Search Results
Results 51 - 100 of 1038
1 2 3 4 5 6 7 8 9 10 >
Avery Joseph C JC a Department of Applied Physiology and Kinesiology, College of Health and Human Performance, University of Florida, Gainesville, FL 32611, - - 2014
Enhanced external counterpulsation (EECP) increases coronary artery perfusion and improves endothelium-dependent vasodilation in peripheral muscular conduit arteries. It is unknown whether vasodilatory capacity is improved in the peripheral resistance vasculature. Here we provide novel evidence from the first randomized, sham-controlled study that EECP increases peak limb blood flow and improves ...
Svicero Denis J - - 2013
Doppler ultrasound (DUS) examination provides quantitative and qualitative information concerning the blood flow in veins and arteries, enabling their morphological evaluation and the collection of hemodynamic data. Dogs and cats as well as humans may display neurological signs of brain hypoperfusion secondary to common carotid alterations. Hence, DUS examination might ...
Thabet Farah C - - 2013
We present the clinical course of an 11-year-old child with septic pulmonary embolism secondary to community acquired methicillin-resistant Staphylococcus aureus (MRSA) septic deep venous thrombosis. The aim is to emphasize the non-specific symptoms of septic pulmonary embolism in pediatrics, the frequent association with septic deep venous thrombosis and osteomyelitis, and ...
Decampli William M - - 2013
Indirect clinical evidence suggests that coronary blood flow (CBF) is altered in patients palliated with systemic-to-pulmonary artery shunts (SPSs). The addition of epinephrine may exert additional effects. A total of 11 newborn piglets underwent placement of a 3.5- to 4-mm graft between the innominate artery and the pulmonary artery. Doppler ...
Ghatak Tanmoy T Department of Critical Care Medicine, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, - - 2013
Spontaneous central vein thrombosis is a rare and potentially fatal condition in critical care setting. Activated protein C resistance due to homozygous factor V Leiden mutation is an exceptional cause of central venous thrombosis. We recently treated a healthy female student who presented with acute febrile illness, septic shock, and ...
Rosato E E Department of Clinical Medicine, Clinical Immunology Unit, Scleroderma Center, Sapienza University of Rome, - - 2013
Erectile dysfunction (ED) prevalence in male systemic sclerosis (SSc) is high and its pathogenesis is unclear. The aim of the study is to assess correlation between Doppler ultrasound indices of penis and kidneys or digital arteries in male systemic sclerosis. Fourteen men with systemic sclerosis were enrolled in this study. ...
Walker Ashley E - - 2013
Endothelial dysfunction occurs in conduit and cerebral resistance arteries with advancing age. Lifelong caloric restriction (CR) can prevent the onset of age-related dysfunction in many tissues, but its effects on cerebral resistance artery function, as compared with conduit artery function, have not been determined. We measured endothelium-dependent dilation (EDD) in ...
Jiritano Federica F Cardiac Surgery Unit, Magna Graecia University of Catanzaro, Italy. - - 2013
A 60-year-old man underwent aortic and mitral valve replacement with mechanical On-X prostheses, plus tricuspid annuloplasty ring and maze radiofrequency ablation. Two years later, he was admitted to hospital with severe orthopnea and hemolysis. Echocardiography revealed a blocked prosthetic mitral leaflet due to interference of the preserved subvalvular apparatus. Intraoperatively, ...
Tedford Ryan J - - 2013
Systemic sclerosis–associated pulmonary artery hypertension (SScPAH) has a worse prognosis compared with idiopathic pulmonary arterial hypertension (IPAH), with a median survival of 3 years after diagnosis often caused by right ventricular (RV) failure. We tested whether SScPAH or systemic sclerosis–related pulmonary hypertension with interstitial lung disease imposes a greater pulmonary ...
Araújo Alice V - - 2013
The present work aimed to investigate the cellular mechanisms involved on the vasorelaxation induced by the new nitric oxide donor Ru(terpy)(bdq)NO](3+) (Terpy) in isolated mesenteric resistance artery and to compare the vascular responses in isolated vessels from 2K and 2K-1C hypertensive rats. We have used this artery because it is ...
Batista P R - - 2013
The aim of this study was to describe Doppler ultrasonographic changes of uterine arteries during normal canine puerperium. Eight healthy, pure-bred bitches, were ultrasonographically assessed during the postpartum period on Days -3, 3, 10, 17, 24, 38, 52 and 80 (Day 0 defined as the day of parturition). Total horn ...
Padilla Jaume - - 2013
Dysfunction of the endothelium is proposed as the primary initiator of atherosclerotic peripheral artery disease, which occurs mainly in medium- to large-sized conduit arteries of the lower extremities (e.g., iliac, femoral, popliteal arteries). In this review article, we propose the novel concept that conduit artery endothelial cell phenotype is determined, ...
Cingoz Faruk F Department of Cardiovascular Surgery, Gulhane Military Medical Academy, Ankara, - - 2013
Early closure of a large ventricular septal defect before the onset of elevated pulmonary vascular resistance is important. Pulmonary hypertensive events might cause significant morbidity or mortality, even when closure is performed after infancy. Therefore, treatment of pulmonary hypertension after surgery may be the most important issue affecting the prognosis. ...
Guven Baris - - 2013
Limited data are available related to the effects of cardiovascular risk factors on abdominal arterial stiffness using carotid and brachial artery indices. Therefore, we aimed to determine arterial changes in obese children and investigate any relation with cardiovascular risk factors. Thirty-eight obese children (mean body mass index [BMI]: 28.35 ± ...
Stefanadis Christodoulos - - 2013
Renal artery denervation has recently emerged as a novel therapy for patients with resistant hypertension. Clinical results from renal sympathetic denervation support the safety and efficacy of this method over a period of 18 months. However, several limitations have been reported. Previous studies have shown that chemical denervation by vincristine ...
Otsuka Fumiyuki - - 2013
The internal mammary artery (IMA) grafts have been associated with long-term patency and improved survival as compared to saphenous vein grafts (SVGs). Early failure of IMA is attributed to poor surgical technique and less with thrombosis. Similarly, bypass surgery especially with the use of IMA has also been shown to ...
Sun Qi - - 2013
In this study, we performed computational fluid dynamic (CFD) simulations in a patient-specific three-dimensional extracardiac conduit Fontan connection. The pulmonary resistance was incorporated in the CFD model by connecting porous portions in the left and right pulmonary arteries. The pressure in the common atrium was set as boundary conditions at ...
Hill James - - 2013
The Fontan circulation was originally described as palliation for tricuspid atresia but was subsequently used for a wide variety of single-ventricle physiologies, with the common thread being inability to separate the ventricles for independent use in the systemic and pulmonary circulations. Fontan baffle fenestrations have been created since the late ...
Nishidate Izumi - - 2013
We propose a method to visualize the arterial inflow, the vascular resistance, and the venous capacitance in the skin tissue from red, green, blue (RGB) digital color images. The arterial inflow and the venous capacitance in the skin tissue are visualized based on an increase in the rate of change ...
Nishidate Izumi - - 2013
ABSTRACT. We propose a method to visualize the arterial inflow, the vascular resistance, and the venous capacitance in the skin tissue from red, green, blue (RGB) digital color images. The arterial inflow and the venous capacitance in the skin tissue are visualized based on an increase in the rate of ...
Nishidate Izumi I Tokyo University of Agriculture and Technology, Graduate School of Bio-application and Systems Engineering, Koganei, Tokyo 184-8588, Japan. - - 2013
We propose a method to visualize the arterial inflow, the vascular resistance, and the venous capacitance in the skin tissue from red, green, blue (RGB) digital color images. The arterial inflow and the venous capacitance in the skin tissue are visualized based on an increase in the rate of change ...
Ritter Jens C - - 2013
Endoleaks combined with increasing sac size following endovascular aneurysm repair require reintervention to prevent secondary aneurysm rupture. For standard infrarenal stent grafts, there are multiple treatment strategies available. However, in the presence of a fenestrated or branched stent graft, options are limited. We describe a novel challenging approach to treat ...
Cohen Jonathan - - 2013
In spite of the importance of correct interpretation of umbilical artery Doppler velocimetry, we have noticed that practice with regard to this is not homogeneous. Indeed, it is well known that Doppler parameters vary along the length of the umbilical cord and that these variations follow a gradient: resistances are ...
Aerden Dimitri - - 2013
Purpose: Subintimal crossing of total occlusions and acquiring reentry into the true lumen may be hazardous in highly calcified lesions, with or without the use of expensive reentry devices. Even when desirable, intraluminal crossing may not be feasible, because the guidewire tends to follow a path of least resistance between ...
Patel Amisha J - - 2013
We describe the case of a 60-year-old man with prior rotational atherectomy and drug-eluting stent to the left anterior descending artery (LAD) who presented with shortness of breath and chest pain 8 weeks after stent placement. Further workup revealed a large pericardial effusion with gram stain positive for methicillin-resistant Staphylococcus ...
Mallios Alexandros - - 2013
A 60-year-old male patient presented with a false aneurysm of the common iliac artery and methicillin-resistant Staphylococcus aureus septicemia complicating previously placed kissing covered stents of the aortic bifurcation. We removed the prosthetic material and repaired the aortic bifurcation with a composite saphenous vein panel graft. To our knowledge, this ...
De Santis Gianluca - - 2013
The aim of this study is to analyze the shape and flow changes of a patient-specific carotid artery after carotid artery stenting (CAS) performed using an open-cell (stent-O) or a closed-cell (stent-C) stent design. First, a stent reconstructed from micro-computed tomography (microCT) is virtually implanted in a left carotid artery ...
Gonzalez Manuel - - 2013
BACKGROUND: Leptin levels are elevated in obese humans. Several studies have shown an association between hyperleptinemia and development of atherosclerosis and cardiovascular disease (CVD), but the relationship between leptin and vascular function remains unclear. AIM: To evaluate associations between circulating plasma leptin and measures of vascular function in a large ...
Murai Tadashi - - 2013
Background: The relationship between the functional significance of epicardial coronary artery stenosis and microvascular resistance remains to be determined. Furthermore, little is known regarding the determinants of microvascular resistance in patients with intermediate coronary lesions. Methods and Results: Using a pressure-temperature sensor-tipped guidewire, thermodilution-derived index of microcirculatory resistance (IMR) was measured, along ...
Khanduri Sachin S Department of Radiology, Era's Lucknow Medical College and Hospital, ELMCH, Sarfarazganj Hardoi Road, Lucknow, 226003 UP - - 2013
Intrauterine growth restriction is associated with increased perinatal mortality and morbidity, possibly extending also in adult life, as compared to fetuses and newborns presenting characteristics of normal growth. The present study had been planned to measure the pulsatility index (PI) and resistive index of the middle cerebral artery with pulsatility ...
Feliciano M A R - - 2013
This study aimed to evaluate the characteristics of the brain and vascular indicesof the middle cerebral artery of canine foetuses. Twenty-five bitches were selected. Tissue development, echogenicity, echotexture and brain echobiometric data were studied, and the major structures were identified between the 5th and 8th gestational weeks. The area and ...
Yu Jung-Hee JH Division of Endocrinology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, - - 2013
We investigated the association of coronary artery calcium score (CACS) with body composition and insulin resistance in apparently healthy Korean adults. Nine hundred forty-five participants (mean age, 48.9 years; 628 men) in a medical check-up program were selected for analysis. Body composition was assessed by bioelectrical impedance analysis (BIA). Insulin ...
Kai Y Y Department of Neurosurgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan. - - 2013
A modified technique is required in patients with wide-necked aneurysms whose treatment by the single microcatheter technique is difficult. We developed a 6-Fr guiding catheter (Slim Guide(®)) that features a large lumen (0.072 inch) for performing the modified technique. To evaluate the usefulness of Slim Guide(®) we carried out experiments ...
Parrau Daniela - - 2013
We determined whether store operated channels (SOC) are involved in neonatal pulmonary artery function under conditions of acute and chronic hypoxia, using newborn sheep gestated and born either at high altitude (HA, 3,600m) or low altitude (LA, 520 m). Cardiopulmonary variables were recorded in vivo, with and without SOC blockade ...
Kasmeridis Charalampos - - 2013
Aspirin is still the mainstay of antiplatelet therapy in the secondary prevention of coronary artery disease. However certain patients do not benefit from the antithrombotic effects of aspirin. The phenomenon of so-called aspirin resistance can be considered from the clinical and laboratory perspective. A variety of methods have emerged for ...
Wideman R F - - 2013
Pulmonary arterial hypertension (PAH) syndrome in broilers (also known as ascites syndrome and pulmonary hypertension syndrome) can be attributed to imbalances between cardiac output and the anatomical capacity of the pulmonary vasculature to accommodate ever-increasing rates of blood flow, as well as to an inappropriately elevated tone (degree of constriction) ...
Iwasaki Satoru - - 2013
To elucidate the key points for safe performance of transradial angiography. Transradial angiography can be performed safely if attention is paid to the following points from after radial artery puncture to reaching the aortic arch: resistance during guide wire operation for sheath insertion after puncture; confirmation of the superficial brachial ...
Chang Huai-Ren - - 2013
Coronary artery fistulae that drain into the left ventricle are extremely rare, and even fewer cases of fistulae involving all three of the coronary arteries have so far been reported. We herein report a 64-year-old woman with a unique pattern of coronary artery-left ventricular fistulae that involved all three of ...
Tong Yan Qing - - 2013
A 48-year-old asian man was admitted to hospital for the consideration of hemodialysis (HD). An adequate site was decided on for the AVF after Doppler ultrasonography examination of radial artery and cephalic vein. The AVF was formed under local anaesthetic at his right wrist. When seen at the clinic appointment ...
Zainah Hadeel H Infectious Diseases Department, Henry Ford Hospital, 2799 W. Grand Boulevard, CFP-304, Detroit, MI 48202, - - 2013
Daptomycin has been used with success for the treatment of right-sided methicillin-resistant Staphylococcus aureus (MRSA) endocarditis. However, its efficacy has not been completely assessed for the treatment of MRSA endocarditis when it is associated with pulmonary septic emboli. Hereby, we present a case of MRSA mitral and tricuspid native valve ...
Spence Angela L AL School of Sport Science, Exercise & Health (M408), The University of Western Australia, 35 Stirling Highway, Crawley, Perth, WA 6009, Australia. - - 2013
Abstract  This randomized trial evaluated the impact of different exercise training modalities on the function and size of conduit arteries in healthy volunteers. Young (27 ± 5 years) healthy male subjects were randomized to undertake 6 months of either endurance training (ET; n = 10) or resistance training (RT; n ...
Shah Sachil - - 2012
Despite over 6 decades of progress in the development of pharmacological therapy for hypertension, severe drug-resistant hypertension remains a major problem. Endovascular radiofrequency ablation of the proximal renal arteries has been reported to decrease renal artery sympathetic activity and improve long-term hypertensive control. Existing "approved" catheters for this procedure are ...
Nour Sayed - - 2012
Background: Cardiac-assist devices for right ventricular failure remain controversial with poor results. This study evaluated a pulsatile cardiac-assist device in an acute right ventricular failure model vs. current therapies. Materials and methods: Pulmonary regurgitation was created in 12 piglets by valve avulsion and external transfixation of 2 pulmonary artery cusps ...
Skinner Gregory J - - 2012
The presence of an atrial septal defect in pulmonary hypertension has benefits and detractions. Even in idiopathic pulmonary arterial hypertension, a significant left-to-right shunt at atrial level may increase the pulmonary arterial pressure and exacerbate the disease. However, it is well recognised that the presence of an atrial communication may ...
Bergler Tobias - - 2012
Usage of cyclosporine A (CsA) after kidney transplantation may be associated with development of nephrotoxicity and vasculopathy, but the mechanisms by which CsA causes vascular dysfunction are still under scrutiny. We established a transplantation model and investigated the effect of CsA on vascular contractility with the aid of a pressurized ...
Poon Chuen Yeow - - 2013
Pulmonary arterial (PA) hypertension in preterm infant is an important consequence of chronic lung disease of prematurity (CLD) arising mainly due to impaired alveolar development and dysregulated angiogenesis of the pulmonary circulation. Although PA pressure and resistance in these children normalise by school age, their pulmonary vasculature remains hyper-reactive to ...
Fisher Gordon G Department of Nutrition Sciences, University of Alabama at Birmingham, 427 Webb Building, 1675 University Blvd, Birmingham, AL 35294-3360, USA. - - 2013
The purpose of this investigation was to examine the associations between circulating markers of inflammation and arterial elasticity in healthy older women. Participants were 50 women older than 60 years of age, body mass index 27 ± 4, and physically untrained. Large artery elasticity, small artery elasticity, systemic vascular resistance, ...
Waxman Aaron B - - 2012
The lungs are the only organ that receives the entire cardiac output with every stroke. The pulmonary circulation is normally a high-flow, low-resistance, low-pressure system that carries blood into the pulmonary microcirculation. In pulmonary artery hypertension (PAH)vascular remodeling contributes to a sustained elevation of pulmonary vascular resistance (PVR) and pulmonary ...
Saba Luca - - 2012
The purpose of this study was to evaluate the relationship between MDCT angiography-assessed carotid artery plaque volume and composition and the presence of ulceration. Seventy consecutive patients (46 men and 24 women; mean age, 63 years; age range, 42-81 years) were studied using MDCT and were retrospectively analyzed. Component types ...
Kono K - - 2012
Carotid duplex sonography is a useful method for evaluation of dural arteriovenous fistulas. The resistance index of the external carotid artery has been reported to correlate with the efficacy of treatment and recurrence or aggravation of dural arteriovenous fistulas. Herein, we describe a case of dural arteriovenous fistulas mainly supplied ...
1 2 3 4 5 6 7 8 9 10 >