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 transvenous mitral comissurotomy (PTMC). The entire Brocken-brough needle and the position of its tip were clearly observed in the right atrium by a longitudinal image of B-TEE in all patients (100%), and in 2 (13%) of them also by the transverse image of B-TEE. The puncture was about 1 cm caudal from the center of the fossa ovalis to avoid any large residual atrial septal defect. After transseptal puncture, a Mullin's sheath (7 Fr) and a dilator (14 Fr) were inserted into the left atrium in order, and then an Inoue's balloon catheter (12 Fr) was introduced without difficulty into the left atrium in all patients. With contrast injection, the position of the sheaths's tip was clearly confirmed by B-TEE. Left heart bypass support (left atrial-femoral artery bypass or AAB) was performed on 2 patients after percutaneous introduction of the LA cannula using this technique, and both were successfully supported and survived. With B-TEE guidance, the Brockenbrough atrial septal puncture and introduction of the LA cannula into left atrium can be performed easily. Thus, percutaneous left heart bypass can be set up quickly and safely even in an intensive care unit or outpatient emergency room without radiographic guidance.
journal_name
Artif Organsjournal_title
Artificial organsauthors
Kyo S,Motoyama T,Miyamoto N,Noda H,Dohi Y,Omoto Rdoi
10.1111/j.1525-1594.1992.tb00537.xsubject
Has Abstractpub_date
1992-08-01 00:00:00pages
386-91issue
4eissn
0160-564Xissn
1525-1594journal_volume
16pub_type
杂志文章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
pub_type: 杂志文章
doi:10.1111/aor.12675
更新日期:2016-08-01 00:00:00
abstract::Using an ex vivo model, the effects of membrane composition and surface area on both the complement system (as reflected by plasma C3a levels) and platelets [as indicated by plasma concentrations of thromboxane B2 (TXB2) and platelet factor 4 (PF4)] were studied. In this model, polyacrylonitrile (PAN) was associated w...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1987.tb02648.x
更新日期:1987-04-01 00:00:00
abstract::We report on the most recent data confirming the angiographic and pathological efficacy of LDL-apheresis for coronary atherosclerosis of a familial hypercholesterolemia (FH) patient using collected data of a large number of cases and especially of one autopsy case. Changes in coronary artery stenosis have been assesse...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1992.tb00289.x
更新日期:1992-04-01 00:00:00
abstract::Veno-venous extracorporeal lung assist (ECLA) can provide sufficient gas exchange even in most severe cases of acute respiratory distress syndrome. Commercially available systems are manually controlled, although an automatically controlled ECLA could allow individualized and continuous adaption to clinical requiremen...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.12664
更新日期:2016-10-01 00:00:00
abstract::We have been developing a new type of centrifugal pump for long-term use. The magnetically suspended centrifugal pump (MSCP) contains no shaft and seal so that long life expectancy is predicted. Paracorporeal left ventricular (LV) assist circulation between the left atrium and the descending aorta was instituted using...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1997.tb03713.x
更新日期:1997-07-01 00:00:00
abstract::Cyclosporine (CyA) has an immunosuppressive effect that might suggest a therapeutic role in idiopathic glomerular conditions. We focused on the optimization of CyA treatment control in patients with idiopathic nephrotic syndrome by using trough-level CyA measurements (C0) and the 2-h postdose levels (C2). Twenty-two p...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2009.00838.x
更新日期:2010-03-01 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
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1983.tb04156.x
更新日期:1983-02-01 00:00:00
abstract::The rotary blood pump will be an implantable left ventricular assist device (LVAD) in the near future. However, the best control method and the interrelationship between the rotary blood pump and native heart functions are unclear. An estimation was made of the native heart cardiac output from the change of an LVAD's ...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1046/j.1525-1594.1998.06127.x
更新日期:1998-05-01 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
pub_type: 杂志文章
doi:10.1111/aor.13636
更新日期:2020-06-01 00:00:00
abstract::Clinically, the percutaneous transcatheter aortic valve (TAV) has been reported to be deformed in a noncircular configuration after its implant. The deformation is universal and various, and it leads to serious leakage and durability problems. Even in the same deformation, the leaflets made in different tissue thickne...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.12833
更新日期:2017-08-01 00:00:00
abstract::Bone marrow mesenchymal stem cells (MSCs) have demonstrated their pluripotency to differentiate into different cell lineages and may be an alternative cell source for vascular tissue engineering. The objective of this study is to create small diameter vessels by seeding and culture of genetically modified MSCs onto a ...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2006.00322.x
更新日期:2006-12-01 00:00:00
abstract::In cardiac surgeries, it is frequently necessary to make the external blood circulation and oxygenation artificially. This procedure is called extracorporeal circulation (EC) or heart-lung bypass. During EC, one of the most important parameters, which demands continuous monitoring, is the blood flow. In many cases, th...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1046/j.1525-1594.2000.06532.x
更新日期:2000-03-01 00:00:00
abstract::For the development of a totally implantable ventricular assist system (VAS), we have been developing the vibrating flow pump (VFP), which can generate oscillated blood flow with a relative high frequency (10-50 Hz) for a totally implantable system. In this study, the effects of left ventricular assistance with this u...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1046/j.1525-1594.1999.06288.x
更新日期:1999-01-01 00:00:00
abstract::The generation of anaphylatoxins, particularly C5a, is important in extracorporeal circulation therapies such as granulocyte/monocyte apheresis, which activates the complement system and elevates C5a levels. However, no side effects of granulocyte/monocyte apheresis using cellulose acetate beads have been reported. To...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2009.00995.x
更新日期:2010-12-01 00:00:00
abstract::The Symbion Acute Ventricular Assist Device (AVAD) System is an experimental paracorporeal pulsatile ventricular assist device (VAD) for single or biventricular assist. Eleven patients were implanted but 2 died within 24 h and were excluded from the study. Nine patients, four with left ventricular assist devices (LVAD...
journal_title:Artificial organs
pub_type: 临床试验,杂志文章
doi:10.1111/j.1525-1594.1989.tb01575.x
更新日期:1989-12-01 00:00:00
abstract::Few instruments are currently available to test mitral valve function in an ex vivo state due to the technical difficulties involved. To investigate the native ex vivo mitral valve or prosthetic mitral valve with chordae, we developed a mitral valve adapter with an annulus suturing portion and 2 papillary muscle sutur...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1046/j.1525-1594.1999.06293.x
更新日期:1999-10-01 00:00:00
abstract::By using high speed gel filtration combined with ion exchange gradient elution chromatography, the concentrations of plasma (p) middle molecules (MM) were determined in 126 samples from 90 non-dialyzed azotemic patients and in 210 pre-dialysis samples from 53 regular hemodialysis and 24 intermittent peritoneal dialysi...
journal_title:Artificial organs
pub_type: 杂志文章
doi:
更新日期:1981-01-01 00:00:00
abstract::The implementation of simultaneous mechanical cavopulmonary assistance having blood pumps located in both of the vena cavae is investigated as an approach to treating patients with an ailing Fontan physiology. Identical intravascular blood pumps are employed to model the hemodynamic support of a patient-specific Fonta...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.12039
更新日期:2013-06-01 00:00:00
abstract::Many types of rotary blood pumps and pump control methods have recently been developed with the goal of clinical use. From experiments, we know that pump flow spontaneously increases during exercise without changing pump control parameters. The purpose of this study was to determine the hemodynamics associated with th...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1046/j.1525-1594.1999.06426.x
更新日期:1999-08-01 00:00:00
abstract::The accurate representation of rotary blood pumps in a numerical environment is important for meaningful investigation of pump-cardiovascular system interactions. Although numerous models for ventricular assist devices (VADs) have been developed, modeling methods for rotary total artificial hearts (rTAHs) are still re...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.12142
更新日期:2014-03-01 00:00:00
abstract::Small-caliber decellularized xenografts with surface heparin coating are known to reduce in vivo thrombogenicity. This study was performed to examine whether heparin coating on the small-caliber decellularized xenografts would reduce macrophage infiltration and intimal hyperplasia. In a rabbit model of bilateral carot...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2009.00748.x
更新日期:2009-06-01 00:00:00
abstract::In total, 30 patients suffering from familial hypercholesterolemia, resistant to diet and lipid-lowering drugs, were treated for up to 6 years (3.6 + or - 1.6; range, 0.2-6.8 years) with low-density lipoprotein (LDL) apheresis. Three different systems were used; the dextran sulfate adsorption system (Kaneka) for 27 of...
journal_title:Artificial organs
pub_type: 临床试验,杂志文章
doi:10.1111/j.1525-1594.1996.tb04455.x
更新日期:1996-04-01 00:00:00
abstract::We treated 12 patients with rheumatoid arthritis by filtration leukocytapheresis (FLCP) and evaluated its effect on leukocyte enzyme activities. We calculated the number of leukocytes removed and assessed the clinical response. We also evaluated the cellular enzyme activities of elastase and dipeptidylpeptidase IV (DP...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1046/j.1525-1594.2002.06834.x
更新日期:2002-04-01 00:00:00
abstract::The objectives of this study were: (i) to evaluate the effects of perfusion modes (pulsatile vs. nonpulsatile) on vital organs recovery and (ii) to investigate the influences of two different perfusion modes on the homeostasis of thyroid hormones in pediatric patients undergoing cardiopulmonary bypass (CPB) procedures...
journal_title:Artificial organs
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1525-1594.2010.01159.x
更新日期:2010-11-01 00:00:00
abstract::A relative contraindication to intermittent peritoneal dialysis (IPD) is chronic lung disease. To evaluate whether the instillation of 2 L of fluid into the peritoneal cavity affects respiratory function, five IPD patients were studied in the supine position during the first 4 h of a routine IPD session. Blood gas ten...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.1988.tb02768.x
更新日期:1988-06-01 00:00:00
abstract::The microsystems based visual prosthesis (MiViP) visual prosthesis generates visual perceptions well below safety and stimulator saturation limits. These perceptions, called phosphenes, are of reasonably small size and are broadly distributed in the visual field. They can thus be used to convey useful visual informati...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1046/j.1525-1594.2002.06939.x
更新日期:2002-03-01 00:00:00
abstract::The polymer poly(ε-caprolactone) (PCL) has been used in the biomaterial field for its relatively inexpensive price and suitability for modification. Also, its chemical and biological properties are desirable for biomedical applications. The electrospinning process has been used for producing polymer fibers of PCL due ...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/aor.13713
更新日期:2020-08-01 00:00:00
abstract::To overcome the weak mechanical properties of cell/hydrogel composites, a poly(DL-lactic-co-glycolic acid) sandwiched adipose-derived stem cell (ADSC)/fibrin construct was fabricated using a step-by-step mold/extraction method to generate the middle smooth muscle layer of natural blood vessels. A pulse bioreactor with...
journal_title:Artificial organs
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2010.01137.x
更新日期:2011-06-01 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
pub_type: 杂志文章
doi:10.1111/j.1525-1594.2007.00350.x
更新日期:2007-02-01 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
pub_type: 杂志文章
doi:10.1111/aor.13836
更新日期:2020-10-01 00:00:00