform cerebral aneurysms represent a small portion of intracranial aneurysms; differ in natural history, anatomy, and pathology; and can be difficult to treat compared with saccular aneurysms. The purpose of this study was to examine the techniques of treatment of ruptured and unruptured fusiform intracranial aneurysms and patient outcomes. METHODS In 45 patients with fusiform aneurysms, the authors retrospectively reviewed the presentation, location, and shape of the aneurysm; the microsurgical technique; the outcome at discharge and last follow-up; and the change in the aneurysm at last angiographic follow-up...
February 10, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28184349/serpentine-cavernous-aneurysm-presented-with-visual-symptoms-improved-by-endovascular-coil-trapping
#15
Myeong-Jin Oh, Dong-Seong Shin, Rady Se, Bum-Tae Kim
This report describes a case of a serpentine fusiform aneurysm of the internal carotid artery in a patient who presented with visual disturbances. The serpentine aneurysm was treated successfully by coil trapping and occlusion of the parent artery, accompanied by balloon dilation. Nine months post-operatively, the patient's visual acuity had improved considerably.
December 2016: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/28168068/treatment-challenges-of-a-primary-vertebral-artery-aneurysm-causing-recurrent-ischemic-strokes
#16
Davide Strambo, Luca Peruzzotti-Jametti, Aurora Semerano, Giovanna Fanelli, Franco Simionato, Roberto Chiesa, Enrico Rinaldi, Vittorio Martinelli, Giancarlo Comi, Marco Bacigaluppi, Maria Sessa
Background. Extracranial vertebral artery aneurysms are a rare cause of embolic stroke; surgical and endovascular therapy options are debated and long-term complication may occur. Case Report. A 53-year-old man affected by neurofibromatosis type 1 (NF1) came to our attention for recurrent vertebrobasilar embolic strokes, caused by a primary giant, partially thrombosed, fusiform aneurysm of the left extracranial vertebral artery. The aneurysm was treated by endovascular approach through deposition of Guglielmi Detachable Coils in the proximal segment of the left vertebral artery...
2017: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/28161919/cysts-of-the-iris-pigment-epithelium-what-is-new-and-interesting-the-2016-jose-rizal-international-medal-lecture
#17
REVIEW
Jerry A Shields, Carol L Shields
PURPOSE: Cysts of the iris pigment epithelium (IPE) can involve the pupillary margin, midzone, or peripheral location or can be free-floating in the aqueous or vitreous or lodged in the anterior chamber angle. Avariant of IPE cyst, known as iris flocculi, can be a marker for systemic thoracic aneurysm. DESIGN: Review of IPE cysts and description of new observations of the lesions. METHODS: Review of IPE cysts. RESULTS: Lesions in 672 eyes were classified as of the pupillary margin (n = 49; 7%), midzone (n = 188; 28%), peripheral (n = 424; 63%), or dislodged/free-floating (n = 11; 2%)...
January 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28144776/partial-wrap-clipping-of-the-entrance-of-the-pseudolumen-of-a-fusiform-aneurysm-in-the-posterior-inferior-cerebellar-artery-a-technical-note
#18
Yasushi Motoyama, Yoshiaki Takamura, Shuichi Yamada, Young-Su Park, Hiroyuki Nakase
BACKGROUND: Fusiform aneurysms in the posterior inferior cerebellar artery (PICA) are rare and challenging to treat. Surgical treatment options for a fusiform aneurysm in the PICA include trapping with/without bypass and wrap-clipping, when elimination of the pathological wall from the systemic circulation and prevention of perforator injury are important. In addition, lower cranial nerve impairment due to surgical manipulation should also be avoided. METHOD: A fusiform-shaped aneurysm was found in a proximal part of the PICA by magnetic resonance angiography undertaken for evaluation of repeated vertigo in a 36-year-old man...
May 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28118952/the-only-case-of-mycotic-aneurysm-of-the-pica-clinical-radiological-remarks-and-review-of-literature
#19
Manolo Piccirilli, Emiliano Prizio, Delia Cannizzaro, Maria Pia Tropeano, Giulio Guidetti, Antonio Santoro
We present the first and only case, reported in literature, of a 67-years-old man with a mycotic aneurysm (MA) of the left posterior inferior cerebellar artery (PICA), caused by group B Streptococcus, that we surgically treated, performing neck aneurysm clipping, preserving patency of parent vessel. Moreover the peculiarity of this case is represented by the fact that the MA is originated from a tooth abscess, treated about two years before. To date, there have been only 10 cases of association between MA with either tooth pathologies or dental surgical procedures and our case is the only one originating from PICA...
April 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28104636/fred-flow-diverter-a-study-on-safety-and-efficacy-in-a-consecutive-group-of-50-patients
#20
H Luecking, T Engelhorn, S Lang, P Goelitz, S Kloska, K Roessler, A Doerfler
BACKGROUND AND PURPOSE: Endovascular flow diverters are increasingly used for the treatment of cerebral aneurysms. We assessed the safety and efficacy of the Flow-Redirection Endoluminal Device (FRED) in a consecutive series of 50 patients. MATERIALS AND METHODS: Inclusion criteria were wide-neck, blister-like, or fusiform/dissecting aneurysms independent of size, treated with the FRED between February 2014 and May 2015. Assessment criteria were aneurysm occlusion, manifest ischemic stroke, bleeding, or death...
January 19, 2017: AJNR. American Journal of Neuroradiology
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