Search Results
Results 251 - 300 of 1613
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Baslaim G - - 2011
BACKGROUND: Coronary artery targets are essential for referral acceptance to achieve complete coronary revascularization. PATIENTS AND METHODS: A prospective double-blind study was carried out to determine whether the addition of nitroglycerin to cold blood hyperkalemic cardioplegia would optimize the size and number of coronary artery targets during conventional coronary bypass ...
Wong George K C - - 2011
The ultimate treatment goal for intracranial aneurysms is to reconstruct the vessel wall and correct the hemodynamic disturbance. A flow diverter is a stent placed in the parent artery to reduce blood flow in the aneurysm sac to the point of stagnation, gradual thrombosis, and neointimal remodeling to maintain outflow ...
Fengping Yan - - 2011
Spontaneous dissection of the coronary arteries is an extremely rare event that occurs usually in middle-aged women and is mostly recognized at postmortem examination in victims of sudden death. It is a rare coronary pathologic finding whose precise incidence, etiology, pathogenesis, treatment, and evolution have not been clearly established. We ...
Barbiero G - - 2011
PURPOSE: This paper evaluates the indications, techniques, results, and complications of intra-arterial thrombolysis with or without a multihole microcatheter in three cases of acute hand ischaemia in comparison with the literature. MATERIALS AND METHODS: Three men (mean age 39 years) with symptoms and signs of acute hand ischaemia (i.e. pain, ...
Elias Shlomo - - 2011
We describe the case of a woman presenting to the intensive care unit (ICU) with acute respiratory failure requiring mechanical ventilation. The patient had severe pulmonary hypertension secondary to interstitial lung disease with a past history, which included sarcoidosis and tuberculosis. She was dependent on inhaled nitric oxide (iNO) to ...
Jilaihawi Hasan - - 2011
We sought to determine the significance of incomplete stent frame expansion after transcatheter aortic valve implantation with the Medtronic-CoreValve device. Incomplete coronary stent expansion is a well-described phenomenon. Transcatheter valves are mounted on stents; however, the incidence of incomplete stent expansion after transcatheter aortic valve implantation, its sequelae and predictors ...
Riles Thomas S - - 2011
In this case report, we present a 45-year-old man who experienced abdominal pain while bench-pressing heavy weights. A computed tomography angiogram showed a dissection of the celiac artery extending into the hepatic and splenic arteries, with thrombus in the false lumen into the common hepatic artery. With resolution of his ...
Mohiuddin Mohammad W - - 2011
Our laboratory has developed an adjustable systemic-pulmonary artery (AS) shunt to provide improved control of pulmonary blood flow (PBF) after neonatal palliation of hypoplastic left heart syndrome (HLHS). Six piglets of 6-10 kg underwent left thoracotomy and placement of a 3.5 mm polytetrafluoroethylene (PTFE) shunt from the left subclavian artery ...
Koshiyama Hiroshi - - 2011
Bleeding from the proximal suture line during aortic root replacement using a composite valve graft is a crucial and catastrophic problem. We present a simple flanged Bentall technique using a Valsalva tube graft to eliminate bleeding from the proximal suture line. The method is to wrap the proximal anastomosis completely ...
van Houwelingen Marc J - - 2011
In earlier work, we suggested that the start of the isovolumic contraction period could be detected in arterial pressure waveforms as the start of a temporary pre-systolic pressure perturbation (AIC(start), start of the Arterially detected Isovolumic Contraction), and proposed the retrograde coronary blood volume flow in combination with a backwards ...
Perot G - - 2011
Persistent trigeminal artery is a rare persistent carotid-basilar anastomosis that usually connect the infracavernous segment of the ICA with the basilar artery. Rarely, PTA may feed cerebellar artery. We describe an exceptional case of PTA terminating in postero-inferior cerebellar artery (PICA) hemispheric branch. Angiographic and CTA features are presented and ...
Ramayya Anto S - - 2011
Abstract  Abnormalities in the aorta of patients with tetralogy of Fallot (TOF) can lead to aortic dilatation and aortic regurgitation. We report a six-year-old male with TOF with dysplastic aortic valve, severe aortic regurgitation, and aortic aneurysm involving the aortic root, ascending aorta, and the proximal aortic arch, who underwent ...
Kim J-T - - 2011
Background and purpose:  The presence of collateral middle cerebral artery (MCA) flow via the primary collateral pathway is thought to protect against the progression of cerebral ischaemia. However, there have been few reports on early clinical outcomes according to the presence of collateral MCA flow in acute ischaemic stroke (AIS) ...
Astarci Parla - - 2011
Prosthesis embolization represents a severe complication following transcatheter aortic valve implantation (TAVI). We describe a case of ventricular embolization of the Edwards Sapien valve following transapical TAVI. The prosthesis was extracted successfully using the same transapical access. This approach obviated the need for conversion to a median sternotomy to explant ...
Hardy Brian T - - 2011
PURPOSE: To describe the intraosseous arterial anatomy of the proximal ulna. METHODS: We used 9 fresh-frozen, above-elbow amputations to map the intraosseous arterial supply using the Spalteholtz technique. We treated 3 additional above-elbow amputations similarly, and then dissected them to map the extraosseous arterial supply. We recorded the extraosseous arterial ...
Ferroli Paolo - - 2011
Object The purpose of this paper is to evaluate whether venous indocyanine green (ICG) videoangiography has any potential for predicting the presence of a safe collateral circulation for veins that are at risk for intentional or unintentional damage during surgery. Methods The authors performed venous ICG videoangiography during 153 consecutive ...
Moreno Pedro R - - 2011
OBJECTIVES: Patients with congenital bicuspid aortic valves have aortic valve stenosis at a relatively young age compared with patients with tricuspid aortic valves. We hypothesize that aortic valve stenosis evolves from a more aggressive inflammatory process, with increased macrophage/T-cell and neovessel content in congenital bicuspid aortic valveswhen compared with that ...
van Rutte P W J - - 2011
Cystic adventitial disease (CAD) is a rare cause of unilateral intermittent claudication of unknown aetiology, which is characterized by the formation of multiple mucin-filled cysts in the adventitial layer of the arterial wall resulting in obstruction to blood flow. The disease predominantly presents in young otherwise healthy males and most ...
Mariani L L - - 2011
INTRODUCTION: Hypoplastic basilar (BA) and vertebral arteries (VA) can cause posterior circulation infarctions. Distinction between hypoplastic and atherosclerotic BA can be difficult with usual angiographic methods (MR, CT or conventional angiographies), only showing arterial luminogram. High-resolution MRI (HRMRI) of the arterial wall is promising in identifying intracranial artery plaques. OBSERVATION: ...
Wang Qingjun - - 2011
The purpose of this study was to evaluate the differences in carotid arterial morphology and plaque composition between patients with acute coronary syndrome (ACS) and patients with stable coronary artery disease (SCAD). Twenty-eight patients (12 ACS patients and 16 SCAD patients) underwent carotid high-resolution MRI examination using a 3.0-Tesla (3.0T) ...
Kantarci Fatih - - 2011
We describe the "double-vessel" sign and its relevance for the diagnosis of carotid and vertebral arterial anatomical variations in a series of four patients with stroke. In these four patients, two arteries could be seen at the expected location of the common carotid artery (CCA), leading to the diagnosis of ...
Harikrishnan Sivadasanpillai - - 2011
Background: Congenital coronary arteriovenous fistulas (CAVF), although rare, can present as significant hemodynamic lesions necessitating intervention. Methods and results: Six patients (two males) with congenital coronary arteriovenous fistulas (CAVF) underwent percutaneous transcatheter occlusion. The ages ranged from 4 years to 49 years (mean 20.1 years). The fistulas had their origins ...
Flameng Willem - - 2011
OBJECTIVE: Prolonged aortic crossclamping can increase mortality and morbidity after aortic valve replacement in elderly and high-risk patients. Sutureless implantation of the prosthesis has the potential to shorten aortic crossclamp time. METHODS: The Perceval S valve (Sorin Biomedica Cardio Srl, Sallugia, Italy), a sutureless implantable aortic bioprosthesis, was used in ...
Coksuer Hakan - - 2011
Aim:  To investigate the risk of cardiovascular disease by measuring carotid intima-media thickness (CIMT) and to evaluate the diameters and blood flow volume of vertebral arteries using Doppler ultrasound and the possible contribution of hyperandrogenemia that exists in these patients. Material and Methods:  We prospectively studied 64 Caucasian women aged ...
Walther Thomas - - 2011
Objective: Since 1990, over 1.2 million bioprosthetic valves were implanted for aortic stenosis. Given the risk of structural valve deterioration, the need to redo AVR will likely rise. Recently, SAPIEN valve-in-valve (ViV) has been advocated. We evaluated the in vitro hydrodynamic performance of the Edwards SAPIEN+cloth trans-catheter heart valve (THV) ...
Rengier Fabian - - 2011
PURPOSE: To evaluate whether quantitative characterization of aortic arch geometry including its branches is feasible based on in-vivo computed tomography (CT) angiography and magnetic resonance (MR) angiography data in healthy and diseased aortic arches. MATERIALS AND METHODS: Ten healthy volunteers, 10 patients with abdominal aortic disease, and 10 patients with ...
Behrendt Florian F - - 2011
: The aim of this study was to intraindividually compare the effect of different chaser flow rates, volumes, and fluids on contrast enhancement in multidetector-row computed tomography. : Multidetector-row computed tomography scanning of 5 dogs was performed under standardized conditions using an adapted injection protocol to ensure an identical iodine ...
Passariello F - - 2011
A 31 year-old female patient, an opera singer, came for a consultation, mainly for aesthetic problems of the lower limbs. An asymptomatic bilateral P-point pelvic shunt was demonstrated by the EchoDoppler, while no nutcracker syndrome was detected. The examination demonstrated a medial circumflex femoral vein (MCFV), going into the common ...
Shirodkar S P - - 2011
Renal artery aneurysm is an infrequently seen disease. The most feared symptom is rupture, which is often rapidly fatal. Indications for intervention include size, intractable symptoms and pregnancy. Many cases are managed by endovascular techniques; however, very complex cases often are referred to the urologist. We report our experience with ...
Kainuma Satoshi - - 2011
Conventional aortic valve replacement (AVR) is the gold standard surgical treatment for symptomatic aortic valve stenosis. However, some patients are not referred for open surgical procedure because of their high risk due to complicated co-morbidities. We describe the first case in Japan of successful transcatheter aortic valve implantation (TAVI). An ...
Melas Nikolaos - - 2011
Abstract Purpose: To report a case in which a persistent high-flow type II endoleak after endovascular aneurysm repair (EVAR) of a leaking abdominal aortic aneurysm (AAA) complicated by an aortocaval fistula was repaired with a stent-graft in the inferior vena cava (IVC). Case Report: A 76-year-old man underwent emergent EVAR ...
Nolte A - - 2011
Coronary artery bypass grafting (CABG) is a standard procedure for treatment of coronary heart disease. Eighty percent of all CABGs are performed with venous grafts which then get exposed to an arterial pressure after surgery. This widely used procedure, however, is complicated by the development of alterations in the vein ...
Jung Yu Min - - 2011
Intestinal ischemia is divided into three categories, namely, acute mesenteric ischemia (AMI), chronic mesenteric ischemia (CMI), and colonic ischemia. AMI can result from arterial or venous thrombi, emboli, and vasoconstriction secondary to low-flow states. It is an urgent condition which can result in high mortality rate. The predominant causative factor ...
Housari G - - 2011
We report a 66-year-old woman who underwent emergency orthotopic liver transplantation due to acute liver failure. The donor's liver graft displayed extensive arteriosclerosis, involving the celiac trunk and hepatic artery. Arterial revascularization of the graft could not be achieved, requiring an arterioportal shunt between the gastroduodenal artery and the portal ...
Singhi Anil Kumar - - 2011
BACKGROUND: Anomalous systemic arterial supply to normal segments of the lung is an unusual anomaly. It represents part of a spectrum of bronchovascular abnormalities which have various anatomical and clinical manifestations. METHODS: We retrospectively analysed cases from January 2007 to April 2010 from two institutions diagnosed with an anomalous systemic ...
Said S A M - - 2011
Coronary artery fistulas (CAFs) are infrequent anomalies, coincidentally detected during coronary angiography (CAG). To elucidate the currently used diagnostic imaging modalities and applied therapeutic approaches. Five Dutch patients were found to have CAFs. A total of 170 reviewed subjects were subdivided into two comparable groups of 85 each, treated with ...
Yoshida Masahiro - - 2011
In general, all conduits available for right ventricular outflow tract (RVOT) reconstruction eventually become stenotic or insufficient. Owing to the lack of an ideal conduit and with the hope of reducing the incidence of reoperations, we have developed and utilized a bicuspid valved polytetrafluoroethylene (PTFE) conduit for the reconstruction of ...
Lautz Timothy B - - 2011
A 3-year-old girl with idiopathic extrahepatic portal vein obstruction undergoing mesenterico-left portal vein bypass (MLPVB), or Rex shunt, for recurrent variceal bleeding was intraoperatively discovered to have duplicated round ligaments and Rex recessi. The left and right portal veins connected to their respective round ligaments but had minimal communication within ...
Filipovic Nenad - - 2011
In this study, the steady and pulsatile flow field with mass transport analysis in an anatomically correct model of coronary artery is simulated numerically using a specific patient data from a 64-multislice computed tomography scanner. It is assumed that the blood flow is laminar and that the Navier-Stokes equations of ...
Wendt Daniel - - 2011
Abstract Balloon aortic valvuloplasty (BAV) plays a crucial role in transcatheter aortic valve implantation (TAVI). However, data on morphology during BAV are lacking. During surgical aortic valve replacement, open BAV was performed as a non-therapeutic in-vivo model prior to aortic valve excision. Twenty-six patients with severe aortic stenosis were included ...
Zebele Carlo - - 2011
We describe a case of coronary-subclavian steal in a 60-year-old man who presented with progressive ischemia 16 years after coronary artery bypass with in-situ bilateral internal thoracic artery grafts. Angiography revealed completely patent arterial grafts, but subtotal stenosis of the left subclavian artery. On reoperation, a vein graft was used ...
Handa Nobuhiro - - 2011
The present case report details our experience with the hybrid approach for multiple aneurysms in the aortic arch, thoracoabdominal aorta, and around the aortic bifurcation. Total arch replacement for the arch aneurysm under hypothermic cardiopulmonary bypass with antegrade cerebral perfusion was the first stage of aneurysm repair. Five months later, ...
Ciccone M M - - 2011
The purpose of this study was to investigate the feasibility of contrast-enhanced ultrasound (CEUS) in the evaluation of renal artery stenosis as compared with traditional techniques: echo color Doppler (ECD) investigation and selective angiography .CEUS is a technique based on the injection of an intravascular biocompatible tracer, namely an intravenous ...
Ho Paul C - - 2011
Abstract A previously published two-part study described an engineering design of a percutaneous aortic valve (PAV) replacement system, which utilizes a novel temporary aortic valve (TAV) support to improve procedural outcomes and safety. Conceptually, this investigational approach can promote accurate PAV placement, procedural hemodynamic stability, smaller catheter delivery system, reduction ...
McGettigan Brian - - 2011
Rupture of the extracranial carotid arteries or their major branches is known as carotid blowout syndrome (CBS). CBS is a well-recognized complication of cancer of the head and neck and subsequent radiation therapy. A few treatment modalities are available, including open ligation and different endovascular techniques, but questions regarding both ...
Huri Emre - - 2011
Anatomical localization of theureter comes along psoas major muscle and crosses over common iliac artery bifurcation. Common iliac artery aneurysm and impacted atherosclerosis are a rare condition that should be differed from the impacted ureter stone to avoid from undesirable complication. In this case, we present a very unusual anatomical ...
Kim Myoung-Joon - - 2011
Coronary artery fistula to pulmonary artery is common. However, to the best of our knowledge, a case of coronary artery fistula to pulmonary artery associated with aortopulmonary fistula remains unreported. We herein report a 64-year-old female with a left anterior descending coronary artery and ascending aorta to pulmonary artery fistulas, ...
Najib Mohammad Q - - 2011
Although rare, periprosthetic valvular regurgitation can cause hemolytic anemia. We present the case of a 63-year-old man who had an unusual presentation of hemolytic anemia due to periprosthetic mitral valve regurgitation (PMVR) in the presence of cold agglutinins. Due to high surgical risk, PMVR was percutaneously closed with three Amplatzer ...
Tessitore Nicola - - 2011
Guidelines recommend systematically screening for stenosis using various methods, but no studies so far have compared all of the options. A prospective blinded study was performed to compare the performance of several bedside tests performed during dialysis in diagnosing angiographically proven >50% fistula stenosis. In an unselected population of 119 ...
ZeleĊˆák Kamil - - 2011
Endovascular treatment for a wide-neck anterior communicating artery (AcomA) aneurysm remains technically challenging. Stent-assisted embolization has been proposed as an alternative of treatment of complex aneurysms. The X-configuration double-stent-assisted technique was used to achieve successful coiling of wide-neck AcomA aneurysm. Implanted stent can alter intra-arterial flow. Follow-up angiograms 4 months ...
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