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Carotid Aneurysm

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https://www.readbyqxmd.com/read/27908815/regional-variation-in-postoperative-myocardial-infarction-in-patients-undergoing-vascular-surgery-in-the-united-states
#1
Andrea M Steely, Peter W Callas, Daniel Neal, Salvatore T Scali, Philip P Goodney, Andres Schanzer, Jack L Cronenwett, Daniel J Bertges
OBJECTIVE: To assess for regional variation in the incidence of postoperative myocardial infarction (POMI) following non-emergent vascular surgery across the United States in order to identify potential areas for quality improvement initiatives. METHODS: We evaluated POMI rates across 17 regional Vascular Quality Initiative (VQI) groups comprised of 243 centers with 1,343 surgeons who performed 75,057 vascular operations from 2010-2014. Four procedures were included in the analysis: carotid endarterectomy (CEA, n=39,118), endovascular abdominal aortic aneurysm (AAA) repair (EVAR, n=15,106), infra-inguinal bypass (INFRA, n=17,176), and open infra-renal AAA repair (OAAA, n=3,657)...
November 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27907932/posttraumatic-cavernous-segment-internal-carotid-artery-aneurysmal-rupture-presenting-as-tentorial-subdural-hematoma
#2
Syamala Shunmugam, Thas Emmanuel, Shyam Duvuru
Traumatic aneurysm rupture following a closed head injury is rare. The rupture of a cavernous internal carotid artery (ICA) aneurysm following a head injury presenting as a tentorial subdural hematoma has not been reported in the literature. We discuss a 50-year-old woman with a closed head injury with her initial computed tomography scan showing a tentorial subdural hematoma. Further investigations revealed the presence of a ruptured cavernous ICA aneurysm. We also conducted a literature review of posttraumatic ICA aneurysmal rupture...
December 1, 2016: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/27906849/carotid-artery-aneurysm-a-rare-cause-of-hemotympanum
#3
Selçuk Güneş, Zahide Mine Yazici, Hakan Selçuk, Baver Masallah Şimşek, Mustafa Çelik, Fatma Tülin Kayhan
Temporal bone fractures can occur as a result of various head trauma. The most common cause of the hemotympanum is traumatic temporal bone fracture. Facial paralysis and hearing loss can be seen associated with temporal bone fracture. The development of the internal carotid artery aneurysm after temporal bone fracture is extremely rare. In this article, the authors evaluated carotid artery aneurysm that developed after temporal fracture and aneurism compressed by coagulated blood mass which showed itself as a hemotympanum...
November 30, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27904445/endovascular-treatment-of-unruptured-aneurysms-of-cavernous-and-ophthalmic-segment-of-internal-carotid-artery-with-flow-diverter-device-pipeline
#4
Marko Jevsek, Charbel Mounayer, Tomaz Seruga
BACKGROUND: Intra-arterial treatment of aneurysms by redirecting blood flow is a newer method. The redirection is based on a significantly more densely braided wire stent. The stent wall keeps the blood in the lumen of the stent and slows down the turbulent flow in the aneurysms. Stagnation of blood in the aneurysm sac leads to the formation of thrombus and subsequent exclusion of the aneurysm from the circulation. The aim of the study was to evaluate flow diverter device Pipeline for broad neck and giant aneurysm treatment...
December 1, 2016: Radiology and Oncology
https://www.readbyqxmd.com/read/27903469/determinants-of-follow-up-failure-in-patients-undergoing-vascular-surgery-procedures
#5
Dejah R Judelson, Jessica P Simons, Julie M Flahive, Virendra I Patel, Christopher T Healey, Brian W Nolan, Daniel J Bertges, Andres Schanzer
OBJECTIVE: The Vascular Study Group of New England (VSGNE) requires documentation of follow-up for >80% of patients at least 9 months post-procedure. However, many participating groups fall short of this goal. We sought to identify factors independently associated with loss to long-term follow-up (LTF). METHODS: The VSGNE was queried from 2008-2012, for all carotid endarterectomy (CEA), endovascular aneurysm repair (EVAR), open abdominal aortic aneurysm repair (OPEN), infrainguinal bypass (INFRA), and suprainguinal bypass (SUPRA) procedures in patients who survived greater than 9 months post-procedure...
November 26, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27895519/portal-hypertension-an-uncommon-clinical-manifestation-of-takayasu-arteritis-in-a-9-year-old-child
#6
Cristina N Herrera, Javier E Tomala-Haz
Takayasu arteritis (TA) is the third most common childhood vasculitis and its clinical manifestations depend on the arteries involved. We report a case of a 9-year-old boy with multiple aneurysms in carotid and iliac arteries, subclavian and coronary arteries, and abdominal aorta. At the age of 7 years, he presented with recurrent fever and hepatosplenomegaly. An angio-computed tomography scan showed aneurysms in the left subclavian artery, abdominal aorta, and both proximal iliac arteries. He was diagnosed with TA and was treated with corticosteroids, aspirin, and enalapril...
2016: Open Access Rheumatology: Research and Reviews
https://www.readbyqxmd.com/read/27888087/coiling-of-a-ruptured-large-internal-carotid-aneurysm-via-extracranial-intracranial-saphenous-vein-bypass-graft-just-after-proximal-ligation-of-the-internal-carotid-artery
#7
Hayato Tajima, Yoshio Araki, Takashi Izumi, Masahiro Nishihori, Sho Okamoto, Toshihiko Wakabayashi
BACKGROUND: Direct and endovascular combined surgery has been performed to treat large to giant internal carotid artery (ICA) aneurysms. This report describes successful treatment of the large ICA aneurysm by coiling of the aneurysm via extracranial-intracranial (EC-IC) saphenous vein graft (SVG) just after bypass and ICA proximal ligation. CASE DESCRIPTION: A 66-year-old woman presented with left ICA supraclinoid aneurysm with progressive visual field defect and impaired visual acuity in the left eye...
November 22, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27885318/multiscale-opening-of-conjoined-fuzzy-objects-theory-and-applications
#8
Punam K Saha, Subhadip Basu, Eric A Hoffman
Theoretical properties of a multi-scale opening (MSO) algorithm for two conjoined fuzzy objects are established, and its extension to separating two conjoined fuzzy objects with different intensity properties is introduced. Also, its applications to artery/vein (A/V) separation in pulmonary CT imaging and carotid vessel segmentation in CT angiograms (CTAs) of patients with intracranial aneurysms are presented. The new algorithm accounts for distinct intensity properties of individual conjoined objects by combining fuzzy distance transform (FDT), a morphologic feature, with fuzzy connectivity, a topologic feature...
October 2016: IEEE Transactions on Fuzzy Systems: a Publication of the IEEE Neural Networks Council
https://www.readbyqxmd.com/read/27884881/testing-stenting-and-flow-diversion-using-a-surgical-elastase-induced-complex-fusiform-aneurysm-model
#9
R Fahed, T E Darsaut, I Salazkin, J-C Gentric, M Mazighi, J Raymond
BACKGROUND AND PURPOSE: Rabbit elastase-induced saccular aneurysms have been commonly used for preclinical testing of endovascular devices, including flow diverters. However, all tested devices have been shown to be capable of aneurysm occlusion with this model. We aimed to create a more challenging model to test and discriminate among neurovascular devices of varying efficacies. MATERIALS AND METHODS: With a surgical approach that included elastase infusion and balloon dilation, we attempted the creation of complex fusiform aneurysms in 16 rabbits, with standard saccular carotid aneurysms created in 15 other animals...
November 24, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27884774/esponsive-multifunctional-drug-delivery-nanoparticles-for-elastic-matrix-regenerative-repair
#10
Balakrishnan Sivaraman, Ganesh Swaminathan, Lee Moore, Jonathan Fox, Dhruv Seshadri, Shataakshi Dahal, Ivan Stoilov, Maciej Zborowski, Robert Mecham, Anand Ramamurthi
: Arresting or regressing growth of abdominal aortic aneurysms (AAAs), localized expansions of the abdominal aorta are contingent on inhibiting chronically overexpressed matrix metalloproteases (MMPs)-2 and -9 that disrupt elastic matrix within the aortic wall, concurrent with providing a stimulus to augmenting inherently poor auto-regeneration of these matrix structures. In a recent study we demonstrated that localized, controlled and sustained delivery of doxycycline (DOX; a tetracycline-based antibiotic) from poly(lactic-co-glycolic acid) nanoparticles (PLGA NPs), enhances elastic matrix deposition and MMP-inhibition at a fraction of the therapeutically effective oral dose...
November 21, 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27876661/fusion-three-dimensional-angiography-of-both-internal-carotid-arteries-in-the-evaluation-of-anterior-communicating-artery-aneurysms
#11
Kuhyun Yang, Hae-Won Koo, Wonhyoung Park, Jin Su Kim, Choong Gon Choi, Jung Cheol Park, Jae Sung Ahn, Do Hoon Kwon, Byung Duk Kwun, Deok Hee Lee
BACKGROUND: To determine whether 'fusion 3D angiography' of both internal carotid arteries (ICAs) can better disclose vascular details in patients diagnosed with anterior communicating artery (ACoA) aneurysms by computed tomography angiography (CTA) or magnetic resonance angiography (MRA). METHODS: Thirty-eight patients diagnosed with ACoA aneurysms by CTA or MRA were evaluated by the new post-processing feature, fusion 3D angiography, with results individually interpreted by four experts...
November 19, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27873227/the-relationship-between-aortic-root-size-and-hypertension-an-unsolved-conundrum
#12
Giuseppe Mulè, Emilio Nardi, Massimiliano Morreale, Antonella Castiglia, Giulio Geraci, Dario Altieri, Valentina Cacciatore, Margherita Schillaci, Francesco Vaccaro, Santina Cottone
Thoracic aortic aneurysms rupture and dissection are among the most devastating vascular diseases, being characterized by elevated mortality, despite improvements in diagnostic imaging and surgical techniques.An increased aortic root diameter (ARD) represents the main risk factor for thoracic aortic dissection and rupture and for aortic valve regurgitation.Even though arterial hypertension is commonly regarded as a predisposing condition for the development of thoracic aorta aneurysms, the role of blood pressure (BP) as determinant of aortic root enlargement is still controversial...
November 22, 2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27869217/magnesium-alloy-covered-stent-for-treatment-of-a-lateral-aneurysm-model-in-rabbit-common-carotid-artery-an-in-vivo-study
#13
Wu Wang, Yong-Li Wang, Mo Chen, Liang Chen, Jian Zhang, Yong-Dong Li, Ming-Hua Li, Guang-Yin Yuan
Magnesium alloy covered stents have rarely been used in the common carotid artery (CCA). We evaluated the long-term efficacy of magnesium alloy covered stents in a lateral aneurysm model in rabbit CCA. Magnesium alloy covered stents (group A, n = 7) or Willis covered stents (group B, n = 5) were inserted in 12 New Zealand White rabbits and they were followed up for 12 months. The long-term feasibility for aneurysm occlusion was studied through angiograms; the changes in vessel area and lumen area were assessed with IVUS...
November 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27865695/fusiform-left-carotid-ophthalmic-artery-aneurysm-presenting-with-central-retinal-artery-occlusion
#14
Rima M Dafer, John H Pula, Shakeel Chowdhry
Central retinal artery occlusion (CRAO) is a devastating ocular emergency characterized by acute painless visual loss in the ipsilateral eye. We describe the case of acute non-arteritic CRAO associated fusiform internal carotid-ophthalmic artery aneurysm with intraluminal thrombus. Despite the rarity of this condition, we suggest that carotid-ophthalmic artery aneurysm should be included in the differential diagnosis of CRAO.
November 16, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27864523/carotid-artery-web-and-ischemic-stroke-a-case-control-study
#15
Jonathan M Coutinho, Sheldon Derkatch, Alphonse R J Potvin, George Tomlinson, Leanne K Casaubon, Frank L Silver, Daniel M Mandell
OBJECTIVE: To determine whether there is an association between carotid artery web and ischemic stroke. METHODS: This was a single-center, age- and sex-matched, case-control study. Cases were consecutive patients with anterior circulation ischemic stroke of undetermined etiology (Trial of Org 10172 in Acute Stroke Treatment [TOAST] classification). Controls were consecutive patients with cerebral aneurysms, arteriovenous malformations, or primary intracerebral hemorrhages...
November 18, 2016: Neurology
https://www.readbyqxmd.com/read/27861392/endovascular-stenting-for-extracranial-carotid-artery-aneurysms-experiences-and-mid-term-results
#16
Leng Ni, Zuo Pu, Rong Zeng, Rui Zhang, Yue-Hong Zheng, Wei Ye, Chang-Wei Liu
The aim of this study was to investigate the safety and effectiveness of endovascular stenting for extracranial carotid artery aneurysms (ECAAs) and evaluate the mid-term outcomes.Twelve consecutive symptomatic patients (mean age 43.8 ± 14.9 years; 8 men) with ECAAs who were treated with endovascular stenting between 1997 and 2015 were retrospectively analyzed. Clinical follow-up data including symptoms and neurological events were obtained from outpatient records. Imaging follow-up with duplex ultrasound and/or computed tomographic angiography (CTA) was performed to examine the aneurysm obliteration and patency of the stents at 3, 6, 12 months and yearly thereafter...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27858574/quantitative-anatomical-analysis-and-clinical-experience-with-mini-pterional-and-mini-orbitozygomatic-approaches-for-intracranial-aneurysm-surgery
#17
Kaan Yagmurlu, Sam Safavi-Abbasi, Evgenii Belykh, M Yashar S Kalani, Peter Nakaji, Albert L Rhoton, Robert F Spetzler, Mark C Preul
OBJECTIVE The aim of this investigation was to modify the mini-pterional and mini-orbitozygomatic (mini-OZ) approaches in order to reduce the amount of tissue traumatization caused and to compare the use of the 2 approaches in the removal of circle of Willis aneurysms based on the authors' clinical experience and quantitative analysis. METHODS Three formalin-fixed adult cadaveric heads injected with colored silicone were examined. Surgical freedom and angle of attack of the mini-pterional and mini-OZ approaches were measured at 9 anatomical points, and the measurements were compared...
November 18, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27857875/dual-endoscopic-endonasal-transsphenoidal-and-precaruncular-transorbital-approaches-for-clipping-of-the-cavernous-carotid-artery-a-cadaveric-simulation
#18
Jeremy Ciporen, Brandon Lucke-Wold, Aclan Dogan, Justin S Cetas, William E Cameron
Background Endoscopic skull base approaches are being used to address complicated neurovascular pathology. These approaches are safest when proximal vascular control of the cavernous carotid artery (CavCA) can be obtained. Methods We present a cadaver-based anatomic simulation study showing the feasibility of clip placement for the CavCA as it courses through the cavernous sinus. The arterial vessels were injected with red microfil (Flow Tech, Carver, Massachusetts) to enhance visibility. The endoscope was directed through a precaruncular transorbital approach and instrumentation was managed through an endonasal transsphenoidal approach...
December 2016: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/27856649/the-barrel-stent-new-treatment-option-for-stent-assisted-coiling-of-wide-necked-bifurcation-aneurysms-results-of-a-single-center-study
#19
Ruben Mühl-Benninghaus, Andreas Simgen, Wolfgang Reith, Umut Yilmaz
PURPOSE: The Barrel stent is a laser cut stent designed for stent-assisted coil embolization of wide-necked bifurcation or branch aneurysms with a single device, with the purpose of lowering the metal-to-artery ratio and its inherent risk of thromboembolic complications of multiple stents. We report our early experiences with this device in 17 patients in this retrospective single-center analysis. MATERIALS AND METHODS: 17 consecutive patients who underwent stent-assisted coil embolization of wide-necked bifurcation aneurysms with the Barrel stent were retrospectively identified...
November 17, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27848082/quantitative-analysis-of-the-trajectory-of-simulated-basilar-apex-aneurysms-through-the-internal-carotid-artery-to-assess-the-need-for-an-orbitozygomatic-approach
#20
Yasushi Motoyama, Yasuo Hironaka, Fumihiko Nishimura, Pritam Gurung, Ryota Sasaki, Yasuhiro Takeshima, Ryosuke Matsuda, Kentaro Tamura, Ichiro Nakagawa, Young-Su Park, Hiroyuki Nakase
BACKGROUND: The aim of this study was to identify the correlation between the location of the internal carotid artery (ICA) and the need for an orbitozygomatic approach (OZA) when approaching a basilar apex (BX) aneurysm. MATERIALS AND METHODS: By imaging the virtual trajectory to access the basilar artery (BA) through the ICA, the correlations among the height of the BX, the height and lateral breadth of the bifurcation of the ICA, and the need for removal of the orbital rim or zygomatic arch were investigated using three-dimensional computed tomography angiography (3DCTA) data of approximately 80 random samples not limited to BX aneurysms...
November 15, 2016: Acta Neurochirurgica
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