A computational study of the effects of inlet guide vanes on the performance of a centrifugal blood pump.

abstract：:The blood flow through the hemofilter device is the key point for ultrafiltrate production during continuous arteriovenous hemofiltration. It mainly depends on arteriovenous pressure gradient and vascular access, which is the major problem for arteriovenous hemofiltration in infants and small children. In infants, we ...

journal_title：Artificial organs

authors： Zobel G,Trop M,Beitzke A,Ring E

更新日期：1988-02-01 00:00:00

abstract：:Thirteen percent of 99 patients undergoing maintenance hemodialysis showed an increased predialysis peripheral blood eosinophil count (mean value of 828 cells/mm3, range 410-2,710). Patients with eosinophilia were predominantly male and evidenced more frequent elevation of total plasma IgE levels. Otherwise, no differ...

journal_title：Artificial organs

authors： Friedberg M,Joffe P,Nielsen B,Nielsen LP

更新日期：1987-04-01 00:00:00

abstract：:It has previously been shown that the mixture of bicarbonate and calcium in the solutions used for continuous renal replacement therapy led to crystallization and significant changes in calcium concentration and pH. The aim of this study was to investigate the impact of bicarbonate/calcium and lactate/calcium solution...

journal_title：Artificial organs

authors： Maccariello E,Dalboni MA,Draibe SA,Rocha E,Pavão dos Santos OF,Santos B,Cendoroglo M

更新日期：2004-06-01 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

authors： Sakuma I,Tadokoro H,Fukui Y,Dohi T

更新日期：1995-07-01 00:00:00

abstract：:We developed a novel miniaturized extracorporeal centrifugal pump "BIOFLOAT NCVC (Nipro Corporation Osaka, Japan) as a ventricular assist device (VAD) and performed a preclinical study that is part of the process for its approval as a bridge to decision by the pharmaceutical and medical device agencies. The aim of thi...

journal_title：Artificial organs

authors： Shimamura J,Mizuno T,Takewa Y,Tsukiya T,Naito N,Akiyama D,Iizuka K,Katagiri N,Nishimura T,Ono M,Tatsumi E

更新日期：2019-09-01 00:00:00

abstract：:Although extracorporeal membrane oxygenation (ECMO) improves oxygenation, pulmonary vascular resistance may be increased due to endothelial function impairment. Inhaled nitric oxide (iNO) is increasingly used for treatment of pulmonary hypertension after surgical repair of congenital heart defects, with or without ECM...

journal_title：Artificial organs

authors： Hermon M,Golej J,Burda G,Marx M,Trittenwein G,Pollak A

更新日期：1999-11-01 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：:Bubble blood oxygenators equipped with baffles of various types in the oxygenating column were studied. The rate of hemolysis, the volumetric coefficient for oxygen absorption into blood, and the fractional gas holdup were found to be affected mainly by the superficial gas velocity. When compared with the conventional...

journal_title：Artificial organs

authors： Ohshima N,Yoshido F

更新日期：1979-05-01 00:00:00

abstract：:The objective of this study was to compare the hemodynamic performances and gaseous microemboli (GME) handling ability of two pediatric oxygenators in a simulated pediatric cardiopulmonary bypass (CPB) model and the importance of adding an arterial filter in the circuit. The circuit consisted of a Braile Infant oxygen...

journal_title：Artificial organs

authors： Wang S,Caneo LF,Jatene MB,Jatene FB,Cestari IA,Kunselman AR,Ündar A

更新日期：2017-09-01 00:00:00

abstract：BACKGROUND:DALI (direct adsorption of lipids) is the first LDL-apheresis technique able to adsorb low-density lipoprotein (LDL) and lipoproteina) directly from whole blood. In the standard procedure, acid citrate dextrose (ACD-A) is used as anticoagulation and the adsorber is rinsed with a specially manufactured primin...

journal_title：Artificial organs

authors： Bosch T,Wendler T,Maschke H

更新日期：2003-06-01 00:00:00

abstract：:Many types of rotary blood pumps and pump control methods have recently been developed with the goal of clinical use. From experiments, we know that pump flow spontaneously increases during exercise without changing pump control parameters. The purpose of this study was to determine the hemodynamics associated with th...

journal_title：Artificial organs

authors： Akimoto T,Yamazaki K,Litwak P,Litwak KN,Tagusari O,Mori T,Antaki JF,Kameneva MV,Watach MJ,Umezu M,Tomioka J,Kormos RL,Koyanagi H,Griffith BP

更新日期：1999-08-01 00:00:00

abstract：:Centrifugal pumps have been used widely as the main pump in open heart surgery to reduce damage to blood elements and to reduce the activation of the coagulation system. The purpose of this study was the evaluation and comparison of the effects of two types of centrifugal pumps and of one type of roller pump on blood ...

journal_title：Artificial organs

authors： Yoshikai M,Hamada M,Takarabe K,Okazaki Y,Yoshika M

更新日期：1996-05-01 00:00:00

abstract：:As the aortic valve (AV) opens, the pump pressure head remains constant, which is reflected as a "notch/plateau" in pump pressure and flow signals. However, instantaneous flow estimation may be influenced by friction and is particularly difficult in axial pumps. Therefore, a new method to determine the duration of AV ...

journal_title：Artificial organs

authors： Hayward C,Lim CP,Schima H,Macdonald P,Moscato F,Muthiah K,Granegger M

更新日期：2015-08-01 00:00:00

abstract：:Our objective was to assess the effect of nitric oxide added to the sweep gas of the oxygenator during cardiopulmonary bypass (CPB) in infants on platelet count, platelet function, clinical outcomes, and safety. A randomized, double-blinded, placebo-controlled clinical trial in infants less than a year of age undergoi...

journal_title：Artificial organs

authors： Niebler RA,Chiang-Ching H,Daley K,Janecke R,Jobe SM,Mitchell ME,Varner C,Woods K,Scott JP

更新日期：2020-08-01 00:00:00

abstract：:The characteristic depressed hemodynamic state and gradually declining circulatory function in Fontan patients necessitates alternative postoperative management strategies incorporating a system level approach. In this study, the single-ventricle Fontan circulation is modeled by constructing a practical in vitro bench...

journal_title：Artificial organs

authors： Dur O,Lara M,Arnold D,Vandenberghe S,Keller BB,DeGroff C,Pekkan K

更新日期：2009-11-01 00:00:00

abstract：:A bypass flow rate estimation and control system (BECS) for an implantable centrifugal blood pump (ICBP) has been developed in our institute. The estimated flow rate (EF) of the ICBP was derived from the electric power consumption, the rotating speed of a motor, and the blood viscosity presumed by the hematocrit and b...

journal_title：Artificial organs

authors： Wakisaka Y,Okuzono Y,Taenaka Y,Chikanari K,Endo S,Masuzawa T,Takano H

更新日期：1998-06-01 00:00:00

abstract：:The BiVACOR is a novel rotary Biventricular Assist Device (BiVAD) undergoing development to treat global end-stage heart failure. The design includes left and right vanes positioned on a shared rotating hub to form a double-sided magnetically and hydrodynamically suspended centrifugal impeller. The performance of the ...

journal_title：Artificial organs

authors： Timms D,Fraser J,Hayne M,Dunning J,McNeil K,Pearcy M

更新日期：2008-10-01 00:00:00

abstract：:Therapeutic means to lower Lp(a) are limited. The most effective method to reduce plasma Lp(a) concentration significantly is therapeutic apheresis, namely, low-density lipoprotein (LDL) lipoprotein(a) (Lp(a)) apheresis. A novel technique based on reusable LDL adsorber called Lipocollect 200 (Medicollect, Rimbach, Ger...

journal_title：Artificial organs

authors： Stefanutti C,Di Giacomo S,Mazzarella B,Castelli A

更新日期：2009-12-01 00:00:00

abstract：:Albumin-coated Amberlite XAD-7 has been previously shown to be blood compatible in in vitro hemoperfusion experiments whith human blood. In this study, the preliminary results are reported on single hemoperfusions with albumin-coated XAD-7 resin in four patients with acute liver failure. The mean platelet count was 11...

journal_title：Artificial organs

authors： Hughes R,Ton HY,Langley P,Davies M,Hanid MA,Mellon P,Silk DB,Williams R

更新日期：1979-02-01 00:00:00

abstract：:Over the last 5 years, 12 patients received ventricular assist devices (VADs) while in postcardiotomy cardiogenic shock. There were 7 male and 5 female patients ranging in age from 22 to 73 years (average age, 54). Eight patients underwent surgery for valve replacements, 3 for coronary artery bypass graftings, and 1 f...

journal_title：Artificial organs

authors： Murakami T,Nakayama H,Irie H,Kino K,Hisamochi K,Koomoto T,Takagaki M,Sugawara E,Senoo Y,Teramoto S

更新日期：1993-07-01 00:00:00

abstract：:The addition of human serum albumin (HSA) to peritoneal dialysate increases the clearance of bilirubin in rats suffering from obstructive jaundice. The acceptor properties of the fluid can be enhanced by using HSA that does not contain standard stabilizing additives and has been purified by further adsorption on activ...

journal_title：Artificial organs

authors： Sarnatskaya VV,Nikolaev VG,Osipova LA,Ivanov AI,Maslenny VN,Ivanyuk AA,Yushko LA

更新日期：1993-10-01 00:00:00

abstract：:Extracorporeal human lymphatic organs are expected to be excellent tools in the study of human molecular and cellular bases of the immunologic balance and tissue harmony. A rational approach and process to design a device and a procedure to recreate the human lymph node environment in vitro is described with emphasis ...

journal_title：Artificial organs

authors： Giese C,Demmler CD,Ammer R,Hartmann S,Lubitz A,Miller L,Müller R,Marx U

更新日期：2006-10-01 00:00:00

abstract：:In this pilot study, we assessed the feasibility of using positron emission tomography (PET) imaging for in vivo measurement of skeletal muscle ventricle (SMV) tissue blood flow. In 4 dogs, with SMVs prepared from their latissimus dorsi muscle, we quantified SMV tissue blood flow by PET and related it to the tissue fl...

journal_title：Artificial organs

authors： Singh TP,Greer K,Muzik O,Hammond RL,Stephenson LW,Di Carli MF

更新日期：2001-04-01 00:00:00

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：:Stents are small, usually metallic tubes that are intended to prop open arteries blocked with atherosclerotic plaques. While stents have been used successfully in recent years, they still suffer from failure due to development of new tissue in stented segment (restenosis). Variations in the failure rates associated wi...

journal_title：Artificial organs

authors： Frank AO,Walsh PW,Moore JE Jr

更新日期：2002-07-01 00:00:00

abstract：:We were encouraged to investigate the reasons for large amounts of foam observed in bloodlines during hemodialysis (HD). Foam was visible in the venous air trap within the Artis Gambro dialysis device. Estimates of the extent of foam were graded (0-no foam, 10-extensive foam) by two persons that were blind to the type...

journal_title：Artificial organs

authors： Jonsson P,Lindmark L,Axelsson J,Karlsson L,Lundberg L,Stegmayr B

更新日期：2018-05-01 00:00:00

abstract：:We aim to evaluate clinical outcomes of emergent extracorporeal membrane oxygenation (ECMO) implantation in newborns with life-threatening meconium aspiration syndrome (MAS) in peripheral hospitals with Hub and Spoke (HandS) setting. We retrospectively reviewed all neonates presenting with MAS, with no other comorbidi...

journal_title：Artificial organs

authors： Fichera D,Zanella F,Fabozzo A,Doglioni N,Trevisanuto D,Lolli E,Vida V,Ceccherini E,Ebraico A,Stellin G,Padalino M

更新日期：2019-01-01 00:00:00

abstract：:Recently, the use of electrolyzed solutions has attracted considerable interest in Japan. This study investigates the efficiency of electrolyzed solutions as disinfecting agents (DA) in the reuse of dialyzers and compares their efficiency to that of other disinfectants currently in use. The following 3 methods were em...

journal_title：Artificial organs

authors： Tanaka N,Tanaka N,Fujisawa T,Daimon T,Fujiwara K,Yamamoto M,Abe T

更新日期：2000-12-01 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 neutralization of bacterial endotoxins (ET) is still an unsolved problem in therapeutic medicine. The efficacy of anti-endotoxin antibodies or receptor antagonists and other substances interfering with the endotoxin-induced pathomechanisms is dependent on an intact cellular degradation system of the host. However,...

journal_title：Artificial organs

authors： Mitzner S,Schneidewind J,Falkenhagen D,Loth F,Klinkmann H

更新日期：1993-09-01 00:00:00