Magnesium homeostasis in patients undergoing continuous ambulatory peritoneal dialysis: role of the dialysate magnesium concentration.

abstract：:The objective of this study was to evaluate an alternative neonatal extracorporeal life support (ECLS) circuit with a RotaFlow centrifugal pump and Better-Bladder (BB) for hemodynamic performance and gaseous microemboli (GME) capture in a simulated neonatal ECLS system. The circuit consisted of a Maquet RotaFlow centr...

journal_title：Artificial organs

authors： Spencer SB,Wang S,Woitas K,Glass K,Kunselman AR,Ündar A

更新日期：2017-01-01 00:00:00

abstract：:Few instruments are currently available to test mitral valve function in an ex vivo state due to the technical difficulties involved. To investigate the native ex vivo mitral valve or prosthetic mitral valve with chordae, we developed a mitral valve adapter with an annulus suturing portion and 2 papillary muscle sutur...

journal_title：Artificial organs

authors： Katoh T,Ikeda N,Nishi K,Gohra H,Hamano K,Noda H,Fujimura Y,Esato K

更新日期：1999-10-01 00:00:00

abstract：:Malfunction of bileaflet mechanical heart valves in the mitral position could either be due to patient-prosthesis mismatch (PPM) or leaflet obstruction. The aim of this article is to investigate the validity of current echocardiographic criteria used for diagnosis of mitral prosthesis malfunction, namely maximum veloc...

journal_title：Artificial organs

authors： Evin M,Guivier-Curien C,Pibarot P,Kadem L,Rieu R

更新日期：2016-05-01 00:00:00

abstract：:The thrombogenicity of membrane oxygenators as well as clotting parameters profiles, using standard human clotting tests, was analyzed in calves and pigs during 6 h perfusion. Three calves and 3 pigs were connected to extracorporeal circulation with standard heparinization. Blood samples were taken for coagulation var...

journal_title：Artificial organs

authors： Mueller XM,Tevaearai HT,Jegger D,Tucker O,von Segesser LK

更新日期：2001-07-01 00:00:00

abstract：:The use of electrical stimulation for denervated muscles is still considered to be a controversial issue by many rehabilitation facilities and medical professionals because prior clinical experience has shown that treating denervated muscle tissue using exponential current over a long time period constitutes an imposs...

journal_title：Artificial organs

authors： Kern H,Hofer C,Strohhofer M,Mayr W,Richter W,Stöhr H

更新日期：1999-05-01 00:00:00

abstract：:Loss of photoreceptor cells is one of the major causes of blindness. Several groups are exploring the functional replacement of photoreceptors by a retinal prosthesis. The goal of this study was to simulate the vision levels that recipients of retinal prostheses with 4 x 4, 6 x 10, and 16 x 16 electrode arrays may exp...

journal_title：Artificial organs

authors： Hayes JS,Yin VT,Piyathaisere D,Weiland JD,Humayun MS,Dagnelie G

更新日期：2003-11-01 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：:The aim of this meta-analysis was to determine whether pulsatile perfusion during cardiac surgery has a lesser effect on renal dysfunction than nonpulsatile perfusion after cardiac surgery in randomized controlled trials. MEDLINE, EMBASE, and the Cochrane Central Register of Controlled Trials were used to identify ava...

journal_title：Artificial organs

authors： Nam MJ,Lim CH,Kim HJ,Kim YH,Choi H,Son HS,Lim HJ,Sun K

更新日期：2015-09-01 00:00:00

abstract：:The aims of this clinical study were to compare the maintenance doses for intravenous (i.v.) and subcutaneous (SC) administration of recombinant human erythropoietin (rhEPO) and to investigate whether there is any difference in the increase of the packed cellular volume (PCV) per week under i.v. and SC administration ...

journal_title：Artificial organs

authors： Schaller R,Sperschneider H,Thieler H,Dutz W,Hans S,Voigt D,Marx M,Engelmann J,Schöter KH,Scigalla P

更新日期：1994-08-01 00:00:00

abstract：:Porcine endogenous retrovirus (PERV) genomes are present in all pig cells. In this retrospective study, we assessed PERV infectivity in 28 patients treated with an extracorporeal bioartificial liver (HepatAssist system) that includes a membrane device containing porcine hepatocytes. All patients tested negative for PE...

journal_title：Artificial organs

authors： Pitkin Z,Mullon C

更新日期：1999-09-01 00:00:00

abstract：:The DexAide right ventricular assist device (RVAD) has been developed to provide an implantable RVAD option to surgeons. The aim of this study was to determine the optimal cannula design and optimal implantation location of the DexAide RVAD in preparation for its clinical use. Separately, a HeartMate XVE left ventricu...

journal_title：Artificial organs

authors： Ootaki Y,Ootaki C,Kamohara K,Akiyama M,Cingoz F,Kopcak MW Jr,Dessoffy R,Liu J,Massiello A,Horvath D,Chen JF,Zhou Q,Benefit S,Golding LA,Fukamachi K

更新日期：2007-08-01 00:00:00

abstract：:The aim of this work is to construct a computational fluid dynamics model capable of simulating the transient non-Newtonian process of apheresis. A Lagrangian-Eulerian model has been developed which tracks the blood particles within a two-dimensional flow configuration. Within the Eulerian method, the fluid mass and m...

journal_title：Artificial organs

authors： De Gruttola S,Boomsma K,Poulikakos D

更新日期：2005-12-01 00:00:00

abstract：:Growth factors and morphogens secreted by bone marrow mesenchymal stem cells (BMSCs) of bone marrow fluid may promote tooth regeneration. Accordingly, a tissue engineering approach was utilized to develop an economical strategy for obtaining the growth factors and morphogens from BMSCs. Unerupted second molar tooth bu...

journal_title：Artificial organs

authors： Kuo TF,Lin HC,Yang KC,Lin FH,Chen MH,Wu CC,Chang HH

更新日期：2011-02-01 00:00:00

abstract：:We have been developing some types of microcapsule suspensions with polyurethane membranes to evaluate the absolute hemolytic characteristics of the centrifugal blood pumps used in circulatory support devices such as artificial hearts. In order to facilitate/realize hemolysis testing on centrifugal blood pumps that ha...

journal_title：Artificial organs

authors： Maruyama O,Yamaguchi K,Nishida M,Onoguchi T,Tsutsui T,Jikuya T,Yamane T

更新日期：2008-02-01 00:00:00

abstract：:In patients undergoing exchange-transfusion with hemoglobin (Hb)-based oxygen (O₂) carriers (HBOC), native Hb coexists with newly transfused Hb. The two Hb types share the same arterial and venous PO₂, but their affinities for O₂ vary. A simple spreadsheet model is described aiming at evaluating the contribution of ea...

journal_title：Artificial organs

authors： Samaja M,Terraneo L

更新日期：2012-02-01 00:00:00

abstract：:It has been over 40 years since the initial clinical application of a cardiac pacemaker. Currently, approximately 300 per million patients in the United States and Europe are kept alive owing to the benefit of implantable pacemakers. Recently, the Japanese Cardiac Pacing Society and the Japanese Society of Artificial ...

journal_title：Artificial organs

authors： Kojima R

更新日期：1994-01-01 00:00:00

abstract：:Implantation of left ventricular assist devices typically requires cardiopulmonary bypass support, which is associated with postoperative complications. A novel suture-less inflow cannula, which can be implanted without bypass, uses mild myocardial compression to seal the interface, however, this may lead to necrosis ...

journal_title：Artificial organs

authors： Liao S,Theodoropoulos C,Blackwood KA,Woodruff MA,Gregory SD

更新日期：2018-05-01 00:00:00

abstract：:Effect of hemodialysis (HD) on some indices of immune response was studied in nine chronic uremics. Total lymphocyte, OKT4+, and OKT8+ cell numbers significantly decreased during the first 20 min of HD, and they were decreased till the third hour of the procedure, whereas the OKT4+/OKT8+ cell number ratio did not chan...

journal_title：Artificial organs

authors： Tchórzewski H,Luciak M,Trznadel K,Majewska E,Pokoca L

更新日期：1989-06-01 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：:In cardiac surgeries, it is frequently necessary to make the external blood circulation and oxygenation artificially. This procedure is called extracorporeal circulation (EC) or heart-lung bypass. During EC, one of the most important parameters, which demands continuous monitoring, is the blood flow. In many cases, th...

journal_title：Artificial organs

authors： Dantas RG,Costa ET

更新日期：2000-03-01 00:00:00

abstract：:An important present and emerging trend in biomaterials development is the synthesis of polymers which combine capabilities of biologic recognition ("biomimetic") with sensitivity to small environmental changes ("stimuli-responsive"). This short article highlights some of the many opportunities and challenges in this ...

journal_title：Artificial organs

authors： Hoffman AS

更新日期：1988-12-01 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：:Aseptic loosening is the major cause of failure of hip implants after total hip arthroplasty. Stress shielding of the femur is known to be the principal factor involved in the aseptic loosening of hip implants. Solid stems are found to have a greater rigidity; therefore, they transfer less load proximally, which resul...

journal_title：Artificial organs

authors： Sivarasu S,Beulah P,Mathew L

更新日期：2011-06-01 00:00:00

abstract：:The aim of the study is to measure the volume of homologous blood needed for one pediatric patient during his hospital stay. Over a 4-month period, all the patients operated upon with a blood prime or requiring blood transfusion during their hospital stay were included in this study.The cardiopulmonary bypass protocol...

journal_title：Artificial organs

authors： Durandy Y

更新日期：2010-11-01 00:00:00

abstract：:Our study investigated the reliability of appearance of rapid atrial swirl flow (RASF) by ultrasonography (US) in the right atrium (RA), which occurred as a result of rapid isotonic saline infusion (RISI) into the central venous catheter (CVC), in predicting catheter tip position. This prospective observational study ...

journal_title：Artificial organs

authors： Yesilbas O,Sevketoglu E,Kihtir HS,Talip Petmezci M,Akcay N,Kocoglu Barlas U,Palabiyik F

更新日期：2018-12-01 00:00:00

abstract：:Right ventricular failure is one of the most common complications encountered after left ventricular assist device implantation and heart transplantation. It has been reported to have an incidence up to 30%. It increases morbidity and short-term mortality. Impella RP is a small pump that can provide up to 4L/min of fl...

journal_title：Artificial organs

authors： Monteagudo-Vela M,Simon A,Panoulas V

更新日期：2020-05-01 00:00:00

abstract：:This article reviews the clinical, biological, radiological, and pathological procedures and their respective indications for the practical diagnosis of the following various histological patterns of renal osteodystrophy: osteitis fibrosa due to parathyroid hormone (PTH) hypersecretion: osteomalacia or rickets due to ...

journal_title：Artificial organs

authors： Fournier A,Oprisiu R,Hottelart C,Yverneau PH,Ghazali A,Atik A,Hedri H,Said S,Sechet A,Rasolombololona M,Abighanem O,Sarraj A,El Esper N,Moriniere P,Boudailliez B,Westeel PF,Achard JM,Pruna A

更新日期：1998-07-01 00:00:00

abstract：:The purpose of this study was the investigation of the usability and ergonomics of ventricular assist devices (VADs) in everyday usage. Patients with four different VAD types were observed. After implantation, instruction, and discharge from the hospital, the patients returned on a regular basis to the outpatient clin...

journal_title：Artificial organs

authors： Geidl L,Zrunek P,Deckert Z,Zimpfer D,Sandner S,Wieselthaler G,Schima H

更新日期：2009-09-01 00:00:00

abstract：:The multi-output adaptive controller of a left ventricular assist device (LVAD) was studied by computer simulation. The controller regulated two outputs--mean aortic pressure (mAoP) and mean atrial pressure (mLAP)--by regulating vacuum pressure (input). The autoregressive models were used to describe the circulatory s...

journal_title：Artificial organs

authors： Shimooka T,Mitamura Y,Yuhta T

更新日期：1991-04-01 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