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146 results for “membrane oxygenator”
Polymer Electrolyte Membrane Water Electrolyzer Oxygen Bubble Evolution Optical Video Recording For Deep Learning-Enhanced Characterization of Bubble Dynamics in Proton Exchange Membrane Water Electrolyzer by André Colliard-Granero, Keusra A. Gompou, Christian Rodenbücher, Kourosh Malek, Michael H. Eikerling, and Mohammad J. Eslamibidgoli
<p>Dataset used for the training of the segmentation model employed in the work "Deep Learning-Enhanced Characterization of Bubble Dynamics in Proton Exchange Membrane Water Electrolyzer" by André Colliard-Granero, Keusra A. Gompou, Christian Rodenbücher, Kourosh Malek, Michael H. Eikerling, and Mohammad J. Eslamibidgoli. This dataset consists in 35 images and the corresponding manual annotated masks of diverse bubbly scenarios extracted from the optical video recording of a PEMWE with a transparent flow field.</p>
Raw Data for the article: Atrial Septostomy for Left Ventricular Unloading During Extracorporeal Membrane Oxygenation for Cardiogenic Shock: Animal Model
<p><strong>Objectives: </strong>The aim of this study was to quantify and understand the unloading effect of percutaneous balloon atrial septostomy (BAS) in acute cardiogenic shock (CS) treated with venoarterial (VA) extracorporeal membranous oxygenation (ECMO).</p> <p><strong>Background: </strong>In CS treated with VA ECMO, increased left ventricular (LV) afterload is observed that commonly interferes with myocardial recovery or even promotes further LV deterioration. Several techniques for LV unloading exist, but the optimal strategy and the actual extent of such procedures have not been fully disclosed.</p> <p><strong>Methods: </strong>In a porcine model (n = 11; weight 56 kg [53-58 kg]), CS was induced by coronary artery balloon occlusion (57 minutes [53-64 minutes]). Then, a step-up VA ECMO protocol (40-80 mL/kg/min) was run before and after percutaneous BAS was performed. LV pressure-volume loops and multiple hemoglobin saturation data were evaluated. The Wilcoxon rank sum test was used to assess individual variable differences.</p> <p><strong>Results: </strong>Immediately after BAS while on VA ECMO support, LV work decreased significantly: pressure-volume area, end-diastolic pressure, and stroke volume to ∼78% and end-systolic pressure to ∼86%, while superior vena cava and tissue oximetry did not change. During elevating VA ECMO support (40-80 mL/kg/min) with BAS vs without BAS, we observed 1) significantly less mechanical work increase (122% vs 172%); 2) no end-diastolic volume increase (100% vs 111%); and 3) a considerable increase in end-systolic pressure (134% vs 144%).</p> <p><strong>Conclusions: </strong>In acute CS supported by VA ECMO, atrial septostomy is an effective LV unloading tool. LV pressure is a key component of LV work load, so whenever LV work reduction is a priority, arterial pressure should carefully be titrated low while maintaining organ perfusion.</p>
Raw Data for the article: Apneic Tracheostomy in COVID-19 Patients on Veno-Venous Extracorporeal Membrane Oxygenation
<p>COVID-19 creates an impressive burden for intensive care units in terms of need for advanced respiratory care, with a huge number of acute respiratory distress syndromes (ARDS) requiring prolonged mechanical ventilation. In some cases, this proves to be insufficient, with a refractory respiratory failure calling for an extracorporeal approach (veno-venous ECMO). In this scenario, most of these patients need an early tracheostomy procedure to be carried out, which creates the risk of distribution of aerosol particles, possibly leading to personnel infection. The use of apneic tracheostomy has been proposed for COVID-19 patients, but in case of ECMO it may produce lung derecruitment, severe hypoxemia, and sudden worsening of respiratory mechanics. We developed an apneic tracheostomy technique and applied it in over 32 patients supported by veno-venous ECMO. We present data showing the safety and feasibility of this technique in terms of patient care and personnel protection. Gas exchange and pH did not show statistically significant changes after the tracheostomy, nor did respiratory mechanics data or the need for inspiratory pressure and FiO<sub>2</sub>. The use of apneic tracheostomy was a safe option for patient care during ECMO and reduced the possibility of virus spreading.</p>
Dataset for the paper "High Loading of Single Atomic Iron Sites in Pyrolysed Fe-NC Oxygen Reduction Catalysts for Proton Exchange Membrane Fuel Cells", DOI:10.1038/s41929-022-00772-9
<p>The data in this spreadsheet was used to produce the figures in the paper </p> <p>Authors: Asad Mehmood, Mengjun Gong, Frédéric Jaouen, Aaron Roy, Andrea Zitolo, Anastassiya Khan, Moulay-Tahar Sougrati, Mathias Primbs, Alex Martinez Bonastre, Dash Fongalland, Goran Drazic, Peter Strasser, Anthony Kucernak</p> <p>Title: High Loading of Single Atomic Iron Sites in Pyrolysed Fe-NC Oxygen Reduction Catalysts for Proton Exchange Membrane Fuel Cells</p> <p>Journal: Nature Materials</p> <p>DOI: 10.1038/s41929-022-00772-9</p> <p>Please cite the above reference if you wish to use this data </p> <p> </p> <p>DOI of data: 10.5281/zenodo.6411262</p>
Raw data for the article: A Randomized Controlled Trial of Antithrombin Supplementation During Extracorporeal Membrane Oxygenation
<p><strong>Objectives: </strong>Supplementation of antithrombin might decrease the amount of heparin needed to achieve a given anticoagulation target during extracorporeal membrane oxygenation. However, exogenous antithrombin itself may increase the risk of bleeding. We conceived a study to evaluate the effect of antithrombin supplementation in adult patients requiring venovenous extracorporeal membrane oxygenation for respiratory failure on heparin dose, adequacy of anticoagulation, and safety.</p> <p><strong>Design: </strong>Prospective randomized controlled trial.</p> <p><strong>Setting: </strong>ICUs of two Italian referral extracorporeal membrane oxygenation centers.</p> <p><strong>Patients: </strong>Adult patients requiring venovenous extracorporeal membrane oxygenation for severe respiratory failure and unfractionated heparin for systemic anticoagulation.</p> <p><strong>Interventions: </strong>Before extracorporeal membrane oxygenation start, patients were randomized to either receive antithrombin concentrate to maintain a plasmatic level 80-120% (treatment) or not (control) during the extracorporeal membrane oxygenation course.</p> <p><strong>Measurements and main results: </strong>The primary outcome was the total amount of heparin required to maintain activated partial thromboplastin time ratio 1.5-2. Secondary outcomes were anti-factor Xa, the incidence of hemorrhagic and thrombotic events, and the amount of blood products transfused. Twenty-four patients in the treatment group and 24 in the control group were included in the intention-to-treat analysis. Antithrombin was 109.5% (93.0-123.0%) in the treatment group and 84.0% (68.5-98.0%) in the control group (p = 0.001). Supplementation of antithrombin did not decrease heparin dose (13.5 international units/kg/hr [9.6-17.9 international units/kg/hr] vs 15.1 international units/kg/hr [10.7-18.3 international units/kg/hr] in the treatment and control group, respectively; p = 0.33) and anti-Factor Xa levels (0.4 international units/mL [0.3-0.5 international units/mL] vs 0.3 international units/mL [0.2-0.5 international units/mL] in the treatment group and control group respectively; p = 0.65). Bleeding, blood product transfusions, and thrombosis were not different in the two groups.</p> <p><strong>Conclusions: </strong>Antithrombin supplementation may not decrease heparin requirement nor diminish the incidence of bleeding and/or thrombosis in adult patients on venovenous extracorporeal membrane oxygenation.</p>
La and Mn-doped cobalt spinel oxygen evolution catalyst for proton exchange membrane electrolysis
<p>Finding electrocatalysts using earth-abundant materials as a replacement to iridium for oxygen-evolution reaction (OER) in proton exchange membrane water electrolyzer (PEMWE) represents a critical step in reducing the cost for green hydrogen production. We report here a nanofibrous cobalt spinel catalyst co-doped with lanthanum and manganese prepared from zeolitic imidazolate framework embedded in electrospun polymer fiber. The catalyst demonstrated a low overpotential of 353 millivolts at 10 milliamperes per square centimeter and a low degradation for OER over 360 hours in acidic electrolyte. PEMWE containing this catalyst at anode demonstrated a current density of 2000 milliamperes per square centimeter at 2.47 volts (Nafion® 115 membrane) or 4000 milliamperes per square centimeter at 3.00 volt (Nafion® 212 membrane), and low degradation in accelerated-stress-test. High-resolution electronic microscopy and operando X-ray absorption spectroscopy, combined with computational modeling, revealed the different functions of lanthanum, manganese, and cobalt in enabling enhanced activity, conductivity and acidic tolerance within the OER operating window.</p>
Impact of Extra Corporal Membrane Oxygenation Services on Burnout Development in Intensive Care Units.
ClinicalTrials.gov study NCT04620005. IPD Sharing: NO. Countries: 1. Publications: 7.
Pharmacokinetics of Tamiflu® (Oseltamivir) in Patients Receiving Extracorporeal Membrane Oxygenation (ECMO)and or Continuous Venovenous Hemodialysis (CVVHD)
ClinicalTrials.gov study NCT01048879. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Ultra Protective Ventilation During Venoarterial Extracorporeal Membrane Oxygenation (UPV-ECMO)
ClinicalTrials.gov study NCT03041428. IPD Sharing: YES. Countries: 1. Publications: 9.
Evaluating the Use of Thromboelastography (TEG) in Patient's Requiring Extracorporeal Membrane Oxygenation (ECMO)
ClinicalTrials.gov study NCT02887820. IPD Sharing: NO. Countries: 1. Publications: 8.
La and Mn-doped cobalt spinel oxygen evolution catalyst for proton exchange membrane electrolysis
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Figures of Conductivity Transitions of La0.7Sr0.3MnO3±d andLa0.6Sr0.4Co0.2Fe0.8O3-d in Ce0.9Gd0.1O2-d Matrix for Dual-Phase Oxygen Transport Membranes
<p>Figures of the article "Conductivity Transitions of La0.7Sr0.3MnO3±d andLa0.6Sr0.4Co0.2Fe0.8O3-d in Ce0.9Gd0.1O2-d Matrix for Dual-Phase Oxygen Transport Membranes"</p>
The nociceptive withdrawal reflex during spinal analgesia in pigs undergoing veno-arterial extracorporeal membrane oxygenation: a prospective observational study.
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Membranes for oxygen separation
<p>Performance test of membrane for oxygen separation</p>
Pharmacokinetics of Colistin in Critically Ill Patients With Extracorporeal Membrane Oxygenation
ClinicalTrials.gov study NCT05542446. IPD Sharing: NO. Countries: 1. Publications: 1.
Prognosis of Veno-Venous Extracorporeal Membrane Oxygenation in Emergency Thoracic Surgery
ClinicalTrials.gov study NCT07016685. IPD Sharing: NO. Countries: 1. Publications: 1.
Acute Neurological Complications and Neurodevelopmental Outcome in Children Undergoing Extracorporeal Membrane Oxygenation.
ClinicalTrials.gov study NCT04519528. IPD Sharing: NO. Countries: 1. Publications: 1.
Extracorporeal Membrane Oxygenation for Severe Acute Respiratory Distress Syndrome
ClinicalTrials.gov study NCT01470703. IPD Sharing: Not stated. Countries: 1. Publications: 4.
Cytokine Adsorption in Severe COVID-19 Pneumonia Requiring Extracorporeal Membrane Oxygenation
ClinicalTrials.gov study NCT04324528. IPD Sharing: NO. Countries: 1. Publications: 1.
Circulating Tumor Cells (CTC) Before and After Thoracic Resection With and Without Intraoperative Use of ExtraCorporeal Membrane Oxygenator(ECMO) or Cardio Pulmonary By Pass (CPB)
ClinicalTrials.gov study NCT04048512. IPD Sharing: NO. Countries: 1. Publications: 10.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.