Numerical Simulation of Nonpulsatile Left Ventricular Bypass.

abstract：:It has been speculated that testosterone stimulates erythropoiesis. We hypothesized that hemoglobin levels in hemodialysis (HD) patients are associated with serum testosterone concentrations. Testosterone, hemoglobin, and other biochemical parameters were measured in a representative sample of 98 chronic HD patients (...

journal_title：Artificial organs

authors： Ekart R,Taskovska M,Hojs N,Bevc S,Hojs R

更新日期：2014-07-01 00:00:00

abstract：:Postoperative liver failure remains a major cause of morbidity and mortality after extensive hepatectomies. This study aims to evaluate the effectiveness of a hepatocyte bioreactor in the treatment of experimental post-hepatectomy liver failure. Our experimental model included a combination of a side-to-side portacava...

journal_title：Artificial organs

authors： Arkadopoulos N,Kostopanagiotou G,Nastos C,Papalois A,Papoutsidakis N,Kalimeris K,Defterevos G,Kanna T,Polyzois K,Kampouroglou G,Kypriotis D,Costopanagiotou C,Pafiti A,Tzanatos H,Smyrniotis V

更新日期：2011-01-01 00:00:00

abstract：:Wall shear stress on the pump casing cover was measured using a surface-mounted hot-film sensor. In addition, the shear stress distribution in the pump was qualitatively investigated by means of oil-film visualization. The characteristics of shear stress in the pump are discussed, including the results on the oil-film...

journal_title：Artificial organs

authors： Mizunuma H,Nakajima R

更新日期：2007-07-01 00:00:00

abstract：:Porous polyurethane (nonwoven) was used for the development of tracheal prosthesis, which--in a special testing design--was adapted to shape and biomechanic properties of the natural organ. This prosthesis was implanted into 19 beagle dogs using inverted, everted, and end-to-end anastomosis. Insufficiency of the anast...

journal_title：Artificial organs

authors： Schauwecker HH,Gerlach J,Planck H,Bücherl ES

更新日期：1989-06-01 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：: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

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 use of recombinant human erythropoietin (rHuEpo) has revolutionized anemia management of early and late stages of chronic kidney disease. Darbopoietin is also now available for the treatment of anemia of chronic kidney disease. In addition, rHuEpo has been used for the treatment of anemia observed in critical illn...

journal_title：Artificial organs

authors： Liangos O,Pereira BJ,Jaber BL

更新日期：2003-09-01 00:00:00

abstract：:Spiral/helical forms of blood flow have been observed in large arteries of the cardiovascular system, but their benefits remain underappreciated. Spiral flow has been postulated to improve near-wall washout, promoting anti-atherothrombotic conditions. This research aims to study the washout characteristics of spiral f...

journal_title：Artificial organs

authors： Huang Zhang P,Tkatch C,Newman R,Grimme W,Vainchtein D,Kresh JY

更新日期：2019-12-01 00:00:00

abstract：:An increasing amount of evidence points to cerebral embolization during cardiopulmonary bypass (CPB) as the principal etiologic factor of neurologic complications. In this study, the capability of capturing and classification of gaseous emboli and pressure drop of three different membrane oxygenators (Sorin Apex, Teru...

journal_title：Artificial organs

authors： Guan Y,Palanzo D,Kunselman A,Undar A

更新日期：2009-11-01 00:00:00

abstract：:Controlled and repeatable in vitro evaluation of cardiovascular devices using a mock circulation loop (MCL) is essential prior to in vivo or clinical trials. MCLs often consist of only a systemic circulation with no autoregulatory responses and limited validation. This study aimed to develop, and validate against huma...

journal_title：Artificial organs

authors： Gregory SD,Pauls JP,Wu EL,Stephens A,Steinseifer U,Tansley G,Fraser JF

更新日期：2020-06-01 00:00:00

abstract：:Extracorporeal membrane oxygenation (ECMO) is gaining importance in the perioperative management of lung transplant patients. To date, the ideal substance for anticoagulation of ECMO patients is still a matter of debate. In this study, we describe our experience with the use of low molecular weight heparin (LMWH) in c...

journal_title：Artificial organs

authors： Gratz J,Pausch A,Schaden E,Baierl A,Jaksch P,Erhart F,Hoetzenecker K,Wiegele M

更新日期：2020-06-01 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：: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：: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：:To remove anti-DNA antibodies from a patient's plasma with systemic lupus erythematosus (SLE), a DNA immunoadsorbent was developed by covalently coupling calf thymus DNA on activated Sepharose 4FF. Sepharose 4FF was activated with 5-norbornene-2,3-dicarboximido carbonochloridate (Cl-CO-ONB), which was proven to be a v...

journal_title：Artificial organs

authors： Kong DL,Schuett W,Boeden HF,Kunkel S,Holtz M,Matic G,Yamada R,Yu YT,Klinkmann H

更新日期：2000-11-01 00:00:00

abstract：:Out-of-Hospital refractory Cardiac Arrest (OHrCA) has a mortality rate between 90 and 95%. Since 2009, French medical academic societies have recommended the use of extracorporeal life support (ECLS) for OHrCA. According to these guidelines, patients were eligible for ECLS support if vital signs were still present dur...

journal_title：Artificial organs

authors： Rousse N,Robin E,Juthier F,Hysi I,Banfi C,Al Ibrahim M,Coadou H,Goldstein P,Wiel E,Vincentelli A

更新日期：2016-09-01 00:00:00

abstract：:For introduction of a left atrial (LA) cannula by the transseptal puncture technique, we examined the feasibility of using biplane transesophageal echocardiography (B-TEE). A transseptal puncture was performed on 15 patients (3 male; 12 female; mean age, 48.9 +/- 11.2 years) by B-TEE guide during percutaneous transven...

journal_title：Artificial organs

authors： Kyo S,Motoyama T,Miyamoto N,Noda H,Dohi Y,Omoto R

更新日期：1992-08-01 00:00:00

abstract：:Veno-arterial extracorporeal membrane oxygenation (ECMO) may be implanted using peripheral ECMO (pECMO) or central ECMO (cECMO) cannulation techniques. The aim of this study was to compare the outcome between these two cannulation techniques. A retrospective study was performed at Düsseldorf University Hospital from O...

journal_title：Artificial organs

authors： Saeed D,Stosik H,Islamovic M,Albert A,Kamiya H,Maxhera B,Lichtenberg A

更新日期：2014-07-01 00:00:00

abstract：:Continuous and intermittent high shear were loaded to red blood cells in a cone and a plate rheoscope. The mechanical damage to red cells was compared for continuous and intermittent shear. The intermittent shear was achieved by alternately starting and stopping shear repeatedly. In the case of intermittent shear load...

journal_title：Artificial organs

authors： Mizunuma H,Sakai S

更新日期：2007-06-01 00:00:00

abstract：:Midsize molecule retention is related with renal-failure-associated mortality. Here, the authors describe a new dialysis modality, pulse push/pull hemodialysis (PPPHD), which increases convective clearance. Blood and dialysate are circulated by a pulsatile pump, but with pulsatile flow patterns that are 180 degrees ou...

journal_title：Artificial organs

authors： Lee K,Lee SR,Mun CH,Min BG

更新日期：2008-05-01 00:00:00

abstract：BACKGROUND:The use of ventricular assist devices (VAD) as a bridge to heart transplant (HT) is increasing, while HT volume remains stagnant. This may portend longer waiting times and an otherwise more competitive environment for all patients on the HT waiting list. METHODS:A retrospective analysis of patients who were...

journal_title：Artificial organs

authors： Han JJ,Elzayn H,Duda MM,Iyengar A,Acker AM,Patrick WL,Helmers M,Birati EY,Atluri P

更新日期：2020-10-01 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：:Only a small number of English hospitals provide postcardiotomy venoarterial extracorporeal membrane oxygenation (VA-ECMO) and there are doubts about its efficacy and safety. The aim of this service evaluation was to determine local survival rates and report on patient demographics. This was a retrospective service ev...

journal_title：Artificial organs

authors： Charlesworth M,Garcia M,Head L,Barker JM,Ashworth AD,Barnard JB,Feddy L,Venkateswaran RV

更新日期：2020-07-01 00:00:00

abstract：:We investigated biodegradation and biocompatibility of poly(organophosphazenes). We prepared poly(organophosphazenes) having different side chain groups. The blood compatibility of poly(organophosphazenes) containing fluorinated side groups, poly(bis[trifluoroethoxy]phosphazene) (PbFP) and poly([trifluoroethoxy][ethyl...

journal_title：Artificial organs

authors： Kawakami H,Kanezaki S,Sudo M,Kanno M,Nagaoka S,Kubota S

更新日期：2002-10-01 00:00:00

abstract：:We made miniature modules filled with artificial oxygenator hollow fibers and conducted a simple experiment to study the effect of different membrane structures on the blood. Three types of modules were made: one filled with polyolefin, one filled with polypropylene, and a blank module. The 3 modules were connected th...

journal_title：Artificial organs

authors： Nishida H,Shibuya M,Endo M,Koyanagi H

更新日期：1996-12-01 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：:Stents are small, usually metallic tubes that are intended to prop open arteries blocked with atherosclerotic plaques. While stents have been used successfully in recent years, they still suffer from failure due to development of new tissue in stented segment (restenosis). Variations in the failure rates associated wi...

journal_title：Artificial organs

authors： Frank AO,Walsh PW,Moore JE Jr

更新日期：2002-07-01 00:00:00

abstract：:Although several left ventricular assist devices (LVADs) have been used widely, remote monitoring of LVAD parameters has been available only recently. We present our remote monitoring experience with an axial-flow LVAD (HeartAssist-5, MicroMed Cardiovascular, Inc., Houston, TX, USA). Five consecutive patients who were...

journal_title：Artificial organs

authors： Pektok E,Demirozu ZT,Arat N,Yildiz O,Oklu E,Eker D,Ece F,Ciftci C,Yazicioglu N,Bayindir O,Kucukaksu DS

更新日期：2013-09-01 00:00:00

abstract：:There is increasing evidence showing that adult stem cells are useful for tissue regeneration. Bone marrow mesenchymal stem cells (MSCs) are self-renewing and are potent in differentiating into multiple cells and tissues. To investigate the practicability of repairing burn wounds with tissue-engineered (TE) skin combi...

journal_title：Artificial organs

authors： Liu P,Deng Z,Han S,Liu T,Wen N,Lu W,Geng X,Huang S,Jin Y

更新日期：2008-12-01 00:00:00