Search Results
Results 501 - 550 of 1914
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Goverde P C J M - - 2013
Endovascular treatment of occlusive disease of the aortic bifurcation is challenging. We developed the Covered Endovascular Reconstruction of Aortic Bifurcation or CERAB-technique, as a new approach for extensive and/or recurrent aortoiliac occlusive disease using three covered balloon expandable stents to reconstruct the aortic bifurcation. This configuration provides the ability to ...
Moris D N - - 2013
Aim: Abdominal aorta aneurysm (AAA) is a serious threat for human life, especially in such cases when it is asymptomatic until aneurysm rupture, which is a general cause of death in AAA subjects. We aim to give a conceptual description of the potential biomarkers that can correlate and predict the ...
Kwok On-Hing - - 2013
The development of modern coronary stent platforms has transformed the landscape of interventional cardiology. Contemporary coronary stents are much more deliverable than older-generation stents. However, longitudinal deformation has emerged as a "new" complication in modern coronary stent platforms. Although most reported cases of longitudinal stent deformation involve mechanical or technical ...
Wong Dennis T L - - 2013
Neoatherosclerosis is one of the multiple mechanisms that cause stent thrombosis, which is one of the rare but severe complications of drug-eluting stent implantation. This case study highlights the use of optical coherence tomography in identifying the precise mechanism of the stent thrombosis, which helped guide the appropriate intervention.
Barner Hendrick B - - 2013
This is the third in a series on coronary artery bypass which reviews three alternative arterial conduits. The radial artery has become the most widely used of the three and accumulating experience demonstrates better patency at 10 years versus saphenous vein. Drawbacks are a long incision on the forearm, the ...
Fraidenburg Dustin - - 2013
Abstract Fraidenburg, Dustin, Jason Yuan. Current and future targets for pulmonary arterial hypertension. High Alt Med Biol 14:134-143, 2013.-Pulmonary arterial hypertension (PAH) remains a poorly understood disorder with dire consequences. Progression of disease often leads to right heart failure and death without lung transplantation. Limited therapeutic strategies exist for the ...
Scherrer Urs - - 2013
Abstract Scherrer, Urs, Yves Allemann, Emrush Rexhaj, Stefano F. Rimoldi, and Claudio Sartori. Mechanisms and drug therapy of pulmonary hypertension at high altitude. High Alt Med Biol 14:126-133, 2013.-Pulmonary vasoconstriction represents a physiological adaptive mechanism to high altitude. If exaggerated, however, it is associated with important morbidity and mortality. Recent ...
Khatri Rakesh - - 2013
The use of balloon remodeling technique for coil embolization has developed into a safe alternative to stent assisted coil embolization for wide-necked aneurysms. Dual antiplatelet therapy when a stent is placed for assistance in the treatment of ruptured aneurysms is of concern. There are cases in which a single balloon ...
Saad Wael E A - - 2013
Transvenous obliteration of gastric varices can be performed from the systemic venous side (draining veins or shunts) or from the portal venous side (portal afferent feeders). Balloon-occluded transvenous obliteration from the systemic veins is referred to as balloon-occluded retrograde transvenous obliteration (BRTO) and balloon-occluded transvenous obliteration from the portal veins ...
Choi Chan-Young - - 2013
Intracranial aneurysms in the neonate are very rare and their clinicopathological findings remain unclear. We report a 26-day-old premature neonate who underwent microsurgical clipping on the ruptured middle cerebral artery bifurcation aneurysm successfully with a review of relevant literature.
Sabach Amy Srur - - 2013
The purpose of this review is to illustrate various applications of gadofosveset trisodium in evaluating abdominal and peripheral vascular disease. The basic properties, technical considerations, and clinical and potential future applications of gadofosveset are described. Gadofosveset trisodium facilitates comprehensive high-resolution arterial and venous MR angiography. Because of its prolonged intravascular ...
Oderich Gustavo S - - 2013
Endovascular repair of complex aneurysms involving the visceral arteries has become a reality. Fenestrated endovascular aortic repair (FEVAR) has been used with increasing frequency to treat complex aortic aneurysms. The Zenith fenestrated stent-graft system (Cook Medical Inc, Brisbane, Australia) was approved for commercial use in the United States in April ...
Sequeira Adrian - - 2013
The use of stents has become common practice in various interventional fields. The purpose of this article is to provide the interventionalist with an understanding of the basic structure of a stent. We describe the etymology, the classification and describe various terms used by engineers as they strive to develop ...
Abdulkareem Nada - - 2013
The association between ascending aortic aneurysm (AA) and bicuspid aortic valve (BAV) has been well established. Different genetic, haemodynamic and cardiovascular risk factors have been implicated in the development and progression of AA. However, to date, definite conclusions cannot be drawn regarding the exact molecular, cellular and haemodynamic mechanisms causing ...
Degen Achim - - 2013
Arteriogenesis as a way to restore blood flow after arterial occlusion has been under investigation for the treatment of coronary artery disease (CAD) for decades. Therapeutic approaches so far have included delivery of cytokines and growth factors as well as mechanical stimulation such as external counterpulsation. As knowledge on the ...
Gorissen B M C - - 2013
In this study, we present a cat with a common 1-cm-long celiacomesenteric trunk. The arteria hepatica branched off first from the separate arteria celiaca and gave rise to the arteria gastrica dextra and arteria gastroduodenalis. The main stem of the arteria celiaca then split into the arteria gastrica sinistra and ...
Kim Kang-Il - - 2013
Postoperative venous thromboembolism is one of the most serious complications following total joint arthroplasty. Pharmacological and mechanical prophylaxis methods are used to reduce the risk of postoperative symptomatic deep vein thrombosis and pulmonary embolism. Use of pharmacological prophylaxis requires a fine balance between the efficacy of the drug in preventing ...
Hupkens Pieter - - 2013
In the last decade perforator flaps have been used increasingly for different indications. Many regions may serve as donor site. In this respect the posterior thigh region (PTR) has been neglected as a potential donor site for many years. The purpose of this study was to provide complete mapping of ...
Neumann Anneke - - 2013
Abstract The purpose of this review is to update the current clinical experience with tissue-engineered, nonseeded, allogenic matrices for pulmonary and aortic valve replacement. Allogenic heart valve replacement using an aortic root homograft was first performed 50 years ago on July 24, 1962, by Donald Ross at Guy's Hospital, London. ...
Dake M D - - 2013
OBJECTIVE/BACKGROUND: Classification systems for aortic dissection provide important guides to clinical decision-making, but the relevance of traditional categorization schemes is being questioned in an era when endovascular techniques are assuming a growing role in the management of this frequently complex and catastrophic entity. In recognition of the expanding range of interventional ...
Gemmete Joseph J - - 2013
This article briefly discusses the clinical features, natural history, and epidemiology of intracranial cerebral aneurysms, along with current diagnostic imaging techniques for their detection. The main focus is on the basic techniques used in endovascular coiling of ruptured and nonruptured saccular intracranial cerebral aneurysms. After a discussion of each technique, ...
Manfredini Roberto - - 2013
Although acute aortic rupture or dissection is relatively uncommon, it ranks in third position among necropsy-confirmed causes of out-of-hospital sudden death in the general population. Similar to other acute cardiovascular events (e.g., acute myocardial infarction, sudden death, stroke, and pulmonary embolism) there is a growing body of evidence regarding temporal ...
Zhang Yao-Jun - - 2013
Pulmonary arterial hypertension (PAH) is a group of diseases related to progressively increasing pulmonary vascular resistance, a high incidence of right ventricular failure and premature death. Only a limited number of pharmaceutical therapies have proven to be beneficial for PAH. These therapies improve symptoms, exercise capacity, and haemodynamics; however, the ...
Samarasekera Dinesh - - 2013
Renal artery aneurysms represent a rare clinical entity, and most are managed with endovascular techniques when treatment is indicated. Laparoscopic and robot-assisted repair of renal artery aneurysms has been described; however, few reports exist in the literature. We describe our experience with the surgical management of a 1.6-cm right-sided renal ...
Haraguchi K K Department of Neurosurgery, Nagoya University, Nagoya, - - 2013
Like other fields of medicine, robotics and mechanization might be introduced into endovascular coil embolization of intracranial aneurysms for effective treatment. We have already reported that coil insertion force could be smaller and more stable when the coil delivery wire is driven mechanically at a constant speed. Another background is ...
Lanzer Peter - - 2013
Intracoronary stents have markedly improved the outcomes of catheter-based coronary interventions. Intracoronary stent implantation rates of over 90% during coronary angioplasty are common. Stent implantations are associated with a small but statistically significant number of adverse outcomes including restenosis, thrombosis, strut malapposition, incomplete strut endothelialization, and various types of stenting ...
Ichihashi Shigeo - - 2013
In this report we describe catheter-based bailout techniques for when the distal end of the ipsilateral leg of an Excluder endograft has remained undeployed due to a broken deployment string. We attempted to advance a percutaneous transluminal angioplasty (PTA) balloon into an undeployed leg via the brachial artery, but were ...
Norman Paul E PE School of Surgery, University of Western Australia, Fremantle, Australia. - - 2013
Aneurysmal arterial disease is a vascular degenerative condition that is distinct from atherosclerotic and other occlusive arterial diseases. There is regionalization of the predisposition to aneurysm formation within the vascular tree, and the pathological process varies with location. Infrarenal abdominal aortic aneurysm (AAA) is the most common manifestation of aneurysmal ...
Patel Rakesh P - - 2013
The chimney technique in endovascular aortic aneurysm repair (Ch-EVAR) involves placement of a stent or stent-graft parallel to the main aortic stent-graft to extend the proximal or distal sealing zone while maintaining side branch patency. Ch-EVAR can facilitate endovascular repair of juxtarenal and aortic arch pathology using available standard aortic ...
Aziz Abdulhameed - - 2013
Endovascular repair of abdominal aneurysms has become the dominant treatment modality for infrarenal aneurysms. Initial reports showed a constant number of open repairs although there was a shift toward complicated juxtra-renal aneurysms. In the past several years, more aggressive endoluminal approaches and the introduction of fenestrated grafts have appeared to ...
Ruddy Jean Marie JM Division of Cardiothoracic Surgery, Department of Surgery, Medical University of South Carolina, Charlston, SC, - - 2013
Thoracic aortic aneurysm (TAA) is a clinically silent and potentially fatal disease whose pathophysiology is poorly understood. Application of data derived from animal models and human tissue analysis of abdominal aortic aneurysms may prove misleading given current evidence of structural and biochemical aortic heterogeneity above and below the diaphragm. Genetic ...
Adam Matti - - 2013
Abdominal aortic aneurysms (AAA) are an important source of morbidity and mortality in the U.S. and worldwide. Treatment options are limited, with open surgery or endovascular repair remaining the only curative treatments. Classical cardiovascular medications have generally failed to prevent or significantly alter AAA formation or progression. Therefore, there is ...
Wang Zhijie - - 2013
Chronic hypoxia causes pulmonary vasoconstriction and vascular remodeling, which lead to hypoxic pulmonary hypertension (HPH). HPH is associated with living at high altitudes and is a complication of many lung diseases, including chronic obstructive pulmonary disease, cystic fibrosis, and obstructive sleep apnea. Pulmonary vascular changes that occur with HPH include ...
Matsuda Yoshikazu - - 2013
BACKGROUND: Carotid artery stenting (CAS) is generally performed via a transfemoral approach. A transbrachial approach is usually chosen as an alternative when CAS via a transfemoral approach is difficult. At our institutions, a transcervical approach is chosen when the previous two approach routes are not available. We reviewed CAS cases ...
Greer John J - - 2013
This review outlines research that has advanced our understanding of the pathogenesis and etiology of congenital diaphragmatic hernia (CDH). The majority of CDH cases involve incomplete formation of the posterolateral portion of the diaphragm, clinically referred to as a Bochdalek hernia. The hole in the diaphragm allows the abdominal viscera ...
Emmert Maximilian Y - - 2013
OBJECTIVES: While transcatheter aortic valve implantation (TAVI) has rapidly evolved for the treatment of aortic valve disease, the currently used bioprostheses are prone to continuous calcific degeneration. Thus, autologous, cell-based, living, tissue-engineered heart valves (TEHVs) with regeneration potential have been suggested to overcome these limitations. We investigate the technical feasibility ...
Kawazoe Hiroshi - - 2013
In recent years, while therapeutic outcome after percutaneous coronary intervention is improving due to the introduction of drug-eluting stent and device development, procedure-related complications including coronary perforation may ineluctably occur though at low-frequency, even if careful manipulations are performed under IVUS guidance. Meanwhile, coronary pseudoaneurysm subsequent to coronary perforation is ...
Minarchick Valerie C - - 2013
Cerium dioxide nanoparticles (CeO2 NPs) are an engineered nanomaterial (ENM) that possesses unique catalytic, oxidative, and reductive properties. Currently, CeO2 NPs are being used as a fuel catalyst but these properties are also utilized in the development of potential drug treatments for radiation and stroke protection. These uses of CeO2 ...
Higashimori Akihiro - - 2013
A 68-year-old male presented with claudication. His kidney function was impaired. Carbon dioxide angiography revealed the left external iliac artery was occluded. A retrograde approach was attempted from the left CFA. The wire was advanced into the subintimal and failed to re-enter the true lumen. An IVUS catheter was then ...
Sen Sayan - - 2013
Coronary artery hemodynamics are very different to that of the systemic arteries; unlike the systemic circulation, in the coronary circulation pressure is generated from both the proximal and distal end of the artery due to the effect of contraction and relaxation of the myocardium on the microvasculature. As a result, ...
Akhtar Nila J - - 2013
Endovascular repair of the aorta has traditionally been limited to the abdominal aorta and, more recently, the descending thoracic aorta. However, recently hybrid repairs (a combination of open surgical and endovascular repair) have made endovascular repair of the aortic arch possible. Hybrid repair of the aortic arch typically involves an ...
Schneider Peter A - - 2013
Endovascular reconstruction of the femoral and popliteal arteries is replacing femoral-popliteal bypass. This is made possible by subintimal recanalization to manage long chronic total occlusions. Re-entry into the true lumen is the most challenging step in this process. This article summarizes the techniques for re-entry into the true lumen in ...
Yang David C - - 2013
The benefits of percutaneous coronary intervention (PCI) can be offset by periprocedural complications such as acute vessel closure and stent thrombosis in the absence of adequate antiplatelet and antithrombotic therapy. Additionally, conditions occurring after 30 days post-PCI, such as in-stent restenosis or late stent thrombosis can occur. Excess antithrombotic therapy, ...
Cuff Robert - - 2013
Endovascular treatment of aneurysmal disease has become the predominant form of repair for all aneurysms. Some areas continue to pose specific challenges to stay within the general tenets of successful repair, mainly achieving adequate seal without sacrificing other arterial pathways. Following aortic aneurysm repair, the common iliac arteries can continue ...
Frederick John R - - 2013
Femoral and axillary cannulation for arterial inflow in acute type A aortic dissection are the most commonly used cannulation strategies in current practice. More recently, our group and others have successfully used a central cannulation technique with excellent results. Although this approach has been described, specific technical details have not ...
Harskamp Ralf E - - 2013
: To review our current understanding of the epidemiology and pathogenesis of vein graft failure (VGF), give an overview of current preventive and interventional measures, and explore strategies that may improve vein graft patency. : VGF and progression of native coronary artery disease limit the long-term efficacy of coronary artery ...
Nammas Wail - - 2013
Coronary optical coherence tomography (OCT) is a light-based imaging modality that emits light in the near-infrared range. Compared with intravascular ultrasound, OCT has an extraordinarily high resolution (nearly tenfold higher), with an axial resolution in the range of 12-15 µm and a lateral resolution of 20-40 µm. The main drawback of OCT ...
Bunker T D - - 2013
Despite the expansion of arthroscopic surgery of the shoulder, the open deltopectoral approach to the shoulder is still frequently used, for example in fracture fixation and shoulder replacement. However, it is sometimes accompanied by unexpected bleeding. The cephalic vein is the landmark for the deltopectoral interval, yet its intimate relationship ...
Verim Samet - - 2013
Systemic atherosclerosis is a condition which progresses with age, decreases quality of life, and life expectancy. Lower extremity peripheral arterial disease (PAD) is a common manifestation of systemic atherosclerosis in the elderly. These individuals have a 2 to 4 fold higher risk of coronary heart disease and stroke. In addition, ...
Saratzis Athanasios N - - 2013
Acute kidney injury (AKI) after any type of intervention negatively impacts mortality, length of hospitalization, and perhaps long-term survival. In the case of endovascular aneurysm repair (EVAR), the incidence of AKI ranges from 1% to 23% for elective and emergency procedures and is lower compared to open repair. The pathophysiology ...
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