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ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs

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https://www.readbyqxmd.com/read/28806183/taking-your-ecmo-with-you-continued-progress-toward-an-ambulatory-goal
#1
Christina S Jenkins, Victor van Berkel
No abstract text is available yet for this article.
August 9, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28799952/moving-from-pre-ecmo-ventilation-to-post-ecmo-ventilation-and-mortality
#2
Ravi S Tripathi
No abstract text is available yet for this article.
August 8, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28799951/surface-engineered-blood-adsorption-device-for-hyperphosphatemia-treatment
#3
Quan Shi, Michael Jolly, Marian G Mccord, Melanie S Joy
Correspondence: Melanie S. Joy, PharmD, PhD, University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences, Department of Pharmaceutical Sciences, Mail Stop C238, Room V20-4108, 12850 East Montview Blvd, Aurora, CO 80045. Email: Melanie.Joy@ucdenver.eduThe research employed surface engineering methods to develop, optimize, and characterize a novel textile-based hemoadsorption device for hyperphosphatemia in hemodialysis-dependent end-stage kidney disease. Phosphate adsorbent fabrics (PAFs) were prepared by thermopressing alumina powders to polyester filtration fabrics and treatment with trimesic acid (TMA)...
August 8, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28799950/orthostatic-hypotension-in-patients-with-left-ventricular-assist-devices-acquired-autonomic-dysfunction
#4
Marat Fudim, Joseph G Rogers, Camille Frazier-Mills, Chetan B Patel
Contemporary left ventricular assist device (LVAD) technology uses nonphysiologic continuous flow to deliver blood into the circulation. This results in a reduction of pulsatility, which is implicated in some of the commonly associated side effects with LVAD therapy, including hypertension and gastrointestinal arterial-venous malformation with related bleeding. A less frequently observed side effect is orthostatic hypotension (OH) in patients supported with LVAD therapy. We present three cases of OH in patients with LVAD, followed by a discussion on how LVAD therapy may induce autonomic dysfunction...
August 8, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28777138/high-serum-bilirubin-levels-nt-pro-bnp-and-lactate-predict-mortality-in-long-term-severely-ill-respiratory-extracorporeal-membrane-oxygenation-patients
#5
Franziska Kaestner, Daniel Rapp, Franziska C Trudzinski, Nicole Olewczynska, Stefan Wagenpfeil, Frank Langer, Monika Flaig, Heinrike Wilkens, Robert Bals, Matthias Klingele, Christian Lensch, Sebastian Fähndrich, Philipp M Lepper
Mortality in patients treated with extracorporeal membrane oxygenation (ECMO) is high. Therefore, it is crucial to better understand conditions that are associated with mortality in ECMO patients. In this retrospective analysis, we observed 51 patients treated with high-flow ECMO in 2013 and 2014 at our center. We recorded laboratory values and intensive care procedures. The hypothesis of bilirubin being a predictor of mortality during ECMO treatment was initially addressed. Therefore, laboratory values were obtained before initiation and at the time of highest bilirubin throughout the procedure...
August 2, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28777137/natural-compounds-for-skin-tissue-engineering-by-electrospinning-of-nylon-beta-vulgaris
#6
Parviz Ranjbarvan, Matin Mahmoudifard, Mousa Kehtari, Ali Babaie, Shokoh Hamedi, Samaneh Mirzaei, Masoud Soleimani, Simzar Hosseinzadeh
Natural compounds containing polysaccharide ingredients have been employed as candidates for treatment of skin tissue. Herein, for the first time, electrospinning setup was proposed to fabricate an efficient composite nanofibrous structure of Beta vulgaris (obtained from Beet [Chenopodiaceae or Amaranthaceae]) belonged to polysaccharides and an elastic polymer named nylon 66 for skin tissue engineering. Both prepared scaffolds including noncomposite and composite types were studied by Scanning electron microscope (SEM), FTIR spectroscopy, mechanical assay, and contact angle...
August 2, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28777136/incidence-and-impact-of-on-cardiopulmonary-bypass-vasoplegia-during-heart-transplantation
#7
Lauren K Truby, Koji Takeda, Maryjane Farr, James Beck, Melana Yuzefpolskaya, Paolo C Colombo, Veli Tokpara, Donna Mancini, Yoshifumi Naka, Hiroo Takayama
Despite significant advances in the medical management of heart transplant (HT) recipients, perioperative complications, including vasoplegia, remain a significant contributor to morbidity and mortality. This is a retrospective review of patients who received HT at our institution between 2012 and 2015. Mean systemic vascular resistance (SVR) was calculated during the bypass run. Vasoplegia was defined as a mean SVR <800 dynes s/cm despite a high pressor requirement (>1,500 μg neosynephrine bolused)...
August 2, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28777135/hematologic-disorders-in-children-with-continuous-renal-replacement-therapies
#8
Celia Fabra, Sara Infante, Isabel Miras, Susana Pretus, María José Santiago, Sarah N Fernández, Jesús López-Herce
The objective of this study was to analyze hematologic disorders, coagulation disorders, and transfusion requirements in children with continuous renal replacement therapies (CRRT). This is a retrospective analysis of a prospectively collected database of children receiving CRRT between 2010 and 2015. Patient characteristics, CRRT parameters, hematologic and coagulation parameters, and need for transfusions were recorded and analyzed. We compared patients after heart surgery and noncardiac patients, those requiring extracorporeal membrane oxygenation (ECMO) and those without ECMO, and patients with different anticoagulation therapies: heparin and citrate...
August 1, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28777134/retrospective-analysis-of-transcranial-doppler-patterns-in-veno-arterial-extracorporeal-membrane-oxygenation-patients-feasibility-of-cerebral-circulatory-arrest-diagnosis
#9
Marinella Marinoni, Giovanni Cianchi, Sara Trapani, Maria L Migliaccio, Manuela Bonizzoli, Letizia Gucci, Antonella Cramaro, Andrea Gallerini, Fabio Picciafuochi, Serafina Valente, Adriano Peris
Transcranial Doppler (TCD) is able to detect cerebral hemodynamic changes in real-time. Impairment of cerebral blood flow during veno-arterial (VA) extracorporeal membrane oxygenation (ECMO) treatment is referred to in the literature. Several cerebrovascular complications can affect VA ECMO patients, eventually leading to brain death (BD). Transcranial Doppler is a worldwide accepted technique for cerebral circulatory arrest (CCA) diagnosis for BD confirmation, and in Italy, it is mandatory in certain clinical conditions...
August 1, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28746083/novel-cardiac-coordinate-modeling-system-for-three-dimensional-quantification-of-inflow-cannula-malposition-of-heartmate-ii-lvads
#10
Brian Lima, Onur Dur, Joyce Chuang, Themistokles Chamogeorgakis, David J Farrar, Kartik S Sundareswaran, Joost Felius, Susan M Joseph, Shelley A Hall, Gonzalo V Gonzalez-Stawinski
Optimal function of left ventricular assist devices (LVADs) depends on proper alignment of the inflow cannula (IC). Quantitative guidelines for IC angulation are lacking because of variation in cardiac geometry and difficulty in analyzing three-dimensional (3D) cannula orientation relative to the left ventricle (LV). Based on contrast-enhanced computed tomography images from five normal and five clinically malpositioned IC cases in patients with HeartMate II LVADs, we developed a method for 3D quantification of IC malpositioning...
July 25, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28746082/heartware-ventricular-assist-device-as-a-bridge-to-transplant-in-a-small-boy-with-complicated-kawasaki-disease
#11
Christopher E Mascio, Dhananjay P Malankar, Jonathan J Rome
We report a case of HeartWare ventricular assist device (HVAD) implant as a Bridge-to-Transplant in the smallest and the youngest known patient, a 32-month-old boy (body surface area of 0.66 m2) with known Kawasaki disease and giant coronary artery aneurysms. The disease course was complicated by coronary thromboembolism resulting in acute myocardial infarction, ventricular fibrillation, and cardiac arrest. After short-term support with extracorporeal membrane oxygenation for 7 days and long-term support with an HVAD for 5 months, he underwent heart transplantation and is doing well 2 months after the transplant...
July 25, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28746081/synergism-of-electrospun-nanofibers-and-pulsed-electromagnetic-field-on-osteogenic-differentiation-of-induced-pluripotent-stem-cells
#12
Abdolreza Ardeshirylajimi, Arash Khojasteh
According to the current therapies failure for bone fractures and lesions, tissue engineering showed a great potential to help solve these challenges. Because the use of growth factors is very limited in the clinic, it could be very useful that could be introducing an alternative to it. Extremely low frequency pulsed electromagnetic fields (PEMF, 1 mT, 50 Hz) were used for achieving this aim. The PEMF potential in combination with electrospun polycaprolactone (PCL) nanofibers was used to investigate the osteogenic potential of human induced pluripotent stem cells (iPSCs)...
July 25, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28746080/determination-of-optimal-coronary-flow-for-the-preservation-of-donation-after-circulatory-death-in-murine-heart-model
#13
Mohammed Quader, Stefano Toldo, Juan Torrado, Suraj Mishra, Adolfo G Mauro, Eleonora Mezzaroma, Reichstetter Heather, Antonio Abbate, Vigneshwar Kasirajan, Martin Mangino
Donation after circulatory death donors (DCD) have the potential to increase the number of heart transplants. The DCD hearts undergo an extended period of warm ischemia, which mandates the use of machine perfusion preservation if they are to be successfully recovered for transplantation. Because the minimum coronary artery flow needed to meet the basal oxygen demand (DCRIT) of a DCD heart during machine perfusion preservation is critical and yet unknown, we studied this in a DCD rat heart model. Adult male rats were anesthetized, intubated, heparinized, and paralyzed with vecuronium...
July 25, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28742533/stripassay-genotyping-for-the-prediction-of-the-graft-relative-risk
#14
Mohamed S A Mohamed
No abstract text is available yet for this article.
July 24, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28742532/pulmonary-pressure-assessment-with-the-total-artificial-heart
#15
David L Joyce, Margaret M Redfield, Sudhir S Kushwaha, Atta Behfar, Barry A Borlaug, Richard C Daly, Gurpreet S Sandhu, Lyle D Joyce
Reversal of pulmonary hypertension has been observed in patients during a bridge to transplant with a left ventricular assist device. Total artificial heart (TAH) implant prevents subsequent right heart catheterization. Consequently, controversy exists over whether the prosthetic right ventricle improves or exacerbates pulmonary hypertension. A pulmonary artery (PA) pressure monitor was placed in two patients undergoing TAH implant, as a bridge to transplant. One patient had pulmonary hypertension at implant; the other had normal pulmonary pressures...
July 24, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28742531/variable-volume-kinetic-model-to-estimate-absolute-blood-volume-in-patients-on-dialysis-using-dialysate-dilution
#16
Hamed Samandari, Daniel Schneditz, Michael J Germain, Joseph Horowitz, Christopher V Hollot, Yossi Chait
Long- and short-term adverse outcomes in hemodialysis (HD) have been associated with intradialytic hypotension, a common HD complication and significant cause of morbidity. It has been suggested that knowledge of absolute blood volume (ABV) could be used to significantly improve treatment outcomes. Different dilution-based protocols have been proposed for estimating ABV, all relying on the classic mono-exponential back-extrapolation algorithm (BEXP). In this paper, we introduce a dialysate dilution protocol and an estimation algorithm based on a variable-volume, two-compartment, intravascular blood water content kinetic model (VVKM)...
July 24, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28719441/fourteen-day-in-vivo-testing-of-a-compliant-thoracic-artificial-lung
#17
David J Skoog, Joshua R Pohlmann, David S Demos, Christopher N Scipione, Amit Iyengar, Rebecca E Schewe, Ahmed B Suhaib, Kelly L Koch, Keith E Cook
The compliant thoracic artificial lung (cTAL) has been studied in acute in vivo and in vitro experiments. The cTAL's long-term function and potential use as a bridge to lung transplantation are assessed presently. The cTAL without anticoagulant coatings was attached to sheep (n = 5) via the pulmonary artery and left atrium for 14 days. Systemic heparin anticoagulation was used. Compliant thoracic artificial lung resistance, cTAL gas exchange, hematologic parameters, and organ function were recorded. Two sheep were euthanized for nondevice-related issues...
July 14, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28692527/sildenafil-in-left-ventricular-assist-device-is-safe-and-well-tolerated
#18
Ashwin K Ravichandran, Shane J LaRue, Eric Novak, Susan A Joseph, Joel D Schilling
Right heart failure is a potentially devastating complication of mechanical circulatory support, occurring at a rate of 0.49 events per 100 patient-months. Pulmonary vasodilators such as phosphodiesterase-5 inhibitors (PDE5i) have been frequently used to unload the right ventricle in left ventricular assist device (LVAD) patients, but there is scant evidence to support this practice. The purpose of this analysis is to provide additional data regarding the safety and efficacy of the PDE5i sildenafil in a real world population of patients supported with LVADs at Washington University in St...
July 7, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28692526/preoperative-nutritional-assessment-with-the-prognostic-nutrition-index-in-patients-undergoing-left-ventricular-assist-device-implantation
#19
Gardner Yost, Antone Tatooles, Geetha Bhat
The prognostic nutritional index (PNI) is a simple metric that uses serum albumin and total lymphocyte count to provide a basic indicator for nutritional status. It has recently garnered attention as a prognosticator of outcomes in many types of cancer. We investigated the utility of the PNI as a marker for poor outcomes following left ventricular assist device (LVAD) implantation. Two hundred eighty-eight consecutive patients implanted with continuous-flow LVADs were included. Prognostic nutritional index was calculated for all patients (PNI = [10 × serum albumin {g/dl}] + [0...
July 7, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28682992/connection-of-a-renal-replacement-therapy-or-plasmapheresis-device-to-the-ecmo-circuit
#20
Florent Laverdure, Laurent Masson, Guillaume Tachon, Julien Guihaire, François Stephan
In patients under extracorporeal membrane oxygenation (ECMO) support requiring renal replacement therapy or plasmapheresis, connecting such extracorporeal therapy device to the ECMO circuit provides many advantages compared with central venous catheterization. However, high pressures of the ECMO circuit limit the usefulness of this technique. We propose a new approach to connect extracorporeal therapy lines to the ECMO circuit. Inlet line is connected to the oxygenator, and outlet line is connected either to the femoral artery antegrade perfusion cannula in case of venoarterial ECMO or to the lateral vent of the return cannula in case of venovenous ECMO...
July 4, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
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