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Lai Leon T LT Department of Neurosurgery, Australian School of Advanced Medicine, Macquarie University, Sydney, - - 2013
Objective To investigate the relevance of an endoscopic transnasal approach to the surgical treatment of paraophthalmic aneurysms. Setting Binasal endoscopic transplanum surgery was performed. Participants Seven cadaver heads were studied. Main Outcome Measures (1) Dimensions of the endonasal corridor, including the operative field depth, lateral limits, and the transplanum craniotomy. (2) The degree of ...
Niumsawatt Vachara - - 2013
Background The "neural loop" describes a digital artery passing through a digital nerve, after which both the structures progress distally to supply the digit. While rare, past descriptions refer to neural loops located around the common palmar digital arteries, with no reports of more distal loops.Methods We describe a case ...
Wray D Walter DW Division of Geriatrics, Department of Internal Medicine, University of Utah, VAMC SLC, GRECC 182, Bldg 2 Rm 1C03, 500 Foothill Dr, Salt Lake City, UT 84148, USA. - - 2013
This study sought to better define the role of NO in brachial artery flow-mediated vasodilation (FMD) in young, healthy humans. Brachial artery blood velocity and diameter were determined (ultrasound Doppler) in 8 volunteers (26 ± 1 year) before and after 5-minute forearm circulatory occlusion with and without intra-arterial infusion of ...
Li Ronny X RX Department of Biomedical Engineering, Columbia University, New York, NY, - - 2013
Arterial stiffness is a well-established biomarker for cardiovascular risk, especially in the case of hypertension. The progressive stages of an abdominal aortic aneurysm (AAA) have also been associated with varying arterial stiffness. Pulse wave imaging (PWI) is a noninvasive, ultrasound imaging-based technique that uses the pulse wave-induced arterial wall motion ...
Hotta Harumi H Department of Autonomic Neuroscience, Tokyo Metropolitan Institute of Gerontology, 35-2 Sakaecho, Itabashi-ku, Tokyo, Japan. - - 2013
To clarify mechanisms through which activation of the nucleus basalis of Meynert (NBM) increases cerebral cortical blood flow, we examined whether cortical parenchymal arteries dilate during NBM stimulation in anesthetized mice. We used two-photon microscopy to measure the diameter of single penetrating arteries at different depths (~800 μm, layers I to ...
Haworth S - - 2013
We read with interest the technique described recently by Moran et al for controlling intra-operative haemorrhage during cutaneous nasal surgery.(1) We would like to suggest similar technique which we have found useful in our department for skin surgery in the temporal region. The superficial temporal artery runs through the tempero-partietal fascia, ...
McLaughlin Nancy N Departments of Neurosurgery, Neurointerventional Radiology, David Geffen School of Medicine at UCLA, Los Angeles, California 90095-7436, - - 2013
The finding of dilated, elongated, and tortuous vessels on brain imaging should prompt clinicians to determine what vascular anomaly is present. Importantly, not all suspicious serpentine flow voids are manifestations of arteriovenous malformations or arteriovenous fistulas. Other types of intracranial vasculopathies should also be considered. The authors report a rare ...
Grant Jennifer S JS Institute of Cardiovascular and Medical Sciences, British Heart Foundation Glasgow Cardiovascular Research Centre, University of Glasgow, 126 University Place, Glasgow, G12 8TA, - - 2013
Pulmonary arterial remodeling is a presently irreversible pathologic hallmark of pulmonary arterial hypertension (PAH). This complex disease involves pathogenic dysregulation of all cell types within the small pulmonary arteries contributing to vascular remodeling leading to intimal lesions, resulting in elevated pulmonary vascular resistance and right heart dysfunction. Mutations within the ...
Wang Dong - - 2013
Cyanotic congenital heart defects with decreased pulmonary blood flow due to lung ischemia, hypoxia, and others lead to infant morbidity and mortality more than acyanotic heart disease does. Despite the great effort of medical research, their genetic link and underlying microRNAs molecular mechanisms remain obscure. In this study, we aimed ...
Son Young-Je - - 2013
Indocyanine green (ICG) videoangiography (VA) is being used in assessment of blood flow during cerebrovascular surgery. However, data collected during ICG angiography are usually interpreted qualitatively. In this study, quantitative analysis of ICG angiogram was attempted. ICG VA, performed during aneurysm surgery was analyzed retrospectively. The angiogram was captured serially ...
Zavoreo Iris - - 2013
Venous system can be classified as pulmonary veins, systemic veins and venous sinuses that are present only within the skull. Cerebral venous system is divided into two main parts, the superficial and the deep system. The main assignment of veins is to carry away deoxygenated blood and other maleficient materials ...
Buehler Mark A MA 2nd Department of Radiology, University of Toledo, Toledo, - - 2013
Thoracic venous aneurysms are very rare. They may be asymptomatic and can be found incidentally during imaging. They are associated with few complications including pulmonary embolism, rupture, and venous obstruction. Accurate diagnosis of a mediastinal aneurysm is essential to avoid complications secondary to biopsy or surgical intervention. This is a ...
Kisu Iori - - 2013
PURPOSE: Uterine blood flow is required for the maintenance of uterine viability in pregnancy and delivery, but it is unknown how many vessels are necessary for maintenance of uterine viability. The objective of this study was to examine whether unilateral uterine vessels provide sufficient nutrition in pregnancy in a cynomolgus ...
Rose David - - 2013
We present a case of double aortic arch with a predominant right and a double arterial duct detected by echocardiogram in a 28-week gestation foetus. The first evaluation revealed that both arches were perfused; the 1-month postnatal echocardiogram showed the closure of both arterial ducts and the partial obliteration of ...
Kono Kenichi - - 2013
Computational fluid dynamics (CFD) studies on cerebral aneurysms have attempted to identify surrogate hemodynamic parameters to predict rupture risk. We present a case of bilateral mirror image aneurysms, one of which ruptured soon after imaging. Wall shear stress values of the ruptured aneurysm changed by 20-30 % after rupture because of ...
Nakazato Ryo - - 2013
OBJECTIVES: We examined the performance of percent aggregate coronary plaque volume (%APV)-representing cumulative plaque volume as a function of total vessel volume-by coronary CT angiography (CTA) for identification of ischemic lesions of intermediate stenosis severity. BACKGROUND: Coronary lesions of intermediate stenosis demonstrate significant rates of ischemia. Coronary CTA enables quantification ...
Jablonski Karen - - 2013
A 57-year-old right-handed man complained of difficulty using his hands post-coronary artery bypass graft (figure). Neurologic examination revealed signs of callosal disconnection without hemiparesis. When asked to perform limb gestures like "brush your teeth" or "wave goodbye," the right hand performed flawlessly whereas the left hand was severely apraxic (video ...
Subban Vijayakumar - - 2013
Very late stent thrombosis is an uncommon event following implantation with bare metal stents (BMS) in coronary arteries. Long term follow up studies have shown that a small number of BMS develop very late thrombosis following years of stability. Atherosclerotic transformation of neointimal tissue is increasingly being recognised as the ...
White Christopher J - - 2013
Dr. Rastan and colleagues are to be congratulated for performing a well designed multicenter, prospective, randomized controlled trial comparing primary stenting with provisional stenting for moderate length (~42 mm) popliteal artery stenoses in primarily claudicators (79%) with one third having total occlusions (REF).(1) The Endovascular Treatment of Atherosclerotic Popliteal Artery ...
MacKenzie Ross Robert V RV Pulmonary Vascular Disease Unit, Papworth Hospital, Cambridge, - - 2013
This study analyzed the relationship between pulmonary vascular resistance (PVR) and pulmonary arterial compliance (Ca) in patients with idiopathic pulmonary arterial hypertension (IPAH) and proximal chronic thromboembolic pulmonary hypertension (CTEPH). It has recently been shown that the time constant of the pulmonary circulation (RC time constant), or PVR × Ca, ...
Nitzan Meir - - 2013
The oxygen saturation of the systemic arterial blood is associated with the adequacy of respiration, and can be measured non-invasively by pulse oximetry in the systemic tissue. The oxygen saturation of the blood in the pulmonary artery, the mixed venous blood, reflects the balance between oxygen supply to the systemic ...
Meloche Jolyane - - 2013
MicroRNAs have emerged as key players of gene regulation during development and disease states like cancer and cardiovascular diseases. Pulmonary arterial hypertension (PAH), a vascular disease characterized by pulmonary resistance vessel occlusion is not spared by microRNA implication. This is not surprising since PAH shares common aberrantly activated pathways with ...
Ogata Nobuhiko - - 2013
Carotid artery stenting (CAS) has been developed as an alternative therapeutic strategy of carotid endarterectomy (CEA) both for symptomatic and asymptomatic extra-cranial carotid artery stenosis. Some randomized clinical trial has been successfully proven the non-inferiority of CAS compared to CEA in terms of efficacy and safety regarding freedom from major ...
Gandolfo Fabrizio F Department of Pediatric Cardiology and Cardiac Surgery, Bambino Gesù Children's Hospital IRCCS, Roma, Italy. - - 2013
The combination of right aortic arch with aberrant left brachiocephalic artery and aortic coarctation is very rare. Here, we report the case of a 3.1-kg neonate with multiple malformations who received detailed preoperative anatomical definition by chest computed tomography (CT) scan and eventually underwent one-stage repair at the age of ...
Minamiguchi Hiroki - - 2013
CT during aortography (CTAo) using IVR 64-multidetector-row CT (IVR-64MDCT) enables the rapid and simultaneous depiction of both the hepatic and extrahepatic feeding arteries in hepatocellular carcinoma (HCC), and can be achieved using a reasonable volume of contrast medium. The scan time is approximately 6 s from the diaphragm to the kidney ...
Bae Eun-Kee - - 2013
We report a 67-year-old man who presented with severe headache after taking 50 mg of udenafil, a new phosphodiesterase 5 inhibitor. Computed tomographic imaging of the brain revealed a small amount of acute subarachnoid hemorrhage localized around basal cisterns (anterior to midbrain and pons). There were no aneurysms in the cerebral ...
Warren Patrick - - 2013
Venous aneurysms are rare clinical entities, particularly in children, and their presentation and natural history often depend on the anatomical location and underlying etiology. We present a single case of a 12-year-old girl who presented with a palpable right supraclavicular mass. Imaging evaluation with CT, conventional venography, MRI and sonography ...
Janssen Mikhael - - 2013
Arteriovenous fistula of the superficial temporal artery is quite rare. If it occurs, it is most often caused by trauma to the temporal region where the artery is very superficial to the skin. We present the first reported case of an arteriovenous fistula after temporal artery biopsy and review the ...
Vijayalakshmi I B - - 2013
The surgical and transcatheter coil closure of coronary arterial fistulas are described in the literature. We report our experience with the successful transcatheter closure of a coronary arterial fistula, arising from the left coronary artery and draining into the right ventricle, with the new Amplatzer duct occluder II device.
Jesinger Robert A - - 2013
Abnormally enlarged visceral arteries in the abdomen and pelvis must be recognized radiologically because early treatment can improve the quality of life and prevent life-threatening complications. These lesions, typically classified as aneurysms and pseudoaneurysms, are being detected more frequently with increased utilization of imaging and have various causes (eg, atherosclerosis, ...
Vidovich Mladen I - - 2013
A new dedicated cardiac ventriculography catheter was specifically designed for radial and upper arm arterial access approach. Two catheter configurations have been developed to facilitate retrograde crossing of the aortic valve and to conform to various subclavian, ascending aortic and left ventricular anatomies. The "short" dedicated radial ventriculography catheter is ...
Yoshioka Shotaro - - 2013
BACKGROUND: and Importance: The falcine sinus is an embryonic vessel that connects the superior and inferior sagittal sinusesandmostly closes after birth. Although some cases of persistent falcine sinus have beenreported, duralarteriovenous fistula(dAVF) associated with the falcine sinus has not previouslybeen reported. CLINICAL PRESENTATION:: A 60-year-old man presented with asymptomatic dAVFs ...
Korkmazer Bora B Bora Korkmazer, Burak Kocak, Civan Islak, Naci Kocer, Osman Kizilkilic, Division of Neuroradiology, Department of Radiology, Cerrahpasa School of Medicine, Istanbul University, 34098 Istanbul, - - 2013
Carotid cavernous sinus fistulas are abnormal communications between the carotid system and the cavernous sinus. Several classification schemes have described carotid cavernous sinus fistulas according to etiology, hemodynamic features, or the angiographic arterial architecture. Increased pressure within the cavernous sinus appears to be the main factor in pathophysiology. The clinical ...
Douris Peter C PC Department of Physical Therapy, New York Institute of Technology, - - 2013
Arterial stiffness increases with age and is related to an increased risk of coronary artery disease. Poor trunk flexibility has been shown to be associated with arterial stiffness in middle-aged subjects. The purpose of our research study was to measure arterial stiffness and flexibility in healthy middle-aged martial artists compared ...
Tubbs R Shane - - 2013
Introduction. Interpositional grafts are often used for extracranial to intracranial artery bypass procedures. However, donors often suffer from size mismatch and donor site morbidity. We sought a novel donor vessel that has not been used for these procedures. Materials and methods. In 10 adult cadavers, we dissected the length of ...
Sousa Pedro - - 2013
Left ventricular pseudoaneurysms and true aneurysms are two possible complications of myocardial infarction. However, while pseudoaneuryms require urgent surgical resection, true aneuryms can often be managed medically, making imperative an accurate diagnosis.The authors describe a case of a delayed rupture of a true aneurysm that was contained and gave rise ...
Ma Shixin - - 2013
Objectives: We compared mechanisms of lumen gain after Cappella Sideguard side branch (SB) bifurcation stent deployment versus a balloon-expanded stent in the corresponding main vessel (MV). Background: The novel Cappella Sideguard SB bifurcation stent is a self-expanding, thin-strut, nitinol device with anatomic flaring at the SB ostium. Methods: In 28 ...
Amin Faisal Mohammad - - 2013
AIM: To explore a possible differential effect of sumatriptan on extracerebral versus cerebral arteries, we examined the superficial temporal (STA), middle meningeal (MMA), extracranial internal carotid (ICAextra), intracranial internal carotid (ICAintra), middle cerebral (MCA) and basilar arteries (BA). METHODS: The arterial circumferences were recorded blindly using high-resolution magnetic resonance angiography ...
Jeong Woowon - - 2013
To study the effects of the geometrical characteristics of a framing coil on aneurysm thromboembolization efficacy, the hemodynamics in lateral aneurysms filled with coils having a different shape, orientation, and thickness were analyzed using computational fluid dynamics. The aneurysms packed with vortex and cage-shaped coils were modeled using three different ...
Bhave Nicole M - - 2013
An elderly man with dyspnea and syncope was found to have severe aortic stenosis (AS) by the continuity equation, despite a transaortic gradient that was only moderately elevated, in the setting of severe left ventricular dysfunction. The transaortic gradient increased during postextrasystolic beats, suggesting that his that his AS was ...
Anjum Qth - - 2013
A 45-year-old woman presented with headache, followed by dysphagia and dysphonia. Examination revealed IX, X and XII cranial nerve weakness. Magnetic resonance angiography of neck vessels confirmed a left internal carotid artery dissection at the skull base, with haematoma in the aneurysmal left internal carotid artery. This dilated area of ...
Kim Dong Hyeok - - 2013
Percutaneous recanalization of chronic total occlusions (CTOs) in peripheral arteries, especially TASC D classification including the distal aorta and both iliac arteries is still technically challenging. The conventional technique using standard guidewires and catheters guided by computed tomography and angiography can achieve a limited initial success, depending on lesion characteristics ...
Saxena Alok - - 2013
The ulnar artery provides a major blood supply to the hand in the form of the superficial palmar arch, with the assistance of the radial artery. A rare pattern of the superficial palmar arch was observed in a formalin fixed, male cadaveric left hand. The ulnar artery was only involved ...
Shariat Masoud - - 2013
Asymptomatic 12-year-old girl with a heart murmur underwent echocardiogram and suspicious continuous flow was detected in her interventricular septum. She underwent cardiac magnetic resonance (CMR) for further investigation. The CMR images demonstrated anomalous origin of the right coronary artery from the pulmonary artery. Adenosine stress perfusion scan showed an inducible ...
Awasthy Neeraj - - 2013
The case of an infant with double outlet right ventricle with anatomically corrected malposition of the great arteries, bilateral infundibulum, and an echocardiographically routable ventricular septal defect (VSD) is presented. After numerous efforts to visualize the margins of the VSD, the best surgical exposure of the VSD was through the ...
Fontanella Marco - - 2013
Anastomosis to the superficial temporal artery is suitable in patients with functional and structural impairment of the middle cerebral artery (i.e., complex aneurysms and skull base tumors), as either definitive treatment or an additional safety measure. A shorter occlusion time or a non-occlusive technique is expected to reduce the risk ...
Mittal S R SR Deptt. of Cardiology, St. Francis Hospital, - - 2013
A case of pseudoaneurysm of right radial artery following transradial coronary angiography is reported. Adequate hemostasis is the key to prevention. Prolonged ultrasonography guided compression of neck of pseudoaneurysm or injection of procoagulants in the cavity of pseudoaneurysm can help non surgical closure.
Sessa Roberto R Cardiovascular research institute, University of California San Francisco, CA 94158, - - 2013
MicroRNAs (miRNAs) are a class of small noncoding RNA which exert post-transcriptional gene regulation activity by targeting messenger RNAs. miRNAs have been found to be involved in various fundamental biological processes and deregulation of miRNAs is known to result in pathological conditions. In this review, we provide an overview of ...
Tanaka Koji - - 2013
Our objective is to present a case of fatal multiple systemic emboli after intravenous thrombolysis for cardioembolic stroke. A 64-year-old woman with atrial fibrillation was admitted for evaluation of sudden consciousness disturbance, right hemiplegia, and aphasia. Diffusion-weighted imaging showed no early ischemic changes of the brain, and magnetic resonance angiography ...
Martínez-Galdámez Mario - - 2013
Purely extradural lumbar spinal arteriovenous malformations (AVMs) are rare lesions that have diverse presentations and imaging features. The treatment of a symptomatic high flow paraspinal AVM with multiple feeders remains a challenge. We report the first use of an Ascent balloon (dual lumen balloon catheter) to deliver Onyx with excellent ...
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