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Temporal arteriitis

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https://www.readbyqxmd.com/read/28937523/cytomegalovirus-retinitis-associated-with-occlusive-vasculopathy-in-an-elderly-human-immunodeficiency-virus-negative-man
#1
Kareem Moussa, Thuy Doan, Jay M Stewart, Jessica Shantha, John Gonzales, Nisha Acharya, Emmett T Cunningham
PURPOSE: To present a case of cytomegalovirus (CMV) retinitis associated with occlusive vasculopathy presenting as sudden unilateral loss of vision in a human immunodeficiency virus-negative elderly man. METHODS: Clinical case report and literature review. RESULTS: An 84-year-old Chinese man with diabetes mellitus and primary open-angle glaucoma was seen in consultation by our uveitis service for evaluation of sudden vision loss in the right eye...
September 20, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28937415/biomarkers-in-vasculitis
#2
Gulen Hatemi, Sinem N Esatoglu, Yusuf Yazici
PURPOSE OF REVIEW: Biomarkers are considered to be helpful in diagnosing, monitoring, predicting treatment response, and prognosis in clinical practice and as outcomes in clinical trials. In this article, we review the recent literature on new biomarkers and the expanding use of older ones in vasculitic conditions. RECENT FINDINGS: In antineutrophil cytoplasmic antibody-associated vasculitis patients antineutrophil cytoplasmic antibody type may be useful as a predictor of relapse and response to rituximab...
September 21, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28937325/revascularization-of-the-upper-posterior-circulation-with-the-anterior-temporal-artery-an-anatomical-feasibility-study
#3
Ali Tayebi Meybodi, Michael T Lawton, Dylan Griswold, Pooneh Mokhtari, Andre Payman, Halima Tabani, Sonia Yousef, Arnau Benet
OBJECTIVE In various disease processes, including unclippable aneurysms, a bypass to the upper posterior circulation (UPC) including the superior cerebellar artery (SCA) and posterior cerebral artery (PCA) may be needed. Various revascularization options exist, but the role of intracranial (IC) donors has not been scrutinized. The objective of this study was to evaluate the anatomical feasibility of utilizing the anterior temporal artery (ATA) for revascularization of the UPC. METHODS ATA-SCA and ATA-PCA bypasses were performed on 14 cadaver specimens...
September 22, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28936085/twin-middle-cerebral-artery-with-aneurysm-a-variant-of-early-bifurcation-or-a-discrete-entity
#4
Sushant Sahoo, Sunil Singh, Anit Parihar
The middle cerebral artery (MCA) usually bifurcates into a superior or frontal and inferior or temporal branch. However, it may have various branching pattern, and there may be additional arteries from the anterior circulation supplying its territory. The majority of them remain asymptomatic. Some cases may have aneurismal dilatation due to turbulent blood flow or the weak arterial wall. The surgical approach in these cases may be challenging due to complex anatomical pattern of MCA. In this report, we have described a distinct pattern of left MCA with an aneurysm which was not clear in computed tomography angiogram and further confirmed on digital subtraction angiography...
August 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28935424/temporal-remodeling-of-pial-collaterals-and-functional-deficits-in-a-murine-model-of-ischemic-stroke
#5
Benjamin Okyere, Miranda Creasey, Yeonwoo Lebovitz, Michelle H Theus
BACKGROUND: Leptomeningeal anastomoses play a critical role in regulating reperfusion following cerebrovascular obstruction; however, methods to evaluate their temporospatial remodeling remains under investigation. NEW METHOD: We combined arteriole-specific vessel painting with histological evaluation to assess the density and diameter of inter-collateral vessels between the middle cerebral artery and anterior cerebral artery (MCA-ACA) or posterior cerebral artery (MCA-PCA) in a murine model of permanent middle cerebral artery occlusion (pMCAO)...
September 18, 2017: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/28934719/exposure-to-road-railway-and-aircraft-noise-and-arterial-stiffness-in-the-sapaldia-study-annual-average-noise-levels-and-temporal-noise-characteristics
#6
Maria Foraster, Ikenna C Eze, Emmanuel Schaffner, Danielle Vienneau, Harris Héritier, Simon Endes, Franziska Rudzik, Laurie Thiesse, Reto Pieren, Christian Schindler, Arno Schmidt-Trucksäss, Mark Brink, Christian Cajochen, Jean Marc Wunderli, Martin Röösli, Nicole Probst-Hensch
BACKGROUND: The impact of different transportation noise sources and noise environments on arterial stiffness remains unknown. OBJECTIVES: We evaluated the association between residential outdoor exposure to annual average road, railway, and aircraft noise levels, total noise intermittency (IR), and total number of noise events (NE) and brachial-ankle pulse wave velocity (baPWV) following a cross-sectional design. METHODS: We measured baPWV (meters/second) in 2,775 participants (49-81 y old) at the second follow-up (2010-2011) of the Swiss Cohort Study on Air Pollution and Lung and Heart Diseases in Adults (SAPALDIA)...
September 7, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28930931/multiple-concomitant-traumatic-pseudoaneurysms-of-the-superficial-temporal-artery
#7
Doga Gurkanlar, Sevda Lafci Fahrioğlu
The authors present a case with a 22-year-old man suffering from a 2 pseudoaneurysms at the temporal region following trauma. The second pseudoaneurysm was diagnosed through an astute use of digital subtraction angiography along with ultrasound to the right external carotid artery which was preferred due to the presence of a vascular pathology at the region of the trauma. During surgery, the distal and proximal ends of both aneurysms were ligated and resected. The concomitant pseudoaneurysms and the use of digital subtraction angiography should be kept in mind in such trauma patients to prevent additional surgical interventions...
September 19, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28927219/internal-maxillary-artery-to-m2-middle-cerebral-artery-bypass-with-modified-superficial-temporal-artery-graft-3-dimensional-operative-video
#8
Arnau Benet, Ali Tayebi Meybodi, Xuequan Feng, Michael T Lawton
No abstract text is available yet for this article.
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28927217/surgical-technique-for-high-flow-internal-maxillary-artery-to-middle-cerebral-artery-bypass-using-a-superficial-temporal-artery-interposition-graft
#9
Xuequan Feng, Ali Tayebi Meybodi, Jordina Rincon-Torroella, Ivan H El-Sayed, Michael T Lawton, Arnau Benet
BACKGROUND: Extracranial-to-intracranial high-flow bypass often requires cranial, cervical, and graft site incisions. The internal maxillary artery (IMA) has been proposed as a donor to decrease invasiveness, but its length is insufficient for direct intracranial bypass. We report interposition of a superficial temporal artery (STA) graft for high-flow IMA to middle cerebral artery (MCA) bypass using a middle fossa approach. OBJECTIVE: To assess the feasibility of an IMA-STA graft-MCA bypass using a new middle fossa approach...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28927214/direct-anastomosis-using-occipital-artery-for-additional-revascularization-in-moyamoya-disease-after-combined-superficial-temporal-artery-middle-cerebral-artery-and-indirect-bypass
#10
Ken Kazumata, Hiroyasu Kamiyama, Hisayasu Saito, Katsuhiko Maruichi, Masaki Ito, Haruto Uchino, Naoki Nakayama, Satoshi Kuroda, Kiyohiro Houkin
BACKGROUND: The posterior cerebral artery (PCA) is involved in approximately 30% of moyamoya disease (MMD) cases. However, there have been insufficient reports describing revascularization techniques in the posterior portion of the brain, particularly of direct anastomosis. OBJECTIVE: To perform a technical assessment in patients with MMD who underwent either occipital artery (OA)-PCA bypass or OA-middle cerebral artery (MCA) bypass. METHODS: A total of 428 revascularization procedures in 368 patients were retrospectively assessed by reviewing clinical charts and radiological data...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28923584/seeing-the-difference-painless-progressive-vision-loss-in-a-vasculopath
#11
Jenny L Lauschke, Katherine Masselos, Jennifer Sandbach, Clare L Fraser
A 78-year-old Caucasian man with significant vascular disease reported sudden onset of worsened vision during a routine wound-care appointment for non-healing necrotic leg ulcers. He described painless blurring of vision with grey scotomas in his RE, his only well-seeing eye, following trauma to the LE as a child. He presented with retinal ischemia, a cotton-wool spot and optic nerve swelling. Temporal artery biopsy showed myxoid degeneration and extensive calcium deposition which also was shown on imaging throughout his carotid and vertebral arterial system, the clinical picture of calciphylaxis...
September 15, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28923299/masson-s-tumor-revealed-by-an-intracerebral-hematoma-case-report-and-a-review-of-the-literature
#12
C Salaud, D Loussouarn, K Buffenoir, T Riem
We report the case of a 56-year-old woman who underwent total resection of a Masson's tumor or intravascular papillary endothelial hyperplasia (IPEH), which was discovered due to a left temporal intracerebral hematoma revealed by aphasia. IPEH is more often localized on cutaneous and subcutaneous locations, intracranial IPEH are rare and only approximately twenty cases have been published to date. These tumors are a benign vascular lesion composed of papillary intravascular proliferation of epithelial cellular associated thrombosis with fibrin deposits responsible for vascular lumen obliteration...
September 15, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28922885/patient-selection-and-clinical-efficacy-of-urgent-superficial-temporal-artery-middle-cerebral-artery-bypass-in-acute-ischemic-stroke-using-advanced-magnetic-resonance-imaging-techniques
#13
Hyun-Seok Park, Sang-Hyeon Kim, Hyun-Wook Nah, Jae-Hyung Choi, Dae-Hyun Kim, Myong-Jin Kang, Jae-Kwan Cha, Jae-Taeck Huh
BACKGROUND: Selected patients with acute ischemic stroke might benefit from superficial temporal artery-middle cerebral artery (STA-MCA) bypass, but the indications for urgent STA-MCA bypass are unknown. OBJECTIVE: To report our experiences of urgent STA-MCA bypass in patients requiring urgent reperfusion who were ineligible for other reperfusion therapies, using advanced magnetic resonance imaging (MRI) techniques. METHODS: The inclusion criteria for urgent STA-MCA bypass were as follows: acute infarct volume <70 mL with a ratio of perfusion/diffusion lesion volume ≥1...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28918953/-superficial-temporal-artery-pseudoaneurysm-2-cases
#14
D Lebas, P Modiano, T Wiart
BACKGROUND: Pseudoaneurysm of the superficial temporal artery causes tumefaction in the temporal region. Herein, we report two cases. PATIENTS AND METHODS: Case 1 : a 32-year-old man presented with a slightly pulsatile nodular formation measuring 2 cm in the right temporal region that had appeared nine months after traumatic injury. A diagnosis of superficial temporal artery pseudoaneurysm was considered. Excision was performed with ligation of the afferent and efferent artery...
September 14, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28918255/microglia-mediated-baff-baffr-ligation-promotes-neuronal-survival-in-brain-ischemia-injury
#15
Kai Li, Wei Yu, Rangjuan Cao, Zhihua Zhu, Guoqing Zhao
The innate immune responses of brain to vascular occlusion are primarily orchestrated by activated microglia. However, the roles of microglia in inflammatory responses to brain ischemic injuries are controversial. Here, we report a new mechanism by which microglia confer protective effects on ischemic neuronal cells. We found that under ischemic condition, the B-cell activating factor (BAFF) was vastly upregulated in microglia and this upregulation could at least be attributed to JAK-STAT signaling pathway activated by IFN-γ and IL-10, which were spatio-temporally enriched in I/R injured brain as well...
September 13, 2017: Neuroscience
https://www.readbyqxmd.com/read/28917119/a-mechanistic-model-for-drug-release-from-plga-based-drug-eluting-stent-a-computational-study
#16
Jahed Naghipoor, Timon Rabczuk
Atherosclerosis in the coronary artery is one of the leading causes of death in the world. The stenting as a minimally invasive technique was considered as an effective tool to reduce the severity of atherosclerotic stenosis. In-stent restenosis is the main drawback of the stenting in the coronary artery. Understanding the mechanism of drug release from drug-eluting stents and drug uptake in the arterial wall and obtaining more information about their functionality using mathematical modeling and numerical simulation, could be considered as a predictive tool to investigate in-stent restenosis growth which is experimentally expensive to study...
September 8, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28916549/positron-emission-tomography-computerized-tomography-in-newly-diagnosed-patients-with-giant-cell-arteritis-who-are-taking-glucocorticoids
#17
Alison H Clifford, Elana M Murphy, Steven C Burrell, Mathew P Bligh, Ryan F MacDougall, J Godfrey Heathcote, Mathieu C Castonguay, Min S Lee, Kara Matheson, John G Hanly
OBJECTIVE: Large vessel uptake on positron emission tomography/computerized tomography (PET/CT) supports the diagnosis of giant cell arteritis (GCA). Its value, however, in patients without arteritis on temporal artery biopsy and in those receiving glucocorticoids remains unknown. We compared PET/CT results in GCA patients with positive (TAB+) and negative temporal artery biopsies (TAB-), and controls. METHODS: Patients with new clinically diagnosed GCA starting treatment with glucocorticoids underwent temporal artery biopsy and PET/CT...
September 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28914135/hemodynamic-and-anatomic-predictors-of-renovisceral-stent-graft-occlusion-following-chimney-endovascular-repair-of-juxtarenal-aortic-aneurysms
#18
Rosamaria Tricarico, Yong He, Liza Laquian, Salvatore T Scali, Roger Tran-Son-Tay, Adam W Beck, Scott A Berceli
PURPOSE: To identify anatomic and hemodynamic changes associated with impending visceral chimney stent-graft occlusion after endovascular aneurysm repair (EVAR) with the chimney technique (chEVAR). METHODS: A retrospective evaluation was performed of computed tomography scans from 41 patients who underwent juxtarenal chEVAR from 2008 to 2012 to identify stent-grafts demonstrating conformational changes following initial placement. Six subjects (mean age 74 years; 3 men) were selected for detailed reconstruction and computational hemodynamic analysis; 4 had at least 1 occluded chimney stent-graft...
September 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28906126/isolated-cortical-vasogenic-edema-and-hyperintense-vessel-signs-may-be-early-features-of-reversible-cerebral-vasoconstriction-syndrome-case-reports
#19
Sho Murase, Yasufumi Gon, Akihiro Watanabe, Kenichi Todo, Nobuo Kohara, Hideki Mochizuki, Manabu Sakaguchi
Background The temporal and anatomical features of vasoconstriction in patients with reversible cerebral vasoconstriction syndrome within hours after symptom onset, in the hyperacute phase, are unclear. Case result Herein we report the cases of two patients with acute severe headache who were diagnosed with reversible cerebral vasoconstriction syndrome. Magnetic resonance imaging within hours after symptom onset revealed multiple areas of isolated cortical vasogenic edema and hyperintense vessel signs of the distal cerebral arteries...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/28905413/simultaneous-acquisition-sequence-for-improved-hepatic-pharmacokinetics-quantification-accuracy-saha-for-dynamic-contrast-enhanced-mri-of-liver
#20
Jia Ning, Yongliang Sun, Sheng Xie, Bida Zhang, Feng Huang, Peter Koken, Jouke Smink, Chun Yuan, Huijun Chen
PURPOSE: To propose a simultaneous acquisition sequence for improved hepatic pharmacokinetics quantification accuracy (SAHA) method for liver dynamic contrast-enhanced MRI. METHODS: The proposed SAHA simultaneously acquired high temporal-resolution 2D images for vascular input function extraction using Cartesian sampling and 3D large-coverage high spatial-resolution liver dynamic contrast-enhanced images using golden angle stack-of-stars acquisition in an interleaved way...
September 14, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
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