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Reis Miranda D D Intensive Care, Erasmus Medical Centre, Rotterdam, The Netherlands - - - 2014
Background: To validate commonly used bedside right ventricular impedance parameters, which are used in determining heart-lung interactions during mechanical ventilation. Methods: Fifteen pigs were equally assigned to either an open or a closed pericardium group. In all animals, an inflatable vascular occluder and a flow probe were placed around the ...
Giesen Leonie A LA Department of Congenital Heart Disease and Department of Anaesthesia, Bristol Heart Institute and Bristol Royal Hospital for Children, Bristol, United - - 2014
Background: Children with pulmonary hypertension routinely undergo pulmonary vascular resistance studies to assess the disease severity and vasodilator responsiveness. It is vital that results are accurate and reliable and are not influenced by the choice of anaesthetic agent. However, there are anecdotal data to suggest that propofol and inhalational agents ...
Kudumula Vikram V East Midlands Congenital Heart Centre, Glenfield Hospital, Groby road, Leicester, UnitedKingdom, LE3 - - 2014
Objectives To evaluate the performance of the Bard Valeo stent in pulmonary artery stenoses. Background The premounted Valeo stent requires only 6-7 French access and can be post-dilated to 20mm on bench testing. Although it appears ideal for implantation in pulmonary artery stenoses in children, it has been unclear whether ...
Conte Giulio G Cardiovascular Division, UZ Brussel-VUB, Laarbeeklaan 101, 1090 Brussels (Belgium). - - 2014
A 76-year-old man with history of coronary artery bypass graft surgery was referred to our department for cryoballoon ablation of symptomatic drug-resistant paroxysmal atrial fibrillation. Thick septum can complicate such procedures; we describe a useful maneuver to circumvent this problem.
Zhou Zhichao Z Erasmus University Medical Center - - 2014
Nitric oxide (NO)-induced coronary vasodilation is mediated through production of cyclic guanosine monophosphate (cGMP), and through inhibition of the endothelin-1 (ET) system. We previously demonstrated that phosphodiesterase-5 (PDE5)-mediated cGMP breakdown and ET each exert a vasoconstrictor influence on coronary resistance vessels. However, little is known about the integrated control of ...
Williams Mitchel T MT From the Department of Neurology, Children's Hospital of Michigan, Wayne State University, - - 2014
An 8-year-old girl in septic shock due to necrotizing methicillin-resistant Staphylococcus aureus (MRSA) pneumonia developed signs of end-organ damage, new right hemiplegia, and left gaze preference. Susceptibility-weighted MRI demonstrated extensive multifocal petechial hemorrhage preferentially at the gray-white matter interface due to septic microemboli (figure). Mechanisms of hemorrhage include small-vessel occlusion leading ...
Verlohren Stefan S Department of Obstetrics, Charite University Medicine Berlin, Germany; Fetal Medicine Unit, St. Georges Hospital NHS Healthcare Trust, London, United - - 2014
Uterine artery Doppler is a widely available screening tool for preeclampsia. However, the predictive accuracy for late-onset preeclampsia is low. We aimed to investigate the relationship of uterine artery Doppler and birthweight in women with early, intermediate and late preeclampsia as compared to women with uneventful pregnancy outcome. In a ...
Gottsäter M M Department of Clinical Sciences, Skåne University Hospital, Lund University, Malmö, - - 2014
Arterial stiffness is influenced by advancing age and vascular disease and is an independent risk factor for cardiovascular events and death. Using ultrasound measurements, arterial stiffness in a specific arterial segment can be assessed. The aim of this observational study was to explore the prospective and cross-sectional associations between arterial ...
Rieg Annette D AD Institute of Pharmacology and Toxicology, Medical Faculty of Rhenish-Westphalian Technical University Aachen, Aachen, Germany ; Department of Anesthesiology, Medical Faculty of Rhenish-Westphalian Technical University Aachen, Aachen, - - 2014
The phosphodiesterase-III inhibitor milrinone improves ventricular contractility, relaxes pulmonary arteries and reduces right ventricular afterload. Thus, it is used to treat heart failure and pulmonary hypertension (PH). However, its action on pulmonary veins (PVs) is not defined, although particularly PH due to left heart disease primarily affects the pulmonary venous ...
El Amrani M M Department of Nephrology and Dialysis, First Medical and Surgical Center, Agadir, - - 2014
Diagnosis of chronic inflammatory syndrome is often a challenge. In dialysis patients, this condition leads to resistance to recombinant human erythropoietin (rHuEPO). We here report a case of a 72-year-old male undergoing chronic hemodialysis and developed rHuEPO resistance without any obvious etiology. Investigations showed a partially thromosed aneurysm of the ...
Okamoto Yuki - - 2013
We encountered a surgical case of middle aortic syndrome (MAS) in a 56-year-old man who had resistant hypertension. Computed tomography showed severe stenosis of the abdominal aorta from below the superior mesenteric artery to above the inferior mesenteric artery. Although bilateral renal artery stenosis was confirmed, renal function was within ...
Akkus Nuri Ilker - - 2013
Saphenous vein graft (SVG) anastomotic lesions can have significant fibromuscular hyperplasia and may be resistant to balloon angioplasty alone. Stents have been used successfully to treat these lesions. There are no reports of immediate stent recoil following such treatment in the literature. We describe immediate and persistent stent recoil in ...
Bouwmeester James Christopher - - 2013
The conventional determination of pulmonary vascular resistance does not indicate which vascular segments contribute to the total resistance of the pulmonary circulation. Using measurements of pressure and flow, the reservoir-wave model can be used to partition total pulmonary vascular resistance into arterial, microcirculation, and venous components. Changes to these resistance ...
Agha Hala - - 2013
This study aimed to assess pulmonary functions before and after cardiac surgery in infants with congenital heart diseases and pulmonary overflow and to clarify which echocardiographic parameter correlates best with lung mechanics. Between 2008 and 2009, 30 infants with left-to-right shunt congenital acyanotic heart diseases who had indications for reparative ...
Matsushita Kensuke - - 2013
A 67-year-old woman was admitted with an acute coronary syndrome. Angiographic examination revealed diffuse severe stenosis of the left circumflex artery. A Pressure Wire Certus (St. Jude Medical, St. Paul, MN, USA) was passed to the second post-lateral (PL) branch. To prevent side-branch occlusion, a SION wire (Asahi Intecc Co., ...
Eleftheriou D - - 2013
Kawasaki disease (KD) is an acute self-limiting inflammatory disorder, associated with vasculitis, affecting predominantly medium-sized arteries, particularly the coronary arteries. In developed countries KD is the commonest cause of acquired heart disease in childhood. The aetiology of KD remains unknown, and it is currently believed that one or more as ...
Tabib Avisa - - 2013
This study aimed to evaluate the accuracy of Doppler echocardiography-derived indices in children with pulmonary hypertension secondary to congenital heart disease with left-to-right shunting. Doppler-derived indices including the acceleration time corrected (AcTc), deceleration time corrected, deceleration index, peak velocity, heart-rate-corrected inflection time (InTc), and a new index (the acceleration slope ...
Lind Lars - - 2013
Aim: It has previously been shown that flow-mediated vasodilation is a predictor of the progression of the intima-media thickness (IMT). In the present study, the degree of endothelium-dependent vasodilation in both resistance and conduit arteries was evaluated as a predictor of the IMT and plaque progression. Methods: In the population-based ...
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 - - 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 ...
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 ...
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