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Results 251 - 300 of 1745
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Okuyama Kazuaki - - 2013
Transcatheter aortic valve replacement (TAVR) is a procedure whose technique and devices are evolving rapidly, facilitating increased safety and efficacy. However, there remain challenging cases. Considering the concept of crossing a bulky prosthesis through a calcified and narrowed aortic valve, it seems not unexpected that some of these procedures have ...
Tomei Krystal Lynne - - 2013
A 50-year-old man with neurofibromatosis type 1 presented to the emergency department after a spontaneous hemorrhage into a facial plexiform neurofibroma. An emergent selective angiography of the external carotid artery was performed with Onyx embolization of the origin of the internal maxillary artery as well as the superficial temporal artery ...
Papamatheakis Demosthenes G - - 2013
This review provides evidence that antenatal hypoxia, which represents a significant and worldwide problem, causes prenatal programming of the lung. A general overview of lung development is provided along with some background regarding transcriptional and signaling systems of the lung. The review illustrates that antenatal hypoxic stress can induce a ...
Miyachi Shigeru - - 2013
We describe an enhanced endovascular procedure for the coiling of broad-necked basilar terminal aneurysms with a combined balloon/stent assist technique. A balloon-assisted catheter is inserted in the origin of one posterior cerebral artery (PCA) and an assisted stent is deployed from the opposite PCA to the basilar artery. A microcatheter ...
Graidis Christos - - 2013
Percutaneous revascularisation in anomalous coronary arteries poses certain technical difficulties, especially in the selective cannulation of the diseased vessel and the coaxial positioning of the guiding catheter for optimum stability. We report a case of successful stent implantation in a single coronary artery (SCA) arising from the right sinus of ...
Gempp Emmanuel - - 2013
Haemoptysis and pulmonary oedema following deep breath-hold diving have been described in recent years. We describe the case of a 33-year-old healthy military diver who presented symptoms suggestive of pulmonary oedema after two breathhold dives, the first lasting 0.5-1 min and the second 1-2 min, to 6 metres' depth in ...
Liberman Marcel - - 2013
Vascular calcification in coronary artery disease is gaining importance, both in scientific research and in clinical and imaging applications. The calcified plaque is considered the most relevant form of atherosclerosis within the coronary artery tree and is frequently a challenge for percutaneous intervention. Recent studies showed that plaque calcification is ...
Lee Dong Hoon - - 2013
We report a case of spontaneous bilateral intracranial vertebral artery dissecting aneurysms with subarachnoid hemorrhage. One dissecting lesion was treated with a coronary balloon-mounted stent (BMS) technique; however, due to differences in access route tortuosity, the other lesion was treated with a self-expandable stent (SES) technique. After 2 months, the ...
Prince Ethan A EA Division of Interventional Radiology, Department of Diagnostic Imaging, Warren Alpert Medical School of Brown University, Providence, Rhode - - 2013
This article is intended to provide a review of clinically relevant neurovascular anatomy. A solid understanding of the vascular anatomy of the brain and spine are essential for the safe and effective performance of neurointerventional radiology. Key concepts to master include collateral pathways and anastomoses between the external and internal ...
Sahay Sandeep S 1 Division of Pulmonary, Critical Care and Sleep Medicine, University of Texas, Health Science Center at Houston, Houston, Texas, - - 2013
Abstract Pulmonary arterial hypertension (PAH) is a serious condition that can lead to right heart failure and death. Pericardial effusion in PAH is associated with significant morbidity and mortality, and its pathogenesis is complex and poorly understood. There are few data on the prevalence of pericardial effusion in PAH, and ...
Mohanty Sujata S Department of Oral and Maxillofacial Surgery, Maulana Azad Institute of Dental - - 2013
Pseudoaneurysms are among very rare complications of maxillofacial trauma. When encountered, they have the potential to cause life-threatening hemorrhage. A wise surgeon should consider the possibility of underlying aneurysm even if the classic sign of pulsatile mass is not present. The role of interventional radiology is immaculate in the management ...
Lee Timmy - - 2013
Vascular access dysfunction is a major cause of morbidity and mortality in hemodialysis patients. The most common cause of vascular access dysfunction is venous stenosis from neointimal hyperplasia within the perianastomotic region of an arteriovenous fistula and at the graft-vein anastomosis of an arteriovenous graft. There have been few, if ...
Caputo M - - 2013
Computational models are used to study the combined effect of biomechanical and biochemical factors on coronary in-stent restenosis, which is a postoperative remodeling and regrowth pathology of the stented arteries. More precisely, we address numerical simulations, on the basis of Navier-Stokes and mass transport equations, to study the role of ...
Coufalova Lucie - - 2013
Aortal valve mineralization very frequently causes a genesis of aortic stenosis, which is the most often surgically treated heart disease. Hydroxyapatite deposits have been identified as one of the causes leading to the loss of elasticity of the aortic valves. It is known that phosphates/calcium is accumulated in valve tissues ...
Vijayvergiya Rajesh - - 2013
Second generation drug eluting stents (DES) have shown better safety and efficacy in comparison to first generation DES, because of thinner struts, nondurable polymers and coating with better anti-proliferative drugs. The newer DES with cobalt alloy base have demonstrated a greater trackability, deliverability, conformability, flexibility and radio-opacity. However, these thin ...
Numasawa Yohei - - 2013
We herein report a 59-year-old man with a chronic totally occluded left anterior descending artery treated by percutaneous coronary intervention via an ipsilateral intraseptal channel using an intravascular ultrasound-guided retrograde wire-crossing technique. When an antegrade approach is not feasible or fails, a retrograde approach to a chronic totally occluded lesion ...
Hasan Md Anwarul - - 2013
There is a growing demand for off-the-shelf tissue engineered vascular grafts (TEVGs) for replacement or bypass of damaged arteries in various cardiovascular diseases. Scaffolds from the decellularized tissue skeletons to biopolymers and biodegradable synthetic polymers have been used for fabricating TEVGs. However, several issues have not yet been resolved, which ...
Pontini Alex - - 2013
Thrombotic events in vascular substitutes are the main cause of obliteration of most microvascular prostheses and subsequent failure of microvascular anastomoses. The development of new biomaterials for vascular replacement aims to obtain an ideal graft for microvascular surgery. Completely bioresorbable vascular prostheses with the capacity to induce regeneration and growth ...
Kosanovic Djuro - - 2013
Schistosomiasis is a parasitic disease affecting a large portion of the global human population, and represents one of the most common causes of pulmonary hypertension around the world(1,2,3). Schistosomiasis-associated pulmonary arterial hypertension (PAH) is classified in the group 1.4.5., according to the current clinical classification of pulmonary hypertension from Dana ...
Hogarth A J - - 2013
Over the past few decades, the mainstay of hypertension management has been pharmacological therapy; however, there is now a growing body of evidence that drug-resistant hypertension can be managed effectively by renal artery ablation. Several studies have documented the feasibility and safety of this treatment, although data regarding long-term outcomes ...
O' Sullivan Katie E - - 2013
We describe an uncommon presentation of severely advanced aortic atherosclerosis in a 48-year old man with a history of hypertension and heavy smoking. Initial presentation with upper limb ischaemia led to the diagnosis of an aortic arch atheroma occluding 90% of the aortic lumen, managed with deep hypothermic circulatory arrest ...
Gould K Lance - - 2013
Angiographic severity of coronary artery stenosis has historically been the primary guide to revascularization or medical management of coronary artery disease. However, physiologic severity defined by coronary pressure and/or flow has resurged into clinical prominence as a potential, fundamental change from anatomic- to physiologically-guided management. This review addresses clinical coronary ...
Ghali Michael George Zaki - - 2013
Mycotic aneurysms may arise in the setting of many local or systemic infections. Those of the intracranial circulation are especially worrisome due to their potential to compress vital neural structures and their propensity for rupture with consequent hemorrhage. Mycotic aneurysms of the intracavernous internal carotid artery (ICA) represent an exceedingly ...
Bank William O - - 2013
Endovascular embolization of brain arteriovenous malformations (AVMs) has improved with liquid occlusive agents, but flow-related and anatomic restrictions limit endovascular capabilities. AVM compartments supplied by leptomeningeal networks and feeding arteries too small and/or tortuous for safe catheterization are rarely penetrated by liquid occlusive agents. A case with both impediments prompted ...
Davis Christopher B - - 2013
A timely diagnosis of aortic dissection is associated with lower mortality. The use of emergent bedside ultrasound has been described to diagnose aortic dissection. However, there is limited literature regarding the use of bedside ultrasound to identify superior mesenteric artery dissection, a known high-risk feature of aortic dissection. Our aim ...
Saba Luca - - 2013
Atherosclerosis involving the carotid arteries has a high prevalence in the population worldwide. This condition is significant because accidents of the carotid artery plaque are associated with the development of cerebrovascular events. For this reason, carotid atherosclerotic disease needs to be diagnosed and those determinants that are associated to an ...
Shah A - - 2013
Central venous catheterisation is a commonly performed procedure in anaesthesia, critical care, acute and emergency medicine. Traditionally, subclavian venous catheterisation has been performed using the landmark technique and because of the complications associated with this technique, it is not commonly performed in the United Kingdom - where the accepted practice ...
Morell Carola M - - 2013
Cholangiocytes are involved in a variety of processes essential for liver pathophysiology. To meet their demanding metabolic and functional needs, bile ducts are nourished by their own arterial supply, the peribiliary plexus. This capillary network originates from the hepatic artery and is strictly arranged around the intrahepatic bile ducts. Biliary ...
Blecha Matthew J - - 2013
Critical limb ischemia refers to the clinical state of advanced arterial occlusive disease, placing an extremity at risk for gangrene and limb loss. Critical limb ischemia has 2 broad clinical subcategories that are vital to differentiate: acute limb ischemia and chronic arterial occlusive disease. This article reviews the etiologies, diagnosis, ...
de Perrot Marc - - 2013
Limited tissue is available to cover the bronchial stump after right extrapleural pneumonectomy for malignant pleural mesothelioma. After completing the resection, the pericardial reflection can be freed from the superior vena cava, the right pulmonary artery and veins, and the posterior wall of the pericardial sac between the transverse and ...
Mousa Albeir Y - - 2013
The evolution of minimally invasive procedures to treat aortic aneurysms has expanded to include access interventions as well. Traditionally, groin exposures have been the standard approach for common femoral artery exposure with open cutdown; however, inherent and related complications to that approach have paved the road to the percutaneous approach. ...
Sastri Savitr Bv - - 2013
Giant aneurysms of the cavernous carotid artery are rare entities which present predominantly with features of compression of the adjacent neural structures, most commonly the III, IV, VI and V cranial nerves. Historically, treatment options included occlusion of the feeding vessel, direct surgery on the aneurysm, bypass procedures and in ...
Tverskaya M S - - 2013
Histoenzymological changes, indicating inhibition of the main metabolic processes, were found in the conduction cardiomyocytes of the left ventricle and ventricular septum in experimental stenosis of the aorta. The histoenzymological changes in the conduction system of both ventricles and ventricular septum were similar in experimental stenosis of the pulmonary artery ...
Kim Young-Tae - - 2013
The current study proposes a model of the cardiovascular system that couples heart cell mechanics with arterial hemodynamics to examine the physiological role of arterial blood pressure (BP) in left ventricular hypertrophy (LVH). We developed a comprehensive multiphysics and multiscale cardiovascular model of the cardiovascular system that simulates physiological events, ...
Tadic Marijana - - 2013
Arterial hypertension and atrial fibrillation (AF) are very prevalent cardiovascular diseases, commonly seen together. Considering the fact that frequency of these medical conditions is constantly increasing due to human life extension, AF will be one of the major risks of cardiovascular morbidity and mortality in the future. Several pathophysiological mechanisms ...
McLaughlin Nancy - - 2013
Arteriovenous malformations (AVMs) of the superior vermis, superomedian cerebellum, and tectum are uncommon lesions. Various routes have enabled accessing the precentral cerebellar fissure and the posterior incisural space. We review the OITT technique, its advantages and limitations for treatment of such AVMs. We present a case series of six superior ...
Mortazavi Martin M - - 2013
Vein of Galen aneurysmal malformations are a rare and diverse group of entities with a complex anatomy, pathophysiology, and serious clinical sequelae. Due to their complexity, there is no uniform treatment paradigm. Furthermore, treatment itself entails the risk of serious complication. Offering the best treatment option is dependent on an ...
Akkus Nuri I - - 2013
Peripheral arterial disease involvement of the superficial femoral artery (SFA) is common. Different endovascular techniques are used successfully for revascularization of this artery. A retrograde approach to chronic total occlusion (CTO) of the SFA through the ipsilateral popliteal artery has been used occasionally if an antegrade approach is not feasible ...
van Ooij P J A M - - 2013
When breathing oxygen with partial oxygen pressures [Formula: see text] of between 50 and 300kPa pathological pulmonary changes develop after 3-24h depending on the [Formula: see text] . This kind of injury (known as pulmonary oxygen toxicity) is not only observed in ventilated patients but is also considered an occupational ...
Lee Michael S - - 2013
Vascular access plays a critical role in the success of percutaneous coronary intervention (PCI). Transradial access is more commonly implemented in Europe compared to the United States, although it has increased in the United States over the past several years. Given that the radial artery is more superficial than the ...
Emmert Maximilian Y - - 2013
Endovascular occlusion of blood vessels is an important part of interventional therapy concepts. Here, we evaluate the feasibility, procedural safety and efficacy of the novel endovascular occlusion system (EOS) in the arterial system in a porcine model. Thirteen devices were deployed in the iliac and femoral arteries (diameter: 4-5 mm) ...
Garbey Marc - - 2013
Adaptation of vein bypass grafts to the mechanical stresses imposed by the arterial circulation is thought to be the primary determinant for lesion development, yet an understanding of how the various forces dictate local wall remodeling is lacking. We develop a dynamical system that summarizes the complex interplay between the ...
Ansari Farzana - - 2013
The purpose of this study was to review the available literature regarding the biomechanics of the superficial femoral artery (SFA) and popliteal artery (PA) in patients with peripheral arterial disease (PAD). Stents are one of many available therapies used to treat patients with PAD. Because stents are permanent implants, they ...
Ikenaga Shigeru S Department of Surgery and Clinical Science, Yamagchi University School of Medicine, Yamaguchi, - - 2014
We describe a rare case of an ascending aortic pseudoaneurysm 31 years after mitral valve replacement with a Björk-Shiley mechanical valve. The aneurysm presumably expanded gradually during the years following surgery. As the valve was functioning normally, it was left in situ while the ascending aorta was replaced. This report ...
Kim Kwang Seog - - 2013
Abstract We successfully reconstructed a large defect that had been created by resection of an unstable, contracted, and hypertrophic scar with a chronic ulcer on the lower sternal area of a 67-year-old man. We used bilateral V-Y advancement flaps based on internal mammary artery perforators.
Dahdouh Ziad - - 2013
Iatrogenic aortic or coronary dissections are well known complications in the field of interventional cardiology. They are the most dreadful situations, often with terrible consequences. We present herein a case of bidirectional dissection to the right coronary artery and to the ascending aorta during a transcatheter aortic valve implantation procedure.
Hori Daijiro D Department of Cardiovascular Surgery, Fujigaoka Hospital, Showa University, Kanagawa, - - 2013
A 73-year-old man with 2-vessel coronary artery disease underwent a staged percutaneous coronary intervention that resulted in rupture of the right coronary artery and pseudoaneurysm formation. Although the pseudoaneurysm regressed over a week, it reexpanded after a year. Resection of the pseudoaneurysm and coronary artery bypass grafting were performed. The ...
Gould Sarah T - - 2013
This review highlights aspects of calcific aortic valve disease that encompass the entire range of aortic valve disease progression from initial cellular changes to aortic valve sclerosis and stenosis, which can be initiated by changes in blood flow (hemodynamics) and pressure across the aortic valve. Appropriate hemodynamics is important for ...
Carabello Blase A - - 2013
Aortic stenosis is perhaps the most common of all valvular heart diseases in the developed nations of the world. Once primarily caused by rheumatic fever, the most common pathogenesis today is an active inflammatory process with some features that are similar to atherosclerosis. Because of this shift, the age at ...
Li-Fei Wu - - 2013
Carotid endarterectomy(CEA)has been proved to be an effective surgery to treat the cerebral ischemia caused by carotid atherosclerotic stenosis. However,there is still no effective mean for the early diagnosis of the CEA-related severe complications such as stroke and death. Many studies have explored the potential biomarkers for stroke alert,although there ...
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