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

journal
https://www.readbyqxmd.com/read/28422817/incidence-and-implications-of-left-ventricular-distention-during-venoarterial-extracorporeal-membrane-oxygenation-support
#1
Lauren K Truby, Koji Takeda, Christine Mauro, Melana Yuzefpolskaya, Arthur R Garan, Ajay J Kirtane, Veli Topkara, Darryl Abrams, Daniel Brodie, Paolo C Colombo, Yoshifumi Naka, Hiroo Takayama
Left ventricular distention (LVD) during venoarterial extracorporeal membrane oxygenation (VA-ECMO) support is increasingly recognized but seldom reported in the literature. The present study defined LVD as not present (LVD-); subclinical (LVD+, evidence of pulmonary edema on chest radiograph AND pulmonary artery diastolic blood pressure greater than 25 mmHg within the first 2 hours of ICU admission); or clinical (LVD++, need for decompression of the left ventricle immediately following VA-ECMO initiation)...
April 12, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28402990/the-use-of-gmp-produced-bone-marrow-derived-stem-cells-in-combination-with-extra-corporeal-membrane-oxygenation-in-ards-an-animal-model
#2
Ergin Kocyildirim, Nayra Cárdenes, Antony Ting, Eder Cáceres, Christian Bermúdez, Mauricio Rojas
RDS is the result of a wide variety of disorders, which can be associated with different clinical disorders or systemic diseases directly affecting the lungs. Currently, the only existing therapy is limited to supportive care. In a 6-hour pilot study, we analyzed the use of the combination of both stem cell and ECMO strategies to prevent or treat severe lung injury. A total of 11 sheep were used. 5 sheep received E. coli endotoxin as a control group (Group 1). 3 sheep that received E. coli endotoxin were treated with veno-venous ECMO support in Group 2...
April 11, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28394817/comparative-bone-regeneration-potential-studies-of-collagen-heparin-and-polydopamine-coated-multichannelled-bcp-granules
#3
Gun Hee Lee, Preeti Makkar, Kallyanshis Paul, Byong Taek Lee
The present work is a comparative assessment of the bone regeneration potentiality of bone substitutes comprised of bioactive polymer coated biphasic calcium phosphate (BCP) granules. The bone substitutes were primarily composed of multichanneled BCP granules which were coated separately with biochemical polymer coatings, namely collagen, heparin or polydopamine, using chemical methods. The morphological features and chemical structure of the granules and surface coatings were characterized by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) respectively...
April 6, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28394816/brain-mri-findings-in-pediatric-patients-post-ecmo
#4
Venessa L Pinto, Sumit Pruthi, Ashly C Westrick, Chevis N Shannon, Brian C Bridges, Truc M Le
Neurologic complications can occur with ECMO due to several factors. Prior studies identified neonates as having unique risk factors and neuro-imaging findings post-ECMO. The aim of this study is to describe brain MRI findings of pediatric patients treated with ECMO. We conducted a retrospective study of non-neonatal pediatric patients who underwent a comprehensive brain MRI after ECMO, between January 2000 and July 2015. We identified 47 pediatric patients in the study cohort with a median age of 8 months (IQR 3-170mo) and a median ECMO run duration of 7...
April 6, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28394815/normothermic-ex-vivo-heart-perfusion-effects-of-live-animal-blood-and-plasma-cross-circulation
#5
Joseph T Church, Fares Alghanem, Kristopher B Deatrick, John M Trahanas, Joseph P Phillips, Min Hee Song, Elena M Perkins, Robert H Bartlett, Alvaro Rojas-Pena, Martin L Bocks, Gabe E Owens
Prolonged normothermic ex-vivo heart perfusion (NEVHP) could transform cardiac transplantation. To help identify perfusate components that might enable long-term perfusion, we evaluated the effects of cross-circulated whole blood and cross-circulated plasma from a live paracorporeal animal on donor porcine hearts preserved via NEVHP. Standard perfusion (n=40) utilized red blood cell/plasma perfusate and Langendorf technique for a goal of 12 hours. Cross-circulation groups used a similar circuit with the addition of cross-circulated venous whole blood (XC-Blood; n=6) or cross-circulated filtered plasma (XC-Plasma; n=7) between a live paracorporeal pig under anesthesia and the perfusate reservoir...
April 6, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28394814/percutaneous-mechanical-circulatory-support-using-impella%C3%A2-devices-for-decompensated-cardiogenic-shock-a-pediatric-heart-center-experience
#6
Dhaval Parekh, Aamir Jeewa, Sebastian C Tume, William J Dreyer, Ricardo Pignatelli, David Horne, Henri Justino, Athar M Qureshi
Cardiogenic shock remains a significant cause of mortality and morbidity in children with heart failure. Percutaneous mechanical circulatory support may be an additional tool to augment left heart support and decompression in addition to conventional therapies. This report aims to review the clinical and hemodynamic outcomes of the Impella® device at a pediatric center. A retrospective review of all implants between October 2014 and November 2016 was conducted. Clinical outcomes, device implant techniques, complications, and hemodynamic data were collected...
April 6, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28338480/the-challenges-in-predicting-ecmo-survival-and-a-path-forward
#7
Marco Huesch, Christopher Brehm
Extracorporeal membrane oxygenation (ECMO) support is a life-saving but complex technique for patients suffering from severe cardiac and/or pulmonary dysfunction. Increasingly greater utilization in the last 15 years means that a suite of mortality risk analytics is both feasible for researchers and required by clinicians, patients, administrators and insurers. We argue that to date, research into such risk analytics has been insufficient and does not adequately reflect the various indications and configurations of ECLS...
March 22, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28338479/a-moment-in-history-the-origins-of-continuous-renal-replacement-therapy
#8
Robert H Bartlett
Peter Kramer's presentation at the 1982 ASAIO meeting was the inspiration that led to continuous renal replacement therapy in intensive care.
March 22, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28338478/like-two-peas-in-a-pod-heart-failure-and-atrial-fibrillation
#9
Levent Cerit
No abstract text is available yet for this article.
March 22, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28338477/osmotic-and-hemodynamic-effects-of-hypertonic-glucose-during-hemodialysis
#10
Daniel Schneditz, Stanisław Niemczyk, Notburga Sauseng, Isolde Bachler, Edda Zierler, Helmut Karl Lackner, Hildegard Hafner-Giessauf
It was the purpose to quantify the hemodynamic effects of a bolus of hypertonic glucose injected into the extracorporeal system in a group of stable and non-diabetic patients during hemodialysis (HD).Glucose and electrolytes were measured in frequent intervals. Arterial blood pressures and heart rates were continuously recorded by non-invasive vascular unloading technique. Beat-to-beat stroke volume, cardiac output, and total peripheral resistance were determined by Modelflow method. Relative blood volumes were continuously measured by ultrasonic and optical means...
March 22, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28328556/chronological-changes-and-correlates-of-loop-diuretic-dose-in-left-ventricular-assist-device-patients
#11
Kazuhiko Kido, Bennet George, Richard J Charnigo, Tracy E Macaulay, Sara D Brouse, Maya Guglin
No study has systematically evaluated the prevalence and dosages of diuretic use for patients after left ventricular assist device (LVAD) implantation. The primary objective was to characterize chronological change in prevalence and doses of loop diuretics after LVAD placement. The secondary objective was to identify correlates of actual doses of loop diuretics. We retrospectively reviewed medical records of adult patients with LVAD implantation at the University of Kentucky. Prevalence of diuretic use and furosemide equivalent dose were assessed before LVAD implantation and at seven time points thereafter: 1 week, 1 month, 3 months, 6 months, 1 year, 18 months, and 2 years...
March 20, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28328555/association-of-pediatric-cardiac-surgical-volume-and-mortality-after-cardiac-ecmo
#12
Cindy S Barrett, Titus T Chan, Jacob Wilkes, Susan L Bratton, Ravi R Thiagarajan
Centers with higher surgical and ECMO volume have improved survival for children undergoing pediatric cardiac surgery and ECMO respectively. We examined the relationship between both cardiac surgical and cardiac ECMO volumes, with survival. Using data from the Pediatric Health Information System, we reviewed patients who underwent ECMO during the hospitalization for cardiac surgery or heart transplantation from January 2003- June 2014. Among 106,967 patients in 43 centers undergoing a Risk Adjustment for Congenital Heart Surgery-1 (RACHS) 1-6 procedure (n =104,951) and/or cardiac transplantation (n=2016), 2...
March 20, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28328554/the-effect-of-inlet-cannula-length-on-the-intraventricular-flow-field-an-in-vitro-flow-visualization-study-using-the-evaheart-lvad
#13
Karen May-Newman, Juyeun Moon, Varsha Ramesh, Ricardo Montes, Josue Campos, Brian Herold, Paul Isingoma, Tadashi Motomura, Robert Benkowski
LVAD inflow cannula malposition is a significant risk for pump thrombosis. Thrombus development is influenced by altered flow dynamics, such as stasis or high shear that promote coagulation. The goal of this study was to measure the intraventricular flow field surrounding the apical inflow cannula of the Evaheart centrifugal LVAD, and assess flow stasis, vortex structures and pulsatility for a range of cannula insertion depths and support conditions. Experimental studies were performed using a mock loop with a customized silicone left ventricle (LV) and the Evaheart LVAD...
March 20, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28319524/combined-therapy-of-ventricular-assist-device-and-extracorporeal-membrane-oxygenation-for-profound-acute-cardiopulmonary-failure
#14
Kevin Fujita, Koji Takeda, Boyganzi Li, Christine Mauro, Paul Kurlansky, Sowmyashree Sreekanth, Jiho Han, Lauren K Truby, Reshad Garan, Veli Topkara, Melana Yuzefpolskaya, Paolo Colombo, Yoshifumi Naka, Hiroo Takayama
Short-term ventricular assist devices (ST-VAD) have been effective in treating patients with refractory cardiogenic shock. Membrane oxygenators (MO) can be added to the circuit for concomitant profound refractory hypoxia. This study reports outcomes of combined therapy in this portion of patients. This is a retrospective review of 166 patients who received an ST-biventricular assist device (BiVAD) or right ventricular assist device (RVAD) for cardiogenic shock between November 2007 and November 2014. An MO was added to the RVAD for profound hypoxia refractory to maximized ventilation...
March 17, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28319523/plasma-levels-of-microrna-155-are-upregulated-with-long-term-left-ventricular-assist-device-support
#15
Teresa Wang, Emily C OʼBrien, Joseph G Rogers, Daniel L Jacoby, Michael E Chen, Jeffrey M Testani, Dawn E Bowles, Carmelo A Milano, G Michael Felker, Chetan B Patel, Pramod N Bonde, Tariq Ahmad
Left ventricular assist device (LVAD) therapy unloads the failing heart but exposes the human body to unique pathophysiological demands such as continuous blood-flow and complete univentricular support, which are associated with increased risk of adverse clinical outcomes. MiRNAs are 22-23 nucleotide RNAs involved in regulation of multiple biological processes including the pathogenesis of heart failure (HF). Thus, measurement of miRNAs may have potential in both diagnostics as circulating biomarkers, and in therapeutics for targeted interventions...
March 17, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28319522/a-numerical-simulation-comparing-a-cavopulmonary-assist-device-and-va-ecmo-for-failing-fontan-support
#16
Po-Lin Hsu, Dongfang Wang, Cherry Ballard-Croft, Dawei Xiao, Joseph B Zwischenberger
A cavopulmonary assist device (CPAD) has been developed for failing Fontan support. This CPAD pumps blood from superior/inferior vena cavae to pulmonary artery. In this study, we compared failing Fontan support with CPAD versus VA ECMO in silico. A numerical lumped-parameter circulatory system model was used to simulate Fontan circulation. Failing Fontan was simulated by increased pulmonary resistance. Central venous pressure (CVP), mean pulmonary arterial pressure (mPAP), left atrial pressure (LAP), and univentricular outflow (CO) were simulated and compared to published clinical data...
March 17, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28319521/warfarin-and-aspirin-versus-warfarin-alone-for-prevention-of-embolic-events-in-patients-with-a-heartmate-ii%C3%A2-left-ventricular-assist-device
#17
Joseph S Van Tuyl, Ian B Hollis, Khalid A Alburikan, Richard Tran, Brian P Murray, Jo E Rodgers, Jason N Katz, Brett C Sheridan
Acquired von Willebrand disease increases bleeding risk in patients implanted with a continuous-flow left ventricular assist device. Lower aspirin doses decrease the risk of bleeding without an increased risk of embolic events. No published studies in the U.S. have compared the incidence of bleeding and thrombotic events between antithrombotic regimens with and without aspirin. A single-center, retrospective analysis was conducted of adult patients implanted with a HM II. Patients received warfarin and aspirin 81 mg daily or warfarin alone...
March 17, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28319520/infections-in-patients-with-a-total-artificial-heart-are-common-but-rarely-fatal
#18
Luis F Hidalgo, Keyur B Shah, Richard H Cooke, Daniel G Tang, Vigneshwar Kasirajan, Howard A Cooper, Wilbert S Aronow
Patients who received a total artificial heart (TAH) at Virginia Commonwealth University (VCU) between January 1, 2010 and December 31, 2011 were identified from the VCU Mechanical Circulatory Support Clinical Database. Retrospective data extraction from the medical records was performed from the time of TAH implantation until heart transplantation or death. Infections were classified as confirmed or suspected. Twenty-seven men and 5 women, mean age 49.5 years (range 24 to 68 years) received a TAH. The mean duration of TAH support was 225 days (range 1 to 1334 days)...
March 17, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28323665/desmopressin-use-in-refractory-gastrointestinal-bleeding-in-lvad-patient
#19
Grigoriy E Gurvits
No abstract text is available yet for this article.
March 16, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28323664/reply-to-gurvits-regarding-desmopressin-use-in-refractory-gastrointestinal-bleeding-in-lvad-patient
#20
Ian B Hollis, Sheh-Li Chen, Patricia P Chang, Jason N Katz
No abstract text is available yet for this article.
March 16, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
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