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https://www.readbyqxmd.com/read/29045747/extracorporeal-membrane-oxygenation-support-for-right-ventricular-failure-after-left-ventricular-assist-device-implantation
#1
Julia Riebandt, Thomas Haberl, Dominik Wiedemann, R Moayedifar, Thomas Schloeglhofer, Stéphane Mahr, Kamen Dimitrov, Philipp Angleitner, Guenther Laufer, Daniel Zimpfer
OBJECTIVES: Right ventricular (RV) failure complicating left ventricular assist device implantation is associated with increased mortality. Despite a lack of supporting evidence, venoarterial extracorporeal membrane oxygenation (ECMO) support is increasingly being used as an alternative to traditional temporary RV support. We report our institutional experience with ECMO-facilitated RV support after left ventricular assist device implantation. METHODS: We retrospectively reviewed the concept of temporary ECMO support for perioperative RV failure in 32 consecutive left ventricular assist device (mean age 52 ± 14 years; male 84...
October 16, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29045467/the-dose-of-hydroxyethyl-starch-6-130-0-4-for-fluid-therapy-and-the-incidence-of-acute-kidney-injury-after-cardiac-surgery-a-retrospective-matched-study
#2
Mona Momeni, Lompoli Nkoy Ena, Michel Van Dyck, Amine Matta, David Kahn, Dominique Thiry, André Grégoire, Christine Watremez
The safety of hydroxyethyl starches (HES) is still under debate. No studies have compared different dosing regimens of HES in cardiac surgery. We analyzed whether the incidence of Acute Kidney Injury (AKI) differed taking into account a weight-adjusted cumulative dose of HES 6% 130/0.4 for perioperative fluid therapy. This retrospective cohort study included all adult patients undergoing elective or emergency cardiac surgery with or without cardiopulmonary bypass. Exclusion criteria were patients on renal replacement therapy (RRT), cardiac trauma surgery, heart transplantation, patients with ventricular assist devices, subjects who required a surgical revision for bleeding and those whose medical records were incomplete...
2017: PloS One
https://www.readbyqxmd.com/read/29045282/prediction-model-for-wait-times-in-cardiac-transplantation
#3
David L Joyce, Brian D Lahr, Lyle D Joyce, Sudhir S Kushwaha, Richard C Daly
Wait times have increased for patients approved for heart transplants. We reviewed United Network for Organ Sharing (UNOS) data for 14,242 patients listed for isolated heart transplant (2009-2013) to develop a risk score model for timing left ventricular assist device (LVAD) implantation in bridge-to-transplant patients. We used a multivariable Cox proportional hazards regression model with subsequent bootstrap resampling for internal validation to develop a scoring system that combined risk factors, weighted by the corresponding regression coefficients, to define an individual's risk score...
October 18, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29045281/pharmacokinetics-of-amikacin-in-critical-care-patients-on-extracorporeal-device
#4
Jesus Ruiz-Ramos, Ricardo Gimeno, Francisca Pérez, Paula Ramirez, Esther Villarreal, Monica Gordon, Carlos Vicent, María Remedios Marqués, Álvaro Castellanos-Ortega
In this study, we evaluate the effect of extracorporeal membrane oxygenation (ECMO) and ventricular assist devices (Levitronix) on the pharmacokinetic of amikacin in critically ill patients. Twelve patients with ECMO and three with Levitronix devices who started treatment with amikacin were included. Amikacin pre (Cmax) and post (Cmin) dose serum concentrations were measured during the first 72-96 hours of treatment initiation. Pharmacokinetic parameters were performed by Bayesian adjustment. The median initial dose was 1,000 mg (range: 600-1,400 mg)...
October 18, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29045277/determinants-of-improvement-in-cardiopulmonary-exercise-testing-after-left-ventricular-assist-device-implantation
#5
Andrew N Rosenbaum, Shannon M Dunlay, Naveen L Pereira, Thomas G Allison, Simon Maltais, John M Stulak, Lyle D Joyce, Sudhir S Kushwaha
Although improvement in cardiac output and hemodynamic parameters is routinely demonstrated in patients implanted with continuous-flow left ventricular assist devices (CF-LVADs), improvement in exercise capacity is inconsistently seen. Our purpose was to determine whether native cardiac factors, LVAD factors, or comorbid factors were associated with lack of improvement. Review of all patients undergoing preimplant cardiopulmonary exercise testing (CPET) and CPET on LVAD therapy at one institution was performed between 2007 and 2014 (n = 49)...
October 18, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29044443/needs-for-mobility-devices-home-modifications-and-personal-assistance-among-canadians-with-disabilities
#6
Edward M Giesbrecht, Emma M Smith, W Ben Mortenson, William C Miller
BACKGROUND: People with disabilities often require assistive devices, modifications to their home environment, and physical assistance to facilitate mobility. This study examines self-reported met and unmet needs of people with disabilities who use wheeled mobility devices, compared with non-users. DATA AND METHODS: The 2012 Canadian Survey on Disability followed up with 45,442 individuals who reported a disability on the 2011 National Household Survey, and obtained a 75% response rate...
August 16, 2017: Health Reports
https://www.readbyqxmd.com/read/29043581/the-unique-blood-pressures-and-pulsatility-of-lvad-patients-current-challenges-and-future-opportunities
#7
REVIEW
Francesco Castagna, Eric J Stöhr, Alberto Pinsino, John R Cockcroft, Joshua Willey, A Reshad Garan, Veli K Topkara, Paolo C Colombo, Melana Yuzefpolskaya, Barry J McDonnell
An increasing number of end-stage heart failure patients are now implanted with continuous-flow left ventricular assist devices (CF-LVADs). Although this therapeutic approach is associated with improved clinical outcomes, continuous flow physiology reduces arterial pulse pressure and pulsatility to an extent that is unique to this population. Recent data suggest that high blood pressure (BP) contributes to life-threatening complications such as pump thrombosis and stroke of CF-LVAD patients. However, limited understanding of the distinct hemodynamics of these pumps makes measurement and, consequently, medical management of BP quite challenging...
October 18, 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/29043151/biobehavioral-assessment-of-the-anxiety-disorders-current-progress-and-future-directions
#8
REVIEW
Deah Abbott, Yasmin Shirali, J Kyle Haws, Caleb W Lack
It is difficult to accurately assess and differentially diagnose the anxiety disorders. The current system of assessment relies heavily on the subjective measures of client self-report, clinical observation, and clinical judgment. Fortunately, recent technological advances may enable practitioners to utilize objective, biobehavioral measures of assessment in a clinical setting. The current body of literature on two of these biobehavioral tools (eye-tracking and electrocardiogram devices) is promising, but more validation and standardization research is needed to maximize the utility of these devices...
September 22, 2017: World Journal of Psychiatry
https://www.readbyqxmd.com/read/29042831/the-impact-of-antithrombin-iii-use-in-achieving-anticoagulant-goals-in-pediatric-patients
#9
Allison J Jones, Keliana L O'Mara, Brian J Kelly, Ravi S Samraj
OBJECTIVES: To determine the percentage of patients with >10% reduction in heparin infusion rate within 48 hours of antithrombin III (ATIII) administration. Secondary objectives include the achievement of therapeutic anticoagulation and determining the days of subtherapeutic infusion prior to supplementation. METHODS: Retrospective chart review of 12 patients younger than 18 years of age who received ATIII concentrate supplementation while on continuous heparin infusion...
September 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/29042559/growth-mechanism-of-strongly-emitting-ch3nh3pbbr3-perovskite-nanocrystals-with-a-tunable-bandgap
#10
He Huang, Johannes Raith, Stephen V Kershaw, Sergii Kalytchuk, Ondrej Tomanec, Lihong Jing, Andrei S Susha, Radek Zboril, Andrey L Rogach
Metal halide perovskite nanocrystals are promising materials for a diverse range of applications, such as light-emitting devices and photodetectors. We demonstrate the bandgap tunability of strongly emitting CH3NH3PbBr3 nanocrystals synthesized at both room and elevated (60 °C) temperature through the variation of the precursor and ligand concentrations. We discuss in detail the role of two ligands, oleylamine and oleic acid, in terms of the coordination of the lead precursors and the nanocrystal surface...
October 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/29042342/reduction-in-fall-rate-in-dementia-managed-care-through-video-incident-review-pilot-study
#11
Eleonore Bayen, Julien Jacquemot, George Netscher, Pulkit Agrawal, Lynn Tabb Noyce, Alexandre Bayen
BACKGROUND: Falls of individuals with dementia are frequent, dangerous, and costly. Early detection and access to the history of a fall is crucial for efficient care and secondary prevention in cognitively impaired individuals. However, most falls remain unwitnessed events. Furthermore, understanding why and how a fall occurred is a challenge. Video capture and secure transmission of real-world falls thus stands as a promising assistive tool. OBJECTIVE: The objective of this study was to analyze how continuous video monitoring and review of falls of individuals with dementia can support better quality of care...
October 17, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/29042104/extending-the-perspective-on-left-ventricular-assist-device-pump-thrombosis-to-left-ventricular-assist-device-system-thrombosis
#12
EDITORIAL
Robert L Kormos
No abstract text is available yet for this article.
September 23, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29041106/design-of-a-broadband-reciprocal-optical-diode-in-a-silicon-waveguide-assisted-by-silver-surface-plasmonic-splitter
#13
Jing Li, Han Ye, Zhongyuan Yu, Yumin Liu
In this paper, we propose a new scheme for a reciprocal optical diode integrated in a multimode silicon waveguide. The compact 4μm long functional region consists of a tapered coupler, a narrow single-mode waveguide, and a half-elliptical silver surface plasmonic splitter with refractive index modification of silicon. This spatial asymmetric design achieves even-to-odd mode conversion in the forward direction and blocks propagation of the even mode in the backward direction. The maximum contrast ratio and forward transmission efficiency reach approximately 0...
August 7, 2017: Optics Express
https://www.readbyqxmd.com/read/29040106/noninvasive-blood-pressure-determination-in-left-ventricular-assist-device-patients
#14
David W Barbara, Troy G Seelhammer, William J Mauermann
No abstract text is available yet for this article.
November 2017: Anesthesiology
https://www.readbyqxmd.com/read/29040105/when-managing-patients-with-left-ventricular-assist-devices-undergoing-noncardiac-surgery-less-is-not-more
#15
Robert E Freundlich, Adam J Kingeter
No abstract text is available yet for this article.
November 2017: Anesthesiology
https://www.readbyqxmd.com/read/29039889/robot-assisted-single-port-radical-nephrectomy-and-cholecystectomy-description-and-technical-aspects
#16
Francisco Hidelbrando Alves Mota Filho, Luis Felipe Sávio, Rafael Eiji Sakata, Renato Fidelis Ivanovic, Marco Antonio Nunes da Silva, Ronaldo Maia, Carlo Passerotti
INTRODUCTION: Robot-Assisted Single Site Radical Nephrectomy (RASS-RN) has been reported by surgeons in Europe and United States (1-3). To our best knowledge this video presents the first RASS-RN with concomitant cholecystectomy performed in Latin America. CASE: A 66 year-old renal transplant male due to chronic renal failure presented with an incidental 1.3cm nodule in the upper pole of the right kidney. In addition, symptomatic gallbladder stones were detected...
October 17, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/29039356/strain-modulation-assisted-enhanced-broadband-photodetector-based-on-large-area-flexible-few-layered-gr-mos2-on-cellulose-paper
#17
Parikshit Sahatiya, Sushmee Badhulika
Electronic structure and carrier behavior in semiconductor junctions can be effectively modulated on the application of strain. This work represents the first demonstration of a large-area, flexible, paper-based graphene-molybdenum disulfide (Gr/MoS2) broadband photodetector using a low-cost solution-processed hydrothermal method and enhancement in photodetection through strain modulation by assembling the device on polydimethylsiloxane. Optimization, in terms of process parameters, was carried out to obtain trilayer MoS2 over Gr-cellulose paper...
October 17, 2017: Nanotechnology
https://www.readbyqxmd.com/read/29039311/percutaneous-biventricular-cardiac-assist-device-in-cardiogenic-shock-and-refractory-cardiac-arrest
#18
Julia Ellert, Margrethe Jermiin Jensen, Lisette Okkels Jensen, Jacob Eifer Møller
No abstract text is available yet for this article.
October 17, 2017: EuroIntervention
https://www.readbyqxmd.com/read/29039290/simulated-use-polytetrafluorethylene-biofilm-model-repeated-rounds-of-complete-reprocessing-lead-to-accumulation-of-organic-debris-and-viable-bacteria
#19
Michelle J Alfa, Harminder Singh, Zoann Nugent, Donald Duerksen, Gale Schultz, Carol Reidy, Pat DeGagne, Nancy Olson
OBJECTIVE Biofilm has been implicated in bacterial persistence and survival after endoscope reprocessing. In this study, we assessed the impact of different methods of reprocessing on organic residues and viable bacteria after repeated rounds of biofilm formation when each was followed by full reprocessing. METHODS ATS-2015, an artificial test soil containing 5-8 Log10 colony-forming units (CFU) of Enterococcus faecalis and Pseudomonas aeruginosa, was used to form biofilm in polytetrafluroethylene channels overnight on 5 successive days...
October 17, 2017: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/29038568/impact-of-coulomb-correlations-on-magnetic-anisotropy-in-mn3ga-ferrimagnet
#20
Srijan Kumar Saha, Zhen Liu, Gargi Dutta
Traditional density functional theory (DFT) miserably fails to reproduce the experimental volume and magnetic anisotropy of D022 Mn3Ga, which has recently become one of the most sought-after materials in order to achieve a stable spin switching at low current density. Despite great progress over the last 10 years, this issue has hitherto remained unsolved. Here, taking into account the effects of strong electronic correlations beyond what is included in standard DFT, we show by comparison with the experiment that the DFT+U method is capable of quantitatively describing the volume and the magnetic anisotropy energy (MAE) in this alloy with physically meaningful choice of onsite Coulomb-U parameter...
October 16, 2017: Scientific Reports
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