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Kitagawa Atsushi - - 2013
Accurate measurement of abdominal aortic aneurysms is necessary to predict rupture risk and, more recently, to follow aneurysm sac behavior following endovascular repair. Up until this point, aneurysm diameter has been the most common measurement utilized for these purposes. Although aneurysm diameter is predictive of rupture, accurate measurement is hindered ...
Araújo Rogério - - 2013
Stents for angioplasty have been extensively used to treat coronary diseases. The aim of this study is to analyze the expansion of the stent and the contact with the artery using tube hydroforming simulation. In the simulation, the contact stress and the final shape of the artery after stent expansion ...
Pitkänen Leena - - 2013
Retinal arterial macroaneurysms are acquired saccular or fusiform dilatations of the large arterioles of the retina, usually within the first three orders of bifurcation. They are associated with systemic vascular conditions such as hypertension and arteriosclerotic disease occurring most commonly in elderly women. The primary reported symptom is a sudden ...
Obadina E T ET Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, WI, - - 2013
Acute lung injury usually causes hypoxaemic respiratory failure and acute respiratory distress syndrome (ARDS). Although diffuse alveolar damage is the hallmark of ARDS, other histopathological patterns of injury, such as acute and fibrinoid organising pneumonia, can be associated with acute respiratory failure. Acute eosinophilic pneumonia can also cause acute hypoxaemic ...
Das Karuna Moy KM Department of Radiology, King Fahad Medical City, Riyadh, Kingdom of Saudi Arabia. - - 2013
Giant cavernous haemangioma of azygous arch is extremely rare. We present the multidetector computed tomography (MDCT) features of a mediastinal cavernous haemangioma in an asymptomatic child detected in a follow-up examination. MDCT features with multiple venous lakes filling from the periphery, focal specks of calcification, low-density soft tissue mass along ...
Wu Sheng-Wen - - 2013
Intracranial dissecting aneurysms mainly occur in the territory of the vertebrobasilar system. Dissecting aneurysms confined to the anterior cerebral artery are rare, and the presentations are usually of either subarachnoid hemorrhage or cerebral infarction. Here, we report a unique case of a dissecting aneurysm of the anterior cerebral artery presenting ...
Pierot Laurent - - 2013
BACKGROUND:: The endovascular treatment of middle cerebral artery (MCA) aneurysms with unfavorable anatomy (wide neck, unfavorable morphology) is frequently challenging. Flow disruption using the WEB is a potentially interesting endovascular treatment for this type of aneurysm. OBJECTIVE:: To report, in a multicenter series, the preliminary treatment experience of MCA aneurysms ...
Avgerinos Dimitrios V - - 2013
We describe the surgical management of three distinct coronary artery aneurysms in conjunction with coronary artery bypass grafting.
Furukawa Kouji K Department of Cardiovascular Surgery, Miyazaki Medical Association Hospital, Miyazaki, Japan. - - 2013
An 83-year old man who had used bilateral axillary crutches for 67 years was referred to our hospital for acute left upper limb ischaemia. He underwent successful recanalization through emergent catheter thromboembolectomy. However, a crutch-induced left brachial artery aneurysm was subsequently detected by computed tomography. Therefore, we performed aneurysm exclusion ...
Akkus Nuri Ilker - - 2013
Intravascular fracture of catheters, especially guiding catheters, is uncommon. We present an unusual case in which a guide twisted and broke in a tortuous iliac artery during manipulation of the guiding catheter with a 0.014inch wire firmly trapped inside and was retrieved by a larger sheath.
Parv Andreea - - 2013
Assessment of the left internal mammary artery (LIMA) graft patency currently requires invasive investigation through coronary angiography. In the last years the successful application of noninvasive Doppler spectrum analysis has been reported for patency assessment of the LIMA graft after myocardial revascularization. Echocardiography is considered to be a sensitive noninvasive ...
Gross Bradley A - - 2013
Ophthalmic segment aneurysms refer to superior hypophyseal artery aneurysms, true ophthalmic artery aneurysms, and their dorsal variant. Indications for treatment of these aneurysms include concerning morphological features, large size, visual loss, or rupture. Although narrow-necked aneurysms are ideal endovascular targets, more complex and larger lesions necessitating adjunctive stent or flow-diversion ...
Rosen Marcy L - - 2013
: Pyomyoma (suppurative leiomyoma of the uterus) is a rare condition resulting from infarction and infection of a leiomyoma. It can lead to sepsis and death unless treated with antibiotics and aggressive surgical intervention. : A 47-year-old multigravid woman with symptomatic uterine leiomyomas presented with fever, pelvic pain, and leukocytosis ...
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 ...
Bianchi Giacomo - - 2013
Although specifically designed aortic clamps are mainstay of minimally invasive cardiac surgery, so far, no comparative reports about their mechanical properties and interaction with the aortic wall have been reported. In this study, the generated force in the clamps' jaws and the biological response of the aorta after clamping are ...
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 ...
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 ...
Siegenthaler Nils N Intensive Care Unit, Department of Anaesthesiology, Pharmacology and Intensive Care, University Hospitals of Geneva, 4 Rue Gabrielle-Perret-Gentil, 1211 Geneva 14, Switzerland ; Faculty of Medicine, University of Geneva, 4 Rue Gabrielle-Perret-Gentil, 1211 Geneva 14, - - 2013
Background. The aim of this survey was to describe, in a situation of growing availability of monitoring devices and parameters, the practices in haemodynamic monitoring at the bedside. Methods. We conducted a Web-based survey in Swiss adult ICUs (2009-2010). The questionnaire explored the kind of monitoring used and how the ...
Wang Xin X Department of Hand Surgery, Ningbo Sixth Hosspital, - - 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. Ten ...
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. ...
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.
Dellimore Kiran K Biomedical Engineering Research Group, Department of Mechanical and Mechatronic Engineering, Stellenbosch University, South - - 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 ...
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 ...
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