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Kawajiri Hidetake H Division of Medical Engineering and Materials, National Cerebral and Cardiovascular Center Research Institute, 5-7-1 Fujishiro-dai, Suita, 565-8565, Japan, - - 2014
The use of stent grafts for endovascular aortic repair has become an important treatment option for aortic aneurysms requiring surgery. This treatment has achieved excellent outcomes; however, problems like type 1 endoleaks and stent graft migration remain. Bio stent grafts (BSGs), which are self-expanding stents covered with connective tissue, were ...
Lim Hong-Gook HG Seoul National University Hospital Clinical Research Institute, Xenotransplantation Research Center, Seoul, Republic of Korea Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of - - 2014
Conventional crosslinking with glutaraldehyde (GA) renders cardiac xenografts inert, non-biodegradable and non-antigenic, but is a main cause for dystrophic calcification due to phospholipids, free aldehyde groups and residual antigenicity. A significant immune reaction to the galactose-α-1,3 galactose β-1,4-N-acetylglucosamine (α-Gal) of a GA-fixed cardiac xenograft occurs, leading to calcification. We developed ...
Hopkins Alan A AA Trinity Centre for Bioengineering, Trinity Biomedical Sciences Institute, 152-160 Pearse Street, Trinity College Dublin, Dublin 2, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland. Electronic address: - - 2014
The aim of this study was to determine the effect that a thermal renal denervation cycle has on the mechanical properties of the arterial wall. Porcine arterial tissue specimens were tested in three groups: native tissue, decellularized tissue, decellularized with collagen digestion (e.g. elastin only). One arterial specimen was used ...
Medsinge Avinash A 1 All authors: Department of Diagnostic Radiology, Division of Interventional Radiology, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh, PA - - 2014
OBJECTIVE. The objective of this article is to familiarize the reader with the most commonly used embolic agents in interventional radiology and discuss an approach for selecting among the different embolic agents. This article reviews their properties and uses a case-based approach to explain how to select one. CONCLUSION. A ...
Cunnane E M EM Centre for Applied Biomedical Engineering Research, Department of Mechanical, Aeronautical, and Biomedical Engineering, Material and Surface Science Institute, University of Limerick, Limerick, - - 2014
The failure of endovascular treatments of peripheral arterial disease represents a critical clinical issue. Specialised data are required to tailor such procedures to account for the mechanical response of the diseased femoral arterial tissue to medical device deployment. The purpose of this study is to characterise the mechanical response of ...
Kwon Kie Tae KT Department of Electrical Engineering, Magnetic Resonance Systems Research Laboratory, Stanford University, Stanford, California, - - 2014
To develop a new sequence for non-contrast-enhanced peripheral angiography using a sliding interleaved cylinder (SLINCYL) acquisition. A venous saturation pulse was incorporated into a three-dimensional magnetization-prepared balanced steady-state free precession sequence for non-contrast-enhanced peripheral angiography to improve artery-vein contrast. The SLINCYL acquisition, which consists of a series of overlapped thin ...
O'Leary Siobhan A SA Mechanical, Aeronautical and Biomedical Engineering Department, MSG-013-020, Centre for Applied Biomedical Engineering Research, Materials and Surfaces Science Institute, University of Limerick, Limerick, Ireland, - - 2014
Rupture of the abdominal aortic aneurysm (AAA) occurs when the local wall stress exceeds the local wall strength. Knowledge of AAA wall mechanics plays a fundamental role in the development and advancement of AAA rupture risk assessment tools. Therefore, the aim of this study is to evaluate the biaxial mechanical ...
SiƟman A Sezim AS Department of Otorhinolaryngology, Istanbul Training and Research Hospital, Istanbul, - - 2014
Despite the importance of its location, the functional behavior of the nasal septal turbinate (NST) is still not completely understood. Basic histological knowledge is still lacking. The aim of this study was to describe the histological features of the NST and to compare its morphometric features to those of the ...
Takahara Akira A Department of Pharmacology and Therapeutics, Faculty of Pharmaceutical Sciences, Toho University, - - 2014
The pulmonary vein has a unique electrophysiological property showing an autonomic electrical activity, and this phenomenon has been further focused on as a source of triggers of atrial fibrillation. The pulmonary vein cardiomyocytes have shorter action potential duration, less negative resting membrane potential, and smaller maximum upstroke velocity than those ...
Takahara Akira A Department of Pharmacology and Therapeutics, Faculty of Pharmaceutical Sciences, Toho University, - - 2014
The pulmonary vein has a unique electrophysiological property showing an autonomic electrical activity, and this phenomenon has been further focused on as a source of triggers of atrial fibrillation. The pulmonary vein cardiomyocytes have shorter action potential duration, less negative resting membrane potential, and smaller maximum upstroke velocity than those ...
Acharya Gayathri - - 2014
Native, allograft, xenograft and bioprosthetic semilunar valves are all susceptible to calcific degeneration. However, intrinsic differences in baseline calcium and phosphorus tissue concentrations within mammalian normal valve structural components (e.g., cusps, sinus, vessel wall) additionally subdivided by tripartite regions (e.g., right-, left- and non-coronary leaflets) have never been systematically measured ...
Spadaccio Cristiano - - 2014
The majority of approaches currently described and practiced in mitral repair surgery result in the vertical immobilization of the posterior leaflet, with the anterior leaflet striving to produce an adequate coaptation. Despite the satisfactory hemodynamic outcome and disappearance of mitral regurgitation, this non-physiological situation results in a redistribution of forces ...
Watanabe Yoshiki Y Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, - - 2014
Stent graft-related complications, including endoleaks and graft migration, are partly attributed to insufficient graft attachment to the aortic wall. ONO-1301, a stable synthetic prostacyclin agonist, reportedly reorganizes extracellular matrices, enhancing tissue healing. We hypothesized that ONO-1301-eluting stent grafts may strengthen graft attachment to the aortic wall. Polylactic acid polymer-conjugated ONO-1301, ...
Takeuchi Mugiho M Department of Cardiovascular Surgery, Osaka University Graduate School of Medicine, Osaka, - - 2014
To prevent postoperative migration and endoleaks after endovascular aneurysm repair, we developed a tissue-engineered vascular graft that integrates with the aortic wall by recruiting the host tissue into the graft scaffold. In the present study, we assessed the mechanical properties of the new graft and evaluated the integration between the ...
Chao Chia-Ter CT Renal Division, Department of Internal Medicine, National Taiwan University Hospital Jin-Shan Branch, New Taipei, Taiwan, - - 2014
Objective: To present a case of Salmonella bacteremia with a rare metastatic focus. Clinical Presentation and Intervention: A 61-year-old male presented with a suicide attempt after ingestion of half a bottle of toilet cleaner. He had a medical history of intravenous drug abuse and major depression. Persistent Salmonella enteritidis bacteremia ...
Moser Bernhard B Department of Thoracic Surgery, Division of Surgery, Medical University Vienna, Vienna, - - 2014
The molecular determinants of chronic thromboembolic pulmonary hypertension (CTEPH) and idiopathic pulmonary arterial hypertension (iPAH) remain poorly understood. The receptor for advanced glycation endproducts (RAGE) and its ligands: HMGB1 and S100A9 are involved in inflammatory disorders. We sought to investigate the role of the RAGE axis in patients with CTEPH ...
Veshkina Natalia N Faculty of Process and Environmental Engineering, Lodz Technical University, 213 Wólczanska St.,90-924 Lodz, - - 2014
In this study, a fluid-structure interaction analysis based on the application of patient-specific mechanical parameters of the aneurismal walls was carried out to predict the rupture side during an abdominal aortic aneurysm (AAA). Realistic geometry of the aneurysm was reconstructed from CT data acquired from the patient, and patient-specific flow ...
Arcucci A A University of Naples Federico II. - - 2014
Ascending aortic aneurysm (AsAA) is a consequence of medial degeneration (MD), deriving from apoptotic loss of smooth muscle cells (SMC) and fragmentation of elastin and collagen fibers. Alterations of extracellular matrix structure and protein composition, typical of medial degeneration, can modulate intracellular pathways. In this study we examined the relevance ...
Ho Man Fung MF Division of Vascular & Endovascular Surgery, Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital, Hong - - 2013
We report the management of a case of thigh abscess with ruptured left superficial femoral artery mycotic aneurysm in a 91-year-old woman with significant comorbidity. The abscess culture grew Escherichia coli and Acinetobacter baumannii. Vascular reconstruction was not performed because the foot was viable with a heavily contaminated wound. The ...
Reichlin Tobias - - 2012
Maximizing Lesion Durability in PVI. Recurrence of atrial fibrillation (AF) after a single ablation procedure has been reported in the range of 15-60% depending on patient selection. A major factor leading to AF recurrence after catheter ablation therapy is electrical reconnection of one or more pulmonary veins (PVs) due to recovery ...
Akiyama Takenori - - 2012
Spontaneous occlusion is a rare manifestation of ruptured vertebral artery dissection (VAD). Its natural history and treatment strategy have yet to be established due to its rarity. Here, we report five lesions involving spontaneous occlusion of VAD after subarachnoid haemorrhage, among which three lesions showed recanalisation. Based on our experience ...
Kobayashi Daisuke - - 2012
A 4-month-old infant with trisomy 21 and repaired complete atrioventricular septal defect developed endocarditis with methicillin-resistant Staphylococcus aureus in the early postoperative period. We report the successful replacement of the common atrioventricular valve with a single St. Jude mechanical prosthetic valve, along with an intraluminal pulmonary artery banding to restrict ...
Demirkol Sait - - 2012
Atrioventricular valve parachute deformity was generally seen in the mitral position, which is called parachute mitral valve. Parachute deformity is also seen in the tricuspid position, but this has rarely been reported as sporadic cases. All of these cases were associated with other congenital defects, such as double outlet right ...
Ash Stephen R - - 2012
A 75-year-old man on chronic peritoneal dialysis had unrecognized stenosis of the superior vena cava (SVC) due to pacemaker wires placed 5 years earlier. The patient was placed on hemodialysis after hernia surgery. When a tunneled central venous catheter for dialysis was placed from the right internal jugular (IJ) vein, ...
Burger Berdine M - - 2012
A 39-year-old white man presented with intractable headaches and papilledema. The initial workup, with normal MRI and MRV but elevated cerebrospinal fluid protein raised concerns about the putative diagnosis of idiopathic intracranial hypertension, and his condition remained refractory to maximum medical treatment. Angiography revealed cerebral venous sinus stenosis, thought to ...
Hong Jung Min - - 2012
We report a case of a patient with a double-primary aortoenteric fistula with an abdominal aortic aneurysm. A 75-year-old man was taken to the operating room for the repair of an abdominal aortic aneurysm and a suspected aortoenteric fistula between the aorta and sigmoid colon. Sudden onset of massive bleeding ...
Johns S M - - 2012
BACKGROUND: Congestive heart failure (CHF) in cats with left-sided heart disease is sometimes manifest as pleural effusion, in other cases as pulmonary edema. HYPOTHESIS: Those cats with pleural effusion have more severe left atrial (LA) dysfunction than cats with pulmonary edema. ANIMALS: 30 healthy cats, 22 cats with pleural effusion, ...
Tran Cam Ha T - - 2012
Electrical communication and its role in blood flow regulation are built on an examination of charge movement in single, isolated vessels. How this process behaves in broader arterial networks remains unclear. This study examined the nature of electrical communication in arterial structures where vessel length and branching were varied. Analysis ...
Lim Kyung-Jee - - 2012
Background:If full expiration during subclavian venous cannulation increases the distance between the subclavian vein (SCV) and the pleura or increases the diameter of the vein, it might decrease the incidence of pneumothorax and/or increase the success rate of venous cannulation. In this study, we evaluated the effect of full expiration ...
Sutton Alan J - - 2012
This article describes the fabrication procedures to create a one-way valved speech bulb obturator.
Arora Dheeraj - - 2012
Epidural analgesia is widely used in cardiothoracic surgery. Most of the complications associated with epidural analgesia are related to the insertion techniques of epidural catheter. A 68-year-old obese patient posted for coronary artery bypass grafting surgery developed headache followed by seizures after insertion of the thoracic epidural catheter. Magnetic resonance ...
Tsuneoka Yayoi - - 2012
We recorded the electrical activity from the myocardial layer of isolated mouse pulmonary veins with the glass microelectrode technique. Spontaneous electrical activity was observed in about half of the preparations, which appeared either as constant firing or as repetitive bursts. Noradrenaline enhanced, while acetylcholine reduced, automatic activity. The action potentials ...
Kopsachilis Nikolaos - - 2012
Branch retinal vein occlusion (BRVO) associated with ocular tuberculosis (TB) is a rare presentation of retinal vasculitis but it can also present in the absence of active uveitis. We present a 39-year-old patient with BRVO who slowly developed bilateral papilloedema due to TB in the central nervous system. To our ...
Strahle Jennifer - - 2012
Object The authors investigated the effect of a tablet computer on performance-level settings of a programmable shunt valve. Methods Magnetic field strength near the tablet computer with and without a cover was recorded at distances between 0 and 100 mm. Programmable valves were exposed to the tablet device at distances ...
Cheung Jim W - - 2012
BACKGROUND: -The mechanism of pulmonary vein (PV) triggers of atrial fibrillation (AF) remains unclear. We performed adenosine (ADO) testing following PV isolation to characterize spontaneous dissociated PV rhythm and ADO-induced PV ectopy. METHODS AND RESULTS: -Seventy-four patients (61 male; age 61 ± 10 years) undergoing PV isolation for AF were ...
Matsukawa Kanji - - 2012
Our laboratory has reported that central command blunts the sensitivity of the aortic baroreceptor-heart rate (HR) reflex at the onset of voluntary static exercise in conscious cats and spontaneous contraction in decerebrate cats. The purpose of this study was to examine whether central command attenuates the sensitivity of the carotid ...
Kameda Yoko - - 2012
Hes1 gene represses the expression of proneural bHLH factor Mash1, which is essential for the differentiation of the sympathetic ganglia and carotid body glomus cells. The sympathetic ganglia, carotid body and common carotid artery in Wnt1-Cre/R26R double transgenic mice were intensely labeled by X-gal staining, i.e., the neural crest origin. ...
Nair Hema C - - 2012
Central venous pressure monitoring line insertion is routine prior to the conduct of cardiac surgery, and in rare instances, malposition can contribute to operative complications. We describe here how a central venous line lying in the right atrium became caught in a left atrial (LA) closure suture during a mitral ...
Kim Joonhyuk - - 2012
The definition of a successful ablation of atrial fibrillation can vary among electrophysiologists. A commonly described endpoint is bidirectional block of the four pulmonary veins. A case is described in which entrance block into a pulmonary vein was achieved early during pulmonary vein isolation. However, triggers from the pulmonary vein ...
Sayani Raza - - 2012
The present study describes the imaging findings in a patient with dural arteriovenous fistula (AVR) and arteriovenous malformation (AVM) with bilateral subcortical and basal ganglia calcification. A 29 year old male patient presented with chief complaint of recent onset of generalized tonic clonic seizures and mild disorientation. The imaging studies ...
Sughimoto Koichi - - 2012
A combination of cor triatriatum and persistent left superior vena cava without communication to the coronary sinus is uncommon. A 62-year-old male with this diagnosis in conjunction with atrial fibrillation underwent successful intracardiac repair done with a unique method. After a maze procedure and enlargement of the route from the ...
Kassavin Daniel S - - 2012
Abstract Purpose: To describe the use of in situ fenestration to facilitate management of a disconnected iliac stent-graft limb that could not be repaired by conventional endovascular techniques. Technique: An 85-year-old man who had a Zenith endovascular graft deployed 3 years earlier for a 10-cm infrarenal abdominal aortic aneurysm presented with ...
Artrip John H - - 2012
Operations for left atrioventricular valve insufficiency after repair of an atrioventricular septal defect can be challenging. Repair techniques largely depend on closure of the residual cleft in the anterior leaflet in conjunction with a posterior annuloplasty. Profound deficiencies in anterior leaflet tissue can make primary cleft closure impractical. A simplified ...
Siniscalchi Antonio A Department of Neuroscience, Neurology Division, "Annunziata" Hospital, Cosenza, Italy ‡ Regional delegate - - 2012
Limb shaking is a rare form of transient ischemic attack (TIA) that can easily be confused with focal motor seizures. We report a case of a 61-year-old man with rhythmic jerky movements of his left limb, without loss of awareness, that have occurred about once per month for the past ...
Starck Christoph T - - 2012
The exclusion of the left atrial appendage (LAA) has been used to reduce the risk of stroke associated with atrial fibrillation (AF). While LAA exclusion has been associated with a reduced risk of stroke, the effect on the electrical activity of the LAA (a potential source of AF) remains unknown. ...
Akdemir Ramazan R Department of Cardiology, Faculty of Medicine, Sakarya University, Sakarya, Turkey. - - 2013
A 38-year-old man who had a history of percutaneous coronary artery coil occlusion was admitted to our hospital with chest pain and shortness of breath. His complaint was chest pain, which is typical. ST depressions were observed during the treadmill exercise stress test. Coronary angiography demonstrated the persistence of a ...
Vötsch Andreas - - 2012
Four hours after surgery for aortic valve stenosis and tricuspid valve regurgitation, an unknown foreign body was present on the routine chest X-ray. We performed re-sternotomy in order to retrieve this foreign body. The foreign body was easy to move on fluoroscopy but we could not extract it. We concluded ...
Porzionato Andrea - - 2012
The aim of the present study is to provide a review of cytochemical, clinical and experimental data indicating disruption of perinatal carotid body maturation as one of the possible mechanisms underlying SIDS pathogenesis. SIDS victims have been reported to show alterations in respiratory regulation which may partly be ascribed to ...
Kumar S Prathap - - 2012
Atrial septal aneurysm is an uncommon cardiac anomaly that is usually asymptomatic or occasionally associated with cardioembolic events. We present the unusual impeding effect of an atrial septal aneurysm on venous drainage during cardiopulmonary bypass in a 70-year-old man who underwent aortic valve replacement and coronary artery bypass graft surgery.
Tanaka Koyu - - 2012
A 57-year-old man with mitral and aortic valve stenosis was admitted to our hospital. An electrocardiogram showed atrial fibrillation. After receiving informed consent, we performed a double valve replacement (DVR) with bioprostheses and maze procedure, utilizing a port-access technique. The operation and aortic cross-clamping times were 460 and 228 min, respectively. ...
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