Nonsymmetric leaflet motion of St. Jude Medical mitral valves simulated with a computer-controlled hydraulic mock circulator.

abstract：:Left dominant biventricular failure is a common type of heart failure after cardiac surgery. We developed a biventricular bypass (BVB) system for treatment of postcardiotomy ventricular failure, and we previously reported that the clinical results of the BVB system were superior to those obtained with venoarterial byp...

journal_title：Artificial organs

authors： Kodera K,Kitamura M,Shibuya M,Kurihara H,Koyanagi H

更新日期：1998-09-01 00:00:00

abstract：:The growing practice of dialyzer reuse in recent years is mainly based on medical and economic considerations. However, adverse reactions such as immunohemolytic anemia due to anti-Nform antibody associated with dialyzer reuse have been reported. In this study, scanning electron microscopy and cytologic staining were ...

journal_title：Artificial organs

authors： Ng YY,Yang AH,Wong KC,Lan HY,Hung TL,Kerr PG,Huang TP

更新日期：1996-01-01 00:00:00

abstract：:The on-line measurement during hemodialysis of ionic dialysance provides an estimation of urea clearance with a good and already proven correlation. Some discrepancies remain controversial, and the influence of the dialyzer membrane is still being debated. Eighty-eight measurements of ionic dialysance (ID) were perfor...

journal_title：Artificial organs

authors： Mercadal L,Petitclerc T,Jaudon MC,Béné B,Goux N,Jacobs C

更新日期：1998-12-01 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：:The kinetic features of ultrafiltration of cellulose dialysis membrane stored under various humidity and temperature conditions were studied to obtain basic information of shelf-life characteristics of dialyzers. The ultrafiltration rate (UFR) decreased with time and the UFR-time curve suggested that the UFR would app...

journal_title：Artificial organs

authors： Sato H,Kidaka T

更新日期：1981-08-01 00:00:00

abstract：:The purpose of this study was to investigate whether an artificial matrix can help neonatal cardiomyocytes restore an injured heart in a rat model of myocardial infarction (MI). The left coronary arteries of female Sprague Dawley (SD) rats were ligated to create MI models. Ventricular cardiomyocytes from 1- to 3-day-o...

journal_title：Artificial organs

authors： Zhang P,Zhang H,Wang H,Wei Y,Hu S

更新日期：2006-02-01 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：:Tissue-engineered heart valves constructed from a xenogeneic or allogeneic decellularized matrix might overcome the disadvantages of current heart valve substitutes. One major necessity besides effective decellularization is to preserve the biomechanical properties of the valve. Native and decellularized porcine pulmo...

journal_title：Artificial organs

authors： Seebacher G,Grasl C,Stoiber M,Rieder E,Kasimir MT,Dunkler D,Simon P,Weigel G,Schima H

更新日期：2008-01-01 00:00:00

abstract：:We carried out this retrospective study to examine the magnesium status of our chronic ambulatory peritoneal dialysis (CAPD) patients dialyzed with 0.75 mmol/L (group I) or 0.50 mmol/L (group II) magnesium peritoneal dialysis solution. A total of 34 anuric patients on CAPD (age:31-72 years; duration of CAPD:7-74 month...

journal_title：Artificial organs

authors： Katopodis KP,Koliousi EL,Andrikos EK,Pappas MV,Elisaf MS,Siamopoulos KC

更新日期：2003-09-01 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：:A novel method of extracorporeal support for fulminant liver failure is reported whereby the most important detoxification processes of the liver are reproduced in an enzyme reactor. Most of the endogenous toxins involved in hepatic coma can be deactivated directly by conjugation with a hydrophilic residue such as glu...

journal_title：Artificial organs

authors： Brunner G,Holloway CJ,Lösgen H

更新日期：1979-02-01 00:00:00

abstract：:The durability of ventricular assist device (VAD) therapy improved steadily over the past years. However, driveline infections remain a challenge. To test whether an improved surgical implantation technique may lower the incidence of infections, we analyzed all patients receiving a VAD implantation in the years 2008 a...

journal_title：Artificial organs

authors： Fleissner F,Avsar M,Malehsa D,Strueber M,Haverich A,Schmitto JD

更新日期：2013-01-01 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：:Right ventricular (RV) function immediately after left ventricular assist device (LVAD) implantation is a crucial prognostic factor. RV failure is linked to increased mortality and worse outcome. A phosphodiesterase 5 inhibitor, sildenafil, was shown to decrease pulmonary vascular resistance and pulmonary artery press...

journal_title：Artificial organs

authors： Hamdan R,Mansour H,Nassar P,Saab M

更新日期：2014-11-01 00:00:00

abstract：:We have studied the cardiac beat synchronization (CBS) control for a rotary blood pump (RBP) and revealed that it can promote pulsatility and reduce cardiac load. Besides, patients with LVAD support sometimes suffer from aortic and mitral regurgitation (AR and MR). A control method for the RBP should be validated in w...

journal_title：Artificial organs

authors： Ogawa D,Kobayashi S,Yamazaki K,Motomura T,Nishimura T,Shimamura J,Tsukiya T,Mizuno T,Takewa Y,Tatsumi E,Nishinaka T

更新日期：2020-08-19 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：:Transcatheter aortic valve implantation (TAVI) has gained considerable acceptance in the past decade due to its lower risks than conventional open-heart surgery. However, the deformation and delamination of the leaflets during the crimping procedure have raised questions about the durability and long-term serviceabili...

journal_title：Artificial organs

authors： Mao J,Rassoli A,Tong Y,Rouse EN,Le-Bel G,How D,Germain L,Fatouraee N,Zhang Z,Reed RR,Guidoin R

更新日期：2019-10-01 00:00:00

abstract：:Biomechanical actuation of an implanted ventricular assist device (VAD) is an attractive means of providing long-term circulatory support. Studies show that energy from electrically stimulated skeletal muscle can, in principle, be used to provide tether-free cardiac assistance without the need for percutaneous driveli...

journal_title：Artificial organs

authors： Trumble DR

更新日期：2011-07-01 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 maximum ventricular elastance is a reliable index for assessing the cardiac function from changes in its pressure-volume relationship. The advantage of this index is that it can represent the contractility of either unassisted hearts or native hearts assisted with rotary blood pumps. However, there are situations ...

journal_title：Artificial organs

authors： Sugai TK,Tanaka A,Yoshizawa M,Shiraishi Y,Yambe T,Nitta S,Baba A

更新日期：2010-05-01 00:00:00

abstract：:The energy dissipated in blood or on a total artificial heart (TAH) chamber's elements directly or indirectly decreases the biological or technical safety of the TAH's work. The energetic analysis of the Polish total artificial heart (POLTAH) external work with the objective of estimating the valve and membrane roles ...

journal_title：Artificial organs

authors： Nawrat Z,Malota Z

更新日期：1998-10-01 00:00:00

abstract：:To provide percutaneous access, a new circulatory assist system was developed. We call this newly developed system the modified assist device (MAD). The system is composed of a sac-type blood pump and cannula. Inflow and outflow valves are mounted in the apex and at the side wall 10 cm from the apex of the cannula, re...

journal_title：Artificial organs

authors： Imanishi K,Imachi K,Yoshito H,Isoyama T,Abe Y,Chinzei T,Mabuchi K,Kanda K,Tsutsui N,Suma K,Fujimasa I

更新日期：1996-02-01 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：: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：:Liposome-encapsulated hemoglobin (LEH) was proven to be protective in cerebral ischemia/reperfusion injury. The present study evaluated LEH in a rat model of permanent middle cerebral artery (MCA) occlusion to clarify its effect during ischemia and reperfusion. Five minutes after thread occlusion of the MCA, rats were...

journal_title：Artificial organs

authors： Kawaguchi AT,Kurita D,Furuya H,Yamano M,Ogata Y,Haida M

更新日期：2009-02-01 00:00:00

abstract：:The aim of the present study was to compare the effects of ProTaper Gold, WaveOne Gold, ProTaper Universal, and WaveOne instruments on the amount of apically extruded debris. Eighty mandibular premolar teeth with straight root canals were selected and assigned to four groups (n = 20). The root canals were instrumented...

journal_title：Artificial organs

authors： Karataş E,Ersoy İ,Gündüz HA,Uygun AD,Kol E,Çakıcı F

更新日期：2016-08-01 00:00:00

abstract：:Total hip arthroplasty (THA) can be achieved by using a cemented or noncemented prosthesis. Besides patient's age, weight, and other clinical signs, the evaluation of the quality of the bones is a crucial parameter on which orthopedic surgeons base the choice between cemented and noncemented THA. Although bone density...

journal_title：Artificial organs

authors： Gargiulo P,Pétursson T,Magnússon B,Bifulco P,Cesarelli M,Izzo GM,Magnúsdóttir G,Halldórsson G,Ludvigsdóttir GK,Tribel J,Jónsson H Jr

更新日期：2013-06-01 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 compliance problem represents a major obstacle in the development of implantable blood pumps. The motor-driven pumps are enclosed in an airtight casing with gas in the motor space. The trapped gas in the motor space either increases the load on the motor during systole or impedes blood sac filling. Potential solut...

journal_title：Artificial organs

authors： Lee S,Rosenberg G,Donachy JH,Wisman CB,Pierce WS

更新日期：1984-02-01 00:00:00

abstract：:The in vitro development of a vascular stroma might be a solution for the engineering of vascularized tissues, however, in vitro stability of capillary-like structures is limited. In order to test the influence on maintenance of capillary-like structures, human growth hormone (hGH) was added in concentrations of 0.5, ...

journal_title：Artificial organs

authors： Frerich B,Kurtz-Hoffmann J,Lindemann N

更新日期：2005-04-01 00:00:00