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Quinn Rachael W - - 2011
Because of cryopreserved heart valve-mediated immune responses, decellularized allograft valves are an attractive option in children and young adults. The objective of this study was to investigate the performance and morphologic features of decellularized pulmonary valves implanted in the right ventricular outflow tract of juvenile sheep. Right ventricular outflow tract ...
Gacević Milomir - - 2011
Soft tissue defects in the distal third of the lower leg are persistent and constitute a major problem in the reconstructive surgery. This study presents an analysis of the anatomical vascularization filed of ascending branch of the peroneal artery ramus perforans (PARS). The aim of this study was to assess ...
- - 2011
Abstract Our goal was to gain a better understanding of the femoral vessel anatomy as it relates to central venous cannulation. The primary objective of this study was to use bedside ultrasonography to determine the amount of exposed femoral vein at three sites corresponding to surface anatomy of the landmark-based ...
Shahzad Rafia - - 2011
Objective: To compare magnetic resonance angiography (MRA) with Intra-arterial digital subtraction angiography (IA-DSA) in detection and characterization of intracranial aneurysms. Study Design: Comparative cross-sectional study. Place and Duration of Study: Department of Diagnostic Imaging, Lahore General Hospital, Lahore, from January to June 2007. Methodology: Thirty patients presented with aneurysmal subarachnoid ...
Schoettler Jan - - 2011
Saphenous vein graft patency is frequently limited by degeneration. Experimental studies have indicated that rigid external support of venous grafts by a flexible, tubular nitinol mesh may improve graft patency. The study presented was part of a prospective, randomized, multicenter first-in-man trial investigating the safety and effectiveness of nitinol-supported venous ...
Dasari Tarun - - 2011
Peripheral vascular disease is highly prevalent post heart transplantation (HTx). The prevalence of abdominal aortic aneurysms (AAA) post HTx ranges from 1.1-10%. We performed a Pub Med, EMBASE and Cochrane review search to identify articles on AAA post HTx. Data gathered from published data included: risk factors, progression of the ...
Inaba Yoichi - - 2011
OBJECTIVES: We conducted the meta-analysis to compare the diagnostic accuracies of carotid plaque and carotid intima-media thickness (CIMT) measured by B-mode ultrasonography for the prediction of coronary artery disease (CAD) events. METHODS: Two reviewers independently searched electronic databases to identify relevant studies through April 2011. Both population-based longitudinal studies with ...
Staalsø Jonatan Myrup - - 2011
OBJECTIVE: The intron 16 insertion/deletion (I/D) polymorphism in the angiotensin-converting enzyme (ACE) gene has been associated with rupture of intracranial aneurysms, but the effect of haplotypes within ACE has not been studied. This study investigated whether ACE haplotypes including the I/D polymorphism are associated with aneurysmal subarachnoid hemorrhage. METHODS: The ...
Foin Nicolas - - 2011
We report the case of a 64-year-old man treated for stable angina with two bare-metal stents in the proximal-mid segment of the left anterior descending artery at the bifurcation with the first diagonal and second septal branches without final kissing balloon dilatation. Seven months later he complained of recurrent angina. ...
Reineke David - - 2011
OBJECTIVE: Comparison of arterial and venous coronary artery bypass flow measurements using 3-T magnetic resonance (MR) phase contrast in correlation with intraoperative Doppler flow measurements. METHODS: Fifty-six coronary bypasses (right coronary artery n=18, left internal mammary artery to left anterior descending artery n=16, marginal artery n=7, circumflex artery n=7, diagonal ...
Beleznai Timea T Department of Pharmacology, University of Oxford, Mansfield Road, Oxford OX1 3QT, - - 2011
Agonists that evoke smooth muscle cell hyperpolarization have the potential to stimulate both local and conducted dilation. We investigated whether the endothelium-dependent vasodilators acetylcholine (ACh) and SLIGRL stimulated conducted dilation and whether this was altered by deficiency in apolipoprotein E (ApoE(-/-)). Isolated mesenteric arteries were cannulated, pressurized, and precontracted with ...
Monjas-Cánovas Irene - - 2011
INTRODUCTION AND OBJECTIVES: Our aim was to study the radiological anatomy of the ethmoidal arteries. METHODS: A descriptive study was performed including CT images of 20 cadaver heads. The specimens were perfused with a radiopaque material and various anatomical parameters were analysed. RESULTS: The anterior ethmoidal artery was found in ...
Miller Anna N - - 2011
Background:The purpose of this study was to quantify the various arterial contributions to the talus with use of magnetic resonance imaging (MRI).Methods:The arterial anatomy of the talus was studied in ten pairs of fresh-frozen cadaver limbs with use of gadolinium-enhanced MRI in addition to gross dissection following latex injection. MRI ...
Lorente Leonardo - - 2011
Abstract Data on catheter-related bloodstream infection (CRBSI) in cubital artery access are scarce. Thus, the objective of this study was to compare the incidence of CRBSI in a large series of patients with femoral or cubital artery catheters. We found 11 events of CRBSI in 1085 femoral artery catheters during ...
Kennelly Máireád M - - 2011
OBJECTIVE: To establish reference ranges for AoI Doppler indices in appropriately grown fetuses (AGA) from longitudinal data. To document the longitudinal trends in a cohort of SGA (small for gestational age) fetuses with a normal umbilical artery Doppler and an abnormal umbilical artery Doppler (IUGR). METHODS: AoI Doppler reference ranges ...
Bigalke Boris - - 2011
Vascular lesion formation and collagen presentation are key events leading to the development of vulnerable plaques. Glycoprotein VI (GPVI) significantly contributes to plaque-associated collagen binding and thrombus formation. The aim of this study was to image endothelial injury using fluorescence-labelled GPVI-Fc (Fc, fragment crystallized), a soluble form of GPVI that ...
Bamberg Fabian - - 2011
We conducted a systematic review and meta-analysis to determine the predictive value of findings of coronary computed tomography angiography for incident cardiovascular events. Initial studies indicate a prognostic value of the technique; however, the level of evidence as well as exact independent risk estimates remain unclear. We searched PubMed, EMBASE, ...
Barber Tracie J - - 2011
Computational fluid dynamics simulation of stenosed arteries allows the analysis of quantities including wall shear stress, velocity, and pressure; detailed in vivo measurement is difficult yet the analysis of the fluid dynamics related to stenosis is important in understanding the likely causes and ongoing effects on the integrity of the ...
Wu Xue - - 2011
This study is designed to make a novel cell seeding stent and to evaluate reendothelialization and anti-restenosis after the stent implantation. In comparison with cell seeding stents utilized in previous studies, Mesenchymal stem cells (MSCs) have advantages on promoting of issue repair. Thus it was employed to improve the reendothelialization ...
Kawamata Takakazu - - 2011
We investigated whether postoperative hyperperfusion in moyamoya disease can be predicted using intraoperative laser Doppler flowmetry and/or thermography. A prospective study was conducted on 27 patients (39 hemispheres) with moyamoya disease who underwent superficial temporal artery-middle cerebral artery (STA-MCA) bypass. During surgery, regional cerebral blood flow (rCBF) was measured with ...
Yorgun Hikmet - - 2011
Human epicardial adipose tissue (EAT) is a type of visceral adipose tissue functioning as an endocrine organ by secreting hormones and adipocytokines which have an important role in the atherosclerotic process. In this study, we aimed to assess the relationship between EAT measured by dual source multidetector computed tomography (MDCT) ...
Vanlangenhove Peter - - 2011
PURPOSE: This was a prospective, randomized, blinded comparative study of the efficacy and safety of two different n-butyl-2-cyanoacrylates (NBCAs) for embolization of varicoceles. METHODS: A total of 112 insufficient spermatic veins (left-sided, n = 84; right-sided, n = 28) that were diagnosed in 83 adult males were prospectively randomized for blinded embolization with NBCA ...
Guhathakurta Soma - - 2011
Several options are available for right ventricular outflow tract reconstruction, including commercially available bovine jugular vein and cryo-preserved homografts. Homograft non-availability and the problems of commercially available conduits led us to develop indigenously processed bovine jugular vein conduits with competent valves. They were made completely acellular and strengthened by non-conventional ...
Rosa Marcelo Pereira da - - 2011
OBJECTIVE: To identify carotid stenosis (CS) prevalence and potential mortality predictors in individuals undergoing elective coronary artery bypass grafting (CABG). METHODS: Cohort study including 393 scheduled for CABG. All patients underwent a color Doppler ultrasound study of the carotid arteries prior to CABG and were assessed for morbidity and mortality ...
Arnold Ryan W - - 2011
The objective of our study was to determine the rate of pulmonary embolism (PE) on pulmonary CT angiography (CTA) in children and adolescents visiting adult-centered community hospitals. We also investigated alternative diagnoses that may account for presenting symptoms. We identified consecutive children and adolescents (age ≤ 19 years) who underwent ...
Conti Michele - - 2011
Abstract Purpose: To quantitatively evaluate the impact of carotid stent cell design on vessel scaffolding by using patient-specific finite element analysis of carotid artery stenting (CAS). Methods: The study was organized in 2 parts: (1) validation of a patient-specific finite element analysis of CAS and (2) evaluation of vessel scaffolding. ...
La Favor J D - - 2011
Study design:Cross-sectional comparison, control group.Objectives:To investigate the relationship between carotid arterial stiffness and circulating markers for cardiovascular disease (CVD) in spinal cord-injured (SCI) subjects compared with able-bodied (AB) individuals.Setting:University Research Laboratory, University of Louisville.Methods:SCI (n=14) and AB (n=13) subjects between 20-52 years of age were recruited to participate in the ...
Fuchs Shmuel - - 2011
OBJECTIVES: The aim of this study was to assess the longitudinal topographical relationships between minimal luminal area (MLA) sites and plaques with the most vulnerable characteristics using radiofrequency-based virtual histology intravascular ultrasound analysis. METHODS: We analyzed 69 native coronary artery segments with de-novo lesions (>50% stenosis) obtained from 50 patients ...
Tajik Parvin - - 2011
Background: Small autopsy studies and clinical practice indicated that carotid atherosclerosis develops in an asymmetrical helical pattern coinciding with regions of low shear stress. We investigated the distribution of carotid atherosclerosis as determined by maximum carotid intima-media thickness (CIMT), to assess if we could confirm this atherosclerotic configuration across various ...
Khanafer Khalil - - 2011
OBJECTIVE: The purpose of this study is to provide measurements of the elastic modulus of the aortic wall of ascending thoracic aortic aneurysms for different ranges of pressure (physiologic, hypertensive). In addition, pre-failure stress, taken as the peak stress obtained before specimen failure, was recorded for each test. METHODS: Ninety-seven ...
Sinn Stefan - - 2011
Subacute stent thrombosis, caused by undesired interactions between blood and the stent surface, is a major concern in the first few weeks following coronary artery stent implantation. The aim of this study was to establish a novel in vitro model for hemocompatibility testing of coronary artery stents according to ISO ...
Naito Ryo - - 2011
Aortic dissection is a life-threatening cardiovascular disease with high in-hospital mortality. However, the risk factors of aortic dissection have not been fully elucidated. Obstructive sleep apnea (OSA) has been increasingly recognized as an independent cardiovascular risk factor. Among the underlying mechanisms to explain the association between OSA and cardiovascular morbidity, ...
Dellegrottaglie Santo - - 2011
BACKGROUND: Markers of collagen turnover have not been well studied in the context of cardiovascular disease in patients with chronic kidney disease (CKD). We investigated the associations between serum markers of collagen turnover [N-terminal procollagen type 3 propeptide (PIIINP) and carboxy-terminal telopeptide (C1TP)] and both pulse wave velocity (PWV) and ...
Monica Lind P - - 2011
BACKGROUND AND OBJECTIVE: Bisphenol A (BPA) levels have previously been associated with coronary heart disease (CHD). Since CHD is an atherosclerotic disease, we investigated if circulating levels of BPA and phthalate metabolites are related to atherosclerosis in a cross-sectional study. METHODS: In the population-based Prospective Investigation of the Vasculature in ...
Silva Liana Ferreira Alencar - - 2011
To study the distribution of the branches of the splenic artery and relate it to the radiological study of its intraparenchymal distribution, aiming to use this knowledge in partial splenectomy. In the macroscopic study, we used 60 human spleens which the splenic artery dissected from its origin to observe the ...
Tanasi C M - - 2011
This case has multiple anatomical variants of the inferior vena cava and its branches which determine the appearance of associated arterial abnormalities. The study has been performed on a female corpse, aged average 60, with no other morphological changes of the blood vessels or retroperitoneal viscera. The method we used ...
Wang T - - 2011
The mechanisms governing pulmonary gas exchange were heavily debated at the start of the 20th century when Christian Bohr provided measurements of lung and blood gases as well as rational arguments in favour of oxygen being secreted actively from the lung gas to the blood within vertebrate lungs. The concept ...
Donnelly J - - 2011
Nitric oxide (NO) is a potent vasodilator that regulates pulmonary vascular tone. During ascent to high altitude, pulmonary vascular tone increases leading to pulmonary hypertension. To explore the mechanisms underpinning this effect, we investigated the relationship between exhaled NO ( [Formula: see text] ; nmHg) and pulmonary artery systolic pressure ...
Park Hyun - - 2011
BACKGROUND: To describe preliminary experiences and the procedural details of retrieval thrombectomy using a self-expanding and fully retrievable Solitaire stent (ev 3 Inc., CA, USA) in acute ischemic stroke (AIS) patients with large artery occlusions. METHODS: Eight patients with AIS were treated by mechanical thrombectomy using a self-expanding, fully retrievable ...
Dodd Benjamin R - - 2011
Abdominal aortic aneurysm (AAA) is a common disease and a major cause of death through rupture, the risk of which increases with aneurysm size. There is approximately a 5 year interval from when aneurysmal dilatation develops until it reaches a size where surgery is indicated. Slowing, or arresting, aneurysm growth ...
Wedgwood Stephen - - 2011
We previously demonstrated that superoxide and H(2)O(2) promote pulmonary arterial vasoconstriction in a lamb model of persistent pulmonary hypertension of the newborn (PPHN). Because extracellular superoxide dismutase (ecSOD) augments vasodilation, we hypothesized that H(2)O(2)-mediated ecSOD inactivation contributes to pulmonary arterial vasoconstriction in PPHN lambs. ecSOD activity was decreased in pulmonary ...
Marks Joshua A - - 2011
Endovascular treatment of post-traumatic pseudoaneurysms has become a viable, less invasive option when compared to open repair. Due to the relative youth of this technology, studies have yet to be concluded on the long-term patency of stent grafts in this population. For this reason, concern exists with endovascular stent placement ...
Zhang Duan-Zhen - - 2011
Detection of pulmonary vasoreactivity is important for the evaluation of patient with pulmonary arterial hypertension (PAH). The present study aimed to investigate the acute hemodynamic responses to adenosine and iloprost in patients with congenital heart defects (CHDs) and severe PAH. From Mar 2007 to Nov 2009, 75 patients with severe ...
May-Newman Karen - - 2011
Aortic valve commissural fusion is a process in which fibrous tissue is deposited at the aortic valve commissures, creating adhesion between leaflets and preventing opening. Fusion has recently been associated with the implantation of left ventricular assist devices (VADs), affecting upwards of 50% of patients in recent studies. Aortic incompetence ...
Birincioglu Ismail - - 2011
There are few anatomical studies on hepatic vein compared to hepatic artery and portal vein. The aim of this study is to clarify the branching patterns of hepatic veins, supra and infra-diaphragmatic course of suprarenal inferior vena cava and its relation with the liver. Between March and May 2008, 103 ...
Gessler Tobias - - 2011
Inhaled treprostinil is a safe and well-tolerated approved pharmaceutical for the treatment of pulmonary arterial hypertension. In a series of open-label studies and in the pivotal trial with 253 patients, this long-acting prostacyclin analogue demonstrated pronounced pulmonary selectivity of vasodilatory effects, improved physical capacity and excellent tolerability and safety following ...
Székely Andrea - - 2011
Measurement of the global end-diastolic volume index (GEDI) by transpulmonary thermodilution (TPTD) has become a useful technique for measuring preload in adults. This study aimed to investigate the hemodynamic changes in neonates during the postoperative period after arterial switch surgery. Over a 13-month period, the postoperative data of 12 neonates ...
Neto-Neves Evandro M - - 2011
: Up-regulated matrix metalloproteinases may be involved in the development of cardiomyocyte injury and the degradation of troponin associated with acute pulmonary thromboembolism. We examined whether pretreatment with doxycycline (a nonspecific matrix metalloproteinase inhibitor) protects against cardiomyocyte injury associated with acute pulmonary thromboembolism. : Controlled animal study. : University research ...
George Joseph - - 2011
Pulmonary arterial hypertension (PAH) is characterized by intimal lesions, right ventricular hypertrophy, and adventitial thickening of pulmonary arteries with progressive pulmonary hypertension. This investigation was aimed to examine the effects of transgenic expression of human matrix metalloproteinase-9 (MMP-9) in the pathogenesis of PAH. PAH was induced using serial subcutaneous administration ...
Mehra Manik - - 2011
Objective To investigate the impact of coil design on the distribution of the coil mass in a controlled in vitro experiment. A secondary objective was to study the relationship between angiographic occlusion, packing density and coil mass uniformity. Methods Seven silicon side wall aneurysm models were embolized in each arm ...
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