Analysis of left ventricular impedance in comparison with ultrasound images.

abstract：:The goal of this study was to determine whether porcine islets encapsulated in hollow fibers made of AN69 copolymer can correct hyperglycemia in diabetic mice and provide normal tolerance to a glucose challenge. In vitro perifusion of hollow fibers demonstrated the rapid kinetics of insulin release in response to gluc...

journal_title：Artificial organs

authors： Delaunay C,Darquy S,Honiger J,Capron F,Rouault C,Reach G

更新日期：1998-04-01 00:00:00

abstract：:Tissue engineering utilizes an interdisciplinary approach to generate constructs for the treatment and repair of diseased organs. Generation of small vessels as vascular grafts or as envisioned central vessel for vascularized constructs is still a challenge. Here, the decellularization of porcine vessels by a non-dete...

journal_title：Artificial organs

authors： Eyre K,Samper E,Haverich A,Hilfiker A,Andrée B

更新日期：2020-10-01 00:00:00

abstract：:In 1976, the authors became the codevelopers of the first successful bileaflet heart valve which has become the standard in valvular surgery. However, there still remains a significant rate of thromboembolism and thrombosis which can be attributed to the inherent design of cavities in the pivot area. These cavities co...

journal_title：Artificial organs

authors： Nicoloff DM,Friedberg HD,Villafaña MA

更新日期：2002-05-01 00:00:00

abstract：:There is an increasing need for research and development centers to deal with design and evaluation of organ replacement systems, the improvement of older devices, and the study of biocompatibility problems. Special attention, in this article, is focused on the determinant role of the background of the investigators i...

journal_title：Artificial organs

authors： Vanholder R,Ringoir S

更新日期：1989-12-01 00:00:00

abstract：:Traumatic injury is often associated with hemorrhagic shock. Liposome-encapsulated hemoglobin (LEH) is being developed as an artificial oxygen carrier to address post-hemorrhage oxygen and volume deficit. Here, we report a new composition of LEH based on the use of polyethylene glycol (PEG2K ) conjugated with nonphosp...

journal_title：Artificial organs

authors： Yadav VR,Nag O,Awasthi V

更新日期：2014-08-01 00:00:00

abstract：:In bioartificial pancreatic systems, isolated islets of Langerhans are protected against immune rejection by an artificial membrane, permeable to glucose and insulin, but not to immunoglobulins and lymphocytes. Some of these devices, referred to as vascular systems, are set up to be connected to a vascular site in the...

journal_title：Artificial organs

authors： Lepeintre J,Briandet H,Moussy F,Chicheportiche D,Darquy S,Rouchette J,Imbaud P,Duron JJ,Reach G

更新日期：1990-02-01 00:00:00

abstract：:Different from the existing tissue engineering strategies, rapid prototyping (RP) techniques aim to automatically produce complex organs directly from computer-aided design freeform models with high resolution and sophistication. Analogous to building a nuclear power plant, cell biology (especially, renewable stem cel...

journal_title：Artificial organs

authors： Wang X

更新日期：2012-11-01 00:00:00

abstract：:Activated clotting time (ACT) is the most commonly used laboratory test to control the heparin effect during extracorporeal techniques. The study was undertaken in order to test in vitro the influence of heparin, platelet count, hematocrit, platelet fragmentation, and platelet activation on ACT. Blood was drawn from v...

journal_title：Artificial organs

authors： Girardi L,Sudi K,Muntean W

更新日期：2000-07-01 00:00:00

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：:The ventricular assist device inflow cannulation site is the primary interface between the device and the patient. Connecting these cannulae to either atria or ventricles induces major changes in flow dynamics; however, there are little data available on precise quantification of these changes. The objective of this i...

journal_title：Artificial organs

authors： Timms D,Gregory S,Hsu PL,Thomson B,Pearcy M,McNeil K,Fraser J,Steinseifer U

更新日期：2010-09-01 00:00:00

abstract：:Insufficient unloading of the left ventricle with blood stagnation is a main cause of unsuccessful left ventricular (LV) recovery during percutaneous cardiopulmonary support (PCPS). The purpose of this investigation was to evaluate the effectiveness of transaortic catheter venting (TACV) for LV unloading. Six adult mo...

journal_title：Artificial organs

authors： Shibuya M,Kitamura M,Kurihara H,Kikuchi C,Endo M,Koyanagi H

更新日期：1997-07-01 00:00:00

abstract：:Mesenchymal stem cells (MSCs) are regarded as a potential autologous source for cartilage repair, because they can differentiate into chondrocytes by transforming growth factor-beta (TGF-beta) treatment under the 3-dimensional (3-D) culture condition. However, more efficient and versatile methods for chondrogenic diff...

journal_title：Artificial organs

authors： Lee HJ,Choi BH,Min BH,Son YS,Park SR

更新日期：2006-09-01 00:00:00

abstract：:A compact three-dimensional (3D) module is needed for hepatocyte culture in order to develop an effective hybrid artificial liver system that can retain hepatocellular structure and differentiated functions. We treated the 3D module with collagen gel to entrap rat hepatocytes. This method yielded a high hepatocellular...

journal_title：Artificial organs

authors： Takeshita K,Ishibashi H,Suzuki M,Yamamoto T,Akaike T,Kodama M

更新日期：1995-02-01 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：: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：:Proper wound healing can be assessed by monitoring the wound surface area. Its reduction by 10 or 50% should be achieved after 1 or 4 weeks, respectively, from the start of the applied therapy. There are various methods of wound area measurement, which differ in terms of the cost of the devices and their accuracy. Thi...

journal_title：Artificial organs

authors： Foltynski P,Ladyzynski P,Wojcicki JM

更新日期：2014-04-01 00:00:00

abstract：:Mechanical circulatory support (MCS) devices continue to be hampered by thrombotic adverse events (AEs), a consequence of device-imparted supraphysiologic shear stresses, leading to shear-mediated platelet activation (SMPA). In advancing MCS devices from design to clinical use, in vitro circulatory loops containing th...

journal_title：Artificial organs

authors： Li M,Walk R,Roka-Moiia Y,Sheriff J,Bluestein D,Barth EJ,Slepian MJ

更新日期：2020-06-01 00:00:00

abstract：:In vitro tests have shown that electric currents may lead either to relaxation or contraction of the bowel wall. Because voluntary changes of the intestinal motility could be useful in the treatment of intestinal disorders, we investigated the reactions elicited by electrostimulation of the small intestine in the inta...

journal_title：Artificial organs

authors： Moritz A,Grundfest-Broniatowski S,Ilyes L,Kasick J,Jacobs G,Olsen E,Nosé Y

更新日期：1989-04-01 00:00:00

abstract：:Our aim was to study the aging effects on the in vitro biological properties of bone marrow-derived mesenchymal stem cells (BMSCs) for construction of tissue-engineered heart valves. BMSCs were taken from teenagers with congenital heart diseases, and middle-aged and elderly patients with valvular diseases. Proliferati...

journal_title：Artificial organs

authors： Xin Y,Wang YM,Zhang H,Li J,Wang W,Wei YJ,Hu SS

更新日期：2010-03-01 00:00:00

abstract：:One hundred eighty-eight Mitroflow pericardial valves, implanted on 166 patients from March 1983 to December 1986, have been followed for a total of 4316 patients x months. Mortality rate in the first three postoperative months is approximately 10% related to noncardiac complications. One hundred forty-nine patients a...

journal_title：Artificial organs

authors： Loisance D,Hillion ML,Cachera JP

更新日期：1988-08-01 00:00:00

abstract：:We have made an eccentric roller type total artificial heart (ERTAH). The ERTAH is a positive-displacement device comparable to a DeBakey roller pump. Its left and right outputs are determined by the size of its blood chambers, and the ratio of its left and right output is almost constant. We focused on an interatrial...

journal_title：Artificial organs

authors： Wada H,Fukunaga S,Watari M,Sakai H,Sugawara Y,Ochikubo H,Imai K,Shibamura H,Orihashi K,Sueda T,Matsuura Y

更新日期：1999-08-01 00:00:00

abstract：:In transplantation surgery, extending the criteria for organ donation to include organs that may have otherwise been previously discarded has provided the impetus to improve organ preservation. The traditional method of cold static storage (CS) has been tried and tested and is suitable for organs meeting standard crit...

journal_title：Artificial organs

authors： Kumar R,Chung WY,Dennison AR,Garcea G

更新日期：2017-09-01 00:00:00

abstract：:Hemodynamic control of left ventricular assist devices (LVADs) is generally a complicated problem due to diverse operating environments and the variability of the patients: both the changes in the circulatory and metabolic parameters as well as disturbances that require adjustment to the operating point. This challeng...

journal_title：Artificial organs

authors： Choi S,Boston JR,Antaki JF

更新日期：2007-02-01 00:00:00

abstract：:Mycotic aneurysm of the superior mesenteric artery (SMA) is one of the complications associated with infective endocarditis. However, there are no previous case reports in the literature describing mycotic SMA aneurysm after left ventricular assist device (LVAD) implantation. We describe the case of a 31-year-old male...

journal_title：Artificial organs

authors： Motomura T,Bruckner B,Leon-Becerril J,Anaya-Ayala JE,de Rienzo-Madero B,Bismuth J,Bunge R,Irwin S,Loebe M

更新日期：2011-07-01 00:00:00

abstract：:Current hemodialysis treatment is insufficient because of intermittent treatment and loss of tubular function. In order to overcome the loss of tubular function, a bioartificial kidney has been developed consisting of continuous hemofiltration (CHF) with 10 L/day of filtrate and a bioartificial tubule device using pro...

journal_title：Artificial organs

authors： Saito A

更新日期：2004-01-01 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：:Pump power loss is defined as input power that is not used for the output work of the pump. Less pump power loss means a higher pump efficiency. A common opinion is that the pump power loss is closely related to heat generation of the pump, which may affect not only the endurance of pump materials, but also blood dama...

journal_title：Artificial organs

authors： Takami Y,Nakazawa T,Makinouchi K,Glueck J,Ohara Y,Benkowski RJ,Nosé Y

更新日期：1996-07-01 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：:In this study, the hypothesis was tested that a low-resistant, high-compliant oxygenator provides better pulse conductance and less hemolysis than a high-resistant, low-compliant oxygenator during pulsatile cardiopulmonary bypass. Forty adults undergoing coronary artery bypass surgery were randomly divided into two gr...

journal_title：Artificial organs

authors： Simons AP,Wortel P,van Kan RA,van der Veen FH,Weerwind PW,Maessen JG

更新日期：2010-04-01 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