Abstract:
:Hypoalbuminemia, a strong predictor of morbidity and mortality in hemodialysis patients, can be a consequence of a combination of malnutrition and inflammatory reactions. The purpose of this study was to analyze serum albumin as a marker of nutritional status in maintenance hemodialysis patients with no signs of inflammation. In a cross-sectional study, we selected 40 stable hemodialysis patients with normal levels of C-reactive protein (<0.8 mg/dL). The patients were classified as well nourished (65%) or malnourished (35%) according to the subjective global assessment. No significant differences were observed in serum albumin concentrations (immunoturbidimetric method) between well-nourished (4.3 +/- 0.3 g/dL) and malnourished (4.0 +/- 0.5 g/dL) patients, and the mean values were within the normal range in both groups. Albumin was inversely correlated with age (n=40; r=-0.32; P=0.02) and directly with energy intake (n=28; r=0.43; P=0.04). In this study, serum albumin did not discriminate well-nourished and malnourished hemodialysis patients without evidence of inflammation.
journal_name
Artif Organsjournal_title
Artificial organsauthors
Santos NS,Draibe SA,Kamimura MA,Canziani ME,Cendoroglo M,Júnior AG,Cuppari Ldoi
10.1046/j.1525-1594.2003.07273.xsubject
Has Abstractpub_date
2003-08-01 00:00:00pages
681-6issue
8eissn
0160-564Xissn
1525-1594pii
7273journal_volume
27pub_type
杂志文章abstract::For introduction of a left atrial (LA) cannula by the transseptal puncture technique, we examined the feasibility of using biplane transesophageal echocardiography (B-TEE). A transseptal puncture was performed on 15 patients (3 male; 12 female; mean age, 48.9 +/- 11.2 years) by B-TEE guide during percutaneous transven...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1992.tb00537.x
更新日期:1992-08-01 00:00:00
abstract::Many patients all over the world suffer from acute wounds caused by traumas or burns. In most crucial cases, skin regeneration cannot be promoted spontaneously, and skin grafts are applied as the main treatment. However, this therapy has some drawbacks which motivate researchers to develop wound dressings. In this stu...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.12682
更新日期:2016-08-01 00:00:00
abstract::Atherosclerosis is accelerated in dialysis patients, but less is known about asymptomatic atherosclerosis and major risk factors in patients with different stages of chronic kidney disease (CKD). We compared intima media thickness (IMT) and plaque occurrence in the carotid arteries in 104 nondiabetic patients (stages ...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2007.00522.x
更新日期:2008-03-01 00:00:00
abstract::Bone marrow mesenchymal stem cells (MSCs) have demonstrated their pluripotency to differentiate into different cell lineages and may be an alternative cell source for vascular tissue engineering. The objective of this study is to create small diameter vessels by seeding and culture of genetically modified MSCs onto a ...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2006.00322.x
更新日期:2006-12-01 00:00:00
abstract::The implementation of simultaneous mechanical cavopulmonary assistance having blood pumps located in both of the vena cavae is investigated as an approach to treating patients with an ailing Fontan physiology. Identical intravascular blood pumps are employed to model the hemodynamic support of a patient-specific Fonta...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.12039
更新日期:2013-06-01 00:00:00
abstract::In this study, we investigated the differences between pulsatile cardiopulmonary bypass (CPB) procedure and nonpulsatile CPB procedure in terms of their effects on hemolysis and deformability of red blood cells (RBCs) under various shear stress conditions. In order to research the effects on hemolysis and deformabilit...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2009.00974.x
更新日期:2010-04-01 00:00:00
abstract::A magnetically levitated (maglev) centrifugal blood pump (CBP), intended for use as a ventricular assist device, needs to be highly durable and reliable for long-term use without any mechanical failure. Furthermore, maglev CBPs should be small enough to be implanted into patients of various size and weight. We have de...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2006.00202.x
更新日期:2006-03-01 00:00:00
abstract::We report on the most recent data confirming the angiographic and pathological efficacy of LDL-apheresis for coronary atherosclerosis of a familial hypercholesterolemia (FH) patient using collected data of a large number of cases and especially of one autopsy case. Changes in coronary artery stenosis have been assesse...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1992.tb00289.x
更新日期:1992-04-01 00:00:00
abstract::Capillary membrane filters are devices commonly used for plasmapheresis and recirculating detoxification systems, including plasmaseparation units. Besides clinical trials and case reports, research on plasmafiltration techniques is carried out using in vitro systems. Notably, such hemoperfused in vitro systems requir...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1046/j.1525-1594.2003.07132.x
更新日期:2003-07-01 00:00:00
abstract::Atrial connections in a single-unit total artificial heart (TAH) may be difficult to make because of the rigidity of the device and the fixed position of the atrial inlets. We developed a technique to separate the natural atrial borders in an experimental implantation of a unitary TAH. In this technique, the interatri...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1995.tb02442.x
更新日期:1995-08-01 00:00:00
abstract::Our aim was to study the feasibility of implanting the Infant Jarvik 2015 in patients weighing less than 8 kg. The Infant Jarvik 2015 left ventricular assist device (LVAD) was tested in a hybrid simulator of the cardiovascular system reproducing specific patients' hemodynamics for different patient weights (2-7 kg). F...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.13302
更新日期:2019-01-01 00:00:00
abstract::Many patients who receive a prosthetic heart valve also have or acquire cardiac arrhythmias. However, most in vitro studies of prosthetic valves examine them under normal rhythms. In this study, a monoleaflet prosthetic heart valve was tested in vitro under conditions that simulated normal sinus rhythm, first degree a...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2005.29101.x
更新日期:2005-08-01 00:00:00
abstract::In clinical settings, no method has been established to examine the fatigue of a latissimus dorsi muscle (LDM) preconditioned for cardiomyoplasty. We examined the feasibility of measuring muscle stiffness (tactile stiffness) to evaluate muscle fatigue in situ using our tactile sensor. We stimulated canine LDM with bur...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1046/j.1525-1594.2000.06551.x
更新日期:2000-10-01 00:00:00
abstract::It has been speculated that testosterone stimulates erythropoiesis. We hypothesized that hemoglobin levels in hemodialysis (HD) patients are associated with serum testosterone concentrations. Testosterone, hemoglobin, and other biochemical parameters were measured in a representative sample of 98 chronic HD patients (...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.12218
更新日期:2014-07-01 00:00:00
abstract::The maximum ventricular elastance is a reliable index for assessing the cardiac function from changes in its pressure-volume relationship. The advantage of this index is that it can represent the contractility of either unassisted hearts or native hearts assisted with rotary blood pumps. However, there are situations ...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2009.00876.x
更新日期:2010-05-01 00:00:00
abstract::One of the most important factors that seems to be involved in total hip replacement is periprosthetic osteolysis. As it is well documented that several interleukins (ILs) are triggered in periprosthetic osteolysis, this article investigates the role of five ILs in primary and replacement total hip arthroplasty, under...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2009.00736.x
更新日期:2009-07-01 00:00:00
abstract::We assessed the relationship of certain clinical variables (including bradykinin [BK] release and dialysis membrane) to initial mean arterial pressure (MAP) reduction in 47 patients requiring continuous renal replacement therapy (CRRT) in an intensive care unit. The pretreatment MAP was 84 +/- 14 mm Hg for the group a...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1046/j.1525-1594.2001.06703.x
更新日期:2001-12-01 00:00:00
abstract::The design criteria of an extracorporeal circuit suitable for pulsatile flow are quite different and more entangled than for steady flow. The time and costs of the design process could be reduced if mutual influences between the pulsatile pump and other extracorporeal devices were considered without experimental trial...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2003.47197.x
更新日期:2004-02-01 00:00:00
abstract::Flow visualization is widely applied to evaluate rotary blood pumps; however, it is very difficult to visualize flow near the vanes of centrifugal blood pumps because the rotational speed of the impeller is usually several thousand rpm. In this study, a tracer method with a high speed video camera that can take more t...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1995.tb02399.x
更新日期:1995-07-01 00:00:00
abstract::The undulation pump total artificial heart (UPTAH) is a small implantable total artificial heart. As the UPTAH generates outflow and inflow at the same time, control of the UPTAH is very difficult. Therefore suitable control methods specifically for the UPTAH should be established. Various motor control, left-right fl...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1046/j.1525-1594.2003.07174.x
更新日期:2003-01-01 00:00:00
abstract::Methods to predict and control cardiac output (CO) accurately in total artificial heart (TAH) recipients have varied significantly in the last few decades. Early models exhibited minimal control mechanisms and involved fixed pumping parameters. Elaborate electromechanical systems that have recently evolved require int...
journal_title:Artificial organs
pub_type: 杂志文章
doi:
更新日期:1991-10-01 00:00:00
abstract::An increasing amount of evidence points to cerebral embolization during cardiopulmonary bypass (CPB) as the principal etiologic factor of neurologic complications. In this study, the capability of capturing and classification of gaseous emboli and pressure drop of three different membrane oxygenators (Sorin Apex, Teru...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2009.00955.x
更新日期:2009-11-01 00:00:00
abstract::In a typical open-heart surgery, the blood flow through the aortic cannula is a critical element of the cardiopulmonary bypass (CPB) procedure. Especially for the neonatal and pediatric CPB flow conditions, the need for small hydraulic diameter and large blood flow results confined turbulent jet flow regimes that exac...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.13462
更新日期:2019-10-01 00:00:00
abstract::This article presents computational studies on the effects of inlet guide vanes (IGVs) on the flow pattern and shear stress in a centrifugal blood pump. The effect of IGVs is to introduce a pre-swirl to fluid particles entering the impeller with the intention that the fluid particles will travel along the blade profil...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1046/j.1525-1594.2002.06917.x
更新日期:2002-06-01 00:00:00
abstract::Turbulent blood flow in medical devices contributes to blood trauma, yet the exact mechanism(s) have not been fully elucidated. Local turbulent stresses, viscous stresses, and the rate of dissipation of the turbulent kinetic energy have been proffered as hypotheses to describe and predict blood damage. In this work, s...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.12572
更新日期:2015-12-01 00:00:00
abstract::This paper describes a new miniaturized implantable bladder controller that is composed of 4 main parts: a volume monitoring device based on the tomography approach, a fully programmable miniaturized central processor and stimulator, a bidirectional data and power link, and an external controller. The proposed system ...
journal_title:Artificial organs
pub_type: 杂志文章
doi:
更新日期:1997-03-01 00:00:00
abstract::The determination of when to stop extracorporeal membrane oxygenation (ECMO) rests upon demonstration of the return of adequate cardiac function to support vital organs and permit subsequent recovery. In general, patients with myocardial stun will recover function within several days. Factors that limit recovery inclu...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1046/j.1525-1594.1999.06445.x
更新日期:1999-11-01 00:00:00
abstract::Widespread use of heart transplantation is limited by the scarcity of donor organs. Total artificial heart (TAH) development has been pursued to address this shortage, especially to treat patients who require biventricular support. We have developed a novel TAH that utilizes a continuously spinning rotor that shuttles...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.12959
更新日期:2017-10-01 00:00:00
abstract::In previous studies, we presented main strategies for suspending the rotor of a mixed-flow type (centrifugal and axial) ventricular assist device (VAD), originally presented by the Institute Dante Pazzanese of Cardiology (IDPC), Brazil. Magnetic suspension is achieved by the use of a magnetic bearing architecture in w...
journal_title:Artificial organs
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1525-1594.2011.01265.x
更新日期:2011-05-01 00:00:00
abstract::Mechanical circulatory support (MCS) devices continue to be hampered by thrombotic adverse events (AEs), a consequence of device-imparted supraphysiologic shear stresses, leading to shear-mediated platelet activation (SMPA). In advancing MCS devices from design to clinical use, in vitro circulatory loops containing th...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.13626
更新日期:2020-06-01 00:00:00