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Regenhardt Robert W - - 2013
Creation of a cranial window is a method that allows direct visualization of structures on the cortical surface of the brain. This technique can be performed in many locations overlying the rat cerebrum, but is most easily carried out by creating a craniectomy over the readily accessible frontal or parietal ...
Wang Xin - - 2013
: The medial sural artery perforator flap is a reliable cutaneous flap that can be used for soft-tissue reconstruction in the extremities. The purposes of this article are to fully document the vascular basis of the medial sural artery flap and to report its use in reconstruction of distal extremities. ...
Ramanathan P Kasi - - 2013
We report a case of the use of the GuideLiner catheter during transfemoral diagnostic angiography and intervention of an anomalous right coronary artery (RCA) after unsuccessful attempts to cannulate the RCA with other catheters. The GuideLiner catheter was successfully employed to coaxially engage the ostium of the RCA. Thrombotic disease ...
Shah Shreyansh - - 2013
Thrombosed aneurysms are difficult to visualize with digital subtraction angiography. We report a case of subarachnoid hemorrhage from a thrombosed ruptured aneurysm which was undetected on digital subtraction angiography but was visualized with cone beam volume CT. To our knowledge, this is the first report highlighting the utility of cone ...
Dohmen Pascal M - - 2013
There is a growing interest in minimally invasive access for aortic valve surgery. The upper hemi-sternotomy provides good aortic valve exposure, with numerous possible advantages. Nevertheless, some surgeons remain skeptical about limited access surgery because it is technically more demanding. Sutureless and rapid-deployment bioprostheses could alleviate these concerns by improving ...
Reiter Ursula U Division of General Radiology, Department of Radiology, Medical University of Graz, Graz, - - 2013
Three-dimensional (3D) magnetic resonance phase contrast imaging (PC-MRI) allows non-invasive diagnosis of pulmonary hypertension (PH) and estimation of elevated mean pulmonary arterial pressure (mPAP) based on vortical motion of blood in the main pulmonary artery. The purpose of the present study was to compare the presence and duration of PH-associated ...
Saake Marc - - 2012
BACKGROUND AND PURPOSE: The aim of our study was to evaluate flat detector computed tomography angiography with peripheral intravenous contrast material application (FD-CTA) for visualization of cerebral arteries in comparison with intravenous multidetector computed tomography angiography (CTA) and intraarterial digital subtraction angiography (DSA). METHODS: The study was approved by the ...
Papaioannou Vasilios - - 2012
Infected aneurysms of the pulmonary artery are a rare consequence of injected drug use. Hemoptysis of pulmonary arterial origin is also infrequent; however, the mortality is as high as 50%. We report here a case of hemoptysis in an intravenous drug user, caused by a pulmonary artery aneurysm due to ...
Hiro Matthew E - - 2012
A 73-year-old man receiving heparin developed a large hematoma in the first web after a routine blood draw. Color Doppler ultrasound demonstrated a pseudoaneurysm of the princeps pollicis artery. Ultrasound-guided compression resulted in successful thrombosis of the pseudoaneurysm.
Balocco Simone - - 2012
Purpose: Atheromatic plaque progression is affected, among others phenomena, by biomechanical, biochemical, and physiological factors. In this paper, the authors introduce a novel framework able to provide both morphological (vessel radius, plaque thickness, and type) and biomechanical (wall shear stress and Von Mises stress) indices of coronary arteries.Methods: First, the ...
Byrne Robert A - - 2012
The key feature defining transcatheter cardiovascular interventions is that access to the vessels and heart is achieved by arterial puncture with a needle, rather than surgical incision with a scalpel. However, arteriotomy and vessel closure are performed without direct visualization of the arterial wall, which risks vessel damage and bleeding. ...
Janiga Gábor - - 2012
In order to support the decisions of medical experts and to develop better stent designs, the availability of a simulation tool for virtual stenting would be extremely useful. An innovative virtual stenting technique is described in this work, which is directly applicable for complex patient-specific geometries. A basilar tip aneurysm ...
Bungay P - - 2012
The AnacondaTM is a modular bifurcated stent-graft of woven polyester and nitinol ring stents that has been commercially available since 2005. It was the first truly repositionable stent-graft and features a magnet wire contralateral limb cannulation system. It has excellent fixation and sealing properties and its ring stent construction results ...
Wan Lei - - 2012
It is never an easy thing to diagnose heart vascular disease only depending on the unenhanced postmortem computed tomography (PMCT). This article reported a case of sudden natural death after the complaint of anterior chest pain in which coronary artery calcification (CAC) was clearly displayed using PMCT scan. The entire ...
Choi Jeong-Im - - 2012
Ultrasound-guided cannulation of a large-bore catheter into the internal jugular vein was performed to provide temporary hemodialysis vascular access for uremia in a 65-yr-old woman with acute renal failure and sepsis superimposed on chronic renal failure. Despite the absence of any clinical evidence such as bleeding or hematoma during the ...
Cox Christian Warren - - 2012
Computed tomographic pulmonary angiography may be indeterminate in regions of slow arterial flow because of underlying lung disease. In this case, dynamic computed tomographic angiography of the pulmonary vasculature (dynamic CTPA) was used to confirm flow variation within the pulmonary arteries in regions of pulmonary fibrosis and excluded pulmonary embolism. ...
Biederman Robert W W - - 2012
We present a case of a 70-year-old woman with severe peripheral arterial disease presenting with celiac artery in-stent thrombosis diagnosed by transesophageal echocardiography (TEE). Routine assessment of the visceral arteries is not performed in most TEE studies. A review of the literature shows that the celiac and superior mesenteric arteries ...
Nakajima Koh - - 2012
OBJECTIVE: The purpose of this research was to contribute to minimizing arterial disruption during mandibular surgical procedures by clarifying the course of the arteries supplying the sublingual and submental regions. STUDY DESIGN: Heads of 75 human cadavers were dissected to identify the arterial supply of the sublingual and submental regions. ...
Dellimore Kiran - - 2012
A 19 mm diameter prototype bioprosthetic valve mounted in a cardiac pulse duplicator was characterized using Doppler echocardiography and qualitative flow visualization at a heart rate of 72 bpm. Analysis of the flow visualization images revealed that the prototype and control valve leaflets open symmetrically but close asymmetrically. The asymmetry ...
Laspas Fotios - - 2013
Congenital abnormalities of the coronary arteries have an incidence of 1%, and most of these are benign. However, a small number are associated with myocardial ischaemia and sudden death. Various imaging modalities are available for coronary artery assessment. Recently, multi-detector CT has emerged as an accurate diagnostic tool for defining ...
Yousry Mohamed - - 2012
Aortic valve calcification (AVC), even without haemodynamic significance, may be prognostically import as an expression of generalized atherosclerosis, but techniques for echocardiographic assessment are essentially unexplored. Two-dimensional (2D) echocardiographic recordings (Philips IE33) of the aortic valve in short-axis and long-axis views were performed in 185 consecutive patients within 1 week ...
Lameijer Charlotte M - - 2012
A 63-year-old male patient with a type B aortic dissection after the use of tadalafil, a phosphodiesterase type 5 inhibitor, is presented. The possible role of a novel predisposing factor-sexual activity combined with tadalafil-is reviewed. This report and three other cases add a new dimension to the known predisposing factors ...
Milewicz Dianna M - - 2012
Aortic aneurysms are a common clinical condition that can cause death due to aortic dissection or rupture. The association between aortic aneurysm pathogenesis and altered TGF-β signaling has been the subject of numerous investigations. Recently, a TGF-β-responsive microRNA (miR), miR-29, has been identified to play a role in cellular phenotypic ...
Kuhr Frank K - - 2012
Pulmonary arterial hypertension (PAH) is a severe and progressive disease that usually culminates in right heart failure and death if left untreated. Although there have been substantial improvements in our understanding and significant advances in the management of this disease, there is a grim prognosis for patients in the advanced ...
Młynarski Rafał - - 2012
Background: Multi-slice computed tomography (MSCT) can be useful before percutaneous mitral annuloplasty (PMA) procedures to visualize the relations between the mitral valve (MV), left circumflex artery (LCx) and coronary sinus (CS). Methods and results: We performed a 64-slice MSCT in 196 patients (109 male; age 56.6 ± 11.4) with suspected ...
Fogelstrand P - - 2012
In this review, we discuss the mechanisms behind the binding of low-density lipoproteins (LDL) to the arterial wall and how this interaction might be targeted to prevent atherosclerosis. An increasing body of evidence shows that accumulation of LDL in the vessel wall is a critical step in the development of ...
Patel Rohit - - 2012
Basilar artery aneurysm presenting a stroke is rare, and we present a case of this along with a discussion of the management options available.
Kharge Jayashree - - 2012
The breakage of a stent-delivery catheter at the shaft is a rare and dangerous complication during coronary intervention. We report a simple balloon technique for the successful retrieval, from within a guiding catheter, of both an unexpanded stent and its delivery system.
Kang Ning - - 2011
OBJECTIVESNeointimal hyperplasia and superimposed atherosclerosis are central to late vein graft failure following coronary artery bypass grafting. Recent studies on post-injury arterial vessels have suggested a role of osteopontin (OPN) in the process of vascular remodelling. This study was designed to assess the in vivo performance of OPN following vein ...
Drummond John C - - 2011
A 50-year-old man underwent shoulder surgery in the beach chair position. His mean arterial blood pressure at arm level was approximately 65 mm Hg. Postoperatively, there was delayed awakening and a right hemiparesis. Radiologic evaluation revealed a congenital asymmetry of the circle of Willis that resulted in limited collateral flow ...
Kummer Wolfgang - - 2011
The pulmonary vasculature is innervated by specific subsets of sympathetic, parasympathetic, and sensory nerve fibers. In contrast to most other organs, innervation density is highest at large-caliber vessels and decreases toward the periphery, and reactivity to vasoactive compounds also changes along the course. In some species, such as the experimentally ...
Ying Lei - - 2011
The present study was to determine the role of the type I isoform of cGMP-dependent protein kinase (PKG I) and its downstream effector myosin phosphatase target subunit 1 (MYPT1) in the responses of different sized coronary arteries to nitrovasodilators. Relaxations of isolated porcine coronary arteries were determined by isometric tension ...
Boniface S - - 2011
Understanding of the function of endothelin-1 in the pathophysiology of endothelial disease, in particular pulmonary arterial hypertension (PAH), has paved the way for the development of endothelin-receptor antagonists (ERAs) and explains the leading role they now play in the treatment armamentarium for this disease. Three active ERA drugs (bosentan, sitaxentan, ...
Altin Firat H - - 2011
A novel temporary aortopulmonary shunt, constructed between the aorta and main pulmonary artery with flexible cannulas, was used to facilitate right ventricular outflow tract reconstruction in one neonate and creation of a central aortopulmonary shunt in a second neonate. Although cardiopulmonary bypass is readily available in Turkey, the strategy described ...
Prom Rathasen - - 2011
To provide a comprehensive review of the pharmacology, pharmacokinetics, pharmacodynamics, clinical trial data, adverse effects, and drug interactions of apixaban. An English-language literature search was performed with MEDLINE/PubMed from January 2007 to August 2011 using the search terms apixaban, factor Xa inhibitors, FXa inhibitors, BMS-562247-01, venous thromboembolism, deep vein thrombosis, ...
Salhiyyah Kareem - - 2011
The mitral valve is a living structure comprised of specific structural components which contain a heterogeneous population of cells. The cells include an amalgam of interstitial cells within the valve and a continuous covering of endothelial cells, each of which play a role in responding to the mechanical forces that ...
Kashyap Vikram S - - 2011
The role of and indications for interventions for renal artery stenosis have long been a hot topic of debate. Despite numerous reports and studies over the years, there remain many unanswered questions. Among them are: Who should be intervened upon? What should be the objectives of intervention? What is the ...
Pagel J-I - - 2011
To evaluate the role of neuronal nitric oxides synthase (nNOS) in collateral artery growth (arteriogenesis), we analyzed the expression pattern of nNOS at distinct time points on RNA and protein levels in a rabbit and a murine model of peripheral arteriogenesis. In the rabbit model, Northern blot analyses revealed a ...
Rull A - - 2011
Atherosclerosis in symptomatic peripheral arterial disease affects wide portions of numerous arteries in lower extremities. The resulting active inflammation in a considerable amount of arterial tissue facilitates systemic detection via measurement of inflammation-related variables. We reasoned that the combined assessment of defense against oxidative stress, in the form of paraoxonase-1 ...
Hunkapiller Nathan M - - 2011
Placental trophoblasts (TBs) invade and remodel uterine vessels with an arterial bias. This process, which involves vascular mimicry, re-routes maternal blood to the placenta, but fails in pre-eclampsia. We investigated Notch family members in both contexts, as they play important roles in arterial differentiation/function. Immunoanalyses of tissue sections showed step-wise ...
Suen Renée S - - 2011
Because both endothelin-1 (ET-1) and angiotensin II (AngII) are independent mediators of arterial remodeling, we sought to determine the role of ET receptor inhibition in AngII-accelerated atherosclerosis and aortic aneurysm formation. We administered saline or AngII and/or bosentan, an endothelin receptor antagonist (ERA) for 7, 14, or 28 days to ...
Saba Luca - - 2011
For about 50 years, angiography represented the only imaging method for studying carotid arteries in order to detect the presence of pathological stenosis due to atherosclerotic plaque. Recently, thanks to the use of non-invasive methods, physicians are able to study and quantify the presence of carotid atherosclerosis in vivo. These ...
Homer Robert J - - 2011
Abstract Context.-Idiopathic pulmonary fibrosis is a uniformly lethal disease with limited biomarkers and no proven therapeutic intervention short of lung transplantation. Pulmonary fibrosis at one time was thought to be a result of inflammation in the lung. Although some forms of pulmonary fibrosis may result from inflammation, idiopathic pulmonary fibrosis ...
Berry Diana - - 2011
The role of acetylcholine in determining the tone of blood vessels.
Broegger Torbjoern - - 2011
Aims We have previously characterized a cGMP-dependent Ca(2+)-activated Cl(-) current in vascular smooth muscle cells (SMCs) and have shown its dependence on bestrophin-3 expression. We hypothesized the importance of this current for synchronization of SMCs in the vascular wall. In the present study we aimed to test this hypothesis by ...
Kondo Katsuhiro - - 2011
To describe a case of successful retrieval of OptEase filter, using the balloon-trapped technique, after failure of its retrieval by the standard techniques. An 82-year-old man had an inferior vena cava filter placed for deep venous thrombosis prophylactically. Seven days after successful catheter-directed thrombolysis, the filter was retrieved after changing ...
Kim Yong-Hyun - - 2011
Congenital pulmonary vein stenosis (PVS) is a very rare cardiac malformation and commonly associated with cardiac or extracardiac abnormalities. It is usually found during the newborn period and survival to maturity is very rare due to either of progressive pulmonary hypertension or associated cardiac anomalies. In this case report, an ...
Herren Tobias - - 2010
Aberrant origin of a pulmonary artery from the ascending aorta is an uncommon congenital vascular malformation with poor survival without surgery. In this case report, we describe the unusual late diagnosis of this congenital malformation in an otherwise asymptomatic young man presenting with mild hemoptysis. We review the natural and ...
Kozak Marcelo Felipe - - 2011
Unilateral pulmonary vein atresia is a rare congenital heart disease. Its symptoms begin to manifest in childhood and may be similar to those of other left-side heart obstructions. The diagnosis of this disorder is difficult and usually requires several imaging methods. This report presents the case of a 7-year-old girl ...
Jing-Jing Ye - - 2010
Although real time three-dimensional transthoracic echocardiography (RD-3DTTE) has been used in children with complex congenital heart diseases, the benefit of RD-3DTTE as a vision of the pulmonary veins still requires further evaluation. We present here, a 3-year-old girl with a stenosis of the left upper pulmonary vein (LUPV). Excellent images ...
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