Cellulose acetate beads activate the complement system but inactivate the anaphylatoxins generated.

abstract：:Patient survival from our hemodialysis (HD) center over the past 11 years was analyzed. Four hundred four patients, 212 female and 192 male, were treated by chronic intermittent HD. Patients were offered standard acetate-cellulosic membranes of 1.0-1.3 m2. During this period 181 patients died. One hundred three patien...

journal_title：Artificial organs

authors： Polenakovik M,Sikole A,Stojcev N,Spasovski G,Amitov V,Nikolov V,Masin G,Klinkmann H

更新日期：1999-01-01 00:00:00

abstract：:This study deals with the design of a controller for cycling induced by functional electrical stimulation. The controller will be exploitable in the rehabilitation of hemiparetic patients who need to recover motor symmetry. It uses the pulse width as the control variable in the stimulation of the two legs in order to ...

journal_title：Artificial organs

authors： Ambrosini E,Ferrante S,Schauer T,Ferrigno G,Molteni F,Pedrocchi A

更新日期：2010-08-01 00:00:00

abstract：:The products of complement activation, including C3a, C4a, C5a, and their des Arg derivatives, have been used by many investigators as indicators of blood or foreign surface bioincompatibility, e.g., during hemodialysis. One problem encountered is that after extracorporeal circulation over some dialysis membranes very...

journal_title：Artificial organs

authors： Spencer PC,Schmidt B,Gurland HJ

更新日期：1986-02-01 00:00:00

abstract：:The Fas molecule, also designated APO-1/CD95, belongs to the tumor necrosis factor (TNF) receptor family. It is a widely expressed membrane-anchored protein that induces apoptosis by Fas/Fas ligand (Fas-L) mediation. It was reported that Fas-mediated apoptosis plays an important role in regulation of the immune system...

journal_title：Artificial organs

authors： Kawahito K,Misawa Y,Fuse K

更新日期：2000-08-01 00:00:00

abstract：:Although current continuous-flow total artificial hearts (CFTAHs) are much smaller than previous models, venous kinking may still occur after device implantation, especially in smaller animals. By inserting a self-expanding stent at the site of venous narrowing in a sheep model implanted with a CFTAH, we were able to ...

journal_title：Artificial organs

authors： Tuzun E,Parnis S,Rios J,Winkler JA,Cohn WE

更新日期：2011-07-01 00:00:00

abstract：:This article reports preliminary results of pilot studies of a new implantable two channel drop foot stimulator. The stimulator consists of an externally worn transmitter inductively coupled to an implanted receiver unit located in the lower leg, lateral and distal to the knee. The receiver is connected to electrodes ...

journal_title：Artificial organs

authors： Kenney L,Bultstra G,Buschman R,Taylor P,Mann G,Hermens H,Holsheimer J,Nene A,Tenniglo M,van der Aa H,Hobby J

更新日期：2002-03-01 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：:Features of the human spinal cord motor control are described using two spinal cord injury models: (i) the spinal cord completely separated from brain motor structures by accidental injury; (ii) the spinal cord receiving reduced and altered supraspinal input due to an incomplete lesion. Systematic studies using surfac...

journal_title：Artificial organs

authors： Dimitrijevic MR,Persy I,Forstner C,Kern H,Dimitrijevic MM

更新日期：2005-03-01 00:00:00

abstract：:Hypotension is an uncommon complication of procedures involving extracorporeal circulation, including plasmapheresis. From November 1993 to March 1999, we treated 139 patients who underwent a total of 1,137 sessions of double filtration plasmapheresis (DFP). Hypotension was defined as a systolic blood pressure (BP) < ...

journal_title：Artificial organs

authors： Yeh JH,Chiu HC

更新日期：2000-09-01 00:00:00

abstract：:Bicarbonate balance is usually calculated from the Henderson-Hasselbalch equation under the assumption that pK is constant. To evaluate the pK variability and its effects on bicarbonate computed with autoanalyzers in dialysis patients, we studied 44 patients on maintenance hemodialysis. The pH, PCO2, total CO2, and pK...

journal_title：Artificial organs

authors： Santoro A,Ferrari G,Spongano M,Cavalli F,Zucchelli P

更新日期：1987-12-01 00:00:00

abstract：:Although the debate still continues over the effectiveness of pulsatile versus nonpulsatile perfusion, it has been clearly proven that there are several significant physiological benefits of pulsatile perfusion during cardiopulmonary bypass (CPB) compared to nonpulsatile perfusion. However, the components of the extra...

journal_title：Artificial organs

authors： Undar A,Lodge AJ,Daggett CW,Runge TM,Ungerleider RM,Calhoon JH

更新日期：1998-08-01 00:00:00

abstract：:The aim of this study was to evaluate the safety and performance of the Arrow CorAide left ventricular assist system (LVAS) (Arrow International, Reading, PA, USA), a continuous-flow left ventricular assist device, as bridge to transplantation or recovery as well as destination therapy in patients with New York Heart ...

journal_title：Artificial organs

authors： Saeed D,Arusoglu L,Gazzoli F,Hetzer R,Morshius M,Alloni A,Viganò M,Koerfer R,Golding LA,El Banayosy A

更新日期：2013-02-01 00:00:00

abstract：:The objective of this study is to compare the myocardium protective effect of Bretschneider's histidine-tryptophan-ketoglutarate (HTK) solution versus Modified St. Thomas' (STH) solution in pediatric cardiac surgery of Tetralogy of Fallot (TOF). Seventy-seven pediatric patients of TOF who received the total surgical r...

journal_title：Artificial organs

authors： Wang ZH,An Y,Du MC,Qin TJ,Liu YB,Xu HZ,Yang LQ

更新日期：2017-05-01 00:00:00

abstract：:The development of a ventricular assist device is depicted. The seven subprograms that make up the project are described briefly. Results obtained during the clinical assay showed that the new design of the input cannula working as a false auricle provides better efficiency, as well as a certain level of autoregulatio...

journal_title：Artificial organs

authors： del Cañizo JF,Antoranz JC,Desco MM,Alvarez-Valdivielso JM,Fernandez-Caleya D,López M,Garcia-Barreno P,Duarte J

更新日期：1994-07-01 00:00:00

abstract：:The effectiveness of the blood substitute neo red cells (NRC) on hemorrhagic shock was evaluated in dogs. Shock was induced by bloodletting, and NRC was infused immediately until the dogs recovered from shock; the process was repeated 3 times (mild shock), or NRC was infused after shock was maintained for 30 min, and ...

journal_title：Artificial organs

authors： Usuba A,Osuka F,Kimura T,Sato R,Fujita Y,Yamashita M,Hoshino C

更新日期：1998-02-01 00:00:00

abstract：:This paper discussed issues of ethical assessment and moral concern associated with organ replacement and physical enhancement: research, allocation, organ donation, artificial organs, xenografts, biomaterials, and neuromaterials. While emphasizing the medical and moral benefits over associated risks, it calls for a b...

journal_title：Artificial organs

authors： Kielstein R,Sass HM

更新日期：1995-05-01 00:00:00

abstract：:We compared in vitro rates of hemolysis for a recently developed centrifugal pump with a conventional roller pump (10-10-00; Stöckert, Munich, Germany). Flow rates of 0.3 L/min and 1 L/min and a pressure of 200 mm Hg were chosen to simulate conditions during neonatal extracorporeal membrane oxygenation (ECMO). There w...

journal_title：Artificial organs

authors： Moon YS,Ohtsubo S,Gomez MR,Moon JK,Nose Y

更新日期：1996-05-01 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：: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：:The effect of blood hematocrit (HCT) on a noninvasive flow estimation algorithm was examined in a centrifugal implantable rotary blood pump (iRBP) used for ventricular assistance. An average flow estimator, based on three parameters, input electrical power, pump speed, and HCT, was developed. Data were collected in a ...

journal_title：Artificial organs

authors： Malagutti N,Karantonis DM,Cloherty SL,Ayre PJ,Mason DG,Salamonsen RF,Lovell NH

更新日期：2007-01-01 00:00:00

abstract：:Tissue engineering can improve the former limitations of artificial organs. This article reports the long-term clinical results of grafts constructed with fragmented autologous adipose tissue. We did a retrospective analysis of a series of 53 patients with lower leg ischemia that received 69 fragmented adipose tissue ...

journal_title：Artificial organs

authors： Karube N,Soma T,Noishiki Y,Yamazaki I,Kosuge T,Ichikawa Y,Takanashi Y

更新日期：2001-03-01 00:00:00

abstract：:The existence of acquired von Willebrand syndrome (AVWS) in patients with continuous flow left ventricular assist devices (LVADs) is well documented and has been verified by numerous investigators. AVWS has not been observed to occur in pulsatile devices such as the SynCardia total artificial heart (TAH), the HeartMat...

journal_title：Artificial organs

authors： Rosenberg G,Siedlecki CA,Jhun CS,Weiss WJ,Manning K,Deutsch S,Pierce W

更新日期：2018-12-01 00:00:00

abstract：:Dual chamber (DC) peritoneal dialysis (PD) dialysates contain fewer glucose degradation products (GDPs), so potentially reducing advanced glycosylation end products (AGEs), which have been reported to increase inflammation and cardiovascular risk. We wished to determine whether use of DC dialysates resulted in demonst...

journal_title：Artificial organs

authors： Vareesangthip K,Vongsanim S,Fan S,Davenport A

更新日期：2020-07-09 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

authors： Di Molfetta A,Zielinski K,Ferrari G,Kozarski M,Okrzeja P,Iacobelli R,Filippelli S,Perri G,Darowski M,Massetti M,Jarvik R,Amodeo A

更新日期：2019-01-01 00:00:00

abstract：:The effect of age on the calcification of biomaterials was studied by the subcutaneous implantation of poly(hydroxyethyl methacrylate) hydrogel in rats. The hydrogel sheets were implanted in rats 6, 12, 24, and 52 weeks (1 year) of age. The retrieved implants were compared and the percentage weight increase by mineral...

journal_title：Artificial organs

authors： Imai Y

更新日期：1985-08-01 00:00:00

abstract：:Plasma levels of granulocyte elastase in complex with alpha 1-proteinase inhibitor (E-alpha 1-PI) increased during hemodialysis from 110 +/- 10 to 506 +/- 66 micrograms/L using dialyzers made of polyamide, from 95 +/- 2.2 to 211 +/- 54 micrograms/ml with hemophane and from 114 +/- 10 to 203 +/- 25 using dialyzers made...

journal_title：Artificial organs

authors： Haag-Weber M,Schollmeyer P,Hörl WH

更新日期：1989-04-01 00:00:00

abstract：:Thrombosis and thromboembolism are the life-threatening clinical complications for patients supported or treated with prosthetic cardiovascular devices. The high mechanical shear stress within these devices is believed to be the major contributing factor to cause platelet activation (PA) and function alteration, leadi...

journal_title：Artificial organs

authors： Ding J,Chen Z,Niu S,Zhang J,Mondal NK,Griffith BP,Wu ZJ

更新日期：2015-07-01 00:00:00

abstract：:A new intravascular pumping oxygenator (IVPO) was developed for intravascular gas exchange and circulatory assistance in critically ill patients with respiratory and circulatory failure. The IVPO utilizes new silicone hollow fibers (diameter, 1 mm; membrane width, 50 microns) and consists of two driving tubes for the ...

journal_title：Artificial organs

authors： Sueda T,Fukunaga S,Morita S,Sueshiro M,Hirai S,Okada K,Orihashi K,Matsuura Y

更新日期：1997-01-01 00:00:00

abstract：:Aortic wall thinness was one of the most characteristic changes observed in experimental animals under prolonged continuous flow left heart bypass. The goal of this study was to determine the roles of smooth muscle cells in the vascular remodeling process in cases demonstrating aortic wall thinness under prolonged con...

journal_title：Artificial organs

authors： Mizuno T,Nishinaka T,Ohnishi H,Tatsumi E,Tsukiya T,Oshikawa M,Shioya K,Takewa Y,Homma A,Takano H,Kitamura S,Taenaka Y

更新日期：2003-10-01 00:00:00

abstract：:To expand the usage of the centrifugal pump (CP) in open heart surgery, we performed two studies. In the first, we evaluated pulsatile flow in the CP. In vitro pump performance of the Terumo Capiox pump (TCP) and the Sarns Delphin pump (SDP) and increase of free hemoglobin (mg/dl) after driving 6 h were investigated u...

journal_title：Artificial organs

authors： Nishida H,Koyanagi H,Endo M,Suzuki S,Oshiyama H,Nojiri C,Fukasawa H,Akutsu T

更新日期：1994-09-01 00:00:00