A bedside micromethod for the determination of total carbon dioxide in biological fluids.

abstract：:This article describes two ongoing numerical studies of fluid-structure interaction in the cardiovascular system: an idealized pulsatile ventricular assist device (VAD), consisting of two fluid chambers separated by a flexible diaphragm; and blood flow and heart wall motion during passive filling of a canine heart. Si...

journal_title：Artificial organs

authors： Doyle MG,Vergniaud JB,Tavoularis S,Bourgault Y

更新日期：2008-11-01 00:00:00

abstract：:Fibroblast cell culture was performed to evaluate cell adhesion and cell morphology on novel hydrolyzable copolymers composed of poly(D,L-lactic acid) (PDLA) macromonomer, 2-methacryloyloxyethyl phosphorylcholine (MPC), and n-butyl methacrylate. The copolymers were used as cell culture materials for regulating the int...

journal_title：Artificial organs

authors： Watanabe J,Ishihara K

更新日期：2003-03-01 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：:Aortic arch repair in newborns and infants has traditionally been accomplished using a period of deep hypothermic circulatory arrest. To reduce neurologic and cardiac dysfunction related to circulatory arrest and myocardial ischemia during complex aortic arch surgery, an alternative and novel strategy for cerebro-myoc...

journal_title：Artificial organs

authors： Hoxha S,Abbasciano RG,Sandrini C,Rossetti L,Menon T,Barozzi L,Linardi D,Rungatscher A,Faggian G,Luciani GB

更新日期：2018-04-01 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

authors： Steinhorn DM

更新日期：1999-11-01 00:00:00

abstract：:The aim of this study is to compare the effect of a single diode laser application and agitation of EDTA with diode laser with different parameters at different time intervals on root fracture. Ninety mandibular incisors were instrumented except the negative control group. The specimens were divided randomly into 10 g...

journal_title：Artificial organs

authors： Karataş E,Arslan H,Topçuoğlu HS,Yılmaz CB,Yeter KY,Ayrancı LB

更新日期：2016-06-01 00:00:00

abstract：:Centrifugal pumps are generally employed as nonpulsatile blood flow pumps; however, these pumps can produce pulsatile flow by periodically alternating the impeller rotation speed. This study investigates blood trauma due to the effect of pulse frequency and various ranges of pump speed. The hemolysis tests were conduc...

journal_title：Artificial organs

authors： Tayama E,Niimi Y,Takami Y,Ohashi Y,Ohtsuka G,Glueck JA,Mueller J,Nosé Y

更新日期：1997-12-01 00:00:00

abstract：:Tissue engineering of cardiovascular structures represents a novel approach to improve clinical strategies in heart valve disease treatment. The aim of this study was to engineer decellularized atrioventricular heart valve neoscaffolds with an intact ultrastructure and to reseed them with umbilical cord-derived endoth...

journal_title：Artificial organs

authors： Weymann A,Radovits T,Schmack B,Li S,Korkmaz S,Soós P,Istók R,Veres G,Chaimow N,Karck M,Szabó G

更新日期：2014-07-01 00:00:00

abstract：:Extracorporeal membrane oxygenation (ECMO) has long been the sole means of mechanical support for pediatric patients with end-stage cardiac failure, but has a high waitlist mortality and a reported survival to hospital discharge of less than 50%. The purpose of this study was to compare waitlist mortality and survival...

journal_title：Artificial organs

authors： Jeewa A,Manlhiot C,McCrindle BW,Van Arsdell G,Humpl T,Dipchand AI

更新日期：2010-12-01 00:00:00

abstract：:For many years, it was thought that nonpulsatile perfusion produced physiological and circulatory abnormalities. Since 1977, Yukihiko Nosé and his colleagues have challenged this misconception. Toward that end, they did show that if a 20% higher blood flow uses more than that required for a pulsatile blood pump, then ...

journal_title：Artificial organs

authors： Nosé Y,Kawahito K,Nakazawa T

更新日期：1996-05-01 00:00:00

abstract：:Recent studies show that oxytocin has various effects on cellular behaviors. Oxytocin is reported to stimulate cardiomyogenesis of embryonic stem cells and endothelial cell proliferation. Mesenchymal stem cells (MSCs) are widely used for cardiac repair, and we elucidated the effect of oxytocin on umbilical cord derive...

journal_title：Artificial organs

authors： Kim YS,Kwon JS,Hong MH,Kim J,Song CH,Jeong MH,Cho JG,Park JC,Kang JC,Ahn Y

更新日期：2010-06-01 00:00:00

abstract：:Coil-type silicone membrane oxygenators can only be used with roller blood pumps due to the resistance from the high blood flow. Therefore, during extracorporeal membrane oxygenation (ECMO) treatment, the combination of a roller pump and an oxygenator with a high blood flow resistance will induce severe hemolysis, whi...

journal_title：Artificial organs

authors： Motomura T,Maeda T,Kawahito S,Matsui T,Ichikawa S,Ishitoya H,Kawamura M,Nishimura I,Shinohara T,Oestmann D,Glueck J,Kawaguchi Y,Sato K,Nosé Y

更新日期：2002-11-01 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：:Twelve patients, 8 male and 4 female, aged from 26 to 70 years were studied. They were on hemodialysis (HD) 4 h three times weekly with cuprophan hollow fiber dialyzers (Gambro 120M) and dialysate containing 35 mEq/L of acetate. The study compares two random HD sessions on each patient. Sixty minutes prior to one rand...

journal_title：Artificial organs

authors： Grekas D,Alivanis P,Karamouzis M,Pyrpasopoulos M,Tourkantonis A

更新日期：1989-10-01 00:00:00

abstract：:Pharmacologic agents and other non-protein-bound compounds smaller than 5,000 daltons have the potential to be removed by continuous arteriovenous hemofiltration (CAVH). A proposed method for estimating drug clearance by CAVH (ClCAVH) equates ultrafiltrate clearance to the product of the sieving coefficient and the av...

journal_title：Artificial organs

authors： Horton MW,Godley PJ,Moore ES,Fineg J,Gillespie WR

更新日期：1990-12-01 00:00:00

abstract：:In a multicenter study including 5 dialysis units, blood acetate changes during 4 h dialysis sessions in 141 patients treated with a 4 mM acetate-containing bicarbonate dialysate (ABD) were evaluated and compared to the values of 114 patients using an acetate-free bicarbonate dialysate (AFD). Acetate-free bicarbonate ...

journal_title：Artificial organs

authors： Fournier G,Potier J,Thébaud HE,Majdalani G,Ton-That H,Man NK

更新日期：1998-07-01 00:00:00

abstract：:Over a 4 year period, five of 98 patients at our dialysis unit developed signs and symptoms consistent with first-use syndrome (FUS). Marked improvement was noted after subjecting new dialyzers to automated processing using either formaldehyde or peracetic acid. No episodes of FUS occurred in patients being treated wi...

journal_title：Artificial organs

authors： Vanholder R,Ringoir S

更新日期：1987-04-01 00:00:00

abstract：:The E4T is a totally implantable total artificial heart (TAH) resulting from many years of research work at the Cleveland Clinic Foundation (CCF) and Nimbus, Inc. It consists of four implanted subsystems: the pumping unit, the variable volume device, the transcutaneous transformer, and the internal battery. The pumpin...

journal_title：Artificial organs

authors： Smith WA,Hete BF,Kiraly RJ,Fujimoto LK,Jacobs GB,Ishikawa M,Butler K,Nosé Y

更新日期：1988-10-01 00:00:00

abstract：:Cybernetics-based concepts can allow for complete independence for paralyzed individuals, including sensory motor recovery. Spinal cord injuries are responsible for a huge stress on health and a financial burden to society. This article focuses on novel procedures such as functional diagnosis for paraplegics and tetra...

journal_title：Artificial organs

authors： Varoto R,Cliquet A Jr

更新日期：2015-10-01 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：: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 infla...

journal_title：Artificial organs

authors： Santos NS,Draibe SA,Kamimura MA,Canziani ME,Cendoroglo M,Júnior AG,Cuppari L

更新日期：2003-08-01 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：: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：:Patients with kidney failure can only survive with some form of kidney replacement (transplant or dialysis). Unfortunately, innovations in kidney replacement therapy lag behind many other medical fields. This study compiles expert opinions on candidate technologies for future kidney replacement therapies. A worldwide ...

journal_title：Artificial organs

authors： Pereira Cabral B,Bonventre JV,Wieringa F,Mota FB

更新日期：2020-07-22 00:00:00

abstract：:The VentrAssist pump has no shaft or seal, and the device is unique in design because the rotor is suspended passively by hydrodynamic forces, and urging is accomplished by an integrated direct current motor rotor that also acts as the pump impeller. This device has led to many challenges in its fluidic design, namely...

journal_title：Artificial organs

authors： Tansley G,Vidakovic S,Reizes J

更新日期：2000-06-01 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：:Individualized short hemodialysis treatment schedules, approximately three 3-h treatments per week, were introduced in a nephrology unit in 1976. In May 1985, 259 patients had been treated, which corresponds to approximately 60 new patients per million inhabitants per year. Ages at start of therapy ranged between 17 a...

journal_title：Artificial organs

authors： Wauters JP,Bercini-Pansiot S,Gilliard N,Stauffer JC

更新日期：1986-06-01 00:00:00

abstract：:This work presents results of preliminary studies concerning application of magnetic bearing in a ventricular assist device (VAD) being developed by Dante Pazzanese Institute of Cardiology-IDPC (São Paulo, Brazil). The VAD-IDPC has a novel architecture that distinguishes from other known VADs. In this, the rotor has a...

journal_title：Artificial organs

authors： Horikawa O,de Andrade AJ,da Silva I,Bock EG

更新日期：2008-04-01 00:00:00

abstract：:Extracorporeal membrane oxygenation (ECMO) is used for severe acute respiratory distress syndrome. However, available ECMO systems are large and not well designed for fast delivery, emergency implantation, and interhospital transfer. Therefore, a new miniaturized oxygenator with integrated rotary blood pump (ILIAS) wa...

journal_title：Artificial organs

authors： Pilarczyk K,Heckmann J,Lyskawa K,Strauß A,Haake N,Wiese I,Jakob H,Kamler M,Pizanis N

更新日期：2016-07-01 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