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Results 301 - 350 of 743
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Flors Lucía - - 2013
The objective of our study was to evaluate the diagnostic performance of dual-source dual-energy CT (DECT) in the detection of endoleaks after thoracic endovascular aortic repair for thoracic aortic aneurysm and to investigate if a double-phase (arterial and dual-energy late delayed phase) or a single-phase (dual-energy late delayed phase) acquisition ...
Matsuo Hitoshi - - 2013
In this case report, physiological changes of myocardial perfusion in the collateral recipient right coronary artery (RCA) and the collateral donor left anterior descending artery (LAD) with an intermediate lesion were assessed using intracoronary pressure measurement, before and after revascularization of chronic total occlusion (CTO). A 44 year old male ...
Johnson Jonas - - 2013
Abnormal vascular-ventricular coupling has been suggested to contribute to heart failure with preserved ejection fraction in elderly females. Failure to increase stroke volume (SV) during exercise occurs in parallel with dynamic changes in arterial physiology leading to increased afterload. Such adverse vascular reactivity during stress may reflect either sympatho-excitation or ...
Herson Paco S PS Department of Anesthesiology, University of Colorado Denver, Aurora, CO 80045, USA. - - 2013
Pediatric stroke, birth to 18 years, is a significant cause of long-term disability in the United States; however, there is currently little experimental data on the pathophysiology of childhood stroke owing to lack of animal models. We developed a novel mouse model of experimental childhood-onset arterial ischemic stroke to characterize ...
Erkanli Korhan - - 2013
A 54-year-old woman was referred to our institution suffering from severe dyspnea and asthenia due to progressive heart failure. Multidetector computed tomography angiography revealed biatrial enlargement with an image of pulmonary vein aneurysm. She underwent valvuloplasty for mitral and tricuspid valves, ligation of left atrial appendage, and left atrial reduction ...
Jung Jin-Man - - 2013
A 29-year-old man presented with unilateral dull headache for 3 days, similar to previous headache, but with right hemiparesis; there was no antecedent infection or trauma. MRI showed left striatocapsular infarction without evidence of cardioembolism or vasculitis. Digital subtraction angiography demonstrated stenosis of the left middle cerebral artery (MCA) trunk ...
Hara Tomoya - - 2013
A basket-shaped microsnare has various uses such as the pull through technique during coronary intervention to chronic total occlusion (CTO). A 79-year-old man underwent angioplasty for the femoral artery occlusion. We performed a controlled antegrade and retrograde tracking (CART) with dilatation of a balloon on the antegrade guidewire. The retrograde ...
Konieczka Katarzyna - - 2013
Abstract Purpose: Endothelin-1 (ET) is an important molecule in vascular physiology. After an acute stimulation with ET, vessels are to some extent temporarily refractory to further stimulation. However, few details are known about this phenomenon. The aim of our study was to verify the existence of refractoriness in ophthalmic ciliary ...
Brandt Andreas - - 2013
Possible complications of parotid gland surgery are numerous, just as the reasons for aneurysms of the superficial temporal artery. The occurrence of such an aneurysm as a consequence of parotidectomy, however, has so far only been published once. Here, we report of an aneurysm of the superficial temporal artery following ...
Moodley Loven L Chris Barnard Department of Cardiothoracic Surgery, University of Cape Town, Cape Town, South - - 2013
Different flow patterns and shear forces were shown to cause significantly more luminal narrowing and neointimal tissue proliferation in coronary than in infrainguinal vein grafts. As constrictive external mesh support of vein grafts led to the complete suppression of intimal hyperplasia (IH) in infrainguinal grafts, we investigated whether mesh constriction ...
Kim Sun Min - - 2013
Objective This study investigates whether fetal pulmonary artery Doppler waveforms can predict the subsequent development of respiratory distress syndrome (RDS).Study Design A prospective cohort study was performed in women with impending preterm birth. Pulsatility index, resistance index, systolic-to-diastolic ratio, peak systolic velocity, and acceleration time-to-ejection time (At/Et) ratio were measured in the ...
Galizia Mauricio S - - 2013
Although standard magnetic resonance angiography (MRA) has many advantages in the evaluation of peripheral artery disease, it has poorer spatial resolution compared with computed tomographic angiography and digital subtraction angiography. The MRA blood pool contrast agents have an extended half-life. By allowing longer imaging times, MRA enables the acquisition of ...
Gonzales Joaquin U - - 2013
Arterial stiffening is a widely known physiological change that occurs with ageing, but the functional consequences of vascular ageing are unclear. The purpose of this study was to determine whether carotid-femoral pulse wave velocity (PWV), mechanical properties of the carotid and femoral arteries and/or peripheral perfusion was associated with gait ...
Bauer Stefan - - 2013
We report a case of temporary arterial plastic tube stenting of the ulnar and radial artery in a complete spaghetti wrist injury in a remote rural setting. Exploration in a specialist centre 18 h postinjury revealed that the tubes were clotted off with adjacent thrombi but hand perfusion was maintained. ...
Choh Naseer A - - 2013
Subaortic left ventricular outflow tract pseudoaneurysms are rare lesions that are associated with aortic valve diseases, infective endocarditis, trauma or surgery. We present dynamic multidetector computerized tomography and cine magnetic resonance imaging features of a case of subaortic aneurysm arising from interaortic-mitral valvular region in a child with past history ...
Meissner M H - - 2013
Iliofemoral venous obstruction may arise from either primary compressive lesions or may be secondary to an episode of deep venous thrombosis. Regardless of aetiology, these lesions, either alone or in association with more distal reflux, may be responsible for lower extremity pain, swelling, and ulceration. Conventional surgical procedures for the ...
Kowalski William J - - 2013
Transformation from the bilaterally symmetric embryonic aortic arches to the mature great vessels is a complex morphogenetic process, requiring both vasculogenic and angiogenic mechanisms. Early aortic arch development occurs simultaneously with rapid changes in pulsatile blood flow, ventricular function, and downstream impedance in both invertebrate and vertebrate species. These dynamic ...
Iihara Koji - - 2013
A 33-year-old woman presented with a ruptured, partially thrombosed carotid bifurcation aneurysm after partial coiling, which was successfully treated by "tasuki" (a cloth sash crossing from one shoulder to the opposite hip, worn by relay marathon runners) clipping combined with radial artery and external carotid artery-to-middle cerebral artery bypass. "Tasuki" ...
Snyder Aaron - - 2013
Treatment of brachial artery injuries in children, particularly those resulting from supracondylar humeral fractures, is controversial when distal pulses are absent yet the hand remains warm and pink. This article presents a retrospective study of eight children, ages 3 to 13, who underwent brachial arterial exploration because of absent distal ...
Takahara Akira - - 2013
We compared effects of the antiarrhythmic drug bepridil on the electrophysiological parameters in the isolated pulmonary vein preparation from guinea pigs with those in the left atrium. Three pairs of bipolar electrodes were attached to the left atrium, pulmonary vein and junctional region of left atrium and pulmonary vein to ...
Emery Robert W - - 2013
The aim of this study was to determine whether the eSVS Mesh interferes with transit-time flow measurement (TTFM) assessing intraoperative coronary vein graft patency. In four swine undergoing off-pump bypass grafting to the anterior descending coronary artery, five TTFMs were sequentially obtained on meshed and bare grafts at baseline and ...
Rozati Hamoun - - 2013
A 67-year-old gentleman presented with a 1-day history of left foot pain. He had recently been discharged following a coronary artery bypass graft; during the admission, he had received an intravenous heparin infusion. Examination revealed black-purple discolouration of the first and second digits of the left foot with pitting oedema ...
Dzeko Mirela - - 2013
: Aortic pulse wave velocity (aPWV) is a gold standard noninvasive marker of arterial stiffness. aPWV is usually obtained as carotid-femoral pulse wave velocity by measurements on the common carotid artery and the femoral artery. The carotid arteries branch slightly differently from the aorta towards the right and left side ...
Yang Feng-Yi - - 2013
This study demonstrates the feasibility of using focused ultrasound (FUS) to modulate glomerular ultrafiltration by renal artery sonication and determine if protein-creatinine ratios are estimated through vascular parameters. All animal experiments were approved by our Animal Care and Use Committee. The renal arteries of Sprague-Dawley rats were surgically exposed and ...
Choi Hyuk Jai - - 2013
A 65-year-old woman presented with left facial involuntary movement and facial palsy for eight years. Brain magnetic resonance image (MRI) and magnetic resonance angiography (MRA) revealed multiple vascular compression of facial nerve root exit zone (REZ). Standard retromastoid suboccipital craniectomy and arachnoid dissection were performed. Right vertebral artery (VA), left ...
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 ...
Orii Makoto - - 2013
Frequency-domain optical coherence tomography (FD-OCT) is a novel technology which provides high-resolution cross-sectional images of coronary arteries. The aim of this study was to evaluate the inter-scan reproducibility of geometric FD-OCT measurements in the clinical setting. We examined 20 coronary lesions using FD-OCT. Following the FD-OCT image acquisition (1(st) pullback), ...
Lazar John F - - 2013
Giant coronary artery aneurysms are variously defined as more than 20 to 50 mm in size. They are rare, with a prevalence of 0.02% in a large surgical population. We present the case of a 68-year-old woman who reported an increased awareness of her chest. Multiple imaging techniques revealed a ...
Speetzen Lukas Julius - - 2013
There is accumulating evidence, that ischemic preconditioning - a non-damaging ischemic challenge to the brain - confers a transient protection to a subsequent damaging ischemic insult. We have established bilateral common carotid artery occlusion as a preconditioning stimulus to induce early ischemic tolerance to transient focal cerebral ischemia in C57Bl6/J ...
Pomeroy William L - - 2013
We present the case of a 90-year-old diabetic male and medically managed three-vessel coronary artery disease with evidence of an oval, nonmobile echo-density located on the posterior mitral valve annulus measuring two centimeters in diameter without significant impingement of the mitral valve on initial screening echocardiogram which was initially thought ...
Wei Chuanyu - - 2013
MircoRNAs (miRNAs) are small non-coding RNAs that govern the gene expression and, play significant role in the pathogenesis of heart failure. The detection of miRNAs in circulation of pulmonary hypertensive (PH) human subjects remains elusive. In the current study, we determined the pattern of miRNAs of mild-to-severe human PH subjects ...
Hostettler Cathy - - 2013
Traumatic carotid artery dissections are uncommon and potentially devastating injuries that often have a delayed presentation. Soldiers often engage in leisure, training, and combat activities that place them at risk for sustaining an injury that causes a carotid artery dissection. To compound matters, spontaneous dissections are being more frequently recognized ...
Shaireen Huma - - 2013
Idiopathic infantile arterial calcification (IIAC) is a rare autosomal recessive disorder, characterized by wide spread calcifications in arterial walls, leading to vaso-occlusive ischaemia of multiple organs. Mortality is high, and there is no definitive treatment. A male neonate, 36+5 weeks gestation, 2.81 kg, was admitted to NICU for respiratory distress. ...
El Falougy Hisham - - 2013
The recurrent artery of Heubner (RAH) is the largest vessel of the medial lenticulostriate arteries. It supplies many deep structures, mainly the corpus striatum, the globus pallidus, and the anterior crus of the internal capsule. The aim of the present paper was studying the morphological variations of the RAH and ...
Hamilton Patricia A - - 2013
Technology of ear infrared (IR) thermometers has improved. This study compared a modern ear thermometer to forehead or temporal artery thermometers. Temperatures were measured with a heated-tip ear thermometer, a temporal artery thermometer, 3 forehead thermometers, and a thermistor-based reference thermometer in monitor mode. In 171 subjects, mean bias with ...
Shin Ik Jae - - 2013
Recently, partial ligation of the common carotid artery (CCA) was reported to induce carotid atheromata rapidly in apolipoprotein-E knockout (ApoE(-/-)) mice. We investigated this new atherosclerosis model by using combined matrix-metalloproteinase (MMP) near-infrared fluorescent (NIRF) imaging and macrophage-tracking luciferase imaging. Partial ligation of the left CCA was performed in 10-week-old ...
Yan Xiaopeng - - 2013
Installing the transjugular intrahepatic portosystemic shunt for portal hypertension is relatively safe, but complications are still high. To explore a new method of portacaval shunt, the magnetic compression technique was introduced into the shunting procedure. A portal-inferior vena cava shunt was performed on 6 male mongrel dogs by two hemocompatible ...
Ichikawa Minoru - - 2013
We report the case of a 69-year-old male whose left circumflex coronary artery was perforated immediately after implantation of an Endeavor zotarolimus-eluting stent (E-ZES). Despite successful hemostasis by long balloon inflation, a coronary pseudoaneurysm remained at the E-ZES-implanted segment. Coronary angiography performed one year after the coronary perforation showed the ...
Kono Kenichi - - 2013
Surgical microscope-integrated intraoperative angiography with intra-venous injection of indocyanine green (ICG) has been widely used during bypass or aneurysm surgery. Instead of intra-venous injection of ICG, we describe a case of intraoperative video angiography with intra-arterial injection of ICG in cerebral arteriovenous malformation (AVM) surgery. During the surgery, we injected ...
Zeng Guang-Qiao - - 2013
The purpose of this study was to establish an animal model of chronic pulmonary hypertension with a single-dose intraperitoneal injection of monocrotaline (MCT) in young Tibet minipigs, so as to enable both invasive and noninvasive measurements and hence facilitate future studies. Twenty-four minipigs (8-week-old) were randomized to receive single-dose injection ...
Zhang Xing X Institute of Cell Biology, Zhejiang University, Hangzhou, - - 2013
It is very difficult to prevent pulmonary tuberculosis (TB) due to the lack of specific and diagnostic markers, which could lead to a high incidence of pulmonary TB. We screened the differentially expressed serum microRNAs (miRNAs) as potential biomarkers for the diagnosis of pulmonary TB. In this study, serum miRNAs ...
Kim Hyunggun H Division of Cardiovascular Medicine, Department of Internal Medicine, The University of Texas Health Science Center at Houston, Houston, TX, - - 2013
Delayed cerebral vasospasm following subarachnoid hemorrhage causes severe ischemic neurologic deficits leading to permanent neurologic dysfunction or death. Reduced intravascular and perivascular nitric oxide (NO) availability is a primary pathophysiology of cerebral vasospasm. In this study, we evaluated NO-loaded echogenic liposomes (NO-ELIP) for ultrasound-facilitated NO delivery to produce vasodilation for ...
van de Woestijne Pieter C PC Department of Cardiothoracic Surgery, Erasmus University Medical Center, Rotterdam, - - 2013
Partial anomalous pulmonary venous connection (PAPVC) is defined to exist when some but not all venous drainage enters the left atrium, while the remaining veins connect to the right-sided circulation. Scimitar syndrome is a specialized example, in which an anomalous pulmonary vein descends from the right lung and drains into ...
Radhakrishnan Harsha H Biomedical Engineering Department, University of California Davis, Davis, CA 95616, USA ; Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital/Harvard Medical School, Charlestown, MA 02129, - - 2013
Optical Coherence Tomography (OCT) angiography was applied to image functional hyperemia in different vascular compartments in the rat somatosensory cortex. Dynamic backscattering changes, indicative of changes in dynamic red blood cell (dRBC) content, were used to monitor the hemodynamic response. Three-dimensional movies depicting the microvascular response to neuronal activation were ...
Xu Xiu-Fang XF Department of Cardiac Surgery (WBL, ZWX, DG), Department of Ultrasound Cardiography (JFP), Department of Molecular Biology (XFX), Department of Cardiology (XJR), Department of Anaesthesiology (EMQ), Institute of Heart, Lung and Blood Vessel, Anzhen Hospital, Capital Medical University Beijing 100029, - - 2013
Mitral valve-related operations are easy to perform and show good results, but to prevent severe thromboembolism or a high ratio of prosthetic valve destruction by tissue, lifetime anticoagulant therapy is essential after the operation. Thus, identifying a new type of surgical procedure and prosthetic valve to cure mitral valve diseases ...
Friedlander A H AH Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA, USA. - - 2013
Primary hyperparathyroidism (PHPT), affecting 1% of the population, is associated with increased cardiovascular morbidity and mortality. The presence of calcified carotid artery plaque (CCAP) on panoramic images is a validated risk indicator of future adverse cardiovascular events. We hypothesized that military veterans aged 50 years or older diagnosed with PHPT ...
Marco Meggiolaro M Division of Anaesthesiology and Intensive Care, University Hospital of Padova, Via Giustiniani 2, 35128 Padova, - - 2013
Central venous catheterization is of common practice in intensive care units; despite representing an essential device in various clinical circumstances, it represents a source of complications, sometimes even fatal, related to its management. We report the removal of a central venous catheter (CVC) that had been wrongly positioned through left ...
Tanaka Jun J Department of Internal Medicine, Saga University Faculty of Medicine, - - 2013
A 38-year old man with an 8-year history of migraine with subclinical abnormal brain lesions on MRI was admitted to our hospital. His migraine attacks followed visual disturbance or dysarthria. Brain MRI revealed old infarctions restricted to the posterior circular region. On transesophageal cardiography, an atrial septal defect (ASD) was ...
Rajabi-Jagahrgh Ehsan - - 2012
Arteriovenous fistula (AVF) failure is mainly due to venous stenosis characterized by significant amount of intima-media thickening (IMT), probably in the presence of negative (inward) remodeling. Our hypothesis is that the longitudinal changes in wall shear stress (WSS) within different configurations of AVF can influence remodeling factors (changes in luminal ...
Kim Jongmin J Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, - - 2013
Pulmonary arterial hypertension (PAH) is characterized by vascular remodeling associated with obliteration of pulmonary arterioles and formation of plexiform lesions composed of hyperproliferative endothelial and vascular smooth-muscle cells. Here we describe a microRNA (miRNA)-dependent association between apelin (APLN) and fibroblast growth factor 2 (FGF2) signaling in pulmonary artery endothelial cells ...
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