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Fujimoto Motoaki - - 2013
Symptomatic intracranial atherosclerotic stenosis is associated with a high rate of recurrent stroke. Endovascular angioplasty and stenting using the Wingspan(TM) Stent (Stryker) has been used for treatment of this disorder. However, a recent randomized trial (SAMMPRIS Clinical Trial) reported that it was inferior to aggressive medical management. To explore the ...
Angelini Daniel J - - 2013
Both chronic hypoxia and allergic inflammation induce vascular remodeling in the lung, but only chronic hypoxia appears to cause PH. We investigate the nature of the vascular remodeling and the expression and role of hypoxia-induced mitogenic factor (HIMF/FIZZ1/RELMα) in explaining this differential response. We induced pulmonary vascular remodeling through either ...
Wang Weixiong - - 2013
The endovascular treatment of intracranial aneurysms remains a challenge, especially when the aneurysm is large in size and has irregular, non-spherical geometry. In this paper, we use computational fluid dynamics to simulate blood flow in a vertebro-basilar junction giant aneurysm for the following three cases: (1) an empty aneurysm, (2) ...
Wang Jian-Gang - - 2013
Failure of bioprosthetics is usually caused by calcification of the leaflets as a consequence of high tensile stresses. The stentless valve resembles native mitral valve anatomy, has a flexible leaflet attachment and a suspension at the papillary muscles, and preserves annuloventricular continuity. In this study, the effects of the stentless ...
Gylling Helena - - 2013
The hypocholesterolemic effect of plant stanol ester consumption has been studied extensively, but its effect on cardiovascular health has been less frequently investigated. We studied the effects of plant stanol esters (staest) on arterial stiffness and endothelial function in adults without lipid medication. Ninety-two asymptomatic subjects, 35 men and 57 ...
Belhaj Asmae - - 2013
Heme oxygenase (HO)-1 is a stress response enzyme which presents with cardiovascular protective and anti-inflammatory properties. Six-month chronic overcirculation-induced pulmonary arterial hypertension (PAH) in piglets has been previously reported as a model of right ventricular (RV) failure related to the RV activation of apoptotic and inflammatory processes. We hypothesized that ...
Katayama Akira - - 2013
We reported simple partial root remodeling using a graft trimmed twin "U" shape for extensive dissection into the right/non-coronary sinuses with acute type A aortic dissection with cardiac tamponade, acute myocardial infarction on the right coronary artery and aortic regurgitation. After total arch replacement with frozen elephant trunk technique for ...
Tota Francesco F Division of Cardiology, San Paolo Hospital Bari, - - 2013
Stress-induced cardiomyopathy or Takotsubo cardiomyopathy (TCM) is a unique syndrome, characterized by transient left ventricular (LV) apical ballooning without significant coronary arteries stenosis, affecting mainly menopausal women. We present the case of a 70 year old woman with subacute stent thrombosis (ST) at the level of the right coronary artery ...
Gijsen Frank - - 2012
The role of low and oscillating shear stress as a key factor for localizing early atherosclerotic plaques is generally accepted. Once more advanced plaques protrude into the lumen, the shear stress they are exposed to changes. The influence of shear stress on plaque composition in advanced atherosclerosis is not fully ...
Mongeon François-Pierre - - 2012
BACKGROUND: While aortic root pathology has been described in patients with tetralogy of Fallot (TOF), the scope of the problem remains poorly defined. We sought to determine the prevalence and predictors of aortic root dilatation in adults with repaired TOF. METHODS AND RESULTS: A multicenter cross-sectional study was conducted with ...
Bobylev Dmitry - - 2012
Mild to moderate neoaortic root dilatation late after arterial switch operation (ASO) is a well-documented morbidity, but rarely needs surgical replacement. Here, we report on a 22-year-old man, who developed marked dilatation of neoaortic root and needed an aortic root replacement with mechanical conduit. His aortic valve was bicuspid. Only ...
Poullis Michael - - 2012
Aortic root and valve clots are rare but well described in patients on maximal left ventricular assist device (LVAD) support. We performed a theoretical analysis using computational fluid dynamic analyses in two dimensions to try and ascertain if inflow cannula design/orientation/placement affect aortic root flow dynamics. Two-dimensional computational fluid dynamics ...
Burstow Darryl - - 2012
One of the most troublesome complications of percutaneous coronary intervention (PCI) or angiography is retrograde dissection of the artery into the aortic root. We report a case involving the right coronary artery (RCA) which was treated with prompt deployment of stents. Recurrent chest pain and ST segment elevation in V(2-4) ...
Gosemann Jan-H - - 2012
AIM: Persistent pulmonary hypertension remains a major cause of mortality and morbidity in congenital diaphragmatic hernia (CDH). NADPH oxidases (Nox) are the main source of superoxide production in vasculature. Nox4 is highly expressed in the smooth muscle and endothelial cells of the vascular wall and increased activity has been reported ...
Mummert Joseph J Tissue Mechanics Lab, Biomedical Engineering Program and Mechanical Engineering Department, University of Connecticut, 207 Bronwell Building, Storrs, CT 06269-3139, - - 2013
Success of the deployment and function in transcatheter aortic valve replacement is heavily reliant on the tissue-stent interaction. The present study quantified important tissue-stent contact variables of self-expanding transcatheter aortic valve stents when deployed into ovine and porcine aortic roots, such as the stent radial expansion force, stent pullout force, ...
Oishi Peter E PE Department of Pediatrics, University of California, San Francisco, San Francisco, CA, USA. - - 2013
Pulmonary vascular function is impaired with increased pulmonary blood flow (PBF). We hypothesized that a peroxisome proliferator-activated receptor-γ (PPAR-γ) agonist would mitigate this effect. An aorta-to-pulmonary-artery shunt was placed in 11 fetal lambs. Lambs received the PPAR-γ agonist rosiglitazone (RG, 3 mg/kg/d, n = 6) or vehicle (n = 5) ...
Tokuishi Keita - - 2012
An 84-year-old woman underwent aortic and mitral valve replacement. After weaning from cardiopulmonary bypass, hemorrhage was observed in the endobronchial tube. The bleeding bronchus was isolated to protect the airway using the blocker cuff of a Univent tube (Fuji Systems Corp, Tokyo, Japan). Computed tomography showed a pulmonary pseudoaneurysm in ...
Kamiya Kazunori - - 2012
A 68-year-old woman was found to have an abnormal shadow on chest X-ray. Computed tomography showed some small ground-glass opacities in the bilateral lung field and also a 22-mm tumor in the left lower lobe, which showed high accumulation on (18)F fluorodeoxyglucose positron emission tomography. Each of them was difficult ...
Yang Y - - 2012
1. The aim of the study was to determine if H(2)S is involved in the development of hypoxia-induced pulmonary hypertension in broilers, a condition frequently observed in a variety of cardiac and pulmonary diseases. 2. Two-week-old broilers were reared under normoxic conditions or exposed to normobaric hypoxia (6 h/day) with tissue ...
Irie Toshiyuki - - 2012
PURPOSE: To reveal the mechanism of dense accumulation of lipiodol emulsion (LE) in hepatocellular carcinoma (HCC) during selective balloon-occluded transarterial chemoembolization (B-TACE). METHODS: Balloon-occluded arterial stump pressure (BOASP) at the embolization portion was measured during selective B-TACE for 43 nodules in 42 patients. Fluoroscopy and digital subtraction angiography were prospectively ...
Ro Sun Kyun - - 2012
OBJECTIVES: Despite many studies about aortic valve function and aortic root geometry after conservative aortic root repair of acute type A aortic dissection, the results are not always consistent or conclusive. This study aims to evaluate aortic root diameter and aortic valve function after surgery for acute type A aortic ...
Ootaki Yoshio - - 2012
Progressive aortic root dilatation is a common feature after surgical repair of tetralogy of Fallot. This report describes a successful valve-sparing replacement of the aortic root in a patient with significant dilated aortic root and aortic regurgitation after repair of tetralogy of Fallot.
Azadani Ali N - - 2012
Significant dilation of the pulmonary autograft after the Ross operation is problematic and requires reoperation. Autograft remodeling occurs in response to the immediate rise in pressure and consequent wall stress. The stress-strain response of the pulmonary root plays an important role in understanding the structural and functional changes of the ...
Lao Weng-Fai - - 2012
Thoracic endovascular aneurysm repair using stent graft has been reported as a feasible and effective treatment for aortic aneurysm. However, its application for treating infected aortic aneurysms is still controversial and less reported. We report a 74-year-old male diabetic patient diagnosed with Salmonella-infected aortic aneurysm, who was successfully treated with ...
Bergqvist David - - 2012
Antimicrobial treatment to attenuate expansion of abdominal aortic aneurysm has been suggested, especially with the focus on Chlamydophila. In this systematic literature review only four randomized trials were identified. In two small studies there is an indication of an effect of roxithromycin. In conclusion, however, more studies are needed, and ...
Cooper Timothy K - - 2012
Repeated bolus intravenous (IV) administration of large doses of beta-lactams and aminoglycosides has previously been associated with the development of eosinophilic and occlusive arterial lesions limited to the lungs in calves. Reviewing 13 years worth of records from left ventricular assist device implantation studies, morphologically identical segmental arterial lesions were ...
Pousios Dimitrios - - 2012
A case of prosthetic aortic valve endocarditis due to Cardiobacterium hominis in a 67-year-old woman is described. The diagnosis was confirmed by a positive blood culture and echocardiographic detection of aortic valve vegetations. The patient underwent replacement of the valve with a homograft, and received antibiotics postoperatively. She remained well ...
Kelmer G - - 2012
Kelmer, G., Bell, G. C., Martin-Jimenez, T., Saxton, A. M., Catasus, C., Elliot, S. B., Meibohm, B. Evaluation of regional limb perfusion with amikacin using the saphenous, cephalic, and palmar digital veins in standing horses. J. vet. Pharmacol. Therap. doi: 10.1111/j.1365-2885.2012.01414.x. Previous studies have shown that regional limb perfusion (RLP) ...
Concistrè Giovanni - - 2012
Streptococcus constellatus endocarditis is associated with systemic embolism and frequently with a poor prognosis. We describe the first case reported in the literature of infective endocarditis by penicillin-resistant S. constellatus causing both mitral and aortic valve regurgitation, treated successfully with double-valve replacement.
Lin Ching-Wen - - 2012
Encrustation is one of the most common complications that may develop with the use of a nephrostomy catheter. We used the color Doppler twinkling artifact to detect encrustation and obstruction of a nephrostomy catheter in vivo. This was confirmed by in vitro scanning of the catheter after analyzing the radiogram. ...
Kerl Josef Matthias - - 2012
To assess the interobserver variability of 4 radiologists with different levels of experience in the evaluation of 64-slice coronary computed tomographic angiography (cCTA). Two board-certified radiologists with 10 and 8 years of experience in reading cCTA and 2 radiology residents, 1 with 3 years of experience in reading cCTA and ...
Ishii Hirohito - - 2012
We describe a rare case of acute Stanford type A dissection with "intimo-intimal intussusception." A 38-year-old male with sudden back pain and unconsciousness was admitted to the hospital. A computed tomography (CT) scan revealed the presence of an intimal flap in the aortic root and the aortic arch, absence of ...
Baraki Hassina - - 2012
The Bentall procedure is the 'gold standard' for the repair of a combined pathology of ascending aorta and aortic valve. Because there is no need for long-term anticoagulation, biological-valved conduits have become increasingly popular; however, the possible need for reoperation due to valve degeneration is a major disadvantage. The aim ...
Dolezal Antonín - - 2012
In the drawing of coitus by Leonardo da Vinci are pictured the contemporary hypotheses regarding this act. The authors analyze the mamillaruteral connection depicted by the artist and grow up to believe that this is a hypothetical kiveris vena, female vein described by Anatomist Master Nicolai Physicus from the Salerno ...
Vrancken S L - - 2011
BACKGROUND: /st>Cardiac output (CO) monitoring remains complex in newborns as most of the current technologies fail to accurately measure systemic blood flow in the presence of shunts. We validated CO measurements using transpulmonary ultrasound dilution (TPUD) in a neonatal lamb model with a left-to-right shunt. METHODS: /st>Regular arterial and central ...
Yang Xing-Sheng - - 2011
Objectives: The authors investigate whether the combination of anti-CD34 antibody with DES is win-win cooperation. Background: DES may reduce the risk of restenosis compared to bare-metal stents (BMS), but they were found to inhibit the healing process of intima. Methods: Fifteen BMS, 17 DES, and 16 combined anti-CD34 antibody and ...
Chuang Ming-Tsung - - 2011
The purpose of this study was to report our experience of percutaneous retrieval of dislodged port catheters with concurrent use of pigtail and loop snare catheters. During a 5-year period at our institute (June 2005 to July 2010), a total of 23 dislodged port catheters were retrieved. The interval between port ...
Chuang Yu-Ming - - 2011
Background: Leukoaraiosis (LA) affects cognition after stroke and reversal of LA may improve cognitive performance. We aimed to determine the impact of cerebral perfusion and circle of Willis (CoW) flow patterns on the extent of LA after carotid artery revascularization. Methods: LA was scored on fluid-attenuated inversion recovery magnetic resonance ...
Akutagawa Osamu - - 2012
We report a rare case of a 58-year-old male with accidental occlusion of left main trunk (LMT) artery by injured aortic valve during percutaneous coronary intervention (PCI). Although we successfully bailed out this complication by urgent LMT stenting, aortic regurgitation developed immediately after PCI. Echocardiography detected a filamentous structure attached ...
Lee Geoffrey - - 2011
BACKGROUND: The pulmonary veins (PV) and the PV-LA junction are established sources of triggers initiating AF. Additionally, they have been implicated in the maintenance of arrhythmia. OBJECTIVE: To undertake high-density electrophysiological characterization of the right superior PV-left atrial (PV-LA) junction in humans. METHODS: Mapping was performed in 18 patients undergoing ...
Park Jin-Sun - - 2011
Three-dimensional (3D) echocardiography has been reported to be valuable for evaluating the geometry of cardiac chambers. We validated the accuracy of 3D transthoracic echocardiography for quantifying aortic root geometry in comparison with cardiac multi-detector computed tomography (MDCT). Twenty-three patients who underwent cardiac MDCT and showed normal left ventricular ejection fraction ...
Park Mi-Youn - - 2011
A 38-year-old man visited our emergency department presenting with a 6-day persistent fever. The man had undergone an orthodontic procedure 7 days prior to the visit. He had a fever with a temperature of 38.2℃ and a diastolic murmur (grade III) was detected at the left sternal border. Reddish-brown lines ...
Dragulescu Andreea - - 2011
OBJECTIVE: Transesophageal echocardiography is the primary intraoperative imaging modality used to evaluate cardiac surgery. Its predecessor, epicardial echocardiography, enables visualization of certain cardiovascular structures that are beyond the visual scope of transesophageal echocardiography. We review the current use of epicardial echocardiography to analyze its contemporary application and benefit. METHODS: A ...
Kocabay G - - 2011
We present a case of isolated prolapse of the tricuspid anterior leaflet in an asymptomatic 34-year-old man who was referred to our hospital for a routine check up. We performed two-and three-dimensional transoesophageal echocardiography (TEE). We found three-dimensional TEE a useful, non-invasive tool that can provide additional information to two-dimensional ...
Li Lu - - 2011
P2X(1) receptors, the major subtype of P2X receptors in the vascular smooth muscle, are essential for α,β-methylene adenosine 5'-triphosphate (α,β-MeATP)-induced vasoconstriction. However, relative physiological significance of P2X(1) receptor-regulated vasoconstriction in the different types of arteries in the rat is not clear as compared with α(1)-adrenoceptor-regulated vasoconstriction. In the present study, ...
Radeleff B - - 2011
A 37-year-old man with known intravenous drug abuse presented in the surgical ambulatory care unit with acute leg ischemia after accidental intra-arterial injection of dissolved flunitrazepam tablets into the right femoral artery. A combination of anticoagulation, vasodilatation, and local selective and superselective thrombolysis with urokinase was performed to salvage the ...
Eftekhar Behzad - - 2011
This study was undertaken to determine variables that could predict, in the preoperative period, the likelihood for the need for intraoperative temporary arterial occlusion using clips (temporary clipping) when surgically repairing intracranial aneurysms. Data collected prospectively between October 1989 and March 2010 of 1129 unruptured intracranial aneurysms in 934 patients ...
Saba Luca - - 2011
PURPOSE: Our purpose was to compare two post-processing techniques, Maximum-Intensity-Projection (MIP) and Volume Rendering (VR) for the study of perforator arteries. METHODS: Thirty patients who underwent Multi-Detector-Row CT Angiography (MDCTA) between February 2010 and May 2010 were retrospectively analyzed. For each patient and for each reconstruction method, the image quality ...
Edelman J James - - 2011
The main criticism of surgery in the SYNTAX trial was increased rate of stroke when compared to percutaneous coronary intervention. We aimed to determine whether avoiding aortic manipulation would decrease the rate of stroke. We performed a meta-analysis of seven studies comparing coronary artery bypass grafting (CABG) with and without ...
Lehmann Ryan K - - 2011
Anastomotic leak after sigmoidectomy for diverticular disease can have devastating consequences. Preservation or sacrifice of the descending colon or rectal arterial supply may affect the anastomosis. The aim of this study was to evaluate whether preservation of the inferior mesenteric artery (IMA) or superior rectal artery (SRA) was associated with ...
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