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Cho Alexander H - - 2013
This case describes the use of flexible bronchoscopy and cryoadhesion in an 83-year-old man who developed large airway clots following treatment with activated factor VII for a complication of pulmonary hemorrhage during coronary artery bypass graft.
Nie Xiao-Min - - 2013
Stent thrombosis is one of severe complications after sirolimus-eluting stent implantation. Rapamycin (sirolimus) promotes arterial thrombosis in in vivo studies. However, the underlying molecular and transcriptional mechanisms of this adverse effect have not been thoroughly investigated. This study was designed to examine the effects of rapamycin on the expression of ...
Wang Xun - - 2013
Treatment of ring degloving injuries of the finger is one of the most demanding problems in hand surgery. Replantation has been advocated as the best solution if the vessels belonging to the degloved skin are not irreversibly destroyed. We present a case involving a ring finger with circumferentially avulsed skin. ...
Sacilotto Natalia N Ludwig Institute for Cancer Research Ltd, Nuffield Department of Clinical Medicine, University of Oxford, Oxford OX3 7DQ, United - - 2013
The mechanisms by which arterial fate is established and maintained are not clearly understood. Although a number of signaling pathways and transcriptional regulators have been implicated in arterio-venous differentiation, none are essential for arterial formation, and the manner in which widely expressed factors may achieve arterial-specific gene regulation is unclear. ...
Sadasivan Chander C Department of Neurological Surgery, Stony Brook University Medical Center, 100 Nicolls Road, HSC T12, Room 080, Stony Brook, NY 11794-8122, - - 2013
Many factors that are either blood-, wall-, or hemodynamics-borne have been associated with the initiation, growth, and rupture of intracranial aneurysms. The distribution of cerebral aneurysms around the bifurcations of the circle of Willis has provided the impetus for numerous studies trying to link hemodynamic factors (flow impingement, pressure, and/or ...
Deng Yong Y Yale Cardiovascular Research Center, Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, - - 2013
Arterial morphogenesis is one of the most critical events during embryonic vascular development. Although arterial fate specification is mainly controlled by the Notch signaling pathway, arterial-venous patterning is modulated by a number of guidance factors. How these pathways are regulated is still largely unknown. Here, we demonstrate that endothelial activation ...
Roccabianca Sara - - 2013
Spontaneous dissection of the human thoracic aorta is responsible for significant morbidity and mortality, yet this devastating biomechanical failure process remains poorly understood. In this paper, we present finite element simulations that support a new hypothesis for the initiation of aortic dissections that is motivated by extensive histopathological observations. Specifically, ...
Li Jing - - 2013
Our laboratory has previously demonstrated that 15-lipoxygenase (15-LO)/15-hydroxyeicosatetraenoic acid (15-HETE) is involved in hypoxic pulmonary arterial hypertension. Chronic hypoxia-induced vascular inflammation has been considered as an important stage in the development of pulmonary arterial hypertension. Here, we determined the contribution of 15-HETE in the hypoxia-induced pulmonary vascular inflammation. Chronic hypoxia-induced ...
Gogas Bill D BD Thoraxcenter, Erasmus University Medical Centre, Rotterdam, The - - 2013
The concept of edge vascular response (EVR) was first introduced with bare-metal stents and later with radioactive stents of various activity levels. Although radioactive stents reduced intra-stent neointimal hyperplasia and thereby the incidence of in-stent restenosis in a dose-dependent manner, tissue proliferation at the non-irradiated proximal and distal stent edges ...
Lebreton Guillaume - - 2013
Cardiopulmonary bypass (CPB) is responsible for an inflammatory response that can lead to postoperative organ dysfunction. Undernutrition increases the risk of organ failure. We investigated the effect of undernutrition on the inflammatory response and mesenteric vascular reactivity induced by CPB in rats. CPB was performed in Wistar rats given normal ...
Anderson Julia A - - 2013
Hemostasis maintains the blood in a fluid state under physiological conditions, yet enables rapid clot formation at sites of vascular injury to prevent excessive bleeding. Disruption of hemostasis can lead to thrombosis, which can occur in arteries, veins, or in the chambers of the heart. Factors contributing to thrombosis in ...
Logan Jeongok G - - 2013
Arterial stiffness is an important clinical marker of cardiovascular diseases. Although many studies have been conducted on different racial groups, less is known about arterial stiffness in Asian Americans. Korean Americans constitute the fifth largest subgroup in the Asian American population and reportedly have a noticeably high prevalence of hypertension. ...
Meyer Matthias R - - 2013
Obesity and arterial hypertension, important risk factors for atherosclerosis and coronary artery disease, are characterized by an increase in vascular tone. While obesity is known to augment vasoconstrictor prostanoid activity in endothelial cells, less is known about factors released from fat tissue surrounding arteries (perivascular adipose). Using lean controls and ...
Jiang Dong-Mei - - 2013
Endothelial dysfunction is the pathophysiological characteristic of pulmonary arterial hypertension (PAH). Some paracrine factors secreted by bone marrow-derived endothelial progenitor cells (BMEPCs) have the potential to strengthen endothelial integrity and function. This study investigated whether BMEPCs have the therapeutic potential to improve monocrotaline (MCT)-induced PAH via producing vasoprotective substances in ...
Dou Dou - - 2012
ABSTRACT: Sulfhydryl-dependent formation of interprotein disulfide bonds in response to physiological oxidative stimuli is emerging as an important mechanism in the regulation of various biological activities. Soluble guanylyl cyclase (sGC) and cGMP-dependent protein kinase (PKG) are key enzymes for actions caused by cGMP-elevating agents including nitric oxide (NO). Both sGC ...
Chen Di - - 2012
Specification of arteries and veins is a key process for establishing functional vasculature during embryogenesis and involves distinctly different signaling mechanisms. Angiogenic factor VEGFA is required for differentiation of arteries, however, the upstream angiogenic factor for vein specification is unknown. Klippel-Trenaunay syndrome (KTS) is a congenital vascular disease associated with ...
Huk Danielle J DJ Center for Cardiovascular and Pulmonary Research, Columbus, OH, - - 2013
Calcific aortic valve disease (CAVD) is a major public health problem with no effective treatment available other than surgery. We previously showed that mature heart valves calcify in response to retinoic acid (RA) treatment through downregulation of the SRY transcription factor Sox9. In this study, we investigated the effects of ...
Ye Liping - - 2012
The dimeric status of nitric oxide (NO)-sensitive soluble guanylyl cyclase (sGC) is obligatory for its catalyzing activity to synthesis the second messenger cyclic guanosine monophosphate (cGMP), which leads to vasodilatation. The present study was conducted to determine whether or not the dimerization of sGC is modulated by thiol-reducing agents and ...
Xu Jianqiang - - 2012
BACKGROUND: ALTHOUGH CARINA SHIFT AND PLAQUE SHIFT ARE SUGGESTED AS MECHANISMS OF SIDE BRANCH OSTIAL (SBO) COMPROMISE AFTER MAIN VESSEL (MV) STENTING IN BIFURCATION LESIONS, THERE ARE FEW DIRECT EVIDENCE. OUR PURPOSE WAS TO CONFIRM THE MECHANISM OF SBO COMPROMISE AFTER MV STENT IMPLANTATION.METHODS AND RESULTS: INTRAVASCULAR ULTRASOUND IMAGES OF ...
Paulin Roxane R Vascular Biology Research Group; Department of Medicine; University of Alberta; Edmonton, AB - - 2012
Pulmonary artery hypertension (PAH) is a proliferative disorder associated with enhanced pulmonary artery smooth muscle cell proliferation and suppressed apoptosis. The sustainability of this phenotype requires the activation of pro-survival transcription factor like the signal transducers and activators of transcription-3 (STAT3). Using multidisciplinary and translational approaches, we and others have ...
van Schouwenburg Inge M - - 2012
Large population-based studies are needed to establish the magnitude and duration of the recently suggested association between arterial and venous thromboembolism. In 1997-98, all inhabitants of Groningen, the Netherlands, aged 28-75 years (n = 85 421), were invited to participate in a study that followed and monitored responding subjects (n = 40 856) for venous and arterial ...
Pisano Calogera - - 2012
We aimed to identify a phenotype of ascending thoracic aortic aneurysm (TAA), which, more than others, evolves into type A dissection (TAD). Aortic specimens were obtained from patients undergoing surgical repair of TAA and TAD (108 and 26, respectively). Histopathological and immunohistochemical analyses were performed by using adequate tissue specimens, ...
Audet Audrey - - 2012
Audet A, Côté N, Couture C, Bossé Y, Després J-P, Pibarot P & Mathieu P (2012) Histopathology Amyloid substance within stenotic aortic valves promotes mineralization Aims:  Accumulation of apolipoproteins may play an important role in the pathobiology of calcific aortic valve disease (CAVD). We aimed to explore the hypothesis that ...
Howard L S LS National Pulmonary Hypertension Service (London), Hammersmith Hospital, Imperial College Healthcare NHS Trust, London, - - 2012
We have shown previously that hypoxia inhibits the growth of distal human pulmonary artery smooth muscle cells (PASMC) isolated under standard normoxic conditions (PASMC(norm)). By contrast, a subpopulation of PASMC, isolated through survival selection under hypoxia was found to proliferate in response to hypoxia (PASMC(hyp)). We sought to investigate the ...
Min Robert J - - 2012
PurposeTo conduct a pilot study to demonstrate a novel method of using a proprietary cyanoacrylate (CA) for closure of superficial veins. MATERIALS AND METHODS: Right and left superficial epigastric veins from two swine models were utilized due to the vein's similarities with the human great saphenous vein. Under ultrasound guidance, ...
Kudlicka Jaroslav - - 2012
Purpose: Patency of mature vascular access for hemodialysis is mostly limited by the growing stenoses leading to acute access thrombosis. The therapy of choice is usually percutaneous balloon angioplasty (PTA). However, PTA injures the vessel wall and subsequent re-stenosis develops faster than de novo stenosis. Therefore, the key is in ...
Hosokawa Seiki - - 2012
PURPOSE: To explore the optimal contrast material (CM) concentration for distinguishing CM, carotid stent (CS), and neck components in cone-beam computed tomography (CBCT) during carotid angiography (CBCT-CA). MATERIALS AND METHODS: A neck phantom containing CS and contrast-filled imitation vessels of 9 mm diameter was scanned using CBCT. CM (300 mgI/ml) was used ...
Imre Nurcan - - 2012
PURPOSE: The aim of this study was to evaluate the number, course, width and location of nutrient artery canals of the femur by using multidetector computed tomography (MDCT). METHODS: Sixty-six adult (35 right and 31 left) dry femurs were included in this study and scanned by MDCT. Nutrient artery canals ...
Tabak Benjamin - - 2012
Bicaval dual lumen catheters improve the efficiency of veno-venous extracorporeal membrane oxygenation by minimizing recirculation with an innovative design, which requires precise placement of three catheter ports in the superior vena cava, right atrium, and inferior vena cava, respectively. However, the exact position of these catheter ports is usually not ...
Di Filippo A - - 2012
BACKGROUND: This study aimed to analyze nerve trunk anatomy in the infraclavicular fossa and to correlate these data with the most common anthropometric parameters. METHODS: A Mylab 30 Gold (Esaote) and the linear transducer LA523 (7.5 MHz frequency) were used. The probe was oriented according to a parasagittal plane, parallel ...
Zanotti-Fregonara Paolo - - 2012
PURPOSE: Quantitative neuroreceptor positron emission tomography (PET) studies often require arterial cannulation to measure input function. While population-based input function (PBIF) would be a less invasive alternative, it has only rarely been used in conjunction with neuroreceptor PET tracers. The aims of this study were (1) to validate the use ...
Kunakornsawat Sombat - - 2012
STUDY DESIGN:: A cadaveric retrospective study. OBJECTIVE:: To verify the variation of tributaries draining into the iliac system at the lumbosacral junction. SUMMARY OF BACKGROUND DATA:: Special attention to vascular anatomy at the great venous bifurcation during anterior lumbar surgery is needed as more tributaries may increase the rate of ...
Zimmermann Alexander - - 2012
Purpose: Indocyanine green (ICG) fluorescence angiography is used to evaluate tissue perfusion in many different medical fields. This study aims to evaluate the value of ICG angiography in the determination of tissue perfusion in the PAD lower extremities. Material and methods: In a prospective clinical study, ICG angiography was used ...
Dilauro M D - - 2012
AIM: To review the literature on the use of prophylactic balloon occlusion alone and in conjunction with arterial embolization of the internal iliac arteries in women with placenta accreta. MATERIALS AND METHODS: The PubMed, MEDLINE, CINAHL, EMBASE, and Cochrane Library databases were searched for keywords related to this technique and ...
Razavi Hedi - - 2012
Understanding mechanisms causing pulmonary vascular disease (PVD) frequently requires a thorough understanding of the underlying structural changes in the pulmonary circulation. Animal models have been used extensively to study different forms of PVD but conventional experimental techniques are limited in their ability to allow the study of the whole pulmonary ...
Montalcini T - - 2012
The mechanisms of vascular remodeling have attracted great interest since it is a phenomenon related to cardiovascular diseases. We would like to examine studies that contributed to clarify the remodeling mechanisms, to explore the different faces of atherosclerosis process. A number of invasive and non-invasive vascular assessment methods were developed, ...
Haggerty Jay Ezra - - 2012
The falciform artery (FA) is a branch of the middle or left hepatic artery that runs within the falciform ligament and supplies the periumbilical soft tissue of the abdomen. A 55-year-old man with hepatic carcinoid metastases underwent Yttrium-90 (Y-90) mapping. Tc-99m macroaggregated albumin (MAA) uptake in the anterior abdominal wall, ...
Mohammadzadeh Ali - - 2012
The use of noninvasive assessment tools such as multi-slice CT coronary angiography (MSCT-CA-CA) is recently considered mainly because it offers safety, patient convenience, and faster performance. The aim of the present study was to determine the ability of MSCT-CA-CA for the detection of significant stenoses in the coronary arteries, in ...
Ahmed Mohamed N - - 2012
Hypoxia leads to free radical production, which has a pivotal role in the pathophysiology of pulmonary hypertension (PH). We hypothesized that treatment with extracellular superoxide dismutase (EC-SOD) could ameliorate the development of PH induced by hypoxia. In vitro studies using pulmonary microvascular endothelial cells showed that cells transfected with EC-SOD ...
Myers Kelly S KS Translational and Molecular Imaging Institute, Mount Sinai School of Medicine, New York, New York 10029, - - 2012
A prospective, multicenter (18)fluorine-fluorodeoxyglucose ((18)F-FDG) positron emission tomography (PET)/computed tomography (CT) imaging study was performed to estimate the correlations among arterial FDG uptake and atherosclerotic plaque biomarkers in patients with peripheral artery disease. Inflammation within atherosclerotic plaques is associated with instability of the plaque and future cardiovascular events. Previous studies ...
Laurent Pierre-Eloi - - 2011
INTRODUCTION: Postmortem computed tomography can easily demonstrate gas collections after diving accidents. Thus, it is often used to support the diagnosis of air embolism secondary to barotrauma. However, many other phenomenons (putrefaction, resuscitation maneuvers, and postmortem tissue offgassing) can also cause postmortem gas effusions and lead to a wrong diagnosis ...
Sole A - - 2011
Reasons for performing study: Mesenchymal stem cells (MSCs) are commonly injected intralesionally for treatment of soft tissue injuries in the horse. Alternative routes of administration would be beneficial for treatment of lesions that cannot be accessed directly or to limit needle-induced iatrogenic damage to the surrounding tissue. Objectives: The purpose ...
Khaleel Maseeha S - - 2012
Coronary artery disease is the single leading cause of death in the United States. Commonly it is treated with coronary bypass grafting using the saphenous vein (SV) or internal mammary artery (IMA) as a conduit. Unfortunately, the SV has much lower patency rates compared with the IMA. Several hypotheses exist ...
Haegelen C - - 2011
PURPOSE: Understanding the vascular variability of the inferior temporal occipital regions is essential for microsurgical approaches to this cerebral zone. To this end, we carried out a microanatomical study of the inferior temporal cortical branches of the posterior cerebral artery (PCA) in order to define their vascularisation territories. METHODS: We ...
AbuRahma Ali F - - 2012
Several published studies with a small sample size have reported differing results of duplex ultrasound (DUS) utilizing different threshold velocities in detecting significant stenosis of superior mesenteric (SMA) or celiac arteries (CA). The present study is based on the largest number of mesenteric duplex/angiography correlations reported to date for the ...
Cross J - - 2011
BACKGROUND: Fenestrated endovascular aneurysm repair (FEVAR) is a technically challenging operation. The duration, blood loss, and risk of limb ischaemia, contrast-induced nephropathy and reperfusion injury are likely to be higher than after standard endovascular aneurysm repair (EVAR). Benefits of FEVAR over open repair may be less than those seen with ...
Siegman Ayelet - - 2011
Insufficient blood supply to the brain causes a transient ischemic attack (TIA) or a stroke. One of the causes to insufficient blood supply is cerebral artery stenosis. In this study, the feasibility of bioimpedance for monitoring such stenosis was analyzed. Simulations were conducted on a realistic numerical model of the ...
Tuinenburg Attie - - 2011
OBJECTIVE: Ischemic heart disease mortality is lower in hemophilia patients than in the general male population. As coagulation plays a role in the inflammatory pathways involved in atherogenesis, we investigated whether the clotting factor deficiency protects hemophilia patients from developing atherosclerosis. METHODS AND RESULTS: Coronary artery calcification, measured with multidetector-row ...
Singh Balwinder - - 2012
To perform a systematic review and meta-analysis to define the diagnostic performance of pulmonary embolism rule-out criteria (PERC) in deferring the need for D-dimer testing to rule out pulmonary embolism in the emergency department (ED). We searched EMBASE, MEDLINE, Scopus, Web of Knowledge, and all the evidence-based medicine reviews that ...
Scuteri Angelo - - 2012
In the context of obesity epidemic, no large population study has extensively investigated the relationships between total and abdominal adiposity and large artery structure and function nor have such relationships been examined by gender, by age, by hypertensive status. We investigated these potential relationships in a large cohort of community ...
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