Search Results
Results 401 - 450 of 1983
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Kim Dong-Kie - - 2010
Patients with hemophilia generally have a reduced frequency of coronary artery disease compared to the general population. As advances in the management of hemophilia have increased their life expectancy, the prevalence of coronary artery disease also has increased. However, there are no standard treatment guidelines for coronary artery disease in ...
Jensen Brian C - - 2010
Alpha-1-adrenergic receptors (α1-ARs) regulate coronary arterial blood flow by binding catecholamines, norepinephrine (NE), and epinephrine (EPI), causing vasoconstriction when the endothelium is disrupted. Among the three α1-AR subtypes (α1A, α1B, and α1D), the α1D subtype predominates in human epicardial coronary arteries and is functional in human coronary smooth muscle cells ...
Schwartz Jennifer - - 2011
This study aimed to determine whether participants reported altering health behaviors (physical activity, diet, and alcohol consumption) after seeing results from an electron-beam computed tomography (EBCT) scan for coronary artery calcium and reviewing these results with a physician. Clinicians attempt to motivate patients to control cardiovascular risk factors by adopting ...
Henein Michael Y - - 2011
Coronary artery stenoses have been shown in various trials to be moderated by treatment with statins. A similar effect on coronary artery calcification has not been demonstrated. We therefore undertook meta-analyses of trials examining the effect of statin treatment on coronary artery stenoses and coronary artery calcification. Literature searches identified ...
Uchida Yasumi - - 2010
Approximately 15% of acute coronary syndrome (ACS) cases have no significant coronary stenosis. Mechanisms underlying the attacks are, however, unknown. The clinical study had 254 patients with ACS; 38 patients (31 females and 7 males; aged 51.0 ± 8.0 years) had no significant coronary stenosis on angiography. They underwent a ...
Hernández-Romero Diana - - 2010
INTRODUCTION: Arterial calcification is a risk factor for atherosclerosis. Calumenin (CALU), a protein regulating proteins involved in coagulation and arterial calcification also has extracellular functions related to atherosclerosis. We recently described that CALU polymorphism A29809G was related to acenocoumarol requirements, and we wanted to evaluate its role in arterial calcification ...
Bashir Jamil - - 2010
: The Impella 5.0 is a peripherally inserted short-term left ventricular assist device. It is typically inserted through a large peripheral artery such as the common femoral artery. We describe both a graft technique and a purse-string technique in detail. : In the course of introducing this technology to our ...
Collins Joseph M - - 2010
This is the second in a 3-part series of medical graphics articles featuring the arterial anatomy of the pancreas as depicted on computed tomography images. Tumor encasement of the peripancreatic arteries is a hallmark of ductal adenocarcinoma.
Defillo A - - 2010
Although intracranial aneurysms have been associated with many hereditary collagen disorders, the incidence of brain aneurysms in pseudoxanthoma elasticum (PXE) appears to be exceedingly low and uncertain. We describing a rare case of a sisters with PXE who both developed intracranial aneurysms. This report supports the previously questioned hypothetical association ...
Zhang Long-Jiang - - 2010
BACKGROUND: Dual-source CT coronary angiography (CTCA) has been used to detect coronary artery disease; however, the factors with potential to affect its diagnostic accuracy remain to be defined. PURPOSE: To prospectively evaluate the accuracy of dual-source CTCA in diagnosing coronary artery stenosis according to conventional coronary angiography (CAG), and the ...
Delgado Karsen - - 2010
To examine the quality of cardiac imaging done by multislice computed tomography (MSCT) and its ability to correctly identify significantly occluded segments of coronary arteries compared with quantitative coronary angiography. Databases searched were CINAHL, MEDLINE, EBSCO, Academic Search Premier, and Web of Science and Health Source: Nursing/Academic edition. Keywords used ...
Gurbel Paul A - - 2010
High platelet reactivity has been linked to recurrent ischemic events in patients treated with conventional dual antiplatelet therapy, in patients with arterial diseases and particularly in patients treated with coronary artery stenting. The limitations of clopidogrel have served as a major rationale for the development of new P2Y(12) blockers that ...
Paraskevas G - - 2010
The accessory internal thoracic artery is a relatively large branch of the initial part of the internal thoracic artery, which was found in 4.54% of 22 cadavers studied in the Institute of Anatomy of the Medical School of Aristotle University of Thessaloniki. The course of this artery lies usually in ...
Weiss Sandra A - - 2010
Diastolic compression of the coronary arteries is a rare and likely acquired finding. Previous reports hypothesized that the artery becomes compressed against epicardial and pericardial scarring during ventricular filling, which leads to reduced coronary blood flow and clinical ischemia. We present two cases of isolated diastolic coronary artery compression resulting ...
Nazeri Iraj - - 2010
The main aim of our study was to investigate the influence of calcification on the accuracy of 64-slice computed tomography for identification of significant coronary artery disease. A contrast-enhanced 64-slice computed tomography was performed prior to invasive coronary angiography in 168 consecutive patients with suspected coronary artery disease. All coronary ...
Krabatsch Thomas - - 2010
Coronary artery perforation is a rare complication of percutaneous coronary intervention, but can result in cardiac tamponade and is thus potentially life-threatening. This report describes a rare case of epimyocardial haematoma formation after coronary perforation resulting in a functional mitral stenosis in a patient with coronary bypass grafting in his ...
Nerantzis Christos E - - 2011
The purpose of the study was to examine the anatomical variations of the sinus node artery (SNA). Gross anatomical examination, angiographic evaluation and if necessary dissection were performed in 200 human hearts derived from victims of various accidents. The SNA was a branch of the right coronary artery in 118 ...
Donati Olivio F - - 2011
To prospectively determine the best cut-off value of stenosis degree for low-dose computed tomography coronary angiography (CTCA) to predict the hemodynamic significance of coronary artery stenoses compared to catheter angiography (CA) using a cardiac magnetic resonance based approach as standard of reference. Fifty-two patients (mean age, 64±10 years) scheduled for ...
Wang Tzung-Dau - - 2010
To elucidate which measurement of epicardial adipose tissue (EAT) best reflects its atherogenic risk, we examined the associations between different EAT measurements and various atherosclerotic parameters of the entire coronary tree and individual coronary arteries. This study included 224 consecutive patients underwent multidetector computed tomography before diagnostic coronary angiography. Regional ...
Nagao Michinobu - - 2011
We attempted to assess coronary artery flow using adenosine-stress and dual-energy mode with dual-source CT (DE-CT). Data of 18 patients with suspected coronary arteries disease who had undergone cardiac DE-CT were retrospectively analyzed. The patients were divided into two groups: 10 patients who performed adenosine stress CT, and 8 patients ...
Yerramasu Ajay - - 2011
Non-invasive assessment of coronary artery patency has been attempted with different imaging modalities over the last few decades. The continuous motion of the heart, the respiratory movement, together with the small and tortuous nature of the coronary arteries, made this a technically challenging task. Over the last decade, significant advances ...
Cicala Silvana - - 2010
The feasibility of coronary function estimation by single photon emission computed tomography (SPECT) has been recently demonstrated. The aim of this study was to apply SPECT imaging in patients with previous Kawasaki disease (KD) to assess the coronary functional status at long-term follow-up of the acute phase of the disease. ...
Danzi Gian Battista - - 2010
Coronary artery aneurysm is an uncommon disease. It is defined as a coronary artery dilatation, exceeding the diameter of the normal adjacent segment or the diameter of the patient's largest coronary vessel by 1.5 to 2 times. Coronary artery aneurysms are typically diagnosed by coronary angiography. The prognosis of coronary ...
Renapurkar Rahul - - 2010
Coronary computed tomography angiography is being increasingly used for evaluation of coronary artery anatomy. We present a case report in which coronary computed tomography angiography detected an uncommon intracavitary course of the right coronary artery.
Tu Shengxian - - 2010
BACKGROUND: Accurate on-line assessments of vessel dimensions are of utmost importance for selecting the appropriate stent size in coronary interventions. Recently a new three-dimensional quantitative coronary angiography (3D QCA) analytical software package was developed to accurately assess the vessel dimensions for the planning and guidance of such coronary interventions. This ...
Rigattieri Stefano - - 2010
We describe the case of a 78-year-old patient, admitted to our hospital with an acute coronary syndrome. Coronary angiography showed multivessel coronary artery disease and an anomalous coronary vessel branching from the right coronary artery. After successful percutaneous revascularization and discharge, the anomalous vessel was diagnosed by contrast enhanced 64-multidetector ...
Turner Daniel R - - 2010
Coronary reimplantation during arterial switch operation (ASO) may affect coronary artery growth and function during childhood. The purpose of this study was to assess coronary artery diameter and regional myocardial blood flow (MBF) and myocardial flow reserve (MFR) in children after neonatal ASO. We measured proximal diameters of left anterior ...
Huang Hsiao-Ching - - 2010
Coronary artery fistula arising from both the right coronary artery and the circumflex coronary artery is rare. A 28-year-old woman with non-insulin-dependent diabetes mellitus and end-stage renal disease who was on regular hemodialysis complained of recent progressive exertional dyspnea. Congestive heart failure was diagnosed during work-up for simultaneous kidney and ...
Zheng Minwen - - 2010
Spontaneous coronary artery dissection is usually diagnosed by an urgent coronary angiography. We report a case of spontaneous coronary artery dissection of the left anterior descending coronary artery, which was diagnosed by dual-source computed tomography. Subsequent coronary angiography confirmed the result. Computed tomographic coronary angiography can be a complementary diagnostic ...
Millán Mònica - - 2010
Acute ischemic stroke is a major cause of morbidity and mortality in Europe, North America, and Asia. Its treatment has completely changed over the past decade with different interventional approaches, such as intravenous trials, intra-arterial trials, combined intravenous/intra-arterial trials, and newer devices to mechanically remove the clot from intracranial arteries. ...
Abe Osamu - - 2010
Coronary artery wall echogenicity increases on echocardiograms during the acute phase of Kawasaki disease (KD). According to this background, echogenicity of the coronary artery wall in patients with KD is quantified by using integrated backscatter (IB) analysis. IB analysis is a quantitative method for evaluating echogenicity. We examined the value ...
Kaimovitz Benjamin - - 2010
We have previously reconstructed the entire coronary arterial tree of the porcine heart down to the first segment of capillaries. Here, we extend the vascular model through the capillary bed and the entire coronary venous system. The reconstruction was based on comprehensive morphometric data previously measured in the porcine heart. ...
Shantouf R - - 2010
AIMS: In individuals with chronic kidney disease (CKD), including those undergoing maintenance hemodialysis (MHD), coronary artery calcification (CAC) is common. We hypothesized that, in MHD patients, intake of the calcium-free phosphate binder sevelamer is associated with lower CAC compared to calcium-based phosphate binders (CBPB). MATERIAL AND METHODS: This is a ...
Iyisoy Atila - - 2010
Woven coronary artery is an extremely rare and is still not a clearly defined coronary anomaly in which epicardial coronary artery is divided into multiple thin channels at any segment of the coronary artery, and subsequently, these multiple channels merge again in a normal conduit. A few cases have been ...
Kogon Brian E - - 2010
Many modifications of the Bentall technique have been described since its introduction in 1968. The crucial phases of the operation include the re-establishment of coronary flow and control of intraoperative hemorrhage. Based on their experience with Blalock-Taussig shunts, the proximal take-off of which is at the innominate/right subclavian artery junction, ...
Xu Weixian - - 2010
BACKGROUND: Previous studies of job strain and coronary heart disease (CHD) have produced mixed findings. We aimed to examine the association between job stress evaluated by the effort-reward imbalance (ERI) model and coronary atherosclerosis assessed by coronary angiography in a Chinese sample. METHODS: Three-hundred twenty participants accepting coronary angiography for ...
Tonino Pim A L - - 2010
The purpose of this study was to investigate the relationship between angiographic and functional severity of coronary artery stenoses in the FAME (Fractional Flow Reserve Versus Angiography in Multivessel Evaluation) study. It can be difficult to determine on the coronary angiogram which lesions cause ischemia. Revascularization of coronary stenoses that ...
Durán A C - - 2010
This study is the first to report the occurrence of intimal thickening of coronary arteries in a holocephalan, namely the rabbitfish, Chimaera monstrosa. The sample studied consisted of five hearts from rabbitfish with body weights ranging between 12 g and 1116 g. The specimens were fixed in formalin, in methanol:acetone:water ...
Chazen J Levi - - 2010
The aim of this study was to compare effective radiation doses between prospective and retrospective electrocardiographic gating during coronary computed tomographic angiography for coronary artery bypass grafting evaluation. Fifty consecutive coronary computed tomographic angiographic exams for coronary artery bypass grafting evaluation, 25 prospectively gated and 25 retrospectively gated, were reviewed ...
Okamura Atsunori - - 2010
Terumo intravascular ultrasound (IVUS) ViewIT facilitates IVUS-guided wiring in percutaneous coronary intervention (PCI) for chronic total occlusion (CTO) due to its low profile and surface coating. In PCI for CTO, the first guidewire is sometimes inserted into the subintimal space, and observation by IVUS through the first guidewire in the ...
Mitchell Grant R - - 2010
Coronary arterial microfistulae are abnormal connections between one or multiple coronary arteries and any cardiac chamber, vein, or thoracic vessel. They comprise a subsection of coronary fistulas where the abnormal connections are diffuse, as opposed to the larger, more common single vessel varieties. Most of these anomalies are detected incidentally ...
Gayed Isis W - - 2010
BACKGROUND: Evaluate the significance of coronary arteries calcifications detected using contrast-enhanced chest computed tomography (CECCT) scans. METHODS: A total of 145 patients who underwent both CECCT and gated stress myocardial perfusion imaging (MPI) within 2 weeks were included. The chest CT scans were reviewed for the presence of coronary artery ...
Panduranga Prashanth - - 2010
Coronary artery anomalies are uncommon and the occurrence of a single coronary artery with no structural heart disease is very rare. We report a hitherto undescribed type of single coronary artery originating from the right aortic sinus giving rise to left main coronary artery and right coronary artery that was ...
Teis Albert - - 2010
The aims of this study were to determine the incidence of coronary artery perforation by intracoronary guide wires during angioplasty, to identify associated factors, and to assess outcomes. The retrospective analysis covered 4,353 consecutive procedures, corresponding to a total 6,994 lesions treated over a period of 8 years. Coronary artery ...
Lumia D - - 2010
Among malignant tumors of the heart, primary malignant lymphomas are unusual and they are typically non-Hodgkin's B-cell cancers. A 73-year-old man affected by non-Hodgkin lymphoma (NHL) treated with four cycle of chemotherapy and radiotherapy was admitted to the Emergency Department for chest pain. Echocardiography showed a mass inside the right ...
Poudel P P - - 2010
Circulus arteriosus (Circle of Willis) is an anastomotic ring which unites the internal carotid and vertebrobasilar systems. It slows down the blood before it reaches the brain and helps in collateral circulation. Anatomic study reveals the variation in the pattern and calibre of vessels which make up the circulus arteriosus. ...
Verhagen Sandra N - - 2011
Perivascular adipose tissue surrounds (coronary) arteries and may be involved in local stimulation of atherosclerotic plaque formation. Epicardial adipose tissue, the adipose tissue within the pericardium, is a frequently used measure of coronary perivascular adipose tissue and can be quantified with echocardiography, computed tomography (CT) and magnetic resonance imaging (MRI). ...
Bouchot Olivier - - 2010
BACKGROUND: A bloodless field is important for visualizing relevant anatomical structures and facilitating construction of high-quality coronary anastomoses during off-pump coronary artery bypass graft surgery (OPCABG). Currently employed devices can damage target arteries as well as myocardium and are not uniformly effective, especially with diseased arteries. METHODS: LeGoo (Pluromed, Woburn, ...
Bigdeli Amir K - - 2010
Among coronary artery anomalies, single coronary artery is one of the rarest anomalies. Pulmonary origins of the coronary arteries, coronary artery fistulae, and anomalous aortic origins of the coronary arteries are the most common anomalies requiring surgical intervention. In this case, we describe the performance of bypass grafting after unsuccessful ...
Andrade Jason G - - 2010
Congenital coronary artery anomalies have been reported in fewer than 1.3% of patients undergoing coronary angiography. Most commonly, they take the form of an anomalous origin of one of the major epicardial vessels or variations in their epicardial course. The presence of an intracavitary course of an intact epicardial coronary ...
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