Unsteady fluid dynamics of several mechanical prosthetic heart valves using a two component laser Doppler anemometer system.

abstract：:ABO incompatible allogeneic bone marrow transplants can be performed successfully to treat patients with leukemia or aplastic anemia. These transplants carry no great risk of rejection or graft-versus-host disease, however, some method must be used to avoid acute hemolysis at the time of infusion of ABO incompatible m...

journal_title：Artificial organs

authors： Bensinger WI

更新日期：1981-08-01 00:00:00

abstract：:Neurologic complications during neonatal extracorporeal life support (ECLS) are associated with significant morbidity and mortality. Gaseous microemboli (GME) in the ECLS circuit may be a possible cause. Advances in neonatal circuitry may improve hemodynamic performance and GME handling leading to reduction in patient...

journal_title：Artificial organs

authors： Glass K,Trivedi P,Wang S,Woitas K,Kunselman AR,Ündar A

更新日期：2017-04-01 00:00:00

abstract：:Tumor necrosis factor-alpha (TNF-alpha) release has been implicated in a sepsis-like syndrome following cardiopulmonary bypass (CPB). This also may be important in patients who have had a left ventricular assist device (LVAD) implanted. This report investigates the effect of reducing systemic blood flow on hemodynamic...

journal_title：Artificial organs

authors： Uozaki Y,Dihmis WC,Yamauchi H,Moczar M,Miyama M,Pasteau F,Tixier D,Bambang SL,Loisance DY

更新日期：2001-02-01 00:00:00

abstract：:The effects of pyridoxalated hemoglobin polyoxyethylene conjugate (PHP) and other hemoglobin-related substances on arterial blood pressure (ABP) and heart rate (HR) were examined. Infusion of PHP and other hemoglobin-related substances elevated ABP and increased HR. The degree of the increase in ABP and HR did not dif...

journal_title：Artificial organs

authors： Kida Y,Maeda M,Iwata S,Iwashita Y,Goto K,Nishi K

更新日期：1995-02-01 00:00:00

abstract：:Proper wound healing can be assessed by monitoring the wound surface area. Its reduction by 10 or 50% should be achieved after 1 or 4 weeks, respectively, from the start of the applied therapy. There are various methods of wound area measurement, which differ in terms of the cost of the devices and their accuracy. Thi...

journal_title：Artificial organs

authors： Foltynski P,Ladyzynski P,Wojcicki JM

更新日期：2014-04-01 00:00:00

abstract：:The objective of this study was to evaluate the hemodynamic performance and gaseous microemboli (GME) handling ability of a simulated neonatal extracorporeal life support (ECLS) circuit with an in-line continuous renal replacement therapy (CRRT) device. The circuit consisted of a Maquet RotaFlow centrifugal pump or HL...

journal_title：Artificial organs

authors： Shank KR,Profeta E,Wang S,O'Connor C,Kunselman AR,Woitas K,Myers JL,Ündar A

更新日期：2018-04-01 00:00:00

abstract：:The goal of this study was to determine whether porcine islets encapsulated in hollow fibers made of AN69 copolymer can correct hyperglycemia in diabetic mice and provide normal tolerance to a glucose challenge. In vitro perifusion of hollow fibers demonstrated the rapid kinetics of insulin release in response to gluc...

journal_title：Artificial organs

authors： Delaunay C,Darquy S,Honiger J,Capron F,Rouault C,Reach G

更新日期：1998-04-01 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

authors： da Silva I,Horikawa O,Cardoso JR,Camargo FA,Andrade AJ,Bock EG

更新日期：2011-05-01 00:00:00

abstract：:Central extracorporeal life support (ECLS) is an effective treatment method of cardiogenic shock patients with or without lung failure. However, complications like infection and bleeding are common. The classical implantation approach requires full sternotomy, mobilization of the heart, with the well-known risks of bl...

journal_title：Artificial organs

authors： Weymann A,Sabashnikov A,Patil NP,Mohite PN,Zych B,Garcia Saez D,Popov AF,Simon AR

更新日期：2015-02-01 00:00:00

abstract：:In a calf model, 3 standard and 3 heparin coated intraaortic balloons (IAB) were inserted and left deflated in the descending aorta during 20 min to simulate balloon rupture. At the end of the experiment, the IAB were examined, and 3 samples of each were collected for scanning electron microscopy (SEM) analysis. None ...

journal_title：Artificial organs

authors： Mueller XM,Tevaearai HT,Hayoz D,von Segesser LK

更新日期：1999-02-01 00:00:00

abstract：:The specific timing for discontinuing renal replacement therapy (RRT) in acute kidney injury (AKI) patients is debatable. The predictive abilities of variables at the time of discontinuation of RRT for the long-term prognoses of patients have not been explored. This study aimed to explore the prognostic factors upon d...

journal_title：Artificial organs

authors： Yang T,Sun S,Lin L,Han M,Liu Q,Zeng X,Zhao Y,Li Y,Su B,Huang S,Yang L

更新日期：2017-12-01 00:00:00

abstract：:Four methods of cleaning hollow-fiber artificial kidneys (HFAKs) for reuse were compared in a prospective study. Each cleaning method was randomly assigned and HFAKs were reused until volume loss was greater than or equal to 15 ml, unless discarded for other reasons. HFAKs cleaned with 0.3 M sodium hydroxide averaged ...

journal_title：Artificial organs

authors： Dennis MB Jr,Vizzo JE,Cole JJ,Westendorf DL,Ahmad S

更新日期：1986-12-01 00:00:00

abstract：:Renal Solutions Allient Sorbent Hemodialysis System utilizes a two-chambered pneumatic pump (Pulsar Blood Pump, Renal Solutions, Inc., Warrendale, PA, USA) to avoid limitations associated with peristaltic pumping systems. Single-needle access is enabled by counter-pulsing the two pump chambers, thereby obviating compl...

journal_title：Artificial organs

authors： Shu F,Parks R,Maholtz J,Ash S,Antaki JF

更新日期：2009-04-01 00:00:00

abstract：:Using urea and inulin as markers, we have developed a simple method to calculate intracellular and extracellular fluid volume in patients before and after hemofiltration therapy. During conventional hemofiltration using substitution fluid with a Na+ concentration of 140 mEq/L, a decrease in extracellular fluid volume ...

journal_title：Artificial organs

authors： Kimura G,Satani M,Kojima S,Kuroda K,Itoh K,Ikeda M

更新日期：1982-02-01 00:00:00

abstract：:Neurologic complications during on-pump cardiovascular surgery are often induced by mobilization of atherosclerotic plaques, which is directly related to enhanced wall shear stress. In the present study, we numerically evaluated the impact of dispersive aortic cannulas on aortic blood flow characteristics, with specia...

journal_title：Artificial organs

authors： Assmann A,Gül F,Benim AC,Joos F,Akhyari P,Lichtenberg A

更新日期：2015-03-01 00:00:00

abstract：:Hemodialysis vascular access (VA) stenosis remains a frequent complication. However, early detection is challenging and costly. The aim of this in vitro study was to assess a new detection method based on pulse pressure analysis at the hemodialysis needle. A silicon model of a radiocephalic arteriovenous fistula was b...

journal_title：Artificial organs

authors： Van Canneyt K,Planken RN,Eloot S,Segers P,Verdonck P

更新日期：2010-02-01 00:00:00

abstract：:The optimization of the monomer composition, using a polymerization kinetic study and the mechanical behavior study of the composites, was the principal objective of this work. The monomeric mixture analyzed is a part of the composite that has been in development at the University of Campinas, Brazil. Parameters such ...

journal_title：Artificial organs

authors： López Palacio RE,de Carvalho Zavaglia CA

更新日期：2003-05-01 00:00:00

abstract：:The aim of this study was to investigate whether the use of a medically approved biodegradable scaffold as a solid support system would enhance graft survival following transplantation into the omental pouch in a preclinical large animal model. Six beagle dogs underwent total pancreatectomy followed by islet autotrans...

journal_title：Artificial organs

authors： Kin T,O'Neil JJ,Pawlick R,Korbutt GS,Shapiro AM,Lakey JR

更新日期：2008-12-01 00:00:00

abstract：:Midsize molecule retention is related with renal-failure-associated mortality. Here, the authors describe a new dialysis modality, pulse push/pull hemodialysis (PPPHD), which increases convective clearance. Blood and dialysate are circulated by a pulsatile pump, but with pulsatile flow patterns that are 180 degrees ou...

journal_title：Artificial organs

authors： Lee K,Lee SR,Mun CH,Min BG

更新日期：2008-05-01 00:00:00

abstract：:Myristoyl gelatin (MG) retains its gel structure at temperatures above body temperature without any crosslinking. As a coating material, MG adheres well to polyester fibers, and the outermost layers of the sealant that are in contact with blood or surrounding tissue become hydrophilic. We produced MG-impregnated knitt...

journal_title：Artificial organs

authors： Sasajima T,Inaba M,Azuma N,Goh K,Koshiko S,Kubo Y,Miyamoto K,Tokita M,Komai T

更新日期：1997-04-01 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

authors： Pennati G,Fiore GB,Laganà K,Fumero R

更新日期：2004-02-01 00:00:00

abstract：:Robotic surgery for intracardiac pathologies in children is relatively uncommon. This study presents our initial experience with robotic-assisted cardiac surgery in children. We also present the feasibility and safety of robotic surgery in children. From May 2013 to June 2018, 30 children underwent totally endoscopic ...

journal_title：Artificial organs

authors： Onan B,Aydin U,Kadirogullari E,Onan IS,Sen O

更新日期：2019-04-01 00:00:00

abstract：:Adsorption therapy, which treats the autoimmune disease by the selective removal of pathogenic substances from the blood, is an active subject. In this therapy, bioactive molecules such as antigen, antibodies and protein A are usually used as affinity-ligands. The disadvantages of using these substances as affinity-li...

journal_title：Artificial organs

authors： Yamamoto Y,Sameshima T,Akaike T

更新日期：1990-10-01 00:00:00

abstract：:This article introduces a unique miniaturization process of a magnetically levitated axial flow blood pump from a functional prototype to a pump suitable for animal trials. Through COMSOL three-dimensional finite element analysis and experimental verification, the hybrid magnetic bearings of the pump have been miniatu...

journal_title：Artificial organs

authors： Cheng S,Olles MW,Olsen DB,Joyce LD,Day SW

更新日期：2010-10-01 00:00:00

abstract：:Left ventricular assist devices (LVADs) are increasingly being used as life-saving therapy in patients with end-stage heart failure. The changes in spirometry following LVAD implantation and subsequent unloading of the left ventricle and pulmonary circulation are unknown. In this study, we explored long-term changes i...

journal_title：Artificial organs

authors： Mohamedali B,Bhat G,Yost G,Tatooles A

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

authors： Sawan M,Arabi K,Provost B

更新日期：1997-03-01 00:00:00

abstract：:The use of extracorporeal membrane oxygenator instead of standard cardiopulmonary bypass during lung transplantation is debatable. Moreover, recently, the concept of prolonged postoperative extracorporeal membrane oxygenator (ECMO) support has been introduced in many transplant centers to prevent primary graft dysfunc...

journal_title：Artificial organs

authors： Dell'Amore A,Campisi A,Congiu S,Mazzarra S,Pastore S,Dolci G,Baiocchi M,Frascaroli G

更新日期：2020-06-01 00:00:00

abstract：:Tissue responses to various percutaneous materials with different surface properties and structures were investigated. Dense hydroxyapatite (HA), tricalcium phosphate (TCP), glassy carbon (GC), and 2 types of porous HA were used. Cutaneous and subcutaneous tissues were tightly attached to the surface of the penetratin...

journal_title：Artificial organs

authors： Shin Y,Akao M

更新日期：1997-09-01 00:00:00

abstract：:We previously demonstrated that tumor necrosis factor-alpha (TNF-alpha) increased following a reduction in systemic blood flow to 60% or less of the original cardiac output using a left ventricular assist device (LVAD). The aim of this study was to investigate the effect of reducing systemic blood flow on tissue oxyge...

journal_title：Artificial organs

authors： Uozaki Y,Dihmis WC,Yamauchi H,Moczar M,Miyama M,Pasteau F,Tixier D,Bambang SL,Loisance DY

更新日期：2001-01-01 00:00:00

abstract：:Tissue-cultured bovine aortic endothelial cells were subjected to flow in an in vitro circulatory loop designed to simulate the flow and pressure conditions in the aorta. The cells were cultured under stationary conditions on tubes of fibronectin-coated Silastic or of Dacron velour. The tubes were then added to the fl...

journal_title：Artificial organs

authors： Eskin SG,Navarro LT,O'Bannon W,DeBakey ME

更新日期：1983-02-01 00:00:00