Search Results
Results 201 - 250 of 1389
< 1 2 3 4 5 6 7 8 9 10 >
Bottio Tomaso - - 2012
The study aim was to compare the hydrodynamics of the Carpentier-Edwards Magna 21 (CEM) and St. Jude Medical Biocor-Epic-Supra 21 (SJME) valves at increasing stroke volume and pulse rate in two different aortic conduits, namely straight and with sinuses of Valsalva present. Both valve types were tested in the aortic ...
Scuteri Angelo - - 2012
Arterial aging, characterized by arterial stiffening that is clinically evaluable as aortic pulse wave velocity, is risky for CV events, disability, and loss of cognitive function. Today the only adopted strategy to decrease arterial aging/ arterial stiffness is represented by decreasing BP. Selective antihypertensive drug classes (calcium channel blockers, converting ...
Karabay Kanber Ocal - - 2012
Spontaneous left main coronary artery (LMCA) dissection is an unusual cause of myocardial ischemia and sudden death. It is defined as an intramural hematoma of the media of the vessel wall. A 56-year-old male who underwent a two-vessel bypass ten years previous presented with chest pain for two hours. His ...
Sahin Durmuş Yıldıray - - 2012
Percutaneous device closure of atrial septal defect (ASD) is an alternative treatment to surgery. The main advantages of the percutaneous approach include avoidance of surgery, short procedure time and hospital length, in addition to comparable rates of complications. However, percutaneous device closure is associated with infrequent early and late complications ...
Edelman J J B - - 2012
Coronary artery bypass grafting (CABG) remains the standard of care for multi-vessel coronary disease. However, the increased rate of peri-operative stroke reported after surgery compared to percutaneous coronary intervention (PCI) remains of concern. Anaortic, total-arterial, off-pump coronary artery bypass (OPCAB) grafting is a technique that offers the main advantages of ...
Nikas Dimitrios - - 2012
Proximal Protection Devices, either flow-reversal or flow-arrest demonstrate excellent results of acute- and short-term outcomes in patients undergoing carotid stenting. Intolerance rates of both devices varies from low (1.8%) to relatively significant one (up to 19.0%), according to the definition used in the studies. Interestingly, when accounting only the cases ...
Saad Wael E A - - 2012
Balloon-occluded retrograde transvenous obliteration (BRTO) is an established procedure for the management of bleeding gastric varices in Asia. Invariably, the sclerosant utilized in Asia is ethanolamine oleate and the inventory used (vascular sheaths, balloon-occlusion catheters, and microcatheters) is not available outside Asia. A total of 41 BRTO procedures were performed ...
Flaherty Matthew L ML Department of Neurology, University of Cincinnati Academic Health Center, Cincinnati, Ohio 45267-0525, USA. - - 2013
Population-based studies have estimated that about 15% of ischemic strokes are caused by large-vessel cerebrovascular disease. We determined the types of large-vessel atherosclerosis responsible for ischemic strokes in a population-based stroke study. Patients with first-ever or recurrent ischemic stroke in the Greater Cincinnati area were identified during 2005 at all ...
Tuzcu E Murat - - 2012
The first mechanical heart valve prosthesis designed by Dr Charles Hufnagel was implanted to the descending aorta of a 30 year old woman with severe aortic regurgitation in 1952(1). Eight years after the initial succesful prosthetic valve implantation, Dr Harken sutured a prosthetic valve (Starr Edwards Valve) to the aortic ...
Nakai Motoki - - 2012
PURPOSE: This study aimed to predict the persistence of endoleaks (ELs) using patterns and volumes evaluated by computed tomography during aortography (CTDA) performed immediately after endovascular abdominal aortic aneurysm repair (EVAR). MATERIALS AND METHODS: CTDA immediately after EVAR and at the 6-month follow-up CT were performed in 52 patients. ELs ...
Masden Derek L - - 2012
PURPOSE: To conduct a systematic review of literature evaluating efficacy of venous and arterial grafts for distal upper extremity bypass surgery. METHODS: A PubMed search using MeSH terms "veins/surgery" OR "arteries/surgery" AND "radial artery/surgery" OR "ulnar artery/surgery" yielded 794 studies. Manual review produced 42 studies based on inclusion criteria of ...
Yang Jian - - 2012
The aim of this review was to determine the safety and efficacy of endovascular chimney technique for aortic arch pathologies by performing a systematic and pooled analysis of the relevant literature. Electronic searches were performed in database Medline between 1994 and 2011 to identify studies on endovascular chimney technique for ...
Sharma Anil - - 2012
The presence of right heart thromboemboli complicating pulmonary thromboemboli carries with it an increased mortality rate compared to pulmonary thromboemboli alone, but little is known about the optimal management of this difficult clinical situation. We report a case of bilateral pulmonary thromboembolism with right heart thrombi treated successfully with thrombolysis ...
Kocak Burak - - 2012
Percutaneous angioplasty and stenting for the treatment of extracranial vertebral artery (VA) stenosis seems a safe, effective and useful technique for resolving symptoms and improving blood flow to the posterior circulation, with a low complication rate and good long-term results. In patients with severe tortuosity of the vessel, stent placement ...
Larrabide I - - 2012
BACKGROUND AND PURPOSE:Effects of blood flow modification by flow diverters are observed to lead often to aneurysm thrombosis and reverse remodeling. For this process, to further understand the potential roles of intra-aneurysmal blood pressure changes and aneurysm morphologies, 23 patients were studied by numeric simulation.MATERIALS AND METHODS:3D imaging of aneurysms ...
Ramani Karthik - - 2012
Nonmaturing or dysfunctional hemodialysis fistulas are often repaired with interposition grafts placed either within the fistula (fistula-to-fistula configuration), or connected to another vein (fistula-to-vein configuration). The goal of this study was to compare the survival and usefulness of the composite accesses thus created, which we call "graftulas," with upperarm grafts. ...
Kim Jeong Goo - - 2012
The generally accepted treatment for infected aortic aneurysms involves open surgical resection and debridement, with in situ or extra-anatomical bypass. Occasionally, endovascular management can be substituted for the standard operation dependent on the patient's condition. We report the case of an 81-year-old female with a ruptured infected aortic aneurysm and ...
Foin Nicolas - - 2013
Percutaneous coronary intervention of complex true bifurcation lesions often fails to ensure continuous stent coverage and strut apposition in both the side branch and main vessel. Struts left unopposed floating in the lumen disturb blood flow and are increasingly recognized as increasing the risk of stent thrombosis. In this study, ...
Meng Xiangbin - - 2012
OBJECTIVES: Internal mammary arteries graft failure in coronary artery bypass grafting (CABG) is mostly considered to be a result of competitive flow (CF) from the native coronary artery, which significantly limits future revascularization options. METHODS: With the left internal mammary artery (LIMA) anastomosed to the left anterior descending (LAD) coronary ...
Papakonstantinou Maritsa K - - 2012
BACKGROUND: Confirming the presence of arteries crossing the osteotendinous junctions (OTJs) of the rotator cuff may explain why rates of avascular necrosis (AVN) of the humeral head vary between three- and four-part proximal humeral fractures. It is hypothesized that the humeral head remains better vascularized in three-part fractures because one ...
Faure Elsa - - 2012
The management of traumatic injury of the common carotid artery has traditionally required a conventional surgical intervention, which is associated with a high mortality rate. Endovascular procedures might offer a less invasive alternative to treat these injuries, with a lower rate of mortality and morbidity. We report the case of ...
Casey Darren P - - 2012
Aging is associated with increased retrograde and oscillatory shear in peripheral conduit arteries of humans. Although the mechanisms responsible for these age-related changes are not completely understood, augmented downstream α-adrenergic tone likely plays a significant role in this phenomenon. Therefore, in protocol 1, brachial artery diameter and blood velocity were ...
Aypar Ebru - - 2012
Takayasu arteritis (TA) is a large vessel vasculitis that involves the aorta, its major branches and pulmonary arteries. Diagnosis of TA during childhood remains challenging due to the non-specific symptoms. We report a four-year-old girl presenting with fever, fatigue, weight loss, and elbow pain who was later diagnosed as childhood ...
Kunio Mie - - 2012
We have proposed a novel short-duration thermal angioplasty with uniform temperature distribution. Although the dilatation mechanism of our short-duration heating dilatation was reported in our previous study, the influences on smooth muscle cells (SMCs) are not sufficiently understood. We studied the influences on SMCs in terms of shape change and ...
Tan Jennifer - - 2012
Vascular catheter use for dialysis remains highly prevalent, however, it is frequently adversely affected by access recirculation (AR). We previously reported the utility of effective ionic dialysance (EID)/blood flow rate (Qb) ratio in identifying significant (>5%) AR in arteriovenous (AV) fistulas (Mohan et al ASAIO J 56:427-433, 2010). We present ...
Murphy John Conleth - - 2012
STEMI and unstable acute coronary syndromes are associated with widespread adrenergic activation which may increase radial artery (RA) spasm, requiring cross-over to the femoral artery (FA) during percutaneous coronary intervention (PCI). We assessed the incidence of failed trans-radial artery PCI in emergency cases compared with non-emergency cases. PCI procedures performed ...
El-Zammar Ziad M K - - 2012
Treatment of acute ischemic stroke (AIS) is an evolving field. New treatment options are still needed in order to achieve greater success rates for arterial recanalization. Intra-arterial therapy (lAT) is an option for AIS patients who are not good candidates for intravenous (i.v.) recombinant tissue plasminogen activator (rt-PA) or where ...
Siddiqui Zakaur R - - 2012
Ruptured aneurysm of a branch of ileocolic artery is a rare finding and is an unusual cause of haemoperitoneum. Rapid diagnosis, and surgical or endovascular intervention are necessary to avoid devastating consequences and high mortality rates following an emergency operation after rupture. Resection is a good choice for surgical intervention ...
Kim Byung Moon - - 2012
Axium™ coils were developed to improve the durability of coil-embolized cerebral aneurysms by increasing packing density. The purpose of this prospective multicenter registry was to evaluate the safety and durability of Axium™ coils. One hundred twenty-six patients with 135 aneurysms of ≤ 15 mm in size underwent coil embolization using ...
Shafqat K - - 2012
In this study, finger photoplethysmograph data obtained from twelve patients undergoing cardiothoracic surgery were analyzed in order to estimate the venous saturation utilizing the modulations created by the positive pressure ventilation in the AC Photoplethysmograph (PPG) signals. The PPG signals were analyzed in the time-domain using a conventional pulse oximetry ...
Cassidy Darby - - 2012
: Varicocele remains the most commonly identified correctable cause of male factor infertility. Surgical correction is the most commonly performed technique to treat varicoceles with a technical failure rate of less than 5%. An attractive alternative to surgery is the selective catheterization and embolization of the gonadal vein. This data ...
Singla R K - - 2012
The upper extremity arterial system shows a large number of variations attributed to the complex and multiple sites of their embryonic development. It is important to be aware of arterial variations in this region because upper extremity is a frequent site of injury. Moreover, brachial artery is of significance in ...
Lee Jae Il - - 2012
The intracranial stent functions primarily to prevent protrusion of coils into the parent vessel during the embolization of wide-necked cerebral aneurysms and might also reduce aneurysm recanalization rate. In spite of these advantages, little is known about the long-term interaction of the stent with the parent vessel wall. We present ...
Kavaliauskienė Zana - - 2012
The rate of endovascular interventions for iliac occlusive lesions is continuously growing. The evolution of the technology supporting these therapeutic measures improves the results of these interventions. We performed a review of the literature to report and appreciate short- and long-term results of endovascular stenting of iliac artery occlusive lesions. ...
Naiki Takeru - - 2012
Many people are sensitive to cold, resulting in poor blood circulation. There is evidence that hesperidin results in increased peripheral circulation and skin temperature. A transglycosylated hesperidin, α-glucosylhesperidin, is more bioabsorbable than hesperidin. In the present study, biomechanical studies were performed on the effects of long-term feeding of α-glucosylhesperidin on ...
Namazi Mohammad Hassan - - 2012
Iatrogenic left main artery (LM) dissection is a catastrophic complication of coronary angiography and angioplasty that requires prompt management using stenting. Although LM dissection can be prevented, it cannot always be avoided and has a reported incidence rate of 0.02%. In the present report, a case of iatrogenic LM dissection ...
Rajasekharan Chandrasekharan - - 2012
An 80-year-old woman presenting with a single episode of acute haemoptysis yielded a cup of fresh blood. She gave a history of acute onset breathlessness and retrosternal chest discomfort, breathlessness and chest discomfort (1&emsp14;day). She had no history of pulmonary tuberculosis or bleeding diathesis. She was diagnosed with hypertension 20&emsp14;years ...
Peñalver Josiah M - - 2012
Anomalous aortic origin of the coronary artery (AAOCA) from the opposite sinus of Valsalva with an interarterial course has received much attention due to its association with sudden death in otherwise healthy individuals. AAOCA is relatively common and may have significant public health implications. While our knowledge of its pathophysiology ...
Santo Augusto Hasiak - - 2012
Aortic aneurysm and dissection are important causes of death in older people. Ruptured aneurysms show catastrophic fatality rates reaching near 80%. Few population-based mortality studies have been published in the world and none in Brazil. The objective of the present study was to use multiple-cause-of-death methodology in the analysis of ...
Sevim Kamuran Zeynep KZ Sisli Etfal Research and Training Hospital Department of Plastic Surgery, - - 2012
Since the beginning of the 'microvascular era', the success rates of microvascular procedures have increased to more than 90% in most series. The main reason for failure, however, is the healing of microarterial anastomosis, which is dependent on the status of endothelial cells and affects the rate of arterial thrombosis. ...
Calvaruso Davide D Department of Cardiothoracic Surgery, Laval Hospital, 2725 Chemin Ste-Foy, Quebec City PQ G1V 4G5, - - 2012
Axillary artery cannulation is indicated mainly during surgery involving the aortic root and the aortic arch when the pathology precludes a standard cannulation of the ascending aorta. Axillary cannulation provides an antegrade systemic flow, allows easy initiation of antegrade cerebral perfusion during circulatory arrest and reduces the rate of retrograde ...
Hori Tomohide T Division of Hepato-Biliary-Pancreatic and Transplant Surgery, Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan (Tomohide Hori, Shintaro Yagi, Taku Iida, Kenji Uryuhara, Fumitaka Oike, Shinji - - 2012
Challenges with small-for-size grafts are a critical issue in the liver transplantation field, and a reliable and reproducible animal model is required. We performed 50 orthotopic liver transplantations in pigs with a 30% graft, and retrospectively investigated the learning curves. We modified our surgical procedures according to our experience. Here, ...
Huo Yunlong - - 2012
A fundamental physics-based derivation of intraspecific scaling laws of vascular trees has not been previously realized. Here, we provide such a theoretical derivation for the volume-diameter and flow-length scaling laws of intraspecific vascular trees. In conjunction with the minimum energy hypothesis, this formulation also results in diameter-length, flow-diameter and flow-volume ...
Montagnana Martina - - 2011
Non-thrombotic pulmonary embolism (NTPE) is commonly defined as the partial or total occlusion of the pulmonary circulation caused by a variety of non-thrombotic embolic agents. Although its prevalence is much lower than that of pulmonary thromboembolism, this life-threatening pathology is often underestimated due to the low specificity of signs and ...
Bhuvaneswaran J S - - 2011
This is a retrospective study documenting the use of tenecteplase in 41 cases of suspected or confirmed pulmonary embolism receiving in-hospital tenecteplase as per weight-adjusted dosing in addition to standard heparin and oral anticoagulant therapy. The presenting symptoms of dyspnoea, chest pain, hemoptysis and syncope were found in 40 (97.56%), ...
Ng B J H - - 2011
Background/Aims: Clinical pathways to guide the investigation of suspected pulmonary embolism have been increasingly adopted by emergency departments worldwide. This study evaluated the compliance with a clinical pathway that combines risk assessment (Wells score) with d-dimer, ventilation-perfusion scanning or computed tomographic pulmonary angiography (CTPA). The aims of this study were ...
Aviram G - - 2011
Background: Early identification by computed tomography pulmonary angiography (CTPA) of patients with acute pulmonary embolism (PE) who have signs associated with a high embolic burden would be highly desirable. Objectives: To investigate whether an increased obstruction of the pulmonary vasculature is associated with reduced left atrial (LA) and increased right atrial (RA) ...
Makis Alexandros - - 2011
Diamond-Blackfan anemia (DBA) is a rare, congenital, pure red blood cell aplasia owing to gene defects affecting the function of ribosomal proteins, essential for erythroid maturation. Iron overload is a serious complication of chronic transfusions, which may lead to cardiac toxicity and endothelial damage. We report a case of pulmonary ...
Cırpan Teksin T Department of Gynecology and Obstetrics, Faculty of Medicine, Ege University, İzmir, - - 2011
Placenta percreta is one of the life-threatening conditions in modern obstetrics. The rising caesarean section rate means rising placenta percreta rate. Treatment strategies range from a caesarean hysterectomy to leaving the placenta in situ with or without internal iliac artery ligation/uterine artery embolisation and/or methotrexate therapy. We describe a case ...
- - 2010
To the Editor: In their review article, Agnelli and Becattini (July 15 issue)(1) discuss many important topics in acute pulmonary embolism. We would like to highlight the importance of the use of pulmonary magnetic resonance imaging (MRI) in the diagnosis of this condition, since substantial technical developments have been introduced ...
< 1 2 3 4 5 6 7 8 9 10 >