Abstract:
:A surgical method for the implantation of a mechanical right ventricular assist device which avoids resternotomy/thoracotomy and related complications at the time of explantation is presented. In order to support the failing right heart, a Dacron vascular graft was sewn to the pulmonary artery. For venous drainage, a cannula was inserted into the right atrium via the femoral vein. Explantation of the system, after the right heart resumed its function, was accomplished by retracting and compressing the venous cannula in the groin as well as by retracting the arterial cannula from the Dacron vascular graft followed by suturing without opening the chest. Between 2006 and 2011, this system was used in 12 patients. The median duration of right heart support was 10.5 days. Seven patients were successfully weaned from the system, six patients survived. In all cases, explantation was free of complications. The technique described is a safe method to support the right heart and allows explantation without the risks and complications of reopening the thorax.
journal_name
Artif Organsjournal_title
Artificial organsauthors
Schopka S,Haneya A,Rupprecht L,Camboni D,Schmid C,Hilker Mdoi
10.1111/j.1525-1594.2012.01520.xsubject
Has Abstractpub_date
2012-08-01 00:00:00pages
700-4issue
8eissn
0160-564Xissn
1525-1594journal_volume
36pub_type
杂志文章abstract::Five typical mechanical heart valves (Starr-Edwards, Björk-Shiley convexo-concave (c-c), Björk-Shiley monostrut, Bicer-Val, and St. Jude Medical) were tested in the mitral position under the pulsatile flow condition. The test program included measurements of velocity and turbulent stresses at 5 downstream locations. T...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1997.tb00451.x
更新日期:1997-10-01 00:00:00
abstract::Implantable ventricular assist devices have proven efficacious as a bridge to transplantation and as a bridge to recovery. Although current indications for use of assist devices are somewhat limited, they are likely to expand in the upcoming years, including their use as destination therapy for end-stage heart failure...
journal_title:Artificial organs
pub_type: 杂志文章,评审
doi:10.1046/j.1525-1594.2002.07122.x
更新日期:2002-11-01 00:00:00
abstract::Adsorption therapy, which treats the autoimmune disease by the selective removal of pathogenic substances from the blood, is an active subject. In this therapy, bioactive molecules such as antigen, antibodies and protein A are usually used as affinity-ligands. The disadvantages of using these substances as affinity-li...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1990.tb02977.x
更新日期:1990-10-01 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
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1989.tb02861.x
更新日期:1989-06-01 00:00:00
abstract::The aim of this study was to investigate whether the use of a medically approved biodegradable scaffold as a solid support system would enhance graft survival following transplantation into the omental pouch in a preclinical large animal model. Six beagle dogs underwent total pancreatectomy followed by islet autotrans...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2008.00688.x
更新日期:2008-12-01 00:00:00
abstract::A computer simulation was carried out to investigate the influence of nonpulsatile left ventricular assistance on hemodynamics. A simulation circuit was constructed to represent the circulatory system. A source of current was added to denote the nonpulsatile blood pump. The left and right ventricles were replaced by v...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1996.tb04494.x
更新日期:1996-05-01 00:00:00
abstract::Solute clearance during high-flux hemodialysis is determined by the combined effects of solute convection and diffusion in the membrane, blood, and dialysate. Previous studies have focused almost entirely on the membrane transport phenomena, largely ignoring the potential contribution from bulk mass transport across t...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1993.tb00403.x
更新日期:1993-11-01 00:00:00
abstract::As the aortic valve (AV) opens, the pump pressure head remains constant, which is reflected as a "notch/plateau" in pump pressure and flow signals. However, instantaneous flow estimation may be influenced by friction and is particularly difficult in axial pumps. Therefore, a new method to determine the duration of AV ...
journal_title:Artificial organs
pub_type: 杂志文章,多中心研究
doi:10.1111/aor.12570
更新日期:2015-08-01 00:00:00
abstract::Secondary flow in the centrifugal blood pump helps to enhance the washout effect and to minimize thrombus formation. On the other hand, it has an adverse effect on pump efficiency. Excessive secondary flow may induce hemolytic effects. Understanding the secondary flow is thus important to the design of a compact, effi...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2004.29012.x
更新日期:2005-01-01 00:00:00
abstract::EXTEND (EXTra-uterine Environment for Neonatal Development) is a novel system for supporting extremely premature infants that replicates in utero conditions by maintaining a sterile fluid environment and providing gas exchange via a pumpless arteriovenous oxygenator circuit connected to the umbilical vessels. Target g...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.13524
更新日期:2019-12-01 00:00:00
abstract::To assess the efficiency of respiratory gas exchange in vitro through a dialysis membrane mounted inside a flat plate Kiil dialyzer, the model reactions of hydrogen peroxide reduction by a metal ion and of the carbon dioxide precipitation in the form of a carbonate in the dialysate were used. A comparison of the rates...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1983.tb04189.x
更新日期:1983-05-01 00:00:00
abstract::A computational fluid dynamic model to assess the impact of flow-diverter device on intra-aneurysmal flow in complex aortic aneurysm from the viewpoint of hemodynamics is presented. The aim of this study is to investigate the hemodynamic effects of an endovascular flow-diverter technique using multiple overlapping unc...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.12993
更新日期:2018-02-01 00:00:00
abstract::The blood flow through the hemofilter device is the key point for ultrafiltrate production during continuous arteriovenous hemofiltration. It mainly depends on arteriovenous pressure gradient and vascular access, which is the major problem for arteriovenous hemofiltration in infants and small children. In infants, we ...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1988.tb01518.x
更新日期:1988-02-01 00:00:00
abstract::Medial opening-wedge has gained popularity in comparison to other techniques of high tibial osteotomy. This technique involves the creation of a gap in the tibia. Filling the gap with autologous iliac bone graft was recommended in the classic description, to prevent complications such as correction loss or delayed bon...
journal_title:Artificial organs
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1525-1594.2010.01058.x
更新日期:2011-03-01 00:00:00
abstract::Inverse ratio ventilation (IRV) is a ventilatory technique that uses an inspiratory to expiratory ratio (I:E) greater than 1:1. We studied the effects of mechanical ventilation with an I:E of 1:3, 1:1, and 2:1 on arterial oxygenation in 10 patients with sepsis-associated acute respiratory distress syndrome (ARDS). At ...
journal_title:Artificial organs
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:2000-11-01 00:00:00
abstract::An investigation has been made into whether charcoal hemoperfusion stimulates a hyperplastic response in the liver of the normal rat. Animals underwent hemoperfusion over Norit RBX1 (Strathclyde, Glasgow, U.K.) charcoal granules using a technique which allowed perfusion in the unrestrained and conscious state. Control...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1982.tb04080.x
更新日期:1982-05-01 00:00:00
abstract::Hemolysis is one of the most important performance parameters of blood pumps. However, comparative in vitro evaluation of the reported hemolysis effect is difficult owing to the lack of uniformity in the test methods used. Currently, three types of formulas are generally accepted and widely used for the index of hemol...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1994.tb03292.x
更新日期:1994-01-01 00:00:00
abstract::The objective of our study was to investigate chondrogenesis potential of human adipose-derived mesenchymal stromal cells (MSCs), using as a positive control a human source of cartilage-derived progenitor cells (PCs). This source of PCs was recently described by our group and dwells on the surface of nasoseptal cartil...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.12121
更新日期:2013-12-01 00:00:00
abstract::Success of total artificial heart (TAH) implantation as a temporary measure depends on three factors: proper patient selection, adequate surgical technique, and safe cardiac prostheses. From 1986 until March 1990, 237 patients with stagnant heart failure were examined. Sixty-one patients (27%) were put on a waiting li...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1991.tb00745.x
更新日期:1991-10-01 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
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1988.tb02781.x
更新日期:1988-08-01 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
pub_type: 杂志文章,评审
doi:10.1046/j.1525-1594.2002.07084.x
更新日期:2002-07-01 00:00:00
abstract::The characteristic depressed hemodynamic state and gradually declining circulatory function in Fontan patients necessitates alternative postoperative management strategies incorporating a system level approach. In this study, the single-ventricle Fontan circulation is modeled by constructing a practical in vitro bench...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2009.00951.x
更新日期:2009-11-01 00:00:00
abstract::A 36-year-old female was treated successfully by hemoperfusion over Amberlite XAD-4 resin after ingestion of 40 gm of meprobamate. Hemoperfusion was started five hours after the ingestion. At that time the patient was in deep coma. The patient was treated by hemoperfusion for five hours, at the end of which time she w...
journal_title:Artificial organs
pub_type: 杂志文章
doi:
更新日期:1981-02-01 00:00:00
abstract::Neurologic complications during on-pump cardiovascular surgery are often induced by mobilization of atherosclerotic plaques, which is directly related to enhanced wall shear stress. In the present study, we numerically evaluated the impact of dispersive aortic cannulas on aortic blood flow characteristics, with specia...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.12359
更新日期:2015-03-01 00:00:00
abstract::Turbulent blood flow in medical devices contributes to blood trauma, yet the exact mechanism(s) have not been fully elucidated. Local turbulent stresses, viscous stresses, and the rate of dissipation of the turbulent kinetic energy have been proffered as hypotheses to describe and predict blood damage. In this work, s...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.12572
更新日期:2015-12-01 00:00:00
abstract::Sponge-type small-diameter vascular grafts were fabricated from a medical-grade polyurethane, Pellethane 2363-80A, by utilization of a salt casting technique. The grafts were compliance matched with a storage modulus of 0.53 +/- 0.08 MPa. The luminal surface of grafts was modified with a thin layer ( approximately 40 ...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2003.07141.x
更新日期:2003-12-01 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
pub_type: 杂志文章
doi:10.1046/j.1525-1594.2003.07273.x
更新日期:2003-08-01 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
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1988.tb02813.x
更新日期:1988-12-01 00:00:00
abstract::Lipid apheresis has developed from a heroic treatment into a routine clinical therapy and currently is the major indication for performing extracorporeal plasma therapy. Whereas it was once reserved for patients with homozygous familial hypercholesterolemia, today it has a place in the secondary prevention of severe c...
journal_title:Artificial organs
pub_type: 杂志文章,评审
doi:10.1111/j.1525-1594.1996.tb04525.x
更新日期:1996-05-01 00:00:00
abstract::To evaluate their toxicity at the cellular level, middle molecules from uremic serum were incubated with erythrocytes from healthy subjects and the activity of the enzyme Delta-aminolevulinic acid dehydrase (D-ALA-D) and peroxidative hemolysis were investigated. Uremic middle molecules caused a significant decrease of...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1978.tb01626.x
更新日期:1978-11-01 00:00:00