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Results 251 - 300 of 1931
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Badel Pierre P Ecole Nationale Supérieure des Mines de Saint-Etienne, CIS-EMSE, CNRS:UMR5307, LGF, F-42023 Saint Etienne, France. Electronic address: - - 2014
Balloon angioplasty is a standard clinical treatment for symptomatic coronary artery disease. In this procedure, controlled damage is applied intraluminally to the wall of a stenotic artery. Dissection of the coronary artery is a commonly observed clinical complication of angioplasty; however, not all dissections can be detected angioscopically. This work ...
Ruttkay Tamas T Department of Cardiac Surgery, Sana Cardiac Surgery Stuttgart GmbH, Stuttgart, - - 2014
Background We compared the aortic, left atrial, and apical approaches to visualize the mitral valve with the goal to investigate the endoscopic anatomy and give exact step-by-step descriptions of these views. Materials and Methods The mitral valvular complex of human cadaveric fresh hearts was investigated from three approaches using 0, 30, and ...
Hodgkinson Jonathan D JD Department of Surgery and Cancer, Imperial College, London, United Kingdom. Electronic address: - - 2014
We describe a novel use of an Amplatzer III plug device (St. Jude Medical, St. Paul, Minn) in the treatment of a traumatic arteriovenous fistula between the innominate vein and the origin of the left common carotid artery causing symptomatic right heart failure. A review of the literature indicates this ...
Ung Timothy H TH School of Medicine, University of Colorado School of Medicine, Aurora, CO - - 2014
Optimal vascular control during neurosurgical resection of large sub-frontal meningioma is hindered by limited early access to the ethmoidal arteries. Pre-operative ligation of the ethmoidal arteries 1) induces tumor necrosis simplifying resection and 2) minimizes blood loss and operative time. Early arterial ligation is an advantage of endoscopic approaches to ...
Huang Angela H AH Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA, - - 2014
This review will focus on two elements that are essential for functional arterial regeneration in vitro: the mechanical environment and the bioreactors used for tissue growth. The importance of the mechanical environment to embryological development, vascular functionality, and vascular graft regeneration will be discussed. Bioreactors generate mechanical stimuli to simulate ...
Pullamsetti Soni Savai SS Max-Planck-Institute for Heart and Lung Research, Bad Nauheim, Germany, Universities of Giessen and Marburg Lung Center, Giessen, Germany ; - - 2014
The development of therapeutic concepts in pulmonary hypertension is intimately linked with the unraveling of pathogenetic sequelae. This perspective highlights advances in our understanding of the regulation of vasomotion and vascular remodeling that have led to "reverse-remodeling" and regenerative strategies as novel treatment concepts. Progress has been made in understanding ...
Lluri Gentian G Ahmanson/UCLA Adult Congenital Heart Disease Center, Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, - - 2014
Coronary artery development is a delicate, complex, and finely tuned process that includes multiple interactions among many pathways, especially in the pericardium and the developing myocardium. There still exists some controversy on the exact origin of certain cellular components. Nevertheless, an understanding of this extremely important developmental process is paramount ...
Saxena Pankaj P Division of Cardiovascular Surgery, Mayo Clinic, Rochester, MN, - - 2014
Described here is a technique of right atrial cannulation to establish cardiopulmonary bypass for repairing descending thoracic/aortic arch aneurysms via left thoracotomy. This technique provides satisfactory venous return and can be used for retrograde cerebral perfusion during aortic surgery. The technique is safe and has been extensively used by the ...
Byrne Anthony L AL Department of Respiratory Medicine, Prince of Wales Hospital, Randwick, NSW, - - 2014
Peripheral venous blood gas (PVBG) analysis is increasingly being used as a substitute for arterial blood sampling; however, comparability has not been clearly established. To determine if the pH, PCO2 and PO2 obtained from PVBG analysis is comparable with arterial blood gas (ABG) analysis. A search was conducted of electronic ...
Spiotta Alejandro M AM Division of Neurosurgery, Department of Neurosciences, Medical University of South Carolina, Charleston, South Carolina, - - 2014
While intravenous administration of tissue plasminogen activator (tPA) remains the only FDA-approved treatment modality for acute ischemic stroke, many patients do not meet the criteria for intravenous tPA and are offered intra-arterial therapy. Rapid advances in devices and approaches have marked the evolution of thrombectomy over the past decade from ...
Taal Maarten W MW Department of Renal Medicine, Royal Derby Hospital, Derby, - - 2014
Epidemiological studies have established arterial stiffness as an important risk factor for cardiovascular events and mortality in people with chronic kidney disease (CKD) at all stages. Although much has been learned about the mechanisms that lead to arterial stiffening in CKD, many questions remain unanswered and the optimal interventions for ...
Leyon Joe J - - 2014
Percutaneous vascular embolization is one of the major applications of interventional radiology. A wide variety of embolization agents are currently available for clinical use. The interventional radiologist needs to be up to date with the newer and different types of embolic agents available along with their biopharmaceutical characteristics, strengths, and ...
Izzy Saef S Department of Neurology (Neurocritical Care), University of Massachusetts Medical School, 55 Lake Ave North, S-5, Worcester, MA, 01655, - - 2014
Cerebral vasospasm (cVSP) consists of the vasoconstriction of large and small intracranial vessels which can lead to cerebral hypoperfusion, and in extreme cases, delayed ischemic deficits with stroke. While most commonly observed after aneurysmal subarachnoid hemorrhage (aSAH), cVSP can also occur after traumatic brain injury (TBI) as we have described ...
González J J Servicio de Urología, Hospital Central de la Cruz Roja San José y Santa Adela, Avenida de Reina Victoria 22-26, 28003, Madrid, Madrid, Spain, - - 2014
A renal artery aneurysm is defined as a dilated segment of renal artery that exceeds twice the diameter of a normal renal artery. Although rare, the diagnosis and incidence of this entity have been steadily increasing due to the routine use of cross-sectional imaging. In certain cases, renal artery aneurysms ...
Agarwal Nitin N Departments of Neurological - - 2014
Central retinal artery occlusion, although relatively rare, is an ophthalmological emergency. If left untreated, complete blindness will ensue. Conventional therapies have not significantly improved outcomes compared with the natural history of the disease. Several case series of more recent endovascular approaches, such as intraarterial fibrinolysis, report successful outcomes. Still other ...
Reynolds Matthew R MR Departments of Neurological - - 2014
Extracranial-intracranial (EC-IC) arterial bypass has been used in the treatment of various neurosurgical pathologies including skull base tumors requiring sacrifice of a large intracranial artery; complex intracranial aneurysms requiring trapping; and distal revascularization, moyamoya disease, and symptomatic cerebrovascular stenoocclusive disease. The latter indication has been the subject of intense investigations ...
Demarco J Kevin JK Department of Radiology, Michigan State University, East Lansing, Michigan; - - 2014
In this paper, the authors review the definition of high-risk plaque as developed by experienced researchers in atherosclerosis, including pathologists, clinicians, molecular biologists, and imaging scientists. Current concepts of vulnerable plaque are based on histological studies of coronary and carotid artery plaque as well as natural history studies and include ...
Salem Jean F JF Department of Surgery, American University of Beirut Medical Center, Beirut, - - 2014
Inferior phrenic artery (IPA) pseudoaneurysm is an extremely rare complication of chronic pancreatitis with only three cases reported in the literature so far. It is a serious condition that can be life-threatening if not diagnosed promptly. Recent advances in endovascular interventions made angiography with embolisation the modality of choice for ...
Grunwald Iris Q IQ Director Neuroscience and Medical Affairs, PMI, Anglia Ruskin University, CM1 1SQ Chelmsford, United Kingdom. - - 2014
The purpose of this article is to give an overview of the management of the most common complications encountered during subarachnoid hemorrhage and endovascular treatment of intracranial aneurysms. We reviewed the literature and identified the complications encountered during endovascular treatment of intracranial aneurysms. We report current management strategies of complications ...
Chan Patrick G PG Division of Cardiac Surgery, Department of Cardiothoracic Surgery, University of Pittsburgh, Pittsburgh, PA, - - 2014
Rheumatic mitral valve disease often manifests with leaflet fibrosis, commissural fusion and early calcific degeneration. The thickening and fibrosis of the valvular and subvalvular apparatus has made prosthetic mitral replacement the traditional surgical solution. However, favourable valve morphology in some patients may permit a durable mitral repair rather than replacement. ...
Dai Jian J Department of Cardiology, Yue Yang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, - - 2014
The approach to a chronic total occlusion (CTO) still remains one of the most technical challenges in percutaneous coronary intervention (PCI). CTO lesions with a blunt entry point, calcification, and failure of a previous approach, are the independent predictors of CTO-PCI failure. Here we report a successful antegrade approach for ...
Sanidas Elias E Antwerp Cardiovascular Institute Middelheim, Antwerp, - - 2014
The growing use of the transradial approach for percutaneous coronary interventions has been shown to decrease the risk of major vascular complications. However, in this case report we describe a iatrogenic left main dissection during diagnostic coronary catheterization, which remains a rare, but still life-threatening condition. The adjunctive use of ...
Zhao Yidan Y Latner Thoracic Surgery Research Laboratories and Division of Thoracic Surgery, Toronto General Hospital, University Health Network, University of Toronto, Toronto, Ontario, - - 2014
Although multiple gene and protein expression have been extensively profiled in human pulmonary arterial hypertension (PAH), the mechanism for the development and progression of pulmonary hypertension remains elusive. Analysis of the global metabolomic heterogeneity within the pulmonary vascular system leads to a better understanding of disease progression. Using a combination ...
Lee Chang-Young CY Department of Neurosurgery, Keimyung University School of Medicine, Daegu, Republic of - - 2014
The crossing Y-stent technique is a viable option for coiling of wide-necked bifurcation aneurysms. However, little is known about the long-term impact of this technique. Very late (>1 year) stent thrombosis following the placement of a crossing Y-stent with dual closed-cell stents for the coiling of a wide-necked basilar tip ...
Roy Tanushree T Post Graduate Student, Department of Anatomy, North Bengal Medical College , Darjeeling, India - - 2014
In a female cadaver unilateral variations were found in upper limb arterial system - as (1) high-up origin of ulnar artery at arm, (2) persistent prominent arteria nervii mediana or median artery, (3) common interosseous artery branching out of brachial artery. Literature review revealed these coexistent anomalies as the consequence ...
Vadivel Arul A Ottawa Hospital Research Institute, Sprott Center for Stem Cell Research, Regenerative Medicine Program and Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Ontario, - - 2014
Bronchopulmonary dysplasia (BPD), the chronic lung disease of prematurity, remains a major health problem. BPD is characterized by impaired alveolar development and complicated by pulmonary hypertension (PHT). Currently there is no specific treatment for BPD. Hydrogen sulfide (H2S), carbon monoxide and nitric oxide (NO), belong to a class of endogenously ...
Gutierrez Jose J Department of Neurology, College of Physicians and Surgeons, Columbia University Medical Center New York, NY, - - 2014
Mechanisms underlying brain arterial remodeling are uncertain. We tested the hypothesis that arterial size and location are important determinants of arterial characteristics. We collected large and penetrating brain arteries from cadavers with and without HIV. Morphometric characterization was obtained from digital images using color-based thresholding. The association of arterial size ...
Lee Darrin J DJ Department of Neurological Surgery, University of California, Davis, Sacramento, California, - - 2014
Superior sagittal sinus (SSS) thrombosis has high morbidity and mortality, and urgent recanalization is critical for severe cases. Standard endovascular techniques for thrombolysis and thrombectomy use retrograde venous access, an approach that may be unsuccessful in cases with extensive firm clot burden involving the dural sinuses distal to the SSS. ...
Wan Ab Naim Wan Naimah WN Department of Biomedical Engineering, Faculty of Engineering Building, University of Malaya, 50603 Kuala Lumpur, KL, - - 2014
Aortic dissection, characterized by separation of the layers of the aortic wall, poses a significant challenge for clinicians. While type A aortic dissection patients are normally managed using surgical treatment, optimal treatment strategy for type B aortic dissection remains controversial and requires further evaluation. Although aortic diameter measured by CT ...
Tanaka Michihiro M Department of Neurosurgery, Kameda Medical Center, Higashi-cho 929, Kamogawa City, Chiba, 296-8602, Japan, - - 2014
Fusiform intracranial aneurysm is one of the most difficult pathologies to treat. The role and efficacy of recent advanced endovascular technique and conventional bypass surgery are discussed.
Francis Sheila E SE Department of Cardiovascular Science, Medical School, University of Sheffield, Sheffield, United - - 2014
Atherosclerosis is a pathological process with several inputs (biological, chemical, physiological, and others) interacting slowly over a lifetime leading to coronary artery disease, significant morbidity, and a limited lifespan. Over the past two decades, biologists have used experimental preparations from cells, animals, and man to understand the biology of atherosclerosis. ...
Putu Patriawan P Department of Radiology, Sanglah Hospital, Bali, - - 2014
We discuss and illustrate various endovascular treatment options for intracranial aneurysms, to reflect common technique used in endovascular treatment of brain aneurysm. We select five cases of various aneurysm types to show assortments of endovascular treatment (EVT) are performed. Selective catheterization of the intracranial aneurysms and endovascular treatments are technically ...
Schattlo Bawarjan B Department of Neurosurgery, Kantonsspital Aarau, Switzerland; - - 2014
Aneurysmal subarachnoid haemorrhage (aSAH) occurs as a result of rupture of an intracranial aneurysm and affects a younger population compared with ischaemic stroke or intracerebral haemorrhage. Although it makes up only about 5% of all cerebrovascular events, it accounts for over a quarter of the productive life-years lost to stroke. ...
Leavesley Silas J SJ Chemical and Biomolecular Engineering, University of South Alabama, Mobile, Alabama, United States of America; Pharmacology, University of South Alabama, Mobile, Alabama, United States of America; Center for Lung Biology, University of South Alabama, Mobile, Alabama, United States of - - 2014
Coronary collateral growth (arteriogenesis) is a physiological adaptive response to transient and repetitive occlusion of major coronary arteries in which small arterioles (native collaterals) with minimal to no blood flow remodel into larger conduit arteries capable of supplying adequate perfusion to tissue distal to the site of occlusion. The ability ...
Choi Ju-Hwan JH Department of Occupational and Environmental Medicine, Dongsan Medical Center of Keimyung University, Daegu, Republic of - - 2014
The purpose of this study was to evaluate and compare changes to pulmonary function among firefighters and non-firefighters who were exposed to harmful substances in their work environments. Firefighters (n = 322) and non-firefighters (n = 107) in Daegu who received a pulmonary function test in 2008 and 2011 as well as a regular ...
Gutsche J T JT Cardiovascular and Thoracic Section, Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Pennsylvania, - - 2014
Hypothermic circulatory arrest for adult aortic arch repair is still high-risk. Despite decades of clinical experience, significant practice variations exist around the world. These practice variations in hypothermic circulatory arrest may offer multiple opportunities to improve practice. The hypothesis of this study was that the current conduct of adult hypothermic ...
Carrion Katrina K Department of Pediatrics (Cardiology), University of California San Diego, La Jolla, California, United States of - - 2014
Aortic valve calcification is a significant and serious clinical problem for which there are no effective medical treatments. Individuals born with bicuspid aortic valves, 1-2% of the population, are at the highest risk of developing aortic valve calcification. Aortic valve calcification involves increased expression of calcification and inflammatory genes. Bicuspid ...
Ghadiri Hedeshi N N Faculty of Electrical and Computer Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran, - - 2014
In the past decades, medical data mining has become a popular data mining subject. Researchers have proposed several tools and various methodologies for developing effective medical expert systems. Diagnosing heart diseases is one of the important topics and many researchers have tried to develop intelligent medical expert systems to help ...
Klußmann-Fricke Bastian J BJ Allgemeine & Spezielle Zoologie, Institut für Biowissenschaften, Universität Rostock, Universitätsplatz 2, 18055 Rostock, - - 2014
Though it has long been known that the prosomal ganglion of scorpions is supplied by a dense system of arteries, the pattern of this network has never been described and analyzed in detail. Using MicroCT in combination with computer aided 3D-reconstruction we provide the first detailed description of the pattern ...
Troupis Theodore G TG Department of Anatomy, Faculty of Medicine, National and Kapodistrian University of Athens, Athens, - - 2014
In this study an unusual combination of arterial, venous and neural variations discovered during dissection of cervical, axillary and brachial area of a cadaver is described. Variations are thoroughly described and literature is briefly reviewed. Lateral cord of brachial plexus was not formed; Eight Cervical root divided into anterior and ...
Shaabi Hossam I HI King Fahad Central Hospital, Jazan, Saudi Arabia Department of Surgery, Faculty of Medicine, Jazan University, Jazan, Saudi Arabia - - 2014
True aneurysms of hand arteries are rare. I present a case of a true saccular aneurysm of the distal radial artery in a 65-year-old woman with no history of trauma. The CT angiography, intraoperative features, operative procedure, histopathological examination and literature review are presented and discussed.
Bajaj Anurag A Department of Internal Medicine, Wright Center, The Commonwealth Medical College, Scranton, PA, - - 2014
Angiography use has become increasingly common worldwide. Coronary artery aneurysm may be an incidental finding during angiography. Occasionally it might be symptomatic or may become symptomatic over the course of time. Rupture of aneurysm may lead to disastrous complications. Here we present a case in which aneurysm was asymptomatic but ...
Kallidonis Panagiotis S PS Department of Urology, University of Patras, Patras, - - 2014
Drugeluting metal stents (DESs) have been extensively used in coronary and vascular disease. This type of stents has been proven to provide significantly lower restenosis rates due to the reduction of neo-intimal hyperplasia in comparison to the traditionally used bare metal stents (BMSs). The latter stents have been evaluated for ...
Colvin Kelley L KL Department of Bioengineering, University of Colorado Denver , Aurora, CO , USA ; Department of Pediatrics-Critical Care, University of Colorado Denver , Aurora, CO , USA ; Cardiovascular Pulmonary Research, University of Colorado Denver , Aurora, CO , USA ; Linda Crnic Institute for Down Syndrome, University of Colorado Denver , Aurora, CO , - - 2014
Therapeutic approaches in pediatric pulmonary arterial hypertension (PAH) are based primarily on clinician experience, in contrast to the evidence-based approach in adults with pulmonary hypertension. There is a clear and present need for non-invasive and objective biomarkers to guide the accurate diagnosis, treatment, and prognosis of this disease in children. ...
Sethi Salil S University of Texas Health Science Center, San Antonio, TX, - - 2014
Aortic stiffness is a hallmark of aging, and classic cardiovascular risk factors play a role in accelerating this process. Current changes in medicine, which focus on preventive care, have led to a growing interest in noninvasive evaluation of aortic stiffness. Aortic stiffness has emerged as a good tool for further ...
Piotin Michel M Department of Interventional Neuroradiology, Foundation Rothschild Hospital , Paris , - - 2014
Wide-neck intracranial aneurysms were originally thought to be either untreatable or very challenging to treat by endovascular means because of the risk of coil protrusion into the parent vessel. The introduction of the balloon remodeling technique (BRT) and later stents specifically designed for intracranial use has progressively allowed these lesions ...
Bekken Joost A JA Department of Vascular Surgery, Maasstad Hospital, Rotterdam, the - - 2014
The treatment of symptomatic aortoiliac occlusive disease has shifted from open to endovascular repair. Both short- and long-term outcomes after percutaneous angioplasty and stenting rival those after open repair and justify an endovascular-first approach. In this article, we review the current endovascular treatment strategies in patients with aortoiliac occlusive disease, ...
Cvetko Erika E Institute of Anatomy, Medical Faculty, Ljubljana, Slovenia; - - 2014
Anatomical variations of the carotid arterial system have a great impact on surgical approaches to the neck and radiological imaging interpretation. Although reports on internal carotid artery dolichoarteriopathy (kinking, tortuosity, coiling) have been reported, no report on dolichoarteriopathy of the external carotid artery has been described. Herein, we report a ...
Alderazi Yazan J YJ Division of Endovascular Neurosurgery, Department of Neurological Surgery, Rutgers University, New Jersey Medical School, 90 Bergen Street, Suite 8100, Newark, NJ 07101, - - 2014
Flow diverters (pipeline embolization device, Silk flow diverter, and Surpass flow diverter) have been developed to treat intracranial aneurysms. These endovascular devices are placed within the parent artery rather than the aneurysm sac. They take advantage of altering hemodynamics at the aneurysm/parent vessel interface, resulting in gradual thrombosis of the ...
Paraskevas George G Department of Anatomy, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki, - - 2014
The jugular venous system constitutes the primary venous drainage of the head and neck. It includes a profundus or subfascial venous system, formed by the two internal jugular veins, and a superficial or subcutaneous one, formed by the two anterior and two external jugular veins. We report one case of ...
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