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Results 651 - 700 of 1933
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Querques Giuseppe - - 2013
Retinal vascular occlusive disorders constitute one of the major causes of blindness and impaired vision. There is marked controversy on their pathogeneses, clinical features and particularly their management. Recently, advances in clinical research added antivascular endothelial growth factor, corticosteroids and sustained-release implants to our armamentarium in the management of retinal ...
Osbun Joshua W - - 2013
OBJECTIVE: Sphenoid wing region dural arteriovenous fistulas (DAVFs) are rare lesions that are typically fed by middle meningeal artery (MMA) feeders and that drain via the sphenoparietal sinus or middle cerebral vein. We describe a unique case of a medial sphenoid wing fistula draining exclusively via the basal vein of ...
Baughman Robert P - - 2013
The treatment options for pulmonary sarcoidosis have increased over the past ten years. As new treatments have been introduced, the best way to assess and compare treatments remains unknown. The goal of this review is to discuss the standard treatments for pulmonary sarcoidosis including glucocorticoids and cytotoxic agents such as ...
Chuckpaiwong Bavornrit - - 2013
Background:Forefoot and tarsometatarsal surgery may be performed on the first and second metatarsal through the intermetatarsal space. However, no study has identified the safety area of the proximal metatarsal bone to avoid vascular injury.Methods:One hundred and twenty-two uninjured embalmed feet of 31 female and 33 male cadavers aged 15 to ...
Morris Marvin E - - 2013
The ruptured hypogastric artery aneurysm (RHAA) is a rare clinical entity with an evolving and dynamic therapeutic armamentarium. The anatomical location and varied clinical presentation can pose a challenge for successful repair. Recently, endovascular and hybrid operative repairs have significantly improved the historically high-operative mortality rate. We present an illustrative ...
Kaump Geoffrey R - - 2013
Soon after the introduction of uterine artery embolization (UAE) as a treatment for fibroid tumors, questions arose regarding its potential impact on ovarian function. The onset of amenorrhea caused by ovarian failure after UAE was reported, and occlusion of ovarian arterial supply via uterine-arterial communications was suspected as the mechanism. ...
Takemoto Koichiro - - 2013
In-stent stenosis after stent-assisted coil embolization is a rare but well-known complication. A 32-year-old woman with an unruptured wide-necked left internal carotid artery (ICA) terminus aneurysm and an ipsilateral very small anterior choroidal artery aneurysm underwent stent-assisted coil embolization for the ICA terminus aneurysm. The 4-month follow-up angiography revealed diffuse ...
Johnson Andrew Kelly - - 2013
Sometimes, intracranial pathology in the distal vasculature cannot be accessed by standard endovascular techniques because of occlusion or insurmountable tortuosity of theinternal carotid artery (ICA). A trans-sphenoidal surgical approach can follow a similar trajectory to the course of the supraclinoid ICA. This study evaluates the feasibility of a trans-sphenoidal approach ...
Sakao S - - 2013
It is generally accepted that chronic thromboembolic pulmonary hypertension (CTEPH) results from pulmonary emboli originating from deep vein thrombosis. However, this consensus opinion has been challenged, and the concept that some aspects of CTEPH exacerbation might result from a small-vessel disease leading to secondary thrombosis has been suggested. In addition ...
Matsumoto Takashi - - 2013
Iatrogenic ventricular septal defect (VSD) is a rare complication following surgical aortic valve replacement (SAVR). In this report, we describe two cases of iatrogenic VSD following SAVR (both mechanical and bioprosthetic aortic valve), which were successfully closed with two different percutaneous techniques (retro-aortic and transseptal approach). The report discusses the ...
Sobocinski J - - 2013
While there are centers reporting encouraging outcomes after endovascular repair of thoracoabdominal aortic aneurysms, chronic dissections (a specific etiological subgroup of thoracoabdominal aneurysms) present an even greater technical and clinical challenge. There are particular technical issues associated with the management of the proximal sealing zone, the need to work in ...
Kasel Albert M - - 2013
The safety and efficacy of transcatheter aortic valve replacement procedures are directly related to proper imaging. This report revisits the existing noninvasive and invasive approaches that have concurrently evolved to meet the demands for optimal selection and guidance of patients undergoing transcatheter aortic valve replacement. The authors summarize the published ...
Geisbüsch P - - 2013
The aim of this article was to describe and discuss the currently available endovascular and open surgical techniques to preserve or occlude the hypogastric artery during aortoiliac aneurysm repair and thus support the process of decision-making in hypogastric artery revascularization.
Southerland Andrew M - - 2013
With ongoing advancements in noninvasive vascular imaging and high-throughput genomics, we have the opportunity to reclassify the cerebrocervical disorders by these shared associations, rather than their downstream events, and to better understand etiology, mechanism and preventive treatments going forward. The common nonatherosclerotic, large-vessel arteriopathies affecting the cerebrovasculature include intracranial aneurysms, ...
Firth Amy L - - 2013
Understanding the cellular and molecular mechanisms involved in the development and progression of pulmonary hypertension (PH) remains imperative if we are to successfully improve the quality of life and life span of patients with the disease. A whole plethora of mechanisms are associated with the development and progression of PH. ...
Dumser Thomas - - 2013
Coronary artery disease (CAD) is a common diagnosis at autopsies of military and civil aircrews. Identifying aviators with a high risk of an acute coronary syndrome is of aeromedical interest as it allows flight surgeons to employ prevention and intervention strategies to avoid death or a lifelong duties not including ...
Kölbel T - - 2013
Endovascular treatment of aortic dissection is still in its infancy and consists usually of implantation of thoracic tubular stent-grafts to cover the proximal entry tear and redirect flow into the true lumen. Large registries comparing endovascular treatment by thoracic endovascular aortic repair (TEVAR) with open surgery for aortic dissection of ...
Wiyono Stefanus A - - 2013
We present a case of unrecognized recurrent severe coronary spasm treated by percutaneous coronary interventions leading to catastrophic complications ultimately requiring emergency coronary artery bypass grafting and later, following occlusion of the grafts, recanalization of a totally occluded left coronary artery. Throughout the case history the recognition and management of ...
Lee Seung-Jun - - 2013
Arterial ageing is characterized by age associated degeneration and sclerosis of the media layer of the large arteries. However, besides ageing, clinical conditions, which enhance oxidative stress and inflammation act to accelerate the degree of arterial ageing. In this review, we summarized the pathophysiology and contributing factors that accelerate arterial ...
Bertog S C - - 2013
Carotid stenting has become a commonly used procedure for the treatment of carotid artery stenosis. Though equipment and techniques have improved tremendously over the recent 3 decades, complications do occur. It is important for carotid operators to be familiar with potential complications and adverse events. In this article complications and ...
Setacci C - - 2013
Execution of carotid artery stenting (CAS) requires not only excellent manual dexterity, and a high level of competence, but also in-depth knowledge of the carotid pathology, of the materials available on the market and of the different techniques to apply in given situations. Actually each individual moment of the procedure ...
Jung Ho Chul - - 2013
[This corrects the article on p. 893 in vol. 36, PMID: 23342327.].
O'Patterson B - - 2013
Thoracic endovascular repair (TEVR) has developed from endovascular treatment of infrarenal aortic aneurysms, and is now considered first-line treatment for a variety of thoracic aortic pathologies. In contrast to infrarenal repair, there are no large randomized controlled trials to underpin this change in practice, and most of the existing data ...
Wilson J S JS Department of Biomedical Engineering, Yale University, New Haven, CT 06520, - - 2013
Most computational models of abdominal aortic aneurysms address either the hemodynamics within the lesion or the mechanics of the wall. More recently, however, some models have appropriately begun to account for the evolving mechanics of the wall in response to the changing hemodynamic loads. Collectively, this large body of work ...
Tan Aaron - - 2013
Percutaneous coronary intervention (PCI) is used to treat blocked coronary arteries. Bare-metal stents (BMS) were first used in PCI but often necessitated repair procedures due to in-stent restenosis. Drug-eluting stents (DES) were developed to address this problem as the stent-incorporated anti-proliferative drugs prevented restenosis. However late-stent thrombosis arose with the ...
Islak Civan - - 2013
Durability of endovascular treatment of intracranial aneurysms has always been an issue and a very strong point of criticism. Although studies on long-term results have made it clear that endovascular treatment safe and effective they nonetheless showed retreatment after endovascular treatment is nearly 5-10 times more frequent than surgical clipping. ...
Millet John D - - 2013
ABSTRACT: The arteries of the upper extremities are increasingly utilized to gain access for angiography, percutaneous coronary interventions, endovascular therapy, and continuous hemodynamic monitoring. Hence, complications after upper-extremity arterial interventions are increasing in incidence. Similarly, the incidence of upper-extremity deep venous thrombosis is increasing as venous access is increasingly achieved ...
Généreux Philippe - - 2013
Paravalvular leak (PVL) is a frequent complication of transcatheter aortic valve replacement (TAVR) and is seen at a much higher rate after TAVR than after conventional surgical aortic valve replacement. Recent reports indicating that PVL may be correlated with increased late mortality have raised concerns. However, the heterogeneity of methods ...
Goncharova Elena A EA University of Pennsylvania Perelman School of Medicine, Translational Research Laboratories, Rm. 1214, 125 South 31st St., Philadelphia, PA 19104, USA. - - 2013
Mammalian target of rapamycin (mTOR) is a major regulator of cellular metabolism, proliferation, and survival that is implicated in various proliferative and metabolic diseases, including obesity, type 2 diabetes, hamartoma syndromes, and cancer. Emerging evidence suggests a potential critical role of mTOR signaling in pulmonary vascular remodeling. Remodeling of small ...
Chatterjee Saurav - - 2013
Subclavian artery stenosis has long been treated with great success with bypass surgery. Percutaneous intervention, often used in combination with stent placement, has come into vogue for the past few years as a safe and effective therapeutic modality. This study aimed to compare angioplasty alone with angioplasty followed by stent ...
Shakhnovich Irina - - 2013
Mycotic aneurysms involving infrapopliteal arteries are rare. Ruptured infrapopliteal aneurysms are particularly uncommon and represent a surgical or endovascular emergency. We describe a case of 51-year-old male who presented with a 12-cm ruptured aneurysm of the tibioperoneal trunk 5 years after an episode of bacterial endocarditis. Our surgical approach included ...
Qiao Aike - - 2013
Interventional therapy is commonly applied to the treatment of arterial aneurysm. Thermal ablation features rapid and minimal invasive treatment. A hypothesis of combining these two techniques was proposed to treat arterial aneurysm. An antenna is delivered with a catheter into the aneurysm sac and heated with microwave or RF, and ...
Ercan Suleyman - - 2013
Pulmonary artery aneurysm (PAA) is defined as pulmonary artery diameter of greater than 4 cm. PAA is not frequently encountered in clinical practice. There is a rare report in giant low-pressure PAA in terms of long-term follow-up. Herein, we sought to report a case of idiopathic PAA that was followed ...
Coleman Dawn M - - 2013
The treatment of occlusive vascular disease has evolved considerably over the past decades, with management strategies shifting from open surgical approaches toward less-invasive endovascular solutions or hybrid open and endovascular therapies. The treatment of aortoiliac occlusive disease has followed a similar pattern, with a more aggressive, minimally invasive approach being ...
Krapf Laura - - 2013
Although mitral stenosis is mostly due to rheumatic fever, other etiologies, such as degenerative, congenital, drug- or radiotherapy-induced mitral stenosis, are emerging and need to be recognized in order to decide the best therapeutic options. This pictorial review describes the echocardiographic features of these different anatomical types and the additional ...
Pereira Vitor Mendes - - 2013
Aneurysm vasculopathies represents a group of vascular disorders that share a common morphological diagnosis: a vascular dilation, the aneurysm. They can have a same etiology and a different clinical presentation or morphology, or have different etiology and very similar anatomical geometry. The biology of the aneurysm formation is a complex ...
Kahilogullari Gokmen - - 2013
PURPOSE: The arterial vascularization of the pineal gland (PG) remains a debatable subject. This study aims to provide detailed information about the arterial vascularization of the PG. METHODS: Thirty adult human brains were obtained from routine autopsies. Cerebral arteries were separately cannulated and injected with colored latex. The dissections were ...
Agarwal Nitin - - 2013
OBJECTIVE: Intracranial aneurysms are a public health issue with a potential for rupturing, causing significant morbidity/mortality. The prevalence of unruptured intracranial aneurysms, including those that are asymptomatic, varies largely, since it has been determined through autopsy studies as well as conventional angiography. However, computed tomography (CT) angiography, a less invasive ...
Fish Richard S - - 2013
BACKGROUND: Arterial calcification (AC) is a major health problem associated with extreme morbidity and a shortened survival. It is currently without any effective treatment. ATP and the purinergic system in general are now emerging as being important in the pathogenesis of AC and potentially provide a new focus for novel ...
Freund-Michel Véronique - - 2013
Pulmonary hypertension (PH) is characterized by a progressive elevation of pulmonary arterial pressure due to alterations of both pulmonary vascular structure and function. This disease is rare but life-threatening, leading to the development of right heart failure. Current PH treatments, designed to target altered pulmonary vascular reactivity, include vasodilating prostanoids, ...
Agarwal Nitin - - 2013
Gerard Percheron, M.D., a practicing neurologist and prolific researcher at the Institute Nationale de la Sante et de la Recherche Medicale, made significant and valuable contributions to medicine, in particular, to the vascular anatomy of the basal ganglia. His particular interest in the thalamus eventually led to the identification of ...
Dolensky Joseph R - - 2013
Tricuspid regurgitation (TR) is associated with increased mortality in patients undergoing mitral valve repair. In recent decades, TR has been addressed using annuloplasty concomitantly with mitral valve repair by some surgeons. However, repair efficacy and durability are often suboptimal. Increased understanding of tricuspid valve coaptation and the effects of pathological ...
Ballesteros-Pomar Marta - - 2013
Aneurysms of peripheral arteries are infrequent, with an incidence <1%. Dorsalis pedis artery (DPA) aneurysms are extremely rare, and most of them are pseudoaneurysms secondary to trauma or iatrogenic injuries. We report the first case of simultaneous (synchronous) bilateral DPA true aneurysms and how we repaired them. We review the literature ...
Islam A K M Monwarul - - 2013
The Chiari network is mobile, net-like structures occasionally seen in right atrium near the opening of inferior vena cava and coronary sinus. This is usually of no clinical significance and is often diagnosed incidentally. However, sometimes it may cause diagnostic confusion with right atrial pathologies, and may favour thromboembolism by ...
Rowley Anne H AH Department of Pediatrics, Northwestern University Feinberg School of Medicine, The Ann and Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA. - - 2013
Kawasaki disease (KD) is a systemic inflammatory illness of childhood that particularly affects the coronary arteries. It can lead to coronary artery aneurysms, myocardial infarction, and sudden death. Clinical and epidemiologic data support an infectious cause, and the etiology remains unknown, but recent data support infection with a 'new' virus. ...
Yang Jin-Xiu - - 2013
A growing body of evidence in animal models and clinical studies supports the concept that endothelial progenitor cell (EPC)-mediated therapy ameliorates pulmonary arterial hypertension (PAH), and thus may represent a novel approach to treat it. Conversely, several experimental findings suggest that EPCs may be involved in PAH pathogenesis and disease ...
Duprez Daniel A DA Cardiovascular Division, University of Minnesota, 420 Delaware St Se, MMC 508, Minneapolis, MN, USA. - - 2013
A parallel physiological pathway for elastic changes is hypothesized for declines in arterial elasticity and lung function. Endothelial dysfunction and inflammation could potentially decrease elasticity of both vasculature and lung tissue. We examined biomarkers, large arterial elasticity and small arterial elasticity (SAE), and forced vital capacity (FVC) in a period ...
Amerini Andrea Luigi - - 2013
Currently, there are no fully developed interventional approaches for the treatment of tricuspid regurgitation (TR). The aim of this study was to evaluate the feasibility of orthotopic interventional placement of a biological prosthetic valve in the tricuspid position by inserting, with a transvenous approach, a self-expandable valve-bearing stent into the ...
Wung Deanna - - 2013
The drugs tadalafil and sildenafil share the same mechanism. Although more research is necessary to solidify the recommendation of the routine use of tadalafil, human and dog data combined with pharmacokinetic data suggest that dogs may be safely treated for canine pulmonary arterial hypertension with tadalafil for the convenience of ...
Renato Millioni - - 2013
Cell-driven processes are now considered of relevance for the pathogenesis of aortic stenosis. In particular, during calcific valve degeneration, interstitial valve cells (VIC) resident in the leaflet can acquire an osteogenic/pro-calcific profile and actively contribute to matrix mineralization. The proteomic study described in this chapter is undertaken to investigate modifications ...
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