Search Results
Results 401 - 450 of 1932
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Paparoni Francesco - - 2013
Coronary artery fistulas to the coronary sinus are very rare coronary anomalies most often resulting in extreme dilatation of the donor coronary artery and the receiving vessel. However, despite common impressive appearance, their clinical and functional impact may be extremely various from asymptomatic and benign cases to disabling and life ...
Généreux P - - 2013
Paravalvular leak (PVL) is a frequent complication of transcatheter aortic valve replacement (TAVR) that occurs at a much higher rate after TAVR than after conventional surgical aortic valve replacement. Recent reports indicating that PVL may be associated with increased late mortality have raised significant concern. However, the heterogeneity of methods ...
Melgies Joanna - - 2013
Currently, there are no formal screening programmes for coronary artery disease (CAD). Computed tomographic coronary angiography (CTCA) has been suggested as a non-invasive and reliable method of atherosclerotic plaque assessment, with the potential for use in screening programmes. In this article, we briefly present the current understanding of atherosclerotic plaque ...
Du Ju - - 2013
A significant number of research articles have focused on pulmonary delivery as an alternative administration route owing to no first-pass metabolism, low protease activity, thin epithelium barrier and large surface area in the lung system. Controlled release in the pulmonary delivery system further reduces loading dose, frequency of dosing and ...
Kowlgi N Gurukripa - - 2013
Vertebral artery dissection (VAD) is an important cause of stroke in the young. It can present nonspecifically and may be misdiagnosed leading to adverse consequences. Dissections are usually preceded by trauma or mechanical stress; the vascular stressors may be trivial as this condition has been described in association with manipulation ...
Hammel James M - - 2013
A technique is described for exposure of the descending aorta, allowing separate arterial cannulation for perfusion of the upper and lower body during reconstruction of the aortic arch, maintaining continuous full-flow cardiopulmonary bypass to the entire body. This single technique is applicable to all aortic arch pathologies and allows an ...
Elzein Chawki - - 2013
Valve repair in children and young adults is an attractive alternative to replacement or Ross procedure. In the past, the various valvuloplasty techniques have addressed isolated valve pathology. Recently, however, a holistic approach involving repair of all aortic root structures has evolved and promised to be an excellent alternative to ...
Citro Rodolfo R aU.O. UTIC-Cardiologia - Ospedale San Luca Vallo della Lucania, Vallo della Lucania bS.C. Cardiochirurgia, Dipartimento Medico-Chirurgico - Torre Cuore - Azienda Ospedaliera Universitaria 'San Giovanni di Dio e Ruggi d'Aragona', Salerno cPoliclinico San Donato - IRCSS - San Donato Milanese, San Donato Milanese, Milan, - - 2013
We report an unusual case of impending paradoxical embolization in a 69-year-old woman heterozygote carrier of factor V Leiden mutation. The patient presented to the emergency room with the clinical scenario of massive pulmonary embolism. Serial echocardiographic examinations revealed a large thrombus in the right atrium floating via a patent ...
Cho Jae Yeong JY Korea Cardiovascular Stent Research Institute of Chonnam National University, Gwangju, - - 2013
Restenosis and stent thrombosis remain major concerns after percutaneous coronary intervention for the treatment of coronary artery disease. The present review was undertaken in order to highlight the various coronary stents that have been investigated in our Heart Research Center, and how far we have come from the first heparin-coated ...
Barner Hendrick B HB Division of Cardiothoracic Surgery, St. Louis University Hospital, - - 2013
Strategic planning is integral to any operation but complexity varies immensely and therefore the effort necessary to create the optimal plan. The previous three reports have discussed individual conduits and herein is an attempt to present approaches to common situations which the author favors. Although much has been learned over ...
Al-Sabti Hilal Ali HA Department of Surgery, Sultan Qaboos University Hospital, - - 2013
Coronary artery bypass grafting (CABG) was first used in the late 1960s. This revolutionary procedure created hope among ischemic heart disease patients. Multiple conduits are used and the golden standard is the left internal mammary artery to the left anterior descending artery. Although all approaches were advocated by doctors, the ...
Steinhorn Robin H - - 2013
Normal pulmonary vascular development in infancy requires maintenance of low pulmonary vascular resistance after birth, and is necessary for normal lung function and growth. The developing lung is subject to multiple genetic, pathological and/or environmental influences that can adversely affect lung adaptation, development, and growth, leading to pulmonary hypertension. New ...
Meffert Philipp - - 2013
Iatrogenic paraplegia has been accompanying cardiovascular surgery since its beginning. As a result, surgeons have been developing many theories about the exact mechanisms of this devastating complication. Thus, the impact of single arteries that contribute to the spinal perfusion is one of the most discussed subjects in modern surgery. The ...
Magro Elsa - - 2013
Anatomic arrangement of venous system within the transverse foramen is a controversial topic among authors. Precise knowledge of this arrangement is necessary in imaging where vertebral artery dissection is suspected, as well as in surgical approaches of cervical spine. This knowledge objective cannot be achieved without a prerequisite knowledge of ...
Balistreri Carmela Rita - - 2013
Ageing has a striking impact on heart and vascular system, and particularly on the large elastic arteries, i.e. aorta, determining a multitude of changes at different structural and functional levels. As result, medial degeneration (MD) occurs. A characteristic example of MD is sporadic thoracic aortic aneurysm (S-TAA), whose patho-physiological mechanisms ...
Diaz Orlando - - 2013
Endovascular treatment of intracranial aneurysms via flow diversion has become increasingly popular over the past several years. The flow redirection endoluminal device (FRED; Microvention, Tustin, California, USA) system is a next generation closed cell paired stent flow diversion device. Our initial clinical experience with the FRED system is described. We ...
Weisbrod Robert M RM Vascular Biology Section, Boston University School of Medicine, 650 Albany St, Boston, MA 02118. - - 2013
Stiffening of conduit arteries is a risk factor for cardiovascular morbidity. Aortic wall stiffening increases pulsatile hemodynamic forces that are detrimental to the microcirculation in highly perfused organs, such as the heart, brain, and kidney. Arterial stiffness is associated with hypertension but presumed to be due to an adaptive response ...
Huang Jing-Bin - - 2013
Epigenetics refers to changes in phenotype and gene expression that occur without alterations in DNA sequence. MicroRNAs are relatively recently discovered negative regulators of gene expression and act at the posttranscriptional level. This review summarizes epigenetic mechanisms of pulmonary hypertension, focusing on microRNAs related to pulmonary hypertension. There are three ...
O'Sullivan Katie E - - 2013
Aortobronchial fistula (ABF) in the setting of aortic coarctation repair is very rare but uniformly fatal if untreated. Endovascular stenting of the descending aorta is now the first-choice approach for ABF presenting with haemoptysis and offers a less-invasive technique with improved outcomes, compared with open repair. We report a case ...
Hsiao Hao-Ming - - 2013
Intravascular stenting has emerged as the primary treatment for vascular diseases and has received great attention from the medical community since its introduction two decades ago. The endovascular self-expanding stent is used to treat peripheral artery diseases; however, once implanted, these stents suffer from various cyclic motions caused by pulsatile ...
Spinu C - - 2013
Life-threatening hemoptysis is a severe condition that requires rapid diagnosis and treatment. One of the treatments of choice is embolization. The initial assessment aims to locate the origin and cause of bleeding. The technological advance of the development of multidetector computed tomography (MDCT) has changed the management of patients with ...
Lechtzin N N Department of Medicine, Johns Hopkins University School of Medicine, Baltimore MD, United States. Electronic address: - - 2013
Acute pulmonary exacerbations are central events in the lives of individuals with cystic fibrosis (CF). Pulmonary exacerbations lead to impaired lung function, worse quality of life, and shorter survival. We hypothesized that aggressive early treatment of acute pulmonary exacerbation may improve clinical outcomes. Describe the rationale of an ongoing trial ...
Godinas Laurent - - 2013
New treatments for pulmonary arterial hypertension (PAH) are a crucial need. The increased proliferation, migration, and survival of pulmonary vascular cells within the pulmonary artery wall in PAH have allowed successful transposition of pathophysiological elements from oncologic researches. Next steps will require translation of these biological advances in PAH therapeutic ...
Xiang J - - 2013
SUMMARY:Image-based computational fluid dynamics holds a prominent position in the evaluation of intracranial aneurysms, especially as a promising tool to stratify rupture risk. Current computational fluid dynamics findings correlating both high and low wall shear stress with intracranial aneurysm growth and rupture puzzle researchers and clinicians alike. These conflicting findings ...
Martin-Yuste Victoria - - 2013
Percutaneous coronary intervention (PCI) outcomes of chronic total occlusions (CTO) lesions have improved in recent years due to a better understanding of the physiopathology of the disease, more effective techniques and improvement in the design of new devices. We describe a new use of the Tornus® Catheter in the anterograde ...
Spiotta Alejandro M - - 2013
Endovascular embolization for tumors and vascular malformations has emerged as an important preoperative adjunct prior to resection. We describe the advantages of utilizing a recently released dual lumen balloon catheter for ethylene vinyl alcohol copolymer, also known as Onyx (ev3, Irvine, California, USA), embolization for a variety of head and ...
Qureshi Ahmad U - - 2013
Incomplete involution of valve of systemic venous sinus can present across a spectrum of anatomical lesions ranging from eustachian valve to division of right atrium (cor triatriatum dexter) with overlapping features. We present the case of a neonate presenting with cyanosis, having persistent valve of systemic venous sinus with anatomical ...
Desena Holly C - - 2013
Pathological details are lacking of various techniques used for interatrial defect (IAD) creation in lesions requiring mixing or with left atrial hypertension. Therefore, the morphology of the IAD created by different interventional techniques is described. The atrial septa of ten euthanized piglets (seven at <3 days and three at 2 weeks of ...
Buyukkaya Ramazan - - 2013
Cervical vertebral arteriovenous fistulas (VAFs) are rare clinical entities between the vertebral artery and veins of the neighborhood. We report the first approach in the literature experience in the treatment of high-flow VAF caused by percutaneous catheterization of the internal jugular vein, which was successfully occluded with coils and Solitaire ...
Malekzadeh Sonaz - - 2013
Abdominal aortic aneurysm (AAA) is a complex degenerative disease, which leads to morbidity and mortality in a large portion of the elderly population. Current treatment options for AAA are quite limited as there is no proven indication for pharmacological therapy and surgery is recommended for AAA larger than 5·5 cm in ...
Rabellino Martin - - 2013
<title>ABSTRACT</title> <bold><italic>Background:</italic></bold> The standard approach for the endovascular treatment of a dysfunctional or occluded hemodialysis access in the upper limbs includes a direct intervention through the access itself or alternatively, when not feasible, through the brachial or radial artery access. Nonetheless, there are certain circumstances in which these approaches are ...
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 ...
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 ...
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 ...
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 ...
Miyachi Shigeru S Department of Neurosurgery, Nagoya University Graduate School of Medicine; Nagoya, Aichi, Japan - E-mail: - - 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 ...
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 ...
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