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Aneurysms

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https://www.readbyqxmd.com/read/28454393/diagnosing-and-discriminating-between-primary-and-secondary-aneurysmal-bone-cysts
#1
Hiromi Sasaki, Satoshi Nagano, Hirofumi Shimada, Masahiro Yokouchi, Takao Setoguchi, Yasuhiro Ishidou, Osamu Kunigou, Kosuke Maehara, Setsuro Komiya
Aneurysmal bone cysts (ABCs) are benign bony lesions frequently accompanied by multiple cystic lesions and aggressive bone destruction. They are relatively rare lesions, representing only 1% of bone tumors. The pathogenesis of ABCs has yet to be elucidated. In the present study, a series of 22 cases of primary and secondary ABC from patients treated in Department of Orthopedic Surgery, Kagoshima University Hospital (Kagoshima, Japan) from 2001-2015 were retrospectively analyzed. The average age at the time of diagnosis of primary ABC was 17...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453805/pathological-investigation-of-graft-related-oesophageal-fistula
#2
Masaki Yamamoto, Hideaki Nishimori, Mitsuko Iguchi, Kazumasa Orihashi
Oesophageal fistulae after thoracic endovascular aneurysm repair (TEVAR) for thoracic aortic aneurysm (TAA) have been reported, although the causes are unknown. One hypothesis is that the structural configuration of the aortic aneurysm, as it protrudes towards the oesophagus, may affect oesophageal fistula formation. The pathological findings of an oesophageal fistula following TEVAR are reviewed here. This report presents the case of a 68-year-old man with a stent graft-related oesophageal fistula after TEVAR for TAA...
May 1, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28453577/abdominal-aortic-aneurysm-screening-program-using-hand-held-ultrasound-in-primary-healthcare
#3
Antoni Sisó-Almirall, Belchin Kostov, Marta Navarro González, Daniel Cararach Salami, Alfonso Pérez Jiménez, Rosa Gilabert Solé, Concepció Bru Saumell, Lluís Donoso Bach, Mireia Villalta Martí, Luis González-de Paz, Rafael Ruiz Riera, Vicenç Riambau Alonso, Nihan Acar-Denizli, Marta Farré Almacellas, Manuel Ramos-Casals, Jaume Benavent Àreu
We determined the feasibility of abdominal aortic aneurysm (AAA) screening program led by family physicians in public primary healthcare setting using hand-held ultrasound device. The potential study population was 11,214 men aged ≥ 60 years attended by three urban, public primary healthcare centers. Participants were recruited by randomly-selected telephone calls. Ultrasound examinations were performed by four trained family physicians with a hand-held ultrasound device (Vscan®). AAA observed were verified by confirmatory imaging using standard ultrasound or computed tomography...
2017: PloS One
https://www.readbyqxmd.com/read/28449126/results-of-the-answer-trial-using-the-pulserider-for-the-treatment-of-broad-necked-bifurcation-aneurysms
#4
Alejandro M Spiotta, Colin P Derdeyn, Satoshi Tateshima, Jay Mocco, R Webster Crowley, Kenneth C Liu, Lee Jensen, Koji Ebersole, Alan Reeves, Demetrius K Lopes, Ricardo A Hanel, Eric Sauvageau, Gary Duckwiler, Adnan Siddiqui, Elad Levy, Ajit Puri, Lee Pride, Roberta Novakovic, M Imran Chaudry, Raymond D Turner, Aquilla S Turk
BACKGROUND: The safety and probable benefit of the PulseRider (Pulsar Vascular, Los Gatos, California) for the treatment of broad-necked, bifurcation aneurysms was studied in the context of the prospective, nonrandomized, single arm clinical trial-the Adjunctive Neurovascular Support of Wide-neck aneurysm Embolization and Reconstruction (ANSWER) Trial. OBJECTIVE: To present the results of the United States cases employing the PulseRider device as part of the ANSWER clinical trial...
April 25, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28448420/inflow-angle-of-small-paraophthalmic-aneurysms-is-a-determinant-of-adjacent-sphenoid-bone-remodeling
#5
Gianni Giancaspro, Thierry Gagné, Donatella Tampieri, Maria DelPilar Cortes
OBJECTIVE: Large internal carotid artery aneurysms can cause remodeling of the sphenoid bone with subsequent hemorrhage into the sinus. No reports have demonstrated small unruptured lesions causing similar bone remodeling. The purpose of this study was to demonstrate our experience with small unruptured paraophthalmic aneurysms causing sphenoid bone remodeling, specifically when the optimal aneurysm inflow angle is present. METHODS: We searched our database for computed tomography angiography studies of small paraophthalmic aneurysms and assessed adjacent sphenoid bone remodeling and inflow angle...
April 26, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28448408/contained-rupture-of-an-abdominal-aortic-aneurysm-with-extensive-vertebral-body-and-retroperitoneal-space-destruction
#6
Sean T Walker, Iraklis I Pipinos, Jason M Johanning, Christopher J Vargo
Chronic contained rupture of an abdominal aortic aneurysm with vertebral body erosion most commonly presents with symptoms of low back pain. Although not well known, vertebral body erosion or destruction may be seen in up to 25% of patients with sealed or contained rupture of an abdominal aortic aneurysm. This appearance on cross-sectional imaging may mimic a malignant or infectious process. Although these cases can present a diagnostic challenge, published cases of chronic contained rupture of an abdominal aortic aneurysm with vertebral body erosion demonstrate clinical and imaging similarities that, when recognized, can assist in diagnosis...
April 26, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28447918/no-relation-between-biomarkers-at-age-47-49-and-aortic-diameter-after-14-19-years-of-follow-up-a-population-based-study
#7
Soumia Taimour, Moncef Zarrouk, Jan Holst, Olle Melander, Gunar Engström, J Gustav Smith, Anders Gottsäter
BACKGROUND: Biomarkers reflecting diverse pathophysiological pathways may play an important role in the pathogenesis of abdominal aortic aneurysm (aortic diameter ≥30 mm, AAA), levels of many biomarkers are elevated and correlated to aortic diameter among 65-year-old men undergoing ultrasound (US) screening for AAA. PROBANDS AND METHODS: To evaluate potential relationships between biomarkers and aortic dilatation after long-term follow-up, levels of C-reactive protein (CRP), proneurotensin (PNT), copeptin (CPT), lipoprotein-associated phospholipase 2 (Lp-PLA2), cystatin C (Cyst C), midregional proatrial natriuretic peptide (MR-proANP), and midregional proadrenomedullin (MR-proADM) were measured in 117 subjects (114 [97 %] men) aged 47-49 in a prospective population-based cohort study, and related to aortic diameter at US examination of the aorta after 14-19 years of follow-up...
April 27, 2017: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/28447404/potential-biomechanical-roles-of-risk-factors-in-the-evolution-of-thrombus-laden-abdominal-aortic-aneurysms
#8
Lana Virag, John S Wilson, Jay D Humphrey, Igor Karšaj
Abdominal aortic aneurysms (AAAs) typically harbour an intraluminal thrombus (ILT), yet most prior computational models neglect biochemomechanical effects of thrombus on lesion evolution. We recently proposed a growth and remodelling model of thrombus-laden AAAs that introduced a number of new constitutive relations and associated model parameters. Because values of several of these parameters have yet to be elucidated by clinical data, and could vary significantly from patient to patient, the aim of this study was to investigate the possible extent to which these parameters influence AAA evolution...
April 26, 2017: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/28447279/multi-modality-molecular-imaging-of-aortic-aneurysms
#9
Brian J Malm, Mehran M Sadeghi
Aneurysms of the thoracic and abdominal aorta are common and can be associated with significant morbidity and mortality when complications, including dissection, rupture, or thrombosis, occur. Current approaches to diagnosis and risk stratification rely on measurements of aneurysm size and rate of growth, often using various imaging modalities, which may be suboptimal in identifying patients at the highest and lowest risk of complications. Targeting the biological processes underlying aneurysm formation and expansion with molecular imaging offers an exciting opportunity to characterize aortic aneurysms beyond size and address current gaps in our approach to diagnosis and treatment...
April 26, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28446485/primary-aortojejunal-fistula-a-rare-cause-for-massive-upper-gastrointestinal-bleeding
#10
Sylvester Paulasir, Rhami Khorfan, Christina Harsant, Harry Linne Anderson
A 68-year-old man presented to the emergency department with haematemesis and shock. Upper endoscopy and selective angiography could not identify the source of bleeding. He underwent selective embolisation of the gastroduodenal artery. The patient then had a period of about 24 hours with relative haemodynamic stability before having another episode of massive upper gastrointestinal bleed. A second attempt to embolise the common hepatic artery and distal coeliac axis was unsuccessful. Hence, he was urgently taken to the operating room for exploratory laparotomy...
April 26, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28446483/spontaneous-ruptured-iliac-artery-aneurysm-causing-acute-secondary-av-fistula
#11
Katherine-Helen Hurndall, Holly Carpenter, Jack Sandeman, Roland Fernandes
A 73-year-old woman presented with a 6-hour history of sudden onset lower abdominal pain. Her comorbidities included chronic obstructive pulmonary disease and hypertension. She was under surveillance for a known thoracoabdominal aneurysm. On presentation, she was hypotensive with a systolic blood pressure of 50 mm Hg and a pulse of 60 beats per minute. On examination, she had a pulsatile mass with bruit in her right lower abdomen. Pedal pulses were palpable in both feet. Blood gas analysis revealed a metabolic acidosis with a pH of 7...
April 26, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28446431/women-having-surgery-for-abdominal-aortic-aneurysm-are-nearly-twice-as-likely-to-die-as-men
#12
Susan Mayor
No abstract text is available yet for this article.
April 25, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28446266/vascular-function-long-term-after-kawasaki-disease-another-piece-of-the-puzzle
#13
Fátima F Pinto, Inês Gomes, Petra Loureiro, Sérgio Laranjo, Ana T Timóteo, Miguel M Carmo
BACKGROUND: Kawasaki disease is an acute systemic vasculitis. Cardiac complications are frequent and include endothelial dysfunction in patients with coronary anomalies. Thus far, endothelial dysfunction in patients with no coronary lesions is poorly understood. Our aim was to access the vascular function in adolescents and young adults long term after Kawasaki disease, but without coronary aneurysms or any other cardiac risk factors. METHODS: We carried out a single-centre prospective study in a Portuguese population...
April 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28446225/the-crosstalk-between-vascular-mscs-and-inflammatory-mediators-determines-the-pro-calcific-remodelling-of-human-atherosclerotic-aneurysm
#14
Carmen Ciavarella, Enrico Gallitto, Francesca Ricci, Marina Buzzi, Andrea Stella, Gianandrea Pasquinelli
BACKGROUND: Human mesenchymal stem cells (MSCs) possess well-known reparative abilities, but any defect of the immunomodulatory activity and/or the differentiation process may determine the development of human diseases, including those affecting the vascular wall. MSCs residing within the human aortic wall represent a potential cell mediator of atherosclerotic aneurysm development. METHODS: MSCs isolated from healthy and aneurysm aortas were characterized by flow cytometer and tested for differentiation properties...
April 26, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28446074/open-repair-of-hepatic-artery-and-celiac-artery-aneurysms-in-a-patient-with-prior-aortic-dissection-with-an-iliac-to-hepatic-artery-bypass
#15
Seema Joshi, Moshe Halak, Arie Ariche, Daniel Silverberg
A 67-year-old male with a history of an aortic dissection was found to have a large hepatic and celiac artery aneurysm. Due to the extent of the dissection within the aorta, a bypass was performed from his iliac artery to the hepatic bifurcation, followed by exclusion and ligation of the aneurysms.
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28445905/prenatal-diagnosis-of-galen-vein-aneurysm-using-ultrasonography-and-magnetic-resonance-imaging-and-perinatal-and-long-term-neurological-outcomes-a-case-series
#16
Pedro Pires, Larisse de Brito Aurélio Martins, Norma Maria Tenório Brito Pires, Heron Werner, Adilson Cunha Ferreira, Edward Araujo Júnior
Objective To describe the prenatal diagnosis of Galen vein aneurysm (GVA) based on ultrasonography and magnetic resonance imaging (MRI) in a series of cases, as well as its postnatal outcomes and follow-up until 4 years of age. Methods A retrospective longitudinal study was performed, analyzing a database comprising seven cases of prenatal diagnosis of GVA at two Brazilian institutions from February of 2000 to May of 2012. The following data were evaluated: gestational age at diagnosis, GVA dimensions on ultrasonography, associated fetal changes, findings on fetal echocardiography, gestational age at delivery, type of delivery, birth weight, Apgar score at the 1st and 5th minutes, neonatal outcomes, and survival with follow-up until 4 years of age...
April 26, 2017: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/28445810/circulating-cadmium-concentration-and-risk-of-aortic-aneurysms-a-nested-case-control-study-within-the-malm%C3%A3-diet-and-cancer-cohort
#17
Björn Fagerberg, Yan Borné, Gerd Sallsten, J Gustav Smith, Stefan Acosta, Margaretha Persson, Olle Melander, Niklas Forsgard, Anders Gottsäter, Bo Hedblad, Lars Barregard, Gunnar Engström
BACKGROUND AND AIMS: Diet and smoking expose the general population to cadmium (Cd), which is a toxic metal that accumulates in the arterial wall. In experimental studies, Cd causes reductions in proliferation of smooth muscle cells and cellular synthesis of procollagen. The aim of this study was to examine whether blood Cd levels, a valid measure of Cd exposure, are associated with increased risk of abdominal aortic aneurysm (AAA). METHODS: All middle-aged men and women enrolled in the Malmö Diet and Cancer study (n = 30 447) were followed from the baseline examination in 1991-1996 through 2009...
April 8, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28445318/renal-failure-caused-by-a-partly-calcified-aortic-aneurysm-in-a-patient-with-dabigatran-therapy-a-case-report
#18
Philipp Jud, Thomas Gary, Kurt Tiesenhausen, Rupert Portugaller, Gerald Hackl, Marianne Brodmann
RATIONALE: Abdominal aortic aneurysms (AAAs) are mostly asymptomatic. If aortic aneurysms become symptomatic, complications include peripheral embolization, acute aortic occlusion, and aortic rupture. However, there are also unusual complications caused by aortic aneurysms. PATIENT CONCERNS: An 87-old male with dabigatran therapy presented with newly developed melena and acute renal failure. Radiological imaging revealed an AAA with thrombotic and calcified deposits which affected the renal arteries...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28444478/the-association-between-geometry-and-wall-stress-in-emergently-repaired-abdominal-aortic-aneurysms
#19
Sathyajeeth S Chauhan, Carlos A Gutierrez, Mirunalini Thirugnanasambandam, Victor De Oliveira, Satish C Muluk, Mark K Eskandari, Ender A Finol
Abdominal aortic aneurysm (AAA) is a prevalent cardiovascular disease characterized by the focal dilation of the aorta, which supplies blood to all the organs and tissues in the systemic circulation. With the AAA increasing in diameter over time, the risk of aneurysm rupture is generally associated with the size of the aneurysm. If diagnosed on time, intervention is recommended to prevent AAA rupture. The criterion to decide on surgical intervention is determined by measuring the maximum diameter of the aneurysm relative to the critical value of 5...
April 25, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28444440/paradoxical-undressing-associated-with-subarachnoid-hemorrhage-in-a-non-hypothermia-case
#20
Emilienne Descloux, Kewin Ducrot, Maria Pia Scarpelli, Alexander Lobrinus, Cristian Palmiere
Paradoxical undressing is a phenomenon characterizing some fatal hypothermia cases. The victims, despite low environmental temperatures, paradoxically remove their clothes due to a sudden feeling of warmth. In this report, we describe a case of suspected paradoxical undressing in a non-hypothermia case. The victim, a 51-year-old Caucasian man, was found dead wearing only sneakers and socks. All other clothing was found in his car. Postmortem investigations allowed the hypothesis of hypothermia to be ruled out and revealed the presence of a ruptured cerebral aneurysm that caused a subarachnoid hemorrhage, the latter responsible for the death...
April 25, 2017: International Journal of Legal Medicine
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